5.8.0.10

xftp server: send HTTP2 error as timeout error to the client so it is treated as temporary (#1186 )
* xftp server: log file reception error * report HTTP2 error as timeout error * reduce timeout to 5 min * process timeout error in protocol response * log warning on timeout/HTTP2 error
2026-09-01 18:08:36 +00:00 · 2024-05-31 22:20:30 +01:00 · 2024-05-31 22:18:28 +01:00 · 2024-05-31 14:25:57 +01:00 · 2024-05-31 14:25:19 +01:00 · 2024-05-31 14:23:21 +01:00
63 changed files with 6330 additions and 166 deletions
@@ -1,3 +1,13 @@
+# 5.7.6
+
+XFTP agent:
+- treat XFTP handshake timeouts and network errors as temporary, to retry file operations.
+
+# 5.7.5
+
+SMP agent:
+- fail if non-unique connection IDs are passed to sendMessages (to prevent client errors and deadlocks).
+
 # 5.7.4

 SMP agent:
@@ -1,10 +1,9 @@
-{-# LANGUAGE LambdaCase #-}
-
 module Main where

 import Control.Logger.Simple
 import Simplex.Messaging.Server.CLI (getEnvPath)
 import Simplex.Messaging.Server.Main
+import qualified Static

 defaultCfgPath :: FilePath
 defaultCfgPath = "/etc/opt/simplex"
@@ -20,4 +19,4 @@ main = do
  setLogLevel LogDebug
  cfgPath <- getEnvPath "SMP_SERVER_CFG_PATH" defaultCfgPath
  logPath <- getEnvPath "SMP_SERVER_LOG_PATH" defaultLogPath
-  withGlobalLogging logCfg $ smpServerCLI cfgPath logPath
+  withGlobalLogging logCfg $ smpServerCLI_ Static.generateSite Static.serveStaticFiles cfgPath logPath
@@ -0,0 +1 @@
+../link.html
@@ -0,0 +1 @@
+../link.html
@@ -0,0 +1,26 @@
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+(function () {
+
+  let complete = false
+  run()
+  window.onload = run
+
+  async function run() {
+    const connURIel = document.getElementById("conn_req_uri_text");
+    const mobileConnURIanchor = document.getElementById("mobile_conn_req_uri");
+    const connQRCodes = document.getElementsByClassName("conn_req_uri_qrcode");
+    console.log(connQRCodes);
+    if (complete || !connURIel || !mobileConnURIanchor || connQRCodes < 2) return
+    complete = true
+    let connURI = document.location.toString()
+    const parsedURI = new URL(connURI)
+    const path = parsedURI.pathname.split("/")
+    const len = path.length
+    const action = path[len - (path[len - 1] == "" ? 2 : 1)]
+    parsedURI.protocol = "https"
+    parsedURI.pathname = "/" + action
+    connURI = parsedURI.toString()
+    console.log("connection URI: ", connURI)
+    mobileConnURIanchor.href = "simplex:" + parsedURI.pathname + parsedURI.hash
+    connURIel.innerText = "/c " + connURI
+    for (const connQRCode of connQRCodes) {
+      try {
+        await QRCode.toCanvas(connQRCode, connURI, {
+          errorCorrectionLevel: "M",
+          color: {dark: "#062D56"}
+        });
+        connQRCode.style.width = "320px";
+        connQRCode.style.height = "320px";
+      } catch (err) {
+        console.error(err);
+      }
+    }
+
+    function contentCopyWithTooltip(parent) {
+      const content = parent.querySelector(".content");
+      const tooltip = parent.querySelector(".tooltiptext");
+      console.log(parent.querySelector(".content_copy"), 111)
+      console.log(parent)
+      const copyButton = parent.querySelector(".content_copy");
+      copyButton.addEventListener("click", copyAddress)
+      copyButton.addEventListener("mouseout", resetTooltip)
+
+      function copyAddress() {
+        navigator.clipboard.writeText(content.innerText || content.value);
+        tooltip.innerHTML = "Copied!";
+      }
+
+      function resetTooltip() {
+        tooltip.innerHTML = "Copy to clipboard";
+      }
+    }
+
+    function copyAddress() {
+      navigator.clipboard.writeText(connURI);
+      tooltipEl.innerHTML = "Copied!";
+    }
+
+    function resetTooltip() {
+      tooltipEl.innerHTML = "Copy to clipboard";
+    }
+  }
+})();
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+<path d="M10.4 8C10.1 8.3 10 8.8 10 9.4V31.5C10 32.1 10.2 32.6 10.5 32.9L10.6 33L23 20.6V20.4L10.4 8Z" fill="url(#paint0_linear_7_408)"/>
+<path d="M27 24.8L22.9 20.7V20.4L27 16.3L27.1 16.4L32 19.2C33.4 20 33.4 21.3 32 22.1L27 24.8V24.8Z" fill="url(#paint1_linear_7_408)"/>
+<path d="M27.1 24.7L22.9 20.5L10.4 33C10.9 33.5 11.6 33.5 12.5 33.1L27.1 24.7" fill="url(#paint2_linear_7_408)"/>
+<path d="M27.1 16.3001L12.5 8.00005C11.6 7.50005 10.9 7.60005 10.4 8.10005L22.9 20.5001L27.1 16.3001V16.3001Z" fill="url(#paint3_linear_7_408)"/>
+<path opacity="0.2" d="M27 24.6L12.5 32.8C11.7 33.3 11 33.2 10.5 32.8L10.4 32.9L10.5 33C11 33.4 11.7 33.5 12.5 33L27 24.6Z" fill="black"/>
+<path opacity="0.12" d="M10.4 32.8C10.1 32.5 10 32 10 31.4V31.5C10 32.1 10.2 32.6 10.5 32.9V32.8H10.4ZM32 21.8L27 24.6L27.1 24.7L32 21.9C32.7 21.5 33 21 33 20.5C33 21 32.6 21.4 32 21.8V21.8Z" fill="black"/>
+<path opacity="0.25" d="M12.5 8.10003L32 19.2C32.6 19.6 33 20 33 20.5C33 20 32.7 19.5 32 19.1L12.5 8.00003C11.1 7.20003 10 7.80003 10 9.40003V9.50003C10 8.00003 11.1 7.30003 12.5 8.10003Z" fill="white"/>
+<defs>
+<linearGradient id="paint0_linear_7_408" x1="21.8" y1="9.21" x2="5.017" y2="25.992" gradientUnits="userSpaceOnUse">
+<stop stop-color="#00A0FF"/>
+<stop offset="0.007" stop-color="#00A1FF"/>
+<stop offset="0.26" stop-color="#00BEFF"/>
+<stop offset="0.512" stop-color="#00D2FF"/>
+<stop offset="0.76" stop-color="#00DFFF"/>
+<stop offset="1" stop-color="#00E3FF"/>
+</linearGradient>
+<linearGradient id="paint1_linear_7_408" x1="33.834" y1="20.501" x2="9.63699" y2="20.501" gradientUnits="userSpaceOnUse">
+<stop stop-color="#FFE000"/>
+<stop offset="0.409" stop-color="#FFBD00"/>
+<stop offset="0.775" stop-color="#FFA500"/>
+<stop offset="1" stop-color="#FF9C00"/>
+</linearGradient>
+<linearGradient id="paint2_linear_7_408" x1="24.827" y1="22.796" x2="2.069" y2="45.554" gradientUnits="userSpaceOnUse">
+<stop stop-color="#FF3A44"/>
+<stop offset="1" stop-color="#C31162"/>
+</linearGradient>
+<linearGradient id="paint3_linear_7_408" x1="7.29699" y1="0.676051" x2="17.46" y2="10.8391" gradientUnits="userSpaceOnUse">
+<stop stop-color="#32A071"/>
+<stop offset="0.069" stop-color="#2DA771"/>
+<stop offset="0.476" stop-color="#15CF74"/>
+<stop offset="0.801" stop-color="#06E775"/>
+<stop offset="1" stop-color="#00F076"/>
+</linearGradient>
+</defs>
+</svg>
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+<svg width="34" height="35" viewBox="0 0 34 35" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M3.02958 8.60922L8.622 14.2013L14.3705 8.45375L17.1669 11.2498L11.4183 16.9972L17.0114 22.5895L14.1373 25.4633L8.54422 19.871L2.79636 25.6187L0 22.8227L5.74794 17.075L0.155484 11.483L3.02958 8.60922Z" fill="white"/>
+<path fill-rule="evenodd" clip-rule="evenodd" d="M14.0923 25.5156L16.944 22.6642L16.9429 22.6634L22.6467 16.9612L17.0513 11.3675L17.0523 11.367L14.2548 8.56979L8.65972 2.97535L11.5114 0.123963L17.1061 5.71849L22.8099 0.015625L25.6074 2.81285L19.9035 8.51562L25.4984 14.1099L31.2025 8.40729L34 11.2045L28.2958 16.907L33.8917 22.5017L31.0399 25.3531L25.4442 19.7584L19.7409 25.4611L25.3365 31.0559L22.4848 33.9073L16.8892 28.3124L11.1864 34.0156L8.38885 31.2184L14.0923 25.5156Z" fill="url(#paint0_linear_656_10815)"/>
+<defs>
+<linearGradient id="paint0_linear_656_10815" x1="12.8381" y1="-0.678252" x2="9.54355" y2="31.4493" gradientUnits="userSpaceOnUse">
+<stop stop-color="#01F1FF"/>
+<stop offset="1" stop-color="#0197FF"/>
+</linearGradient>
+</defs>
+</svg>
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+<svg width="34" height="34" viewBox="0 0 34 34" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_14_10)">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M3.02972 8.59396L8.62219 14.186L14.3703 8.43848L17.1668 11.2346L11.4182 16.982L17.0112 22.5742L14.1371 25.448L8.5441 19.8557L2.79651 25.6035L0 22.8074L5.74813 17.0597L0.155656 11.4678L3.02972 8.59396Z" fill="#023789"/>
+<path fill-rule="evenodd" clip-rule="evenodd" d="M14.0922 25.5L16.9434 22.6486L16.9423 22.6478L22.6464 16.9456L17.0512 11.3519L17.0518 11.3514L14.2542 8.55418L8.65961 2.95973L11.5114 0.108337L17.106 5.70288L22.8095 0L25.607 2.79722L19.903 8.5L25.4981 14.0943L31.2022 8.39169L33.9997 11.1889L28.2957 16.8914L33.8914 22.4861L31.0396 25.3375L25.4439 19.7428L19.7404 25.4454L25.3361 31.0403L22.4843 33.8917L16.8887 28.2968L11.1862 34L8.38867 31.2028L14.0922 25.5Z" fill="url(#paint0_linear_14_10)"/>
+</g>
+<defs>
+<linearGradient id="paint0_linear_14_10" x1="12.8379" y1="-0.693875" x2="9.54344" y2="31.4337" gradientUnits="userSpaceOnUse">
+<stop stop-color="#01F1FF"/>
+<stop offset="1" stop-color="#0197FF"/>
+</linearGradient>
+<clipPath id="clip0_14_10">
+<rect width="34" height="34" fill="white"/>
+</clipPath>
+</defs>
+</svg>
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+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M2.92814 12.6789C6.17655 15.9347 11.7044 15.6463 14.5425 12.0117C14.6636 11.8566 14.6825 11.6448 14.5907 11.4708C14.4989 11.2967 14.3136 11.1926 14.1172 11.2049C11.5269 11.3673 8.97627 10.4315 7.0743 8.52765C5.17264 6.62414 4.23958 4.06868 4.40169 1.47281C4.41397 1.2762 4.30965 1.09069 4.13526 0.999048C3.96088 0.907402 3.74893 0.926696 3.59396 1.04833C3.36099 1.23117 3.13828 1.42685 2.92823 1.63726C-0.111372 4.68223 -0.111585 9.63533 2.92814 12.6789Z" stroke="black" stroke-miterlimit="10" stroke-linejoin="round"/>
+</svg>
@@ -0,0 +1,39 @@
+const isMobile = {
+    Android: () => navigator.userAgent.match(/Android/i),
+    iOS: () => navigator.userAgent.match(/iPhone|iPad|iPod/i)
+};
+
+window.addEventListener('click', clickHandler)
+
+if (isMobile.iOS) {
+    for (const btn of document.getElementsByClassName("close-overlay-btn")) {
+        btn.addEventListener("touchend", (e) => setTimeout(() => closeOverlay(e), 100))
+    }
+}
+
+function clickHandler(e) {
+    if (e.target.closest('.contact-tab-btn')) {
+        e.target.closest('.contact-tab').classList.toggle('active')
+    }
+}
+
+window.addEventListener('load', () => {
+    const googlePlayBtn = document.querySelector('.google-play-btn');
+    const appleStoreBtn = document.querySelector('.apple-store-btn');
+    const fDroidBtn = document.querySelector('.f-droid-btn');
+    if (!googlePlayBtn || !appleStoreBtn || !fDroidBtn) return;
+
+
+    if (isMobile.Android()) {
+        googlePlayBtn.classList.remove('hidden');
+        fDroidBtn.classList.remove('hidden');
+    }
+    else if (isMobile.iOS()) {
+        appleStoreBtn.classList.remove('hidden');
+    }
+    else {
+        appleStoreBtn.classList.remove('hidden');
+        googlePlayBtn.classList.remove('hidden');
+        fDroidBtn.classList.remove('hidden');
+    }
+})
@@ -0,0 +1,410 @@
+@font-face {
+  font-family: Gilroy;
+  src: url("GilroyRegular.woff2") format("woff2");
+  font-weight: 400;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: Gilroy;
+  src: url("GilroyLight.woff2") format("woff2");
+  font-weight: 300;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: Gilroy;
+  src: url("GilroyMedium.woff2") format("woff2");
+  font-weight: 500;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: Gilroy;
+  src: url("GilroyBold.woff2") format("woff2");
+  font-weight: 700;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: Gilroy;
+  src: url("GilroyRegularItalic.woff2") format("woff2");
+  font-weight: 400;
+  font-style: italic;
+}
+
+html {
+  scroll-behavior: smooth;
+  font-family: Gilroy, Helvetica, sans-serif;
+  ;
+  letter-spacing: 0.003em;
+}
+
+img {
+  user-select: none;
+  -webkit-user-select: none;
+  /* For Safari and older Chrome versions */
+  -moz-user-select: none;
+  /* For Firefox */
+  -ms-user-select: none;
+  /* For Internet Explorer and Edge */
+}
+
+/* NEW SITE */
+.container,
+.container-fluid,
+.container-xxl,
+.container-xl,
+.container-lg,
+.container-md,
+.container-sm {
+  width: 100%;
+  /* padding: 0 20px; */
+  margin-right: auto;
+  margin-left: auto;
+}
+
+@media (min-width: 576px) {
+
+  .container-sm,
+  .container {
+    max-width: 540px;
+  }
+}
+
+@media (min-width: 768px) {
+
+  .container-md,
+  .container-sm,
+  .container {
+    max-width: 720px;
+  }
+}
+
+@media (min-width: 992px) {
+
+  .container-lg,
+  .container-md,
+  .container-sm,
+  .container {
+    max-width: 960px;
+  }
+}
+
+@media (min-width: 1200px) {
+
+  .container-xl,
+  .container-lg,
+  .container-md,
+  .container-sm,
+  .container {
+    max-width: 1140px;
+  }
+}
+
+@media (min-width: 1400px) {
+
+  .container-xxl,
+  .container-xl,
+  .container-lg,
+  .container-md,
+  .container-sm,
+  .container {
+    max-width: 1320px;
+  }
+}
+
+.gradient-text {
+  background: -webkit-linear-gradient(to bottom, #53C1FF -50%, #0053D0 160%);
+  background: linear-gradient(to bottom, #53C1FF -50%, #0053D0 160%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  text-fill-color: transparent;
+}
+
+.dark .border-gradient {
+  background:
+    linear-gradient(#11182F, #11182F) padding-box,
+    linear-gradient(to bottom, transparent, #01F1FF 58%) border-box;
+  border: 1px solid transparent;
+}
+
+.dark .only-light {
+  display: none;
+}
+
+.only-dark {
+  display: none;
+}
+
+.dark .only-dark {
+  display: inherit;
+}
+
+.menu-link {
+  font-size: 16px;
+  line-height: 33.42px;
+  color: #0D0E12;
+}
+
+.dark .menu-link {
+  color: #fff;
+}
+
+.nav-link ul li a.active {
+  color: #0053D0;
+
+}
+
+.dark .nav-link ul li a.active {
+  color: #66D9E2;
+}
+
+@media (min-width:1024px) {
+
+  .nav-link-text,
+  .menu-link {
+    display: inline-block;
+    position: relative;
+    color: #0D0E12;
+  }
+
+  .nav-link-text::before,
+  .active .nav-link-text::before,
+  .menu-link::before {
+    content: "";
+    position: absolute;
+    width: 0;
+    height: 1px;
+    bottom: 0;
+    right: 0;
+    /* background-color: initial; */
+    transition: width 0.25s ease-out;
+  }
+
+  .menu-link::before {
+    background-color: #0D0E12;
+  }
+
+  .dark .menu-link::before {
+    background-color: #fff;
+  }
+
+  .active .nav-link-text::before {
+    width: 100%;
+  }
+
+  .nav-link:hover .nav-link-text::before,
+  .menu-link:hover::before {
+    width: 100%;
+    left: 0;
+    right: auto;
+  }
+}
+
+
+.sub-menu {
+  visibility: hidden;
+  opacity: 0;
+  color: #505158;
+}
+
+.sub-menu .no-hover {
+  color: #505158 !important;
+}
+
+.dark .sub-menu,
+.dark .sub-menu .no-hover {
+  color: #fff !important;
+}
+
+.dark .sub-menu li:hover {
+  color: #66D9E2;
+}
+
+.sub-menu li:hover {
+  color: #0053D0;
+}
+
+.sub-menu {
+  transition: all .3s ease !important;
+}
+
+.nav-link span svg,
+header nav {
+  transition: all 0.5s ease;
+}
+
+.nav-link:hover span svg {
+  transform: rotate(180deg);
+}
+
+@media (min-width:1024px) {
+
+  .nav-link:hover .sub-menu,
+  .nav-link:focus-within .sub-menu {
+    visibility: visible;
+    opacity: 1;
+    margin-top: 0;
+  }
+}
+
+@media (max-width: 1024px) {
+  .sub-menu {
+    max-height: 0;
+    transform: translateY(-10px);
+    transition: all .7s ease !important;
+  }
+
+  .active .sub-menu {
+    max-height: 600px;
+    transform: translateY(0px);
+    opacity: 1;
+    visibility: visible;
+    margin-top: 0;
+  }
+
+  header nav {
+    visibility: hidden;
+    opacity: 0;
+    transform: translateX(100%);
+  }
+
+  header nav.open {
+    visibility: visible;
+    opacity: 1;
+    transform: translateX(0);
+  }
+}
+
+.lock-scroll {
+  overflow: hidden;
+}
+
+/* hero */
+header {
+  transition: all .7s ease;
+}
+
+.primary-header {
+  background: linear-gradient(270deg, #0053D0 35.85%, #0197FF 94.78%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  text-shadow: 0px 4px 74px #e9e7e2;
+}
+
+.dark .primary-header {
+  background: linear-gradient(270deg, #70F0F9 100%, #70F0F9 100%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  text-shadow: none;
+}
+
+.secondary-header {
+  color: #606c71;
+  text-shadow: 0px 4px 74px #e9e7e2;
+}
+
+.dark .secondary-header {
+  color: #fff;
+  text-shadow: none;
+}
+
+.description {
+  width: 31rem;
+}
+
+p a {
+  color: #0053D0;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}
+
+.dark p a {
+  color: #70F0F9;
+}
+
+/* For Contact & Invitation Page */
+.primary-header-contact {
+  background: linear-gradient(251.16deg, #53c1ff 1.1%, #0053d0 100.82%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  text-shadow: 0px 4px 74px #e9e7e2;
+}
+
+.dark .primary-header-contact {
+  background: linear-gradient(270deg, #70F0F9 100%, #70F0F9 100%);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  text-shadow: none;
+}
+
+.secondary-header-contact {
+  text-shadow: 0px 4px 74px #e9e7e2;
+}
+
+.dark .secondary-header-contact {
+  text-shadow: none;
+}
+
+.content_copy_with_tooltip {
+  background-color: #f8f8f6;
+  border-radius: 50px;
+  padding-bottom: 4px;
+  padding-top: 8px;
+  margin-top: 16px;
+  margin-bottom: 16px;
+}
+
+.content_copy_with_tooltip .tooltip {
+  vertical-align: -6px;
+}
+
+.content_copy_with_tooltip .content {
+  font-size: 15px;
+}
+
+.contact-tab>.contact-tab-content,
+.job-tab>.job-tab-content {
+  opacity: 0;
+  max-height: 0;
+  transition: all 0.5s ease;
+  visibility: hidden;
+  transform: translateY(10px);
+  overflow: hidden;
+}
+
+.contact-tab svg,
+.job-tab svg {
+  transform: rotate(-180deg);
+  transition: all .5s ease;
+}
+
+.contact-tab.active>.contact-tab-content,
+.job-tab.active>.job-tab-content {
+  opacity: 1;
+  max-height: 300px;
+  visibility: visible;
+  transform: translateY(0px);
+}
+
+.for-tablet .contact-tab.active>.contact-tab-content,
+.for-tablet .job-tab.active>.job-tab-content {
+  min-height: 450px;
+}
+
+.contact-tab.active svg,
+.contact-tab:hover svg,
+.job-tab.active svg,
+.job-tab:hover svg {
+  transform: rotate(0deg);
+}
+
+.d-none-if-js-disabled {
+  display: none !important;
+}
@@ -0,0 +1,11 @@
+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M23.9958 12.2815C23.9363 12.3954 23.8849 12.5146 23.8158 12.6224C23.5945 12.9674 23.2766 13.1624 22.8654 13.1685C22.2182 13.1782 21.5707 13.1764 20.9234 13.17C20.2781 13.1636 19.7772 12.6464 19.7773 11.9999C19.7774 11.3535 20.2754 10.8389 20.9237 10.8303C21.532 10.8221 22.1405 10.8258 22.7488 10.8278C23.3522 10.8298 23.7281 11.0908 23.9462 11.6508C23.956 11.6761 23.9789 11.6964 23.9958 11.719C23.9958 11.9064 23.9958 12.094 23.9958 12.2815Z" fill="white"/>
+<path d="M11.7154 24.0003C11.6217 23.9526 11.5256 23.9088 11.4345 23.8564C11.0545 23.6377 10.836 23.3104 10.8286 22.87C10.8175 22.2149 10.8179 21.5593 10.828 20.9042C10.8378 20.2738 11.3597 19.7812 11.9967 19.7812C12.6336 19.7812 13.155 20.2739 13.1654 20.9042C13.1757 21.5359 13.1717 22.168 13.1682 22.7998C13.1652 23.3392 12.8885 23.7369 12.3906 23.937C12.3509 23.9529 12.3153 23.979 12.2779 24.0003C12.0904 24.0003 11.9029 24.0003 11.7154 24.0003Z" fill="white"/>
+<path d="M17.2592 11.9958C17.2733 14.8825 14.9232 17.2468 12.0032 17.2612C9.11732 17.2754 6.75397 14.9264 6.73836 12.0041C6.72295 9.12027 9.07502 6.75326 11.9946 6.73835C14.8788 6.72363 17.2449 9.07587 17.2592 11.9958Z" stroke="white" stroke-width="1.5"/>
+<path d="M13.1693 2.11324C13.1692 2.43329 13.1744 2.75345 13.1682 3.07341C13.1555 3.7216 12.6425 4.21934 11.995 4.21864C11.3493 4.21789 10.8358 3.71808 10.828 3.06768C10.8204 2.42766 10.8201 1.78736 10.8283 1.14738C10.8365 0.500704 11.3562 -0.000843934 12.0007 1.06615e-06C12.6437 0.000846066 13.1564 0.504314 13.1684 1.15307C13.1743 1.47303 13.1694 1.79318 13.1693 2.11324Z" fill="white"/>
+<path d="M2.10878 13.1714C1.78877 13.1714 1.46872 13.1754 1.14885 13.1705C0.504832 13.1605 -0.000422735 12.6426 2.65407e-07 11.9987C0.000423265 11.3553 0.503376 10.838 1.15138 10.8301C1.79126 10.8223 2.43138 10.8222 3.07126 10.8303C3.72034 10.8385 4.21822 11.3541 4.21794 12.0012C4.21766 12.6477 3.71555 13.1609 3.06872 13.1706C2.7488 13.1753 2.42875 13.1714 2.10878 13.1714Z" fill="white"/>
+<path d="M6.85268 5.524C6.82732 6.152 6.60944 6.52005 6.16969 6.72981C5.73844 6.93552 5.29738 6.90378 4.94534 6.58208C4.41604 6.09838 3.90431 5.59148 3.42451 5.05894C3.02923 4.62023 3.09727 3.9209 3.51626 3.50792C3.9361 3.09409 4.63284 3.03567 5.06893 3.43194C5.59381 3.90888 6.09569 4.41446 6.57188 4.93996C6.73726 5.12252 6.79642 5.4014 6.85268 5.524Z" fill="white"/>
+<path d="M17.1426 18.4446C17.1749 17.8424 17.389 17.4819 17.8198 17.2738C18.2418 17.07 18.6812 17.0888 19.0265 17.3998C19.5706 17.8899 20.0919 18.4099 20.5814 18.9544C20.9675 19.384 20.895 20.0764 20.485 20.4873C20.0824 20.8907 19.3961 20.9756 18.9718 20.5988C18.4129 20.1026 17.89 19.5625 17.3864 19.0096C17.2323 18.8405 17.1926 18.5671 17.1426 18.4446Z" fill="white"/>
+<path d="M18.2026 6.84235C17.8449 6.82333 17.4821 6.61377 17.2723 6.18256C17.0626 5.7515 17.0878 5.30837 17.4061 4.95629C17.8919 4.41887 18.4055 3.90234 18.945 3.41897C19.3826 3.02693 20.0905 3.1037 20.4947 3.52429C20.9057 3.95198 20.9561 4.64003 20.5568 5.07805C20.0843 5.59645 19.576 6.08306 19.071 6.5708C18.8688 6.76619 18.6057 6.84832 18.2026 6.84235Z" fill="white"/>
+<path d="M5.54205 17.1445C6.14812 17.1747 6.51058 17.385 6.72137 17.8153C6.9323 18.2459 6.90765 18.6892 6.58942 19.0415C6.1037 19.5791 5.58933 20.0948 5.05088 20.5795C4.62165 20.9659 3.93035 20.8989 3.51681 20.4933C3.09875 20.0833 3.02864 19.3789 3.4227 18.942C3.908 18.404 4.42706 17.8934 4.96382 17.4066C5.13982 17.247 5.41663 17.1985 5.54205 17.1445Z" fill="white"/>
+</svg>
@@ -0,0 +1,176 @@
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE OverloadedStrings #-}
+
+module Static where
+
+import Control.Logger.Simple
+import Control.Monad
+import Data.ByteString (ByteString)
+import qualified Data.ByteString as B
+import Data.Maybe (fromMaybe)
+import Data.String (fromString)
+import Data.Text.Encoding (encodeUtf8)
+import Network.Wai.Application.Static as S
+import Network.Wai.Handler.Warp as W
+import qualified Network.Wai.Handler.WarpTLS as W
+import Simplex.Messaging.Encoding.String (strEncode)
+import Simplex.Messaging.Server.Information
+import Simplex.Messaging.Server.Main (EmbeddedWebParams (..), WebHttpsParams (..))
+import Simplex.Messaging.Transport.Client (TransportHost (..))
+import Simplex.Messaging.Util (tshow)
+import Static.Embedded as E
+import System.Directory (createDirectoryIfMissing)
+import System.FilePath
+import UnliftIO.Concurrent (forkFinally)
+
+serveStaticFiles :: EmbeddedWebParams -> IO ()
+serveStaticFiles EmbeddedWebParams {webStaticPath, webHttpPort, webHttpsParams} = do
+  forM_ webHttpPort $ \port -> flip forkFinally (\e -> logError $ "HTTP server crashed: " <> tshow e) $ do
+    logInfo $ "Serving static site on port " <> tshow port
+    W.runSettings (mkSettings port) (S.staticApp $ S.defaultFileServerSettings webStaticPath)
+  forM_ webHttpsParams $ \WebHttpsParams {port, cert, key} -> flip forkFinally (\e -> logError $ "HTTPS server crashed: " <> tshow e) $ do
+    logInfo $ "Serving static site on port " <> tshow port <> " (TLS)"
+    W.runTLS (W.tlsSettings cert key) (mkSettings port) (S.staticApp $ S.defaultFileServerSettings webStaticPath)
+  where
+    mkSettings port = setPort port defaultSettings
+
+generateSite :: ServerInformation -> Maybe TransportHost -> FilePath -> IO ()
+generateSite si onionHost sitePath = do
+  createDirectoryIfMissing True sitePath
+  B.writeFile (sitePath </> "index.html") $ serverInformation si onionHost
+  createDirectoryIfMissing True $ sitePath </> "media"
+  forM_ E.mediaContent $ \(path, bs) -> B.writeFile (sitePath </> "media" </> path) bs
+  createDirectoryIfMissing True $ sitePath </> "contact"
+  B.writeFile (sitePath </> "contact" </> "index.html") E.linkHtml
+  createDirectoryIfMissing True $ sitePath </> "invitation"
+  B.writeFile (sitePath </> "invitation" </> "index.html") E.linkHtml
+  logInfo $ "Generated static site contents at " <> tshow sitePath
+
+serverInformation :: ServerInformation -> Maybe TransportHost -> ByteString
+serverInformation ServerInformation {config, information} onionHost = render E.indexHtml substs
+  where
+    substs = substConfig <> maybe [] substInfo information <> [("onionHost", strEncode <$> onionHost)]
+    substConfig =
+      [ ( "persistence",
+          Just $ case persistence config of
+            SPMMemoryOnly -> "In-memory only"
+            SPMQueues -> "Queues"
+            SPMMessages -> "Queues and messages"
+        ),
+        ("messageExpiration", Just $ maybe "Never" (fromString . timedTTLText) $ messageExpiration config),
+        ("statsEnabled", Just . yesNo $ statsEnabled config),
+        ("newQueuesAllowed", Just . yesNo $ newQueuesAllowed config),
+        ("basicAuthEnabled", Just . yesNo $ basicAuthEnabled config)
+      ]
+    yesNo True = "Yes"
+    yesNo False = "No"
+    substInfo spi =
+      concat
+        [ basic,
+          maybe [("usageConditions", Nothing), ("usageAmendments", Nothing)] conds (usageConditions spi),
+          maybe [("operator", Nothing)] operatorE (operator spi),
+          maybe [("admin", Nothing)] admin (adminContacts spi),
+          maybe [("complaints", Nothing)] complaints (complaintsContacts spi),
+          maybe [("hosting", Nothing)] hostingE (hosting spi),
+          server
+        ]
+      where
+        basic =
+          [ ("sourceCode", Just . encodeUtf8 $ sourceCode spi),
+            ("website", encodeUtf8 <$> website spi)
+          ]
+        conds ServerConditions {conditions, amendments} =
+          [ ("usageConditions", Just $ encodeUtf8 conditions),
+            ("usageAmendments", encodeUtf8 <$> amendments)
+          ]
+        operatorE Entity {name, country} =
+          [ ("operator", Just ""),
+            ("operatorEntity", Just $ encodeUtf8 name),
+            ("operatorCountry", encodeUtf8 <$> country)
+          ]
+        admin ServerContactAddress {simplex, email, pgp} =
+          [ ("admin", Just ""),
+            ("adminSimplex", strEncode <$> simplex),
+            ("adminEmail", encodeUtf8 <$> email),
+            ("adminPGP", encodeUtf8 . pkURI <$> pgp),
+            ("adminPGPFingerprint", encodeUtf8 . pkFingerprint <$> pgp)
+          ]
+        complaints ServerContactAddress {simplex, email, pgp} =
+          [ ("complaints", Just ""),
+            ("complaintsSimplex", strEncode <$> simplex),
+            ("complaintsEmail", encodeUtf8 <$> email),
+            ("complaintsPGP", encodeUtf8 . pkURI <$> pgp),
+            ("complaintsPGPFingerprint", encodeUtf8 . pkFingerprint <$> pgp)
+          ]
+        hostingE Entity {name, country} =
+          [ ("hosting", Just ""),
+            ("hostingEntity", Just $ encodeUtf8 name),
+            ("hostingCountry", encodeUtf8 <$> country)
+          ]
+        server =
+          [ ("serverCountry", fmap encodeUtf8 $ serverCountry =<< information)
+          ]
+
+-- Copy-pasted from simplex-chat Simplex.Chat.Types.Preferences
+{-# INLINE timedTTLText #-}
+timedTTLText :: (Integral i, Show i) => i -> String
+timedTTLText 0 = "0 sec"
+timedTTLText ttl = do
+  let (m', s) = ttl `quotRem` 60
+      (h', m) = m' `quotRem` 60
+      (d', h) = h' `quotRem` 24
+      (mm, d) = d' `quotRem` 30
+  unwords $
+    [mms mm | mm /= 0]
+      <> [ds d | d /= 0]
+      <> [hs h | h /= 0]
+      <> [ms m | m /= 0]
+      <> [ss s | s /= 0]
+  where
+    ss s = show s <> " sec"
+    ms m = show m <> " min"
+    hs 1 = "1 hour"
+    hs h = show h <> " hours"
+    ds 1 = "1 day"
+    ds 7 = "1 week"
+    ds 14 = "2 weeks"
+    ds d = show d <> " days"
+    mms 1 = "1 month"
+    mms mm = show mm <> " months"
+
+-- | Rewrite source with provided substitutions
+render :: ByteString -> [(ByteString, Maybe ByteString)] -> ByteString
+render src = \case
+  [] -> src
+  (label, content') : rest -> render (section_ label content' src) rest
+
+-- | Rewrite section content inside @<x-label>...</x-label>@ markers.
+-- Markers are always removed when found. Closing marker is mandatory.
+-- If content is absent, whole section is removed.
+-- Section content is delegated to `item_`. If no sections found, the whole source is delegated.
+section_ :: ByteString -> Maybe ByteString -> ByteString -> ByteString
+section_ label content' src =
+  case B.breakSubstring startMarker src of
+    (_, "") -> item_ label (fromMaybe "" content') src -- no section, just replace items
+    (before, afterStart') ->
+      -- found section start, search for end too
+      case B.breakSubstring endMarker $ B.drop (B.length startMarker) afterStart' of
+        (_, "") -> error $ "missing section end: " <> show endMarker
+        (inside, next') ->
+          let next = B.drop (B.length endMarker) next'
+           in case content' of
+                Nothing -> before <> next -- collapse section
+                Just content -> before <> item_ label content inside <> section_ label content' next
+  where
+    startMarker = "<x-" <> label <> ">"
+    endMarker = "</x-" <> label <> ">"
+
+-- | Replace all occurences of @${label}@ with provided content.
+item_ :: ByteString -> ByteString -> ByteString -> ByteString
+item_ label content' src =
+  case B.breakSubstring marker src of
+    (done, "") -> done
+    (before, after') -> before <> content' <> item_ label content' (B.drop (B.length marker) after')
+  where
+    marker = "${" <> label <> "}"
@@ -0,0 +1,15 @@
+{-# LANGUAGE TemplateHaskell #-}
+
+module Static.Embedded where
+
+import Data.FileEmbed (embedDir, embedFile)
+import Data.ByteString (ByteString)
+
+indexHtml :: ByteString
+indexHtml = $(embedFile "apps/smp-server/static/index.html")
+
+linkHtml :: ByteString
+linkHtml = $(embedFile "apps/smp-server/static/link.html")
+
+mediaContent :: [(FilePath, ByteString)]
+mediaContent = $(embedDir "apps/smp-server/static/media/")
@@ -1,5 +1,5 @@
 name: simplexmq
-version: 5.8.0.6
+version: 5.8.0.10
 synopsis: SimpleXMQ message broker
 description: |
  This package includes <./docs/Simplex-Messaging-Server.html server>,
@@ -22,6 +22,8 @@ extra-source-files:
  - CHANGELOG.md
  - cbits/sha512.h
  - cbits/sntrup761.h
+  - apps/smp-server/static/*.html
+  - apps/smp-server/static/media/*

 dependencies:
  - aeson == 2.2.*
@@ -85,6 +87,9 @@ flags:
    manual: True
    default: True

+# cpp-options:
+#   - -Dslow_servers
+
 when:
  - condition: flag(swift)
    cpp-options:
@@ -110,10 +115,16 @@ library:

 executables:
  smp-server:
-    source-dirs: apps/smp-server
+    source-dirs:
+    - apps/smp-server
+    - apps/smp-server/web
    main: Main.hs
    dependencies:
+      - file-embed
      - simplexmq
+      - wai-app-static
+      - warp
+      - warp-tls
    ghc-options:
      - -threaded
      - -rtsopts
@@ -52,8 +52,8 @@ source_code: https://github.com/simplex-chat/simplexmq

 # We should split this document to the model one, where specific parameters will be external to the document,
 # and specific to us, so that relay operators can adopt our recommended policy and publish any amendments separately.
-conditions: https://github.com/simplex-chat/simplex-chat/blob/_archived-ep/ios-file-provider/PRIVACY.md
-# conditions_amendments: link
+usage_conditions: https://github.com/simplex-chat/simplex-chat/blob/_archived-ep/ios-file-provider/PRIVACY.md
+# condition_amendments: link

 server_country: SE
 operator: SimpleX Chat Ltd.
@@ -62,9 +62,9 @@ website: https://simplex.chat
 admin_simplex: administrative SimpleX address
 admin_email: chat@simplex.chat
 admin_pgp: PGP key
-feedback_simplex: SimpleX address for feedback, comments and complaints
-feedback_email: complaints@simplex.chat
-feedback_pgp: PGP key
+complaints_simplex: SimpleX address for feedback, comments and complaints
+complaints_email: complaints@simplex.chat
+complaints_pgp: PGP key
 hosting: Linode / Akamai Inc.
 hosting_country: US
 ```
@@ -89,20 +89,27 @@ data ServerHandshake = ServerHandshake
  }

 data ServerInformation = ServerInformation
-  { -- below is based on the existing server configuration
-    persistence :: SMPServerPersistenceMode,
+  { config :: ServerPublicConfig,
+    info :: ServerPublicInfo
+  }
+
+-- based on server configuration
+data ServerPublicConfig = ServerPublicConfig
+  { persistence :: SMPServerPersistenceMode,
    messageExpiration :: Int,
    statsEnabled :: Bool,
    newQueuesAllowed :: Bool,
-    basicAuthEnabled :: Bool, -- server is private if enabled
-    -- below is based on INFORMATION section of INI file
-    sourceCode :: Text, -- note that this property is not optional, in line with AGPLv3 license
-    -- all below properties are optional, except entity name MUST be present if any entity country is present
+    basicAuthEnabled :: Bool -- server is private if enabled
+  }
+
+-- based on INFORMATION section of INI file
+data ServerPublicInfo = ServerPublicInfo
+  { sourceCode :: Text, -- note that this property is not optional, in line with AGPLv3 license
    conditions :: Maybe ServerConditions,
    operator :: Maybe Entity,
    website :: Maybe Text,
-    admin :: Maybe ServerContactAddress,
-    feedback :: Maybe ServerContactAddress,
+    adminContacts :: Maybe ServerContactAddress,
+    complaintsContacts :: Maybe ServerContactAddress,
    hosting :: Maybe Entity,
    serverCountry :: Maybe Text
  }
@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack

 name:           simplexmq
-version:        5.8.0.6
+version:        5.8.0.10
 synopsis:       SimpleXMQ message broker
 description:    This package includes <./docs/Simplex-Messaging-Server.html server>,
                <./docs/Simplex-Messaging-Client.html client> and
@@ -28,6 +28,33 @@ extra-source-files:
    CHANGELOG.md
    cbits/sha512.h
    cbits/sntrup761.h
+    apps/smp-server/static/index.html
+    apps/smp-server/static/link.html
+    apps/smp-server/static/media/apk_icon.png
+    apps/smp-server/static/media/apple_store.svg
+    apps/smp-server/static/media/contact.js
+    apps/smp-server/static/media/contact_page_mobile.png
+    apps/smp-server/static/media/f_droid.svg
+    apps/smp-server/static/media/favicon.ico
+    apps/smp-server/static/media/GilroyBold.woff2
+    apps/smp-server/static/media/GilroyLight.woff2
+    apps/smp-server/static/media/GilroyMedium.woff2
+    apps/smp-server/static/media/GilroyRegular.woff2
+    apps/smp-server/static/media/GilroyRegularItalic.woff2
+    apps/smp-server/static/media/google_play.svg
+    apps/smp-server/static/media/logo-dark.png
+    apps/smp-server/static/media/logo-light.png
+    apps/smp-server/static/media/logo-symbol-dark.svg
+    apps/smp-server/static/media/logo-symbol-light.svg
+    apps/smp-server/static/media/moon.svg
+    apps/smp-server/static/media/qrcode.js
+    apps/smp-server/static/media/script.js
+    apps/smp-server/static/media/style.css
+    apps/smp-server/static/media/sun.svg
+    apps/smp-server/static/media/swiper-bundle.min.css
+    apps/smp-server/static/media/swiper-bundle.min.js
+    apps/smp-server/static/media/tailwind.css
+    apps/smp-server/static/media/testflight.png

 flag swift
  description: Enable swift JSON format
@@ -140,10 +167,12 @@ library
      Simplex.Messaging.Server.Control
      Simplex.Messaging.Server.Env.STM
      Simplex.Messaging.Server.Expiration
+      Simplex.Messaging.Server.Information
      Simplex.Messaging.Server.Main
      Simplex.Messaging.Server.MsgStore
      Simplex.Messaging.Server.MsgStore.STM
      Simplex.Messaging.Server.QueueStore
+      Simplex.Messaging.Server.QueueStore.QueueInfo
      Simplex.Messaging.Server.QueueStore.STM
      Simplex.Messaging.Server.Stats
      Simplex.Messaging.Server.StoreLog
@@ -401,9 +430,12 @@ executable smp-agent
 executable smp-server
  main-is: Main.hs
  other-modules:
+      Static
+      Static.Embedded
      Paths_simplexmq
  hs-source-dirs:
      apps/smp-server
+      apps/smp-server/web
  default-extensions:
      StrictData
  ghc-options: -Weverything -Wno-missing-exported-signatures -Wno-missing-import-lists -Wno-missed-specialisations -Wno-all-missed-specialisations -Wno-unsafe -Wno-safe -Wno-missing-local-signatures -Wno-missing-kind-signatures -Wno-missing-deriving-strategies -Wno-monomorphism-restriction -Wno-prepositive-qualified-module -Wno-unused-packages -Wno-implicit-prelude -Wno-missing-safe-haskell-mode -Wno-missing-export-lists -Wno-partial-fields -Wcompat -Werror=incomplete-record-updates -Werror=incomplete-patterns -Werror=incomplete-uni-patterns -Werror=missing-methods -Werror=tabs -Wredundant-constraints -Wincomplete-record-updates -Wunused-type-patterns -O2 -threaded -rtsopts
@@ -428,6 +460,7 @@ executable smp-server
    , data-default ==0.7.*
    , direct-sqlcipher ==2.3.*
    , directory ==1.3.*
+    , file-embed
    , filepath ==1.4.*
    , hourglass ==0.2.*
    , http-types ==0.12.*
@@ -456,6 +489,9 @@ executable smp-server
    , transformers ==0.6.*
    , unliftio ==0.2.*
    , unliftio-core ==0.2.*
+    , wai-app-static
+    , warp
+    , warp-tls
    , websockets ==0.12.*
    , yaml ==0.11.*
    , zstd ==0.1.3.*
@@ -52,7 +52,7 @@ import Simplex.Messaging.Protocol
    RecipientId,
    SenderId,
  )
-import Simplex.Messaging.Transport (ALPN, THandleAuth (..), THandleParams (..), TransportError (..), TransportPeer (..), supportedParameters)
+import Simplex.Messaging.Transport (ALPN, HandshakeError (..), THandleAuth (..), THandleParams (..), TransportError (..), TransportPeer (..), supportedParameters)
 import Simplex.Messaging.Transport.Client (TransportClientConfig, TransportHost, alpn)
 import Simplex.Messaging.Transport.HTTP2
 import Simplex.Messaging.Transport.HTTP2.Client
@@ -116,8 +116,7 @@ getXFTPClient transportSession@(_, srv, _) config@XFTPClientConfig {clientALPN,
  logDebug $ "Client negotiated handshake protocol: " <> tshow sessionALPN
  thParams@THandleParams {thVersion} <- case sessionALPN of
    Just "xftp/1" -> xftpClientHandshakeV1 serverVRange keyHash http2Client thParams0
-    Nothing -> pure thParams0
-    _ -> throwError $ PCETransportError TEVersion
+    _ -> pure thParams0
  logDebug $ "Client negotiated protocol: " <> tshow thVersion
  let c = XFTPClient {http2Client, thParams, transportSession, config}
  atomically $ writeTVar clientVar $ Just c
@@ -135,15 +134,15 @@ xftpClientHandshakeV1 serverVRange keyHash@(C.KeyHash kh) c@HTTP2Client {session
    getServerHandshake = do
      let helloReq = H.requestNoBody "POST" "/" []
      HTTP2Response {respBody = HTTP2Body {bodyHead = shsBody}} <-
-        liftError' (const $ PCEResponseError HANDSHAKE) $ sendRequest c helloReq Nothing
-      liftHS . smpDecode =<< liftHS (C.unPad shsBody)
+        liftError' xftpClientError $ sendRequest c helloReq Nothing
+      liftTransportErr (TEHandshake PARSE) . smpDecode =<< liftTransportErr TEBadBlock (C.unPad shsBody)
    processServerHandshake :: XFTPServerHandshake -> ExceptT XFTPClientError IO (VersionRangeXFTP, C.PublicKeyX25519)
    processServerHandshake XFTPServerHandshake {xftpVersionRange, sessionId = serverSessId, authPubKey = serverAuth} = do
-      unless (sessionId == serverSessId) $ throwError $ PCEResponseError SESSION
+      unless (sessionId == serverSessId) $ throwError $ PCETransportError TEBadSession
      case xftpVersionRange `compatibleVRange` serverVRange of
        Nothing -> throwError $ PCETransportError TEVersion
        Just (Compatible vr) ->
-          fmap (vr,) . liftHS $ do
+          fmap (vr,) . liftTransportErr (TEHandshake BAD_AUTH) $ do
            let (X.CertificateChain cert, exact) = serverAuth
            case cert of
              [_leaf, ca] | XV.Fingerprint kh == XV.getFingerprint ca X.HashSHA256 -> pure ()
@@ -152,11 +151,11 @@ xftpClientHandshakeV1 serverVRange keyHash@(C.KeyHash kh) c@HTTP2Client {session
            C.x509ToPublic (pubKey, []) >>= C.pubKey
    sendClientHandshake :: XFTPClientHandshake -> ExceptT XFTPClientError IO ()
    sendClientHandshake chs = do
-      chs' <- liftHS $ C.pad (smpEncode chs) xftpBlockSize
+      chs' <- liftTransportErr TELargeMsg $ C.pad (smpEncode chs) xftpBlockSize
      let chsReq = H.requestBuilder "POST" "/" [] $ byteString chs'
-      HTTP2Response {respBody = HTTP2Body {bodyHead}} <- liftError' (const $ PCEResponseError HANDSHAKE) $ sendRequest c chsReq Nothing
-      unless (B.null bodyHead) $ throwError $ PCEResponseError HANDSHAKE
-    liftHS = liftEitherWith (const $ PCEResponseError HANDSHAKE)
+      HTTP2Response {respBody = HTTP2Body {bodyHead}} <- liftError' xftpClientError $ sendRequest c chsReq Nothing
+      unless (B.null bodyHead) $ throwError $ PCETransportError TEBadBlock
+    liftTransportErr e = liftEitherWith (const $ PCETransportError e)

 closeXFTPClient :: XFTPClient -> IO ()
 closeXFTPClient XFTPClient {http2Client} = closeHTTP2Client http2Client
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE FlexibleContexts #-}
@@ -67,6 +68,9 @@ import Simplex.Messaging.Version
 import System.Exit (exitFailure)
 import System.FilePath ((</>))
 import System.IO (hPrint, hPutStrLn, universalNewlineMode)
+#ifdef slow_servers
+import System.Random (getStdRandom, randomR)
+#endif
 import UnliftIO
 import UnliftIO.Concurrent (threadDelay)
 import UnliftIO.Directory (doesFileExist, removeFile, renameFile)
@@ -138,6 +142,9 @@ xftpServer cfg@XFTPServerConfig {xftpPort, transportConfig, inactiveClientExpira
          let authPubKey = (chain, C.signX509 serverSignKey $ C.publicToX509 k)
          let hs = XFTPServerHandshake {xftpVersionRange = xftpServerVRange, sessionId, authPubKey}
          shs <- encodeXftp hs
+#ifdef slow_servers
+          lift randomDelay
+#endif
          liftIO . sendResponse $ H.responseBuilder N.ok200 [] shs
          pure Nothing
        processClientHandshake pk = do
@@ -151,6 +158,9 @@ xftpServer cfg@XFTPServerConfig {xftpPort, transportConfig, inactiveClientExpira
              let auth = THAuthServer {serverPrivKey = pk, sessSecret' = Nothing}
                  thParams = thParams0 {thAuth = Just auth, thVersion = v, thServerVRange = vr}
              atomically $ TM.insert sessionId (HandshakeAccepted thParams) sessions
+#ifdef slow_servers
+              lift randomDelay
+#endif
              liftIO . sendResponse $ H.responseNoBody N.ok200 []
              pure Nothing
            Nothing -> throwError HANDSHAKE
@@ -315,6 +325,9 @@ processRequest XFTPTransportRequest {thParams, reqBody = body@HTTP2Body {bodyHea
  where
    sendXFTPResponse (corrId, fId, resp) serverFile_ = do
      let t_ = xftpEncodeTransmission thParams (corrId, fId, resp)
+#ifdef slow_servers
+      randomDelay
+#endif
      liftIO $ sendResponse $ H.responseStreaming N.ok200 [] $ streamBody t_
      where
        streamBody t_ send done = do
@@ -329,6 +342,15 @@ processRequest XFTPTransportRequest {thParams, reqBody = body@HTTP2Body {bodyHea
                withFile filePath ReadMode $ \h -> sendEncFile h send sbState fileSize
          done

+#ifdef slow_servers
+randomDelay :: M ()
+randomDelay = do
+  d <- asks $ responseDelay . config
+  when (d > 0) $ do
+    pc <- getStdRandom (randomR (-200, 200))
+    threadDelay $ (d * (1000 + pc)) `div` 1000
+#endif
+
 data VerificationResult = VRVerified XFTPRequest | VRFailed

 verifyXFTPTransmission :: Maybe (THandleAuth 'TServer, C.CbNonce) -> Maybe TransmissionAuth -> ByteString -> XFTPFileId -> FileCmd -> M VerificationResult
@@ -457,7 +479,7 @@ processXFTPRequest HTTP2Body {bodyPart} = \case
                pure $ FRErr e
          receiveChunk spec = do
            t <- asks $ fileTimeout . config
-            liftIO $ fromMaybe (Left TIMEOUT) <$> timeout t (runExceptT (receiveFile getBody spec) `catchAll_` pure (Left FILE_IO))
+            liftIO $ fromMaybe (Left TIMEOUT) <$> timeout t (runExceptT $ receiveFile getBody spec)
    sendServerFile :: FileRec -> RcvPublicDhKey -> M (FileResponse, Maybe ServerFile)
    sendServerFile FileRec {senderId, filePath, fileInfo = FileInfo {size}} rDhKey = do
      readTVarIO filePath >>= \case
@@ -69,7 +69,8 @@ data XFTPServerConfig = XFTPServerConfig
    logStatsStartTime :: Int64,
    serverStatsLogFile :: FilePath,
    serverStatsBackupFile :: Maybe FilePath,
-    transportConfig :: TransportServerConfig
+    transportConfig :: TransportServerConfig,
+    responseDelay :: Int
  }

 defaultInactiveClientExpiration :: ExpirationConfig
@@ -7,13 +7,13 @@

 module Simplex.FileTransfer.Server.Main where

-import qualified Data.ByteString.Char8 as B
 import Data.Either (fromRight)
 import Data.Functor (($>))
 import Data.Ini (lookupValue, readIniFile)
 import Data.Int (Int64)
 import Data.Maybe (fromMaybe)
 import qualified Data.Text as T
+import qualified Data.Text.IO as T
 import Network.Socket (HostName)
 import Options.Applicative
 import Simplex.FileTransfer.Chunks
@@ -29,6 +29,7 @@ import Simplex.Messaging.Server.Expiration
 import Simplex.Messaging.Transport (simplexMQVersion)
 import Simplex.Messaging.Transport.Client (TransportHost (..))
 import Simplex.Messaging.Transport.Server (TransportServerConfig (..), defaultTransportServerConfig)
+import Simplex.Messaging.Util (safeDecodeUtf8, tshow)
 import System.Directory (createDirectoryIfMissing, doesFileExist)
 import System.FilePath (combine)
 import System.IO (BufferMode (..), hSetBuffering, stderr, stdout)
@@ -69,7 +70,7 @@ xftpServerCLI cfgPath logPath = do
      fp <- createServerX509 cfgPath x509cfg
      let host = fromMaybe (if ip == "127.0.0.1" then "<hostnames>" else ip) fqdn
          srv = ProtoServerWithAuth (XFTPServer [THDomainName host] "" (C.KeyHash fp)) Nothing
-      writeFile iniFile $ iniFileContent host
+      T.writeFile iniFile $ iniFileContent host
      putStrLn $ "Server initialized, you can modify configuration in " <> iniFile <> ".\nRun `" <> executableName <> " start` to start server."
      warnCAPrivateKeyFile cfgPath x509cfg
      printServiceInfo serverVersion srv
@@ -83,7 +84,7 @@ xftpServerCLI cfgPath logPath = do
          \# Log is compacted on start (deleted objects are removed).\n"
            <> ("enable: " <> onOff enableStoreLog <> "\n\n")
            <> "# Expire files after the specified number of hours.\n"
-            <> ("expire_files_hours: " <> show defFileExpirationHours <> "\n\n")
+            <> ("expire_files_hours: " <> tshow defFileExpirationHours <> "\n\n")
            <> "log_stats: off\n\
               \\n\
               \[AUTH]\n\
@@ -102,20 +103,20 @@ xftpServerCLI cfgPath logPath = do
               \# control_port_user_password:\n\
               \[TRANSPORT]\n\
               \# host is only used to print server address on start\n"
-            <> ("host: " <> host <> "\n")
-            <> ("port: " <> defaultServerPort <> "\n")
+            <> ("host: " <> T.pack host <> "\n")
+            <> ("port: " <> T.pack defaultServerPort <> "\n")
            <> "log_tls_errors: off\n\
               \# control_port: 5226\n\
               \\n\
               \[FILES]\n"
-            <> ("path: " <> filesPath <> "\n")
-            <> ("storage_quota: " <> B.unpack (strEncode fileSizeQuota) <> "\n")
+            <> ("path: " <> T.pack filesPath <> "\n")
+            <> ("storage_quota: " <> safeDecodeUtf8 (strEncode fileSizeQuota) <> "\n")
            <> "\n\
               \[INACTIVE_CLIENTS]\n\
               \# TTL and interval to check inactive clients\n\
               \disconnect: off\n"
-            <> ("# ttl: " <> show (ttl defaultInactiveClientExpiration) <> "\n")
-            <> ("# check_interval: " <> show (checkInterval defaultInactiveClientExpiration) <> "\n")
+            <> ("# ttl: " <> tshow (ttl defaultInactiveClientExpiration) <> "\n")
+            <> ("# check_interval: " <> tshow (checkInterval defaultInactiveClientExpiration) <> "\n")
    runServer ini = do
      hSetBuffering stdout LineBuffering
      hSetBuffering stderr LineBuffering
@@ -165,7 +166,7 @@ xftpServerCLI cfgPath logPath = do
                  defaultFileExpiration
                    { ttl = 3600 * readIniDefault defFileExpirationHours "STORE_LOG" "expire_files_hours" ini
                    },
-              fileTimeout = 10 * 60 * 1000000, -- 10 mins to send 4mb chunk
+              fileTimeout = 5 * 60 * 1000000, -- 5 mins to send 4mb chunk
              inactiveClientExpiration =
                settingIsOn "INACTIVE_CLIENTS" "disconnect" ini
                  $> ExpirationConfig
@@ -184,7 +185,8 @@ xftpServerCLI cfgPath logPath = do
                defaultTransportServerConfig
                  { logTLSErrors = fromMaybe False $ iniOnOff "TRANSPORT" "log_tls_errors" ini,
                    alpn = Just supportedXFTPhandshakes
-                  }
+                  },
+              responseDelay = 0
            }

 data CliCommand
@@ -34,6 +34,7 @@ where

 import Control.Applicative ((<|>))
 import qualified Control.Exception as E
+import Control.Logger.Simple
 import Control.Monad
 import Control.Monad.Except
 import Control.Monad.IO.Class
@@ -46,8 +47,10 @@ import Data.ByteString.Builder (Builder, byteString)
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
 import qualified Data.ByteString.Lazy.Char8 as LB
+import Data.Functor (($>))
 import Data.Word (Word16, Word32)
 import qualified Data.X509 as X
+import Network.HTTP2.Client (HTTP2Error)
 import qualified Simplex.Messaging.Crypto as C
 import qualified Simplex.Messaging.Crypto.Lazy as LC
 import Simplex.Messaging.Encoding
@@ -56,7 +59,7 @@ import Simplex.Messaging.Parsers
 import Simplex.Messaging.Protocol (CommandError)
 import Simplex.Messaging.Transport (SessionId, THandle (..), THandleParams (..), TransportError (..), TransportPeer (..))
 import Simplex.Messaging.Transport.HTTP2.File
-import Simplex.Messaging.Util (bshow)
+import Simplex.Messaging.Util (bshow, tshow)
 import Simplex.Messaging.Version
 import Simplex.Messaging.Version.Internal
 import System.IO (Handle, IOMode (..), withFile)
@@ -145,9 +148,14 @@ sendEncFile h send = go
        go sbState' $ sz - fromIntegral (B.length ch)

 receiveFile :: (Int -> IO ByteString) -> XFTPRcvChunkSpec -> ExceptT XFTPErrorType IO ()
-receiveFile getBody = receiveFile_ receive
+receiveFile getBody chunk = ExceptT $ runExceptT (receiveFile_ receive chunk) `E.catches` handlers
  where
    receive h sz = hReceiveFile getBody h sz >>= \sz' -> pure $ if sz' == 0 then Right () else Left SIZE
+    handlers =
+      [ E.Handler $ \(e :: HTTP2Error) -> logWarn (err e) $> Left TIMEOUT,
+        E.Handler $ \(e :: E.SomeException) -> logError (err e) $> Left FILE_IO
+      ]
+    err e = "receiveFile error: " <> tshow e

 receiveEncFile :: (Int -> IO ByteString) -> LC.SbState -> XFTPRcvChunkSpec -> ExceptT XFTPErrorType IO ()
 receiveEncFile getBody = receiveFile_ . receive
@@ -213,7 +221,7 @@ data XFTPErrorType
    HAS_FILE
  | -- | file IO error
    FILE_IO
-  | -- | file sending timeout
+  | -- | file sending or receiving timeout
    TIMEOUT
  | -- | bad redirect data
    REDIRECT {redirectError :: String}
@@ -70,6 +70,7 @@ module Simplex.Messaging.Agent
    sendMessages,
    sendMessagesB,
    ackMessage,
+    getConnectionQueueInfo,
    switchConnection,
    abortConnectionSwitch,
    synchronizeRatchet,
@@ -82,8 +83,6 @@ module Simplex.Messaging.Agent
    testProtocolServer,
    setNtfServers,
    setNetworkConfig,
-    getNetworkConfig,
-    getNetworkConfig',
    setUserNetworkInfo,
    reconnectAllServers,
    registerNtfToken,
@@ -176,6 +175,7 @@ import Simplex.Messaging.Notifications.Types
 import Simplex.Messaging.Parsers (parse)
 import Simplex.Messaging.Protocol (BrokerMsg, Cmd (..), EntityId, ErrorType (AUTH), MsgBody, MsgFlags (..), NtfServer, ProtoServerWithAuth, ProtocolTypeI (..), SMPMsgMeta, SParty (..), SProtocolType (..), SndPublicAuthKey, SubscriptionMode (..), UserProtocol, VersionSMPC, XFTPServerWithAuth)
 import qualified Simplex.Messaging.Protocol as SMP
+import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.ServiceScheme (ServiceScheme (..))
 import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Transport (SMPVersion, THandleParams (sessionId))
@@ -371,6 +371,10 @@ ackMessage :: AgentClient -> ConnId -> AgentMsgId -> Maybe MsgReceiptInfo -> AE
 ackMessage c = withAgentEnv c .:. ackMessage' c
 {-# INLINE ackMessage #-}

+getConnectionQueueInfo :: AgentClient -> ConnId -> AE QueueInfo
+getConnectionQueueInfo c = withAgentEnv c . getConnectionQueueInfo' c
+{-# INLINE getConnectionQueueInfo #-}
+
 -- | Switch connection to the new receive queue
 switchConnection :: AgentClient -> ConnId -> AE ConnectionStats
 switchConnection c = withAgentEnv c . switchConnection' c
@@ -428,11 +432,6 @@ setNetworkConfig c@AgentClient {useNetworkConfig} cfg' = do
      else True <$ (writeTVar useNetworkConfig $! (slowNetworkConfig cfg', cfg'))
  when changed $ reconnectAllServers c

-- returns fast network config
-getNetworkConfig :: AgentClient -> IO NetworkConfig
-getNetworkConfig = getNetworkConfig'
-{-# INLINE getNetworkConfig #-}
-
 setUserNetworkInfo :: AgentClient -> UserNetworkInfo -> IO ()
 setUserNetworkInfo c@AgentClient {userNetworkInfo, userNetworkUpdated} ni = withAgentEnv' c $ do
  ts' <- liftIO getCurrentTime
@@ -1510,6 +1509,16 @@ ackMessage' c connId msgId rcptInfo_ = withConnLock c connId "ackMessage" $ do
            withStore' c $ \db -> deleteDeliveredSndMsg db connId $ InternalId sndMsgId
          _ -> pure ()

+getConnectionQueueInfo' :: AgentClient -> ConnId -> AM QueueInfo
+getConnectionQueueInfo' c connId = do
+  SomeConn _ conn <- withStore c (`getConn` connId)
+  case conn of
+    DuplexConnection _ (rq :| _) _ -> getQueueInfo c rq
+    RcvConnection _ rq -> getQueueInfo c rq
+    ContactConnection _ rq -> getQueueInfo c rq
+    SndConnection {} -> throwE $ CONN SIMPLEX
+    NewConnection _ -> throwE $ CMD PROHIBITED "getConnectionQueueInfo': NewConnection"
+
 switchConnection' :: AgentClient -> ConnId -> AM ConnectionStats
 switchConnection' c connId =
  withConnLock c connId "switchConnection" $
@@ -56,6 +56,7 @@ module Simplex.Messaging.Agent.Client
    disableQueueNotifications,
    disableQueuesNtfs,
    sendAgentMessage,
+    getQueueInfo,
    agentNtfRegisterToken,
    agentNtfVerifyToken,
    agentNtfCheckToken,
@@ -137,6 +138,8 @@ module Simplex.Messaging.Agent.Client
    getAgentWorkersDetails,
    AgentWorkersSummary (..),
    getAgentWorkersSummary,
+    AgentQueuesInfo (..),
+    getAgentQueuesInfo,
    SMPTransportSession,
    NtfTransportSession,
    XFTPTransportSession,
@@ -185,6 +188,7 @@ import qualified Simplex.FileTransfer.Client as X
 import Simplex.FileTransfer.Description (ChunkReplicaId (..), FileDigest (..), kb)
 import Simplex.FileTransfer.Protocol (FileInfo (..), FileResponse)
 import Simplex.FileTransfer.Transport (XFTPErrorType (DIGEST), XFTPRcvChunkSpec (..), XFTPVersion)
+import qualified Simplex.FileTransfer.Transport as XFTP
 import Simplex.FileTransfer.Types (DeletedSndChunkReplica (..), NewSndChunkReplica (..), RcvFileChunkReplica (..), SndFileChunk (..), SndFileChunkReplica (..))
 import Simplex.FileTransfer.Util (uniqueCombine)
 import Simplex.Messaging.Agent.Env.SQLite
@@ -204,7 +208,7 @@ import Simplex.Messaging.Notifications.Client
 import Simplex.Messaging.Notifications.Protocol
 import Simplex.Messaging.Notifications.Transport (NTFVersion)
 import Simplex.Messaging.Notifications.Types
-import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON, parse)
+import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON, parse, sumTypeJSON)
 import Simplex.Messaging.Protocol
  ( AProtocolType (..),
    BrokerMsg,
@@ -236,6 +240,7 @@ import Simplex.Messaging.Protocol
    sameSrvAddr',
  )
 import qualified Simplex.Messaging.Protocol as SMP
+import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.Session
 import Simplex.Messaging.TMap (TMap)
 import qualified Simplex.Messaging.TMap as TM
@@ -582,7 +587,8 @@ instance ProtocolServerClient XFTPVersion XFTPErrorType FileResponse where
 getSMPServerClient :: AgentClient -> SMPTransportSession -> AM SMPConnectedClient
 getSMPServerClient c@AgentClient {active, smpClients, workerSeq} tSess = do
  unlessM (readTVarIO active) . throwError $ INACTIVE
-  atomically (getSessVar workerSeq tSess smpClients)
+  ts <- liftIO getCurrentTime
+  atomically (getSessVar workerSeq tSess smpClients ts)
    >>= either newClient (waitForProtocolClient c tSess smpClients)
  where
    newClient v = do
@@ -593,28 +599,30 @@ getSMPProxyClient :: AgentClient -> SMPTransportSession -> AM (SMPConnectedClien
 getSMPProxyClient c@AgentClient {active, smpClients, smpProxiedRelays, workerSeq} destSess@(userId, destSrv, qId) = do
  unlessM (readTVarIO active) . throwError $ INACTIVE
  proxySrv <- getNextServer c userId [destSrv]
-  atomically (getClientVar proxySrv) >>= \(tSess, auth, v) ->
-    either (newProxyClient tSess auth) (waitForProxyClient tSess auth) v
+  ts <- liftIO getCurrentTime
+  atomically (getClientVar proxySrv ts) >>= \(tSess, auth, v) ->
+    either (newProxyClient tSess auth ts) (waitForProxyClient tSess auth) v
  where
-    getClientVar :: SMPServerWithAuth -> STM (SMPTransportSession, Maybe SMP.BasicAuth, Either SMPClientVar SMPClientVar)
-    getClientVar proxySrv = do
+    getClientVar :: SMPServerWithAuth -> UTCTime -> STM (SMPTransportSession, Maybe SMP.BasicAuth, Either SMPClientVar SMPClientVar)
+    getClientVar proxySrv ts = do
      ProtoServerWithAuth srv auth <- TM.lookup destSess smpProxiedRelays >>= maybe (TM.insert destSess proxySrv smpProxiedRelays $> proxySrv) pure
      let tSess = (userId, srv, qId)
-      (tSess,auth,) <$> getSessVar workerSeq tSess smpClients
-    newProxyClient :: SMPTransportSession -> Maybe SMP.BasicAuth -> SMPClientVar -> AM (SMPConnectedClient, Either AgentErrorType ProxiedRelay)
-    newProxyClient tSess auth v = do
+      (tSess,auth,) <$> getSessVar workerSeq tSess smpClients ts
+    newProxyClient :: SMPTransportSession -> Maybe SMP.BasicAuth -> UTCTime -> SMPClientVar -> AM (SMPConnectedClient, Either AgentErrorType ProxiedRelay)
+    newProxyClient tSess auth ts v = do
      (prs, rv) <- atomically $ do
        prs <- TM.empty
        -- we do not need to check if it is a new proxied relay session,
        -- as the client is just created and there are no sessions yet
-        (prs,) . either id id <$> getSessVar workerSeq destSrv prs
+        (prs,) . either id id <$> getSessVar workerSeq destSrv prs ts
      clnt <- smpConnectClient c tSess prs v
      (clnt,) <$> newProxiedRelay clnt auth rv
    waitForProxyClient :: SMPTransportSession -> Maybe SMP.BasicAuth -> SMPClientVar -> AM (SMPConnectedClient, Either AgentErrorType ProxiedRelay)
    waitForProxyClient tSess auth v = do
      clnt@(SMPConnectedClient _ prs) <- waitForProtocolClient c tSess smpClients v
+      ts <- liftIO getCurrentTime
      sess <-
-        atomically (getSessVar workerSeq destSrv prs)
+        atomically (getSessVar workerSeq destSrv prs ts)
          >>= either (newProxiedRelay clnt auth) (waitForProxiedRelay tSess)
      pure (clnt, sess)
    newProxiedRelay :: SMPConnectedClient -> Maybe SMP.BasicAuth -> ProxiedRelayVar -> AM (Either AgentErrorType ProxiedRelay)
@@ -688,14 +696,15 @@ smpClientDisconnected c@AgentClient {active, smpClients, smpProxiedRelays} tSess
    notifySub connId cmd = atomically $ writeTBQueue (subQ c) ("", connId, APC (sAEntity @e) cmd)

 resubscribeSMPSession :: AgentClient -> SMPTransportSession -> AM' ()
-resubscribeSMPSession c@AgentClient {smpSubWorkers, workerSeq} tSess =
-  atomically getWorkerVar >>= mapM_ (either newSubWorker (\_ -> pure ()))
+resubscribeSMPSession c@AgentClient {smpSubWorkers, workerSeq} tSess = do
+  ts <- liftIO getCurrentTime
+  atomically (getWorkerVar ts) >>= mapM_ (either newSubWorker (\_ -> pure ()))
  where
-    getWorkerVar =
+    getWorkerVar ts =
      ifM
        (null <$> getPending)
        (pure Nothing) -- prevent race with cleanup and adding pending queues in another call
-        (Just <$> getSessVar workerSeq tSess smpSubWorkers)
+        (Just <$> getSessVar workerSeq tSess smpSubWorkers ts)
    newSubWorker v = do
      a <- async $ void (E.tryAny runSubWorker) >> atomically (cleanup v)
      atomically $ putTMVar (sessionVar v) a
@@ -740,7 +749,8 @@ reconnectSMPClient c tSess@(_, srv, _) qs = handleNotify $ do
 getNtfServerClient :: AgentClient -> NtfTransportSession -> AM NtfClient
 getNtfServerClient c@AgentClient {active, ntfClients, workerSeq} tSess@(userId, srv, _) = do
  unlessM (readTVarIO active) . throwError $ INACTIVE
-  atomically (getSessVar workerSeq tSess ntfClients)
+  ts <- liftIO getCurrentTime
+  atomically (getSessVar workerSeq tSess ntfClients ts)
    >>= either
      (newProtocolClient c tSess ntfClients connectClient)
      (waitForProtocolClient c tSess ntfClients)
@@ -763,7 +773,8 @@ getNtfServerClient c@AgentClient {active, ntfClients, workerSeq} tSess@(userId,
 getXFTPServerClient :: AgentClient -> XFTPTransportSession -> AM XFTPClient
 getXFTPServerClient c@AgentClient {active, xftpClients, workerSeq} tSess@(userId, srv, _) = do
  unlessM (readTVarIO active) . throwError $ INACTIVE
-  atomically (getSessVar workerSeq tSess xftpClients)
+  ts <- liftIO getCurrentTime
+  atomically (getSessVar workerSeq tSess xftpClients ts)
    >>= either
      (newProtocolClient c tSess xftpClients connectClient)
      (waitForProtocolClient c tSess xftpClients)
@@ -1039,17 +1050,35 @@ sendOrProxySMPMessage c userId destSrv cmdStr spKey_ senderId msgFlags msg = do
        SPFAllowProtected -> ipAddressProtected cfg destSrv
        SPFProhibit -> False
    unknownServer = maybe True (all ((destSrv /=) . protoServer)) <$> TM.lookup userId (userServers c)
-    sendViaProxy destSess = do
+    sendViaProxy destSess@(_, _, qId) = do
      r <- tryAgentError . withProxySession c destSess senderId ("PFWD " <> cmdStr) $ \(SMPConnectedClient smp _, proxySess) -> do
        liftClient SMP (clientServer smp) (proxySMPMessage smp proxySess spKey_ senderId msgFlags msg) >>= \case
          Right () -> pure . Just $ protocolClientServer' smp
-          Left proxyErr ->
+          Left proxyErr -> do
+            case proxyErr of
+              (ProxyProtocolError (SMP.PROXY SMP.NO_SESSION)) -> atomically deleteRelaySession
+              _ -> pure ()
            throwE
              PROXY
                { proxyServer = protocolClientServer smp,
                  relayServer = B.unpack $ strEncode destSrv,
                  proxyErr
                }
+            where
+              -- checks that the current proxied relay session is the same one that was used to send the message and removes it
+              deleteRelaySession =
+                ( TM.lookup destSess (smpProxiedRelays c)
+                    $>>= \(ProtoServerWithAuth srv _) -> tryReadSessVar (userId, srv, qId) (smpClients c)
+                )
+                  >>= \case
+                    Just (Right (SMPConnectedClient smp' prs))
+                      | sameClient smp' ->
+                          tryReadSessVar destSrv prs >>= \case
+                            Just (Right proxySess') | sameProxiedRelay proxySess' -> TM.delete destSrv prs
+                            _ -> pure ()
+                    _ -> pure ()
+              sameClient smp' = sessionId (thParams smp) == sessionId (thParams smp')
+              sameProxiedRelay proxySess' = prSessionId proxySess == prSessionId proxySess'
      case r of
        Right r' -> pure r'
        Left e
@@ -1287,7 +1316,9 @@ temporaryAgentError :: AgentErrorType -> Bool
 temporaryAgentError = \case
  BROKER _ e -> tempBrokerError e
  SMP _ (SMP.PROXY (SMP.BROKER e)) -> tempBrokerError e
+  XFTP _ XFTP.TIMEOUT -> True
  PROXY _ _ (ProxyProtocolError (SMP.PROXY (SMP.BROKER e))) -> tempBrokerError e
+  PROXY _ _ (ProxyProtocolError (SMP.PROXY SMP.NO_SESSION)) -> True
  INACTIVE -> True
  _ -> False
  where
@@ -1550,6 +1581,11 @@ sendAgentMessage c sq@SndQueue {userId, server, sndId, sndPrivateKey} msgFlags a
  msg <- agentCbEncrypt sq Nothing $ smpEncode clientMsg
  sendOrProxySMPMessage c userId server "<MSG>" (Just sndPrivateKey) sndId msgFlags msg

+getQueueInfo :: AgentClient -> RcvQueue -> AM QueueInfo
+getQueueInfo c rq@RcvQueue {rcvId, rcvPrivateKey} =
+  withSMPClient c rq "QUE" $ \smp ->
+    getSMPQueueInfo smp rcvPrivateKey rcvId
+
 agentNtfRegisterToken :: AgentClient -> NtfToken -> NtfPublicAuthKey -> C.PublicKeyX25519 -> AM (NtfTokenId, C.PublicKeyX25519)
 agentNtfRegisterToken c NtfToken {deviceToken, ntfServer, ntfPrivKey} ntfPubKey pubDhKey =
  withClient c (0, ntfServer, Nothing) "TNEW" $ \ntf -> ntfRegisterToken ntf ntfPrivKey (NewNtfTkn deviceToken ntfPubKey pubDhKey)
@@ -2023,6 +2059,39 @@ getAgentWorkersSummary AgentClient {smpClients, ntfClients, xftpClients, smpDeli
            (pure WorkersSummary {numActive, numIdle = numIdle + 1, totalRestarts = totalRestarts + restartCount})
            (pure WorkersSummary {numActive = numActive + 1, numIdle, totalRestarts = totalRestarts + restartCount})

+data AgentQueuesInfo = AgentQueuesInfo
+  { msgQInfo :: TBQueueInfo,
+    subQInfo :: TBQueueInfo,
+    smpClientsQueues :: Map Text (Int, UTCTime, ClientInfo)
+  }
+  deriving (Show)
+
+data ClientInfo
+  = ClientInfoQueues {sndQInfo :: TBQueueInfo, rcvQInfo :: TBQueueInfo}
+  | ClientInfoError {clientError :: (AgentErrorType, Maybe UTCTime)}
+  | ClientInfoConnecting
+  deriving (Show)
+
+getAgentQueuesInfo :: AgentClient -> IO AgentQueuesInfo
+getAgentQueuesInfo AgentClient {msgQ, subQ, smpClients} = do
+  msgQInfo <- atomically $ getTBQueueInfo msgQ
+  subQInfo <- atomically $ getTBQueueInfo subQ
+  smpClientsMap <- readTVarIO smpClients
+  let smpClientsMap' = M.mapKeys (decodeLatin1 . strEncode) smpClientsMap
+  smpClientsQueues <- mapM getClientQueuesInfo smpClientsMap'
+  pure AgentQueuesInfo {msgQInfo, subQInfo, smpClientsQueues}
+  where
+    getClientQueuesInfo :: SMPClientVar -> IO (Int, UTCTime, ClientInfo)
+    getClientQueuesInfo SessionVar {sessionVar, sessionVarId, sessionVarTs} = do
+      clientInfo <-
+        atomically (tryReadTMVar sessionVar) >>= \case
+          Just (Right c) -> do
+            (sndQInfo, rcvQInfo) <- getProtocolClientQueuesInfo $ protocolClient c
+            pure ClientInfoQueues {sndQInfo, rcvQInfo}
+          Just (Left e) -> pure $ ClientInfoError e
+          Nothing -> pure ClientInfoConnecting
+      pure (sessionVarId, sessionVarTs, clientInfo)
+
 $(J.deriveJSON defaultJSON ''AgentLocks)

 $(J.deriveJSON (enumJSON $ dropPrefix "TS") ''ProtocolTestStep)
@@ -2041,6 +2110,10 @@ $(J.deriveJSON defaultJSON {J.fieldLabelModifier = takeWhile (/= '_')} ''AgentWo

 $(J.deriveJSON defaultJSON ''AgentWorkersSummary)

+$(J.deriveJSON (sumTypeJSON $ dropPrefix "ClientInfo") ''ClientInfo)
+
+$(J.deriveJSON defaultJSON ''AgentQueuesInfo)
+
 $(J.deriveJSON (enumJSON $ dropPrefix "UN") ''UserNetworkType)

 $(J.deriveJSON defaultJSON ''UserNetworkInfo)
@@ -108,6 +108,7 @@ module Simplex.Messaging.Agent.Protocol
    CRClientData,
    ServiceScheme,
    simplexChat,
+    connReqUriP',
    AgentErrorType (..),
    CommandErrorType (..),
    ConnectionErrorType (..),
@@ -1161,7 +1162,7 @@ instance StrEncoding MsgReceipt where
    msgRcptStatus <- strP
    pure MsgReceipt {agentMsgId, msgRcptStatus}

-instance forall m. ConnectionModeI m => StrEncoding (ConnectionRequestUri m) where
+instance ConnectionModeI m => StrEncoding (ConnectionRequestUri m) where
  strEncode = \case
    CRInvitationUri crData e2eParams -> crEncode "invitation" crData (Just e2eParams)
    CRContactUri crData -> crEncode "contact" crData Nothing
@@ -1175,34 +1176,40 @@ instance forall m. ConnectionModeI m => StrEncoding (ConnectionRequestUri m) whe
              [("v", strEncode crAgentVRange), ("smp", strEncode crSmpQueues)]
                <> maybe [] (\e2e -> [("e2e", strEncode e2e)]) e2eParams
                <> maybe [] (\cd -> [("data", encodeUtf8 cd)]) crClientData
-  strP = do
-    ACR m cr <- strP
-    case testEquality m $ sConnectionMode @m of
-      Just Refl -> pure cr
-      _ -> fail "bad connection request mode"
+  strP = connReqUriP' (Just SSSimplex)
+
+connReqUriP' :: forall m. ConnectionModeI m => Maybe ServiceScheme -> Parser (ConnectionRequestUri m)
+connReqUriP' overrideScheme = do
+  ACR m cr <- connReqUriP overrideScheme
+  case testEquality m $ sConnectionMode @m of
+    Just Refl -> pure cr
+    _ -> fail "bad connection request mode"

 instance StrEncoding AConnectionRequestUri where
  strEncode (ACR _ cr) = strEncode cr
-  strP = do
-    _crScheme :: ServiceScheme <- strP
-    crMode <- A.char '/' *> crModeP <* optional (A.char '/') <* "#/?"
-    query <- strP
-    aVRange <- queryParam "v" query
-    crSmpQueues <- queryParam "smp" query
-    let crClientData = safeDecodeUtf8 <$> queryParamStr "data" query
-    let crData = ConnReqUriData {crScheme = SSSimplex, crAgentVRange = aVRange, crSmpQueues, crClientData}
-    case crMode of
-      CMInvitation -> do
-        crE2eParams <- queryParam "e2e" query
-        pure . ACR SCMInvitation $ CRInvitationUri crData crE2eParams
-      -- contact links are adjusted to the minimum version supported by the agent
-      -- to preserve compatibility with the old links published online
-      CMContact -> pure . ACR SCMContact $ CRContactUri crData {crAgentVRange = adjustAgentVRange aVRange}
-    where
-      crModeP = "invitation" $> CMInvitation <|> "contact" $> CMContact
-      adjustAgentVRange vr =
-        let v = max duplexHandshakeSMPAgentVersion $ minVersion vr
-         in fromMaybe vr $ safeVersionRange v (max v $ maxVersion vr)
+  strP = connReqUriP (Just SSSimplex)
+
+connReqUriP :: Maybe ServiceScheme -> Parser AConnectionRequestUri
+connReqUriP overrideScheme = do
+  crScheme <- (`fromMaybe` overrideScheme) <$> strP
+  crMode <- A.char '/' *> crModeP <* optional (A.char '/') <* "#/?"
+  query <- strP
+  aVRange <- queryParam "v" query
+  crSmpQueues <- queryParam "smp" query
+  let crClientData = safeDecodeUtf8 <$> queryParamStr "data" query
+      crData = ConnReqUriData {crScheme, crAgentVRange = aVRange, crSmpQueues, crClientData}
+  case crMode of
+    CMInvitation -> do
+      crE2eParams <- queryParam "e2e" query
+      pure . ACR SCMInvitation $ CRInvitationUri crData crE2eParams
+    -- contact links are adjusted to the minimum version supported by the agent
+    -- to preserve compatibility with the old links published online
+    CMContact -> pure . ACR SCMContact $ CRContactUri crData {crAgentVRange = adjustAgentVRange aVRange}
+  where
+    crModeP = "invitation" $> CMInvitation <|> "contact" $> CMContact
+    adjustAgentVRange vr =
+      let v = max duplexHandshakeSMPAgentVersion $ minVersion vr
+        in fromMaybe vr $ safeVersionRange v (max v $ maxVersion vr)

 instance ConnectionModeI m => FromJSON (ConnectionRequestUri m) where
  parseJSON = strParseJSON "ConnectionRequestUri"
@@ -59,6 +59,7 @@ module Simplex.Messaging.Client
    connectSMPProxiedRelay,
    proxySMPMessage,
    forwardSMPMessage,
+    getSMPQueueInfo,
    sendProtocolCommand,

    -- * Supporting types and client configuration
@@ -90,6 +91,11 @@ module Simplex.Messaging.Client
    mkTransmission,
    authTransmission,
    smpClientStub,
+
+    -- * For debugging
+    TBQueueInfo (..),
+    getTBQueueInfo,
+    getProtocolClientQueuesInfo,
  )
 where

@@ -123,6 +129,7 @@ import Simplex.Messaging.Encoding
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON)
 import Simplex.Messaging.Protocol
+import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.TMap (TMap)
 import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Transport
@@ -284,6 +291,32 @@ data SMPProxyFallback
  | SPFProhibit -- prohibit direct connection to destination relay.
  deriving (Eq, Show)

+instance StrEncoding SMPProxyMode where
+  strEncode = \case
+    SPMAlways -> "always"
+    SPMUnknown -> "unknown"
+    SPMUnprotected -> "unprotected"
+    SPMNever -> "never"
+  strP =
+    A.takeTill (== ' ') >>= \case
+      "always" -> pure SPMAlways
+      "unknown" -> pure SPMUnknown
+      "unprotected" -> pure SPMUnprotected
+      "never" -> pure SPMNever
+      _ -> fail "Invalid SMP proxy mode"
+
+instance StrEncoding SMPProxyFallback where
+  strEncode = \case
+    SPFAllow -> "yes"
+    SPFAllowProtected -> "protected"
+    SPFProhibit -> "no"
+  strP =
+    A.takeTill (== ' ') >>= \case
+      "yes" -> pure SPFAllow
+      "protected" -> pure SPFAllowProtected
+      "no" -> pure SPFProhibit
+      _ -> fail "Invalid SMP proxy fallback mode"
+
 defaultNetworkConfig :: NetworkConfig
 defaultNetworkConfig =
  NetworkConfig
@@ -915,6 +948,12 @@ forwardSMPMessage c@ProtocolClient {thParams, client_ = PClient {clientCorrId =
      pure fwdResponse
    r -> throwE $ unexpectedResponse r

+getSMPQueueInfo :: SMPClient -> C.APrivateAuthKey -> QueueId -> ExceptT SMPClientError IO QueueInfo
+getSMPQueueInfo c pKey qId =
+  sendSMPCommand c (Just pKey) qId QUE >>= \case
+    INFO info -> pure info
+    r -> throwE $ unexpectedResponse r
+
 okSMPCommand :: PartyI p => Command p -> SMPClient -> C.APrivateAuthKey -> QueueId -> ExceptT SMPClientError IO ()
 okSMPCommand cmd c pKey qId =
  sendSMPCommand c (Just pKey) qId cmd >>= \case
@@ -1054,6 +1093,24 @@ authTransmission thAuth pKey_ nonce t = traverse authenticate pKey_
    sign :: forall a. (C.AlgorithmI a, C.SignatureAlgorithm a) => C.PrivateKey a -> Either TransportError TransmissionAuth
    sign pk = Right $ TASignature $ C.ASignature (C.sAlgorithm @a) (C.sign' pk t)

+data TBQueueInfo = TBQueueInfo
+  { qLength :: Int,
+    qFull :: Bool
+  }
+  deriving (Show)
+
+getTBQueueInfo :: TBQueue a -> STM TBQueueInfo
+getTBQueueInfo q = do
+  qLength <- fromIntegral <$> lengthTBQueue q
+  qFull <- isFullTBQueue q
+  pure TBQueueInfo {qLength, qFull}
+
+getProtocolClientQueuesInfo :: ProtocolClient v err msg -> IO (TBQueueInfo, TBQueueInfo)
+getProtocolClientQueuesInfo ProtocolClient {client_ = PClient {sndQ, rcvQ}} = do
+  sndQInfo <- atomically $ getTBQueueInfo sndQ
+  rcvQInfo <- atomically $ getTBQueueInfo rcvQ
+  pure (sndQInfo, rcvQInfo)
+
 $(J.deriveJSON (enumJSON $ dropPrefix "HM") ''HostMode)

 $(J.deriveJSON (enumJSON $ dropPrefix "SM") ''SocksMode)
@@ -1067,3 +1124,5 @@ $(J.deriveJSON (enumJSON $ dropPrefix "SPF") ''SMPProxyFallback)
 $(J.deriveJSON defaultJSON ''NetworkConfig)

 $(J.deriveJSON (enumJSON $ dropPrefix "Proxy") ''ProxyClientError)
+
+$(J.deriveJSON defaultJSON ''TBQueueInfo)
@@ -143,10 +143,11 @@ getSMPServerClient' ca srv = snd <$> getSMPServerClient'' ca srv
 {-# INLINE getSMPServerClient' #-}

 getSMPServerClient'' :: SMPClientAgent -> SMPServer -> ExceptT SMPClientError IO (OwnServer, SMPClient)
-getSMPServerClient'' ca@SMPClientAgent {agentCfg, smpClients, smpSessions, workerSeq} srv =
-  atomically getClientVar >>= either (ExceptT . newSMPClient) waitForSMPClient
+getSMPServerClient'' ca@SMPClientAgent {agentCfg, smpClients, smpSessions, workerSeq} srv = do
+  ts <- liftIO getCurrentTime
+  atomically (getClientVar ts) >>= either (ExceptT . newSMPClient) waitForSMPClient
  where
-    getClientVar :: STM (Either SMPClientVar SMPClientVar)
+    getClientVar :: UTCTime -> STM (Either SMPClientVar SMPClientVar)
    getClientVar = getSessVar workerSeq srv smpClients

    waitForSMPClient :: SMPClientVar -> ExceptT SMPClientError IO (OwnServer, SMPClient)
@@ -227,14 +228,15 @@ connectClient ca@SMPClientAgent {agentCfg, smpClients, smpSessions, msgQ, random

 -- | Spawn reconnect worker if needed
 reconnectClient :: SMPClientAgent -> SMPServer -> IO ()
-reconnectClient ca@SMPClientAgent {active, agentCfg, smpSubWorkers, workerSeq} srv =
-  whenM (readTVarIO active) $ atomically getWorkerVar >>= mapM_ (either newSubWorker (\_ -> pure ()))
+reconnectClient ca@SMPClientAgent {active, agentCfg, smpSubWorkers, workerSeq} srv = do
+  ts <- getCurrentTime
+  whenM (readTVarIO active) $ atomically (getWorkerVar ts) >>= mapM_ (either newSubWorker (\_ -> pure ()))
  where
-    getWorkerVar =
+    getWorkerVar ts =
      ifM
        (null <$> getPending)
        (pure Nothing) -- prevent race with cleanup and adding pending queues in another call
-        (Just <$> getSessVar workerSeq srv smpSubWorkers)
+        (Just <$> getSessVar workerSeq srv smpSubWorkers ts)
    newSubWorker :: SessionVar (Async ()) -> IO ()
    newSubWorker v = do
      a <- async $ void (E.tryAny runSubWorker) >> atomically (cleanup v)
@@ -11,6 +11,7 @@ import Data.Functor (($>))
 import Data.Ini (lookupValue, readIniFile)
 import Data.Maybe (fromMaybe)
 import qualified Data.Text as T
+import qualified Data.Text.IO as T
 import Network.Socket (HostName)
 import Options.Applicative
 import Simplex.Messaging.Client.Agent (SMPClientAgentConfig (..), defaultSMPClientAgentConfig)
@@ -25,6 +26,7 @@ import Simplex.Messaging.Server.Expiration
 import Simplex.Messaging.Transport (simplexMQVersion)
 import Simplex.Messaging.Transport.Client (TransportHost (..))
 import Simplex.Messaging.Transport.Server (TransportServerConfig (..), defaultTransportServerConfig)
+import Simplex.Messaging.Util (tshow)
 import System.Directory (createDirectoryIfMissing, doesFileExist)
 import System.FilePath (combine)
 import System.IO (BufferMode (..), hSetBuffering, stderr, stdout)
@@ -65,7 +67,7 @@ ntfServerCLI cfgPath logPath =
      fp <- createServerX509 cfgPath x509cfg
      let host = fromMaybe (if ip == "127.0.0.1" then "<hostnames>" else ip) fqdn
          srv = ProtoServerWithAuth (NtfServer [THDomainName host] "" (C.KeyHash fp)) Nothing
-      writeFile iniFile $ iniFileContent host
+      T.writeFile iniFile $ iniFileContent host
      putStrLn $ "Server initialized, you can modify configuration in " <> iniFile <> ".\nRun `" <> executableName <> " start` to start server."
      warnCAPrivateKeyFile cfgPath x509cfg
      printServiceInfo serverVersion srv
@@ -81,15 +83,15 @@ ntfServerCLI cfgPath logPath =
            <> "log_stats: off\n\n\
               \[TRANSPORT]\n\
               \# host is only used to print server address on start\n"
-            <> ("host: " <> host <> "\n")
-            <> ("port: " <> defaultServerPort <> "\n")
+            <> ("host: " <> T.pack host <> "\n")
+            <> ("port: " <> T.pack defaultServerPort <> "\n")
            <> "log_tls_errors: off\n"
            <> "websockets: off\n\n\
               \[INACTIVE_CLIENTS]\n\
               \# TTL and interval to check inactive clients\n\
               \disconnect: off\n"
-            <> ("# ttl: " <> show (ttl defaultInactiveClientExpiration) <> "\n")
-            <> ("# check_interval: " <> show (checkInterval defaultInactiveClientExpiration) <> "\n")
+            <> ("# ttl: " <> tshow (ttl defaultInactiveClientExpiration) <> "\n")
+            <> ("# check_interval: " <> tshow (checkInterval defaultInactiveClientExpiration) <> "\n")
    runServer ini = do
      hSetBuffering stdout LineBuffering
      hSetBuffering stderr LineBuffering
@@ -156,6 +156,7 @@ module Simplex.Messaging.Protocol
    sameSrvAddr,
    sameSrvAddr',
    noAuthSrv,
+    toMsgInfo,

    -- * TCP transport functions
    TransportBatch (..),
@@ -197,8 +198,8 @@ import qualified Data.List.NonEmpty as L
 import Data.Maybe (isJust, isNothing)
 import Data.String
 import qualified Data.Text as T
-import Data.Text.Encoding (encodeUtf8)
-import Data.Time.Clock.System (SystemTime (..))
+import Data.Text.Encoding (decodeLatin1, encodeUtf8)
+import Data.Time.Clock.System (SystemTime (..), systemToUTCTime)
 import Data.Type.Equality
 import Data.Word (Word16)
 import qualified Data.X509 as X
@@ -210,6 +211,7 @@ import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Encoding
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Parsers
+import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.ServiceScheme
 import Simplex.Messaging.Transport
 import Simplex.Messaging.Transport.Client (TransportHost, TransportHosts (..))
@@ -386,6 +388,7 @@ data Command (p :: Party) where
  ACK :: MsgId -> Command Recipient
  OFF :: Command Recipient
  DEL :: Command Recipient
+  QUE :: Command Recipient
  -- SMP sender commands
  -- SEND v1 has to be supported for encoding/decoding
  -- SEND :: MsgBody -> Command Sender
@@ -463,6 +466,7 @@ data BrokerMsg where
  RRES :: EncFwdResponse -> BrokerMsg -- relay to proxy
  PRES :: EncResponse -> BrokerMsg -- proxy to client
  END :: BrokerMsg
+  INFO :: QueueInfo -> BrokerMsg
  OK :: BrokerMsg
  ERR :: ErrorType -> BrokerMsg
  PONG :: BrokerMsg
@@ -505,6 +509,13 @@ data Message
        msgTs :: SystemTime
      }

+toMsgInfo :: Message -> MsgInfo
+toMsgInfo = \case
+  Message {msgId, msgTs} -> msgInfo msgId msgTs MTMessage
+  MessageQuota {msgId, msgTs} -> msgInfo msgId msgTs MTQuota
+  where
+    msgInfo msgId msgTs msgType = MsgInfo {msgId = decodeLatin1 $ B64.encode msgId, msgTs = systemToUTCTime msgTs, msgType}
+
 messageId :: Message -> MsgId
 messageId = \case
  Message {msgId} -> msgId
@@ -652,6 +663,7 @@ data CommandTag (p :: Party) where
  ACK_ :: CommandTag Recipient
  OFF_ :: CommandTag Recipient
  DEL_ :: CommandTag Recipient
+  QUE_ :: CommandTag Recipient
  SEND_ :: CommandTag Sender
  PING_ :: CommandTag Sender
  PRXY_ :: CommandTag ProxiedClient
@@ -674,6 +686,7 @@ data BrokerMsgTag
  | RRES_
  | PRES_
  | END_
+  | INFO_
  | OK_
  | ERR_
  | PONG_
@@ -698,6 +711,7 @@ instance PartyI p => Encoding (CommandTag p) where
    ACK_ -> "ACK"
    OFF_ -> "OFF"
    DEL_ -> "DEL"
+    QUE_ -> "QUE"
    SEND_ -> "SEND"
    PING_ -> "PING"
    PRXY_ -> "PRXY"
@@ -717,6 +731,7 @@ instance ProtocolMsgTag CmdTag where
    "ACK" -> Just $ CT SRecipient ACK_
    "OFF" -> Just $ CT SRecipient OFF_
    "DEL" -> Just $ CT SRecipient DEL_
+    "QUE" -> Just $ CT SRecipient QUE_
    "SEND" -> Just $ CT SSender SEND_
    "PING" -> Just $ CT SSender PING_
    "PRXY" -> Just $ CT SProxiedClient PRXY_
@@ -742,6 +757,7 @@ instance Encoding BrokerMsgTag where
    RRES_ -> "RRES"
    PRES_ -> "PRES"
    END_ -> "END"
+    INFO_ -> "INFO"
    OK_ -> "OK"
    ERR_ -> "ERR"
    PONG_ -> "PONG"
@@ -757,6 +773,7 @@ instance ProtocolMsgTag BrokerMsgTag where
    "RRES" -> Just RRES_
    "PRES" -> Just PRES_
    "END" -> Just END_
+    "INFO" -> Just INFO_
    "OK" -> Just OK_
    "ERR" -> Just ERR_
    "PONG" -> Just PONG_
@@ -1275,6 +1292,7 @@ instance PartyI p => ProtocolEncoding SMPVersion ErrorType (Command p) where
    ACK msgId -> e (ACK_, ' ', msgId)
    OFF -> e OFF_
    DEL -> e DEL_
+    QUE -> e QUE_
    SEND flags msg -> e (SEND_, ' ', flags, ' ', Tail msg)
    PING -> e PING_
    NSUB -> e NSUB_
@@ -1340,6 +1358,7 @@ instance ProtocolEncoding SMPVersion ErrorType Cmd where
        ACK_ -> ACK <$> _smpP
        OFF_ -> pure OFF
        DEL_ -> pure DEL
+        QUE_ -> pure QUE
    CT SSender tag ->
      Cmd SSender <$> case tag of
        SEND_ -> SEND <$> _smpP <*> (unTail <$> _smpP)
@@ -1368,6 +1387,7 @@ instance ProtocolEncoding SMPVersion ErrorType BrokerMsg where
    RRES (EncFwdResponse encBlock) -> e (RRES_, ' ', Tail encBlock)
    PRES (EncResponse encBlock) -> e (PRES_, ' ', Tail encBlock)
    END -> e END_
+    INFO info -> e (INFO_, ' ', info)
    OK -> e OK_
    ERR err -> e (ERR_, ' ', err)
    PONG -> e PONG_
@@ -1388,6 +1408,7 @@ instance ProtocolEncoding SMPVersion ErrorType BrokerMsg where
    RRES_ -> RRES <$> (EncFwdResponse . unTail <$> _smpP)
    PRES_ -> PRES <$> (EncResponse . unTail <$> _smpP)
    END_ -> pure END
+    INFO_ -> INFO <$> _smpP
    OK_ -> pure OK
    ERR_ -> ERR <$> _smpP
    PONG_ -> pure PONG
@@ -59,7 +59,7 @@ import Data.List (intercalate, mapAccumR)
 import Data.List.NonEmpty (NonEmpty (..))
 import qualified Data.List.NonEmpty as L
 import qualified Data.Map.Strict as M
-import Data.Maybe (catMaybes, fromMaybe, isNothing)
+import Data.Maybe (catMaybes, fromMaybe, isJust, isNothing)
 import qualified Data.Text as T
 import Data.Text.Encoding (decodeLatin1)
 import Data.Time.Clock (UTCTime (..), diffTimeToPicoseconds, getCurrentTime)
@@ -82,6 +82,7 @@ import Simplex.Messaging.Server.Expiration
 import Simplex.Messaging.Server.MsgStore
 import Simplex.Messaging.Server.MsgStore.STM
 import Simplex.Messaging.Server.QueueStore
+import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.Server.QueueStore.STM as QS
 import Simplex.Messaging.Server.Stats
 import Simplex.Messaging.Server.StoreLog
@@ -713,6 +714,7 @@ client thParams' clnt@Client {subscriptions, ntfSubscriptions, rcvQ, sndQ, sessi
                let own = isOwnServer a srv
                inc own pRequests
                inc own $ if temporaryClientError e then pErrorsConnect else pErrorsOther
+                logError $ "Error connecting: " <> decodeLatin1 (strEncode $ host srv) <> " " <> tshow e
                pure . ERR $ smpProxyError e
            where
              proxyResp smp =
@@ -791,6 +793,7 @@ client thParams' clnt@Client {subscriptions, ntfSubscriptions, rcvQ, sndQ, sessi
          NDEL -> deleteQueueNotifier_ st
          OFF -> suspendQueue_ st
          DEL -> delQueueAndMsgs st
+          QUE -> withQueue getQueueInfo
      where
        createQueue :: QueueStore -> RcvPublicAuthKey -> RcvPublicDhKey -> SubscriptionMode -> M (Transmission BrokerMsg)
        createQueue st recipientKey dhKey subMode = time "NEW" $ do
@@ -1162,6 +1165,26 @@ client thParams' clnt@Client {subscriptions, ntfSubscriptions, rcvQ, sndQ, sessi
            Right q -> updateDeletedStats q $> ok
            Left e -> pure $ err e

+        getQueueInfo :: QueueRec -> M (Transmission BrokerMsg)
+        getQueueInfo QueueRec {senderKey, notifier} = do
+          q@MsgQueue {size} <- getStoreMsgQueue "getQueueInfo" queueId
+          info <- atomically $ do
+            qiSub <- TM.lookup queueId subscriptions >>= mapM mkQSub
+            qiSize <- readTVar size
+            qiMsg <- toMsgInfo <$$> tryPeekMsg q
+            pure QueueInfo {qiSnd = isJust senderKey, qiNtf = isJust notifier, qiSub, qiSize, qiMsg}
+          pure (corrId, queueId, INFO info)
+          where
+            mkQSub sub = do
+              Sub {subThread, delivered} <- readTVar sub
+              let qSubThread = case subThread of
+                    NoSub -> QNoSub
+                    SubPending -> QSubPending
+                    SubThread _ -> QSubThread
+                    ProhibitSub -> QProhibitSub
+              qDelivered <- decodeLatin1 . encode <$$> tryReadTMVar delivered
+              pure QSub {qSubThread, qDelivered}
+          
        ok :: Transmission BrokerMsg
        ok = (corrId, queueId, OK)

@@ -254,7 +254,7 @@ onOffPrompt prompt def =
      "N" -> pure False
      _ -> putStrLn "Invalid input, please enter 'y' or 'n'" >> onOffPrompt prompt def

-onOff :: Bool -> String
+onOff :: Bool -> Text
 onOff True = "on"
 onOff _ = "off"

@@ -2,6 +2,7 @@
 {-# LANGUAGE DuplicateRecordFields #-}
 {-# LANGUAGE NamedFieldPuns #-}
 {-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE StrictData #-}

 module Simplex.Messaging.Server.Env.STM where

@@ -15,6 +16,7 @@ import qualified Data.IntMap.Strict as IM
 import Data.List.NonEmpty (NonEmpty)
 import Data.Map.Strict (Map)
 import qualified Data.Map.Strict as M
+import Data.Maybe (isJust, isNothing)
 import Data.Time.Clock (getCurrentTime)
 import Data.Time.Clock.System (SystemTime)
 import Data.X509.Validation (Fingerprint (..))
@@ -27,6 +29,7 @@ import Simplex.Messaging.Crypto (KeyHash (..))
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Protocol
 import Simplex.Messaging.Server.Expiration
+import Simplex.Messaging.Server.Information
 import Simplex.Messaging.Server.MsgStore.STM
 import Simplex.Messaging.Server.QueueStore (NtfCreds (..), QueueRec (..))
 import Simplex.Messaging.Server.QueueStore.STM
@@ -81,9 +84,12 @@ data ServerConfig = ServerConfig
    transportConfig :: TransportServerConfig,
    -- | run listener on control port
    controlPort :: Maybe ServiceName,
+    -- | SMP proxy config
    smpAgentCfg :: SMPClientAgentConfig,
    allowSMPProxy :: Bool, -- auth is the same with `newQueueBasicAuth`
-    serverClientConcurrency :: Int
+    serverClientConcurrency :: Int,
+    -- | server public information
+    information :: Maybe ServerPublicInfo
  }

 defMsgExpirationDays :: Int64
@@ -108,6 +114,7 @@ defaultProxyClientConcurrency = 32

 data Env = Env
  { config :: ServerConfig,
+    serverInfo :: ServerInformation,
    server :: Server,
    serverIdentity :: KeyHash,
    queueStore :: QueueStore,
@@ -192,7 +199,7 @@ newSubscription subThread = do
  return Sub {subThread, delivered}

 newEnv :: ServerConfig -> IO Env
-newEnv config@ServerConfig {caCertificateFile, certificateFile, privateKeyFile, storeLogFile, smpAgentCfg, transportConfig} = do
+newEnv config@ServerConfig {caCertificateFile, certificateFile, privateKeyFile, storeLogFile, smpAgentCfg, transportConfig, information, messageExpiration} = do
  server <- atomically newServer
  queueStore <- atomically newQueueStore
  msgStore <- atomically newMsgStore
@@ -206,7 +213,7 @@ newEnv config@ServerConfig {caCertificateFile, certificateFile, privateKeyFile,
  clientSeq <- newTVarIO 0
  clients <- newTVarIO mempty
  proxyAgent <- atomically $ newSMPProxyAgent smpAgentCfg random
-  return Env {config, server, serverIdentity, queueStore, msgStore, random, storeLog, tlsServerParams, serverStats, sockets, clientSeq, clients, proxyAgent}
+  pure Env {config, serverInfo, server, serverIdentity, queueStore, msgStore, random, storeLog, tlsServerParams, serverStats, sockets, clientSeq, clients, proxyAgent}
  where
    restoreQueues :: QueueStore -> FilePath -> IO (StoreLog 'WriteMode)
    restoreQueues QueueStore {queues, senders, notifiers} f = do
@@ -222,6 +229,23 @@ newEnv config@ServerConfig {caCertificateFile, certificateFile, privateKeyFile,
    addNotifier q = case notifier q of
      Nothing -> id
      Just NtfCreds {notifierId} -> M.insert notifierId (recipientId q)
+    serverInfo =
+      ServerInformation
+        { information,
+          config =
+            ServerPublicConfig
+              { persistence,
+                messageExpiration = ttl <$> messageExpiration,
+                statsEnabled = isJust $ logStatsInterval config,
+                newQueuesAllowed = allowNewQueues config,
+                basicAuthEnabled = isJust $ newQueueBasicAuth config
+              }
+        }
+      where
+        persistence
+          | isNothing storeLogFile = SPMMemoryOnly
+          | isJust (storeMsgsFile config) = SPMMessages
+          | otherwise = SPMQueues

 newSMPProxyAgent :: SMPClientAgentConfig -> TVar ChaChaDRG -> STM ProxyAgent
 newSMPProxyAgent smpAgentCfg random = do
@@ -0,0 +1,76 @@
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE DuplicateRecordFields #-}
+{-# LANGUAGE StrictData #-}
+{-# LANGUAGE TemplateHaskell #-}
+
+module Simplex.Messaging.Server.Information where
+
+import qualified Data.Aeson.TH as J
+import Data.Int (Int64)
+import Data.Text (Text)
+import Simplex.Messaging.Agent.Protocol (ConnectionMode (..), ConnectionRequestUri)
+import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON)
+
+data ServerInformation = ServerInformation
+  { config :: ServerPublicConfig,
+    information :: Maybe ServerPublicInfo
+  }
+  deriving (Show)
+
+-- based on server configuration
+data ServerPublicConfig = ServerPublicConfig
+  { persistence :: ServerPersistenceMode,
+    messageExpiration :: Maybe Int64,
+    statsEnabled :: Bool,
+    newQueuesAllowed :: Bool,
+    basicAuthEnabled :: Bool -- server is private if enabled
+  }
+  deriving (Show)
+
+-- based on INFORMATION section of INI file
+data ServerPublicInfo = ServerPublicInfo
+  { sourceCode :: Text, -- note that this property is not optional, in line with AGPLv3 license
+    usageConditions :: Maybe ServerConditions,
+    operator :: Maybe Entity,
+    website :: Maybe Text,
+    adminContacts :: Maybe ServerContactAddress,
+    complaintsContacts :: Maybe ServerContactAddress,
+    hosting :: Maybe Entity,
+    serverCountry :: Maybe Text
+  }
+  deriving (Show)
+
+data ServerPersistenceMode = SPMMemoryOnly | SPMQueues | SPMMessages
+  deriving (Show)
+
+data ServerConditions = ServerConditions {conditions :: Text, amendments :: Maybe Text}
+  deriving (Show)
+
+data Entity = Entity {name :: Text, country :: Maybe Text}
+  deriving (Show)
+
+data ServerContactAddress = ServerContactAddress
+  { simplex :: Maybe (ConnectionRequestUri 'CMContact),
+    email :: Maybe Text, -- it is recommended that it matches DNS email address, if either is present
+    pgp :: Maybe PGPKey
+  }
+  deriving (Show)
+
+data PGPKey = PGPKey {pkURI :: Text, pkFingerprint :: Text}
+  deriving (Show)
+
+$(J.deriveJSON (enumJSON $ dropPrefix "SPM") ''ServerPersistenceMode)
+
+$(J.deriveJSON defaultJSON ''ServerConditions)
+
+$(J.deriveJSON defaultJSON ''Entity)
+
+$(J.deriveJSON defaultJSON ''PGPKey)
+
+$(J.deriveJSON defaultJSON ''ServerContactAddress)
+
+$(J.deriveJSON defaultJSON ''ServerPublicConfig)
+
+$(J.deriveJSON defaultJSON ''ServerPublicInfo)
+
+$(J.deriveJSON defaultJSON ''ServerInformation)
@@ -5,34 +5,45 @@
 {-# LANGUAGE OverloadedLists #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE PatternSynonyms #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE StrictData #-}
+{-# LANGUAGE TypeApplications #-}

 module Simplex.Messaging.Server.Main where

 import Control.Concurrent.STM
-import Control.Monad (void)
+import Control.Logger.Simple
+import Control.Monad (void, when, (<$!>))
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
+import Data.Char (isAlpha, isAscii, toUpper)
 import Data.Functor (($>))
-import Data.Ini (lookupValue, readIniFile)
-import Data.Maybe (fromMaybe)
+import Data.Ini (Ini, lookupValue, readIniFile)
+import Data.List (find, isPrefixOf)
+import qualified Data.List.NonEmpty as L
+import Data.Maybe (fromMaybe, isJust, isNothing)
 import Data.Text (Text)
 import qualified Data.Text as T
 import Data.Text.Encoding (encodeUtf8)
+import qualified Data.Text.IO as T
 import Network.Socket (HostName)
 import Options.Applicative
+import Simplex.Messaging.Agent.Protocol (connReqUriP')
 import Simplex.Messaging.Client (HostMode (..), NetworkConfig (..), ProtocolClientConfig (..), SocksMode (..), defaultNetworkConfig)
 import Simplex.Messaging.Client.Agent (SMPClientAgentConfig (..), defaultSMPClientAgentConfig)
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Encoding.String
+import Simplex.Messaging.Parsers (parseAll)
 import Simplex.Messaging.Protocol (BasicAuth (..), ProtoServerWithAuth (ProtoServerWithAuth), pattern SMPServer)
 import Simplex.Messaging.Server (runSMPServer)
 import Simplex.Messaging.Server.CLI
 import Simplex.Messaging.Server.Env.STM (ServerConfig (..), defMsgExpirationDays, defaultInactiveClientExpiration, defaultMessageExpiration, defaultProxyClientConcurrency)
 import Simplex.Messaging.Server.Expiration
+import Simplex.Messaging.Server.Information
 import Simplex.Messaging.Transport (batchCmdsSMPVersion, sendingProxySMPVersion, simplexMQVersion, supportedSMPHandshakes, supportedServerSMPRelayVRange)
 import Simplex.Messaging.Transport.Client (TransportHost (..))
 import Simplex.Messaging.Transport.Server (TransportServerConfig (..), defaultTransportServerConfig)
-import Simplex.Messaging.Util (safeDecodeUtf8)
+import Simplex.Messaging.Util (eitherToMaybe, safeDecodeUtf8, tshow)
 import Simplex.Messaging.Version (mkVersionRange)
 import System.Directory (createDirectoryIfMissing, doesFileExist)
 import System.FilePath (combine)
@@ -40,7 +51,10 @@ import System.IO (BufferMode (..), hSetBuffering, stderr, stdout)
 import Text.Read (readMaybe)

 smpServerCLI :: FilePath -> FilePath -> IO ()
-smpServerCLI cfgPath logPath =
+smpServerCLI = smpServerCLI_ (\_ _ _ -> pure ()) (\_ -> pure ())
+
+smpServerCLI_ :: (ServerInformation -> Maybe TransportHost -> FilePath -> IO ()) -> (EmbeddedWebParams -> IO ()) -> FilePath -> FilePath -> IO ()
+smpServerCLI_ generateSite serveStaticFiles cfgPath logPath =
  getCliCommand' (cliCommandP cfgPath logPath iniFile) serverVersion >>= \case
    Init opts ->
      doesFileExist iniFile >>= \case
@@ -65,7 +79,10 @@ smpServerCLI cfgPath logPath =
    defaultServerPort = "5223"
    executableName = "smp-server"
    storeLogFilePath = combine logPath "smp-server-store.log"
-    initializeServer opts@InitOptions {ip, fqdn, scripted}
+    httpsCertFile = combine cfgPath "web.cert"
+    httpsKeyFile = combine cfgPath "web.key"
+    defaultStaticPath = combine logPath "www"
+    initializeServer opts@InitOptions {ip, fqdn, sourceCode = src', webStaticPath = sp', disableWeb = noWeb', scripted}
      | scripted = initialize opts
      | otherwise = do
          putStrLn "Use `smp-server init -h` for available options."
@@ -76,7 +93,19 @@ smpServerCLI cfgPath logPath =
          password <- withPrompt "'r' for random (default), 'n' - no password, or enter password: " serverPassword
          let host = fromMaybe ip fqdn
          host' <- withPrompt ("Enter server FQDN or IP address for certificate (" <> host <> "): ") getLine
-          initialize opts {enableStoreLog, logStats, fqdn = if null host' then fqdn else Just host', password}
+          sourceCode' <- withPrompt ("Enter server source code URI (" <> maybe simplexmqSource T.unpack src' <> "): ") getServerSourceCode
+          staticPath' <- withPrompt ("Enter path to store generated static site with server information (" <> fromMaybe defaultStaticPath sp' <> "): ") getLine
+          enableWeb <- onOffPrompt "Enable built-in web server for static site" (not noWeb')
+          initialize
+            opts
+              { enableStoreLog,
+                logStats,
+                fqdn = if null host' then fqdn else Just host',
+                password,
+                sourceCode = (T.pack <$> sourceCode') <|> src',
+                webStaticPath = if null staticPath' then sp' else Just staticPath',
+                disableWeb = not enableWeb
+              }
      where
        serverPassword =
          getLine >>= \case
@@ -87,7 +116,7 @@ smpServerCLI cfgPath logPath =
              case strDecode $ encodeUtf8 $ T.pack s of
                Right auth -> pure . Just $ ServerPassword auth
                _ -> putStrLn "Invalid password. Only latin letters, digits and symbols other than '@' and ':' are allowed" >> serverPassword
-        initialize InitOptions {enableStoreLog, logStats, signAlgorithm, password} = do
+        initialize InitOptions {enableStoreLog, logStats, signAlgorithm, password, sourceCode, webStaticPath, disableWeb} = do
          clearDirIfExists cfgPath
          clearDirIfExists logPath
          createDirectoryIfMissing True cfgPath
@@ -97,26 +126,29 @@ smpServerCLI cfgPath logPath =
          basicAuth <- mapM createServerPassword password
          let host = fromMaybe (if ip == "127.0.0.1" then "<hostnames>" else ip) fqdn
              srv = ProtoServerWithAuth (SMPServer [THDomainName host] "" (C.KeyHash fp)) basicAuth
-          writeFile iniFile $ iniFileContent host basicAuth
-          putStrLn $ "Server initialized, you can modify configuration in " <> iniFile <> ".\nRun `" <> executableName <> " start` to start server."
+          T.writeFile iniFile $ iniFileContent host basicAuth $ Just "https://github.com/simplex-chat/simplexmq"
+          putStrLn $ "Server initialized, please provide additional server information in " <> iniFile <> "."
+          putStrLn $ "Run `" <> executableName <> " start` to start server."
          warnCAPrivateKeyFile cfgPath x509cfg
          printServiceInfo serverVersion srv
+          printSourceCode sourceCode
          where
            createServerPassword = \case
              ServerPassword s -> pure s
              SPRandom -> BasicAuth . strEncode <$> (atomically . C.randomBytes 32 =<< C.newRandom)
-            iniFileContent host basicAuth =
-              "[STORE_LOG]\n\
-              \# The server uses STM memory for persistence,\n\
-              \# that will be lost on restart (e.g., as with redis).\n\
-              \# This option enables saving memory to append only log,\n\
-              \# and restoring it when the server is started.\n\
-              \# Log is compacted on start (deleted objects are removed).\n"
+            iniFileContent host basicAuth sourceCode' =
+              informationIniContent sourceCode'
+                <> "[STORE_LOG]\n\
+                   \# The server uses STM memory for persistence,\n\
+                   \# that will be lost on restart (e.g., as with redis).\n\
+                   \# This option enables saving memory to append only log,\n\
+                   \# and restoring it when the server is started.\n\
+                   \# Log is compacted on start (deleted objects are removed).\n"
                <> ("enable: " <> onOff enableStoreLog <> "\n\n")
                <> "# Undelivered messages are optionally saved and restored when the server restarts,\n\
                   \# they are preserved in the .bak file until the next restart.\n"
                <> ("restore_messages: " <> onOff enableStoreLog <> "\n")
-                <> ("expire_messages_days: " <> show defMsgExpirationDays <> "\n\n")
+                <> ("expire_messages_days: " <> tshow defMsgExpirationDays <> "\n\n")
                <> "# Log daily server statistics to CSV file\n"
                <> ("log_stats: " <> onOff logStats <> "\n\n")
                <> "[AUTH]\n\
@@ -129,7 +161,7 @@ smpServerCLI cfgPath logPath =
                   \# The password will not be shared with the connecting contacts, you must share it only\n\
                   \# with the users who you want to allow creating messaging queues on your server.\n"
                <> ( case basicAuth of
-                      Just auth -> "create_password: " <> T.unpack (safeDecodeUtf8 $ strEncode auth)
+                      Just auth -> "create_password: " <> safeDecodeUtf8 (strEncode auth)
                      _ -> "# create_password: password to create new queues (any printable ASCII characters without whitespace, '@', ':' and '/')"
                   )
                <> "\n\n\
@@ -137,8 +169,8 @@ smpServerCLI cfgPath logPath =
                   \# control_port_user_password:\n\n\
                   \[TRANSPORT]\n\
                   \# host is only used to print server address on start\n"
-                <> ("host: " <> host <> "\n")
-                <> ("port: " <> defaultServerPort <> "\n")
+                <> ("host: " <> T.pack host <> "\n")
+                <> ("port: " <> T.pack defaultServerPort <> "\n")
                <> "log_tls_errors: off\n\
                   \websockets: off\n\
                   \# control_port: 5224\n\n\
@@ -157,21 +189,36 @@ smpServerCLI cfgPath logPath =
                   \# or 'always' to be used for all destination hosts (can be used if it is an .onion server).\n\
                   \# socks_mode: onion\n\n\
                   \# Limit number of threads a client can spawn to process proxy commands in parrallel.\n"
-                <> ("# client_concurrency: " <> show defaultProxyClientConcurrency <> "\n\n")
+                <> ("# client_concurrency: " <> tshow defaultProxyClientConcurrency <> "\n\n")
                <> "[INACTIVE_CLIENTS]\n\
                   \# TTL and interval to check inactive clients\n\
                   \disconnect: off\n"
-                <> ("# ttl: " <> show (ttl defaultInactiveClientExpiration) <> "\n")
-                <> ("# check_interval: " <> show (checkInterval defaultInactiveClientExpiration) <> "\n")
+                <> ("# ttl: " <> tshow (ttl defaultInactiveClientExpiration) <> "\n")
+                <> ("# check_interval: " <> tshow (checkInterval defaultInactiveClientExpiration) <> "\n")
+                <> "\n\n\
+                   \[WEB]\n\
+                   \# Set path to generate static mini-site for server information and qr codes/links\n"
+                <> ("static_path: " <> T.pack (fromMaybe defaultStaticPath webStaticPath) <> "\n\n")
+                <> "# Run an embedded server on this port\n\
+                   \# Onion sites can use any port and register it in the hidden service config.\n\
+                   \# Running on a port 80 may require setting process capabilities.\n"
+                <> ((if disableWeb then "# " else "") <> "http: 8000\n\n")
+                <> "# You can run an embedded TLS web server too if you provide port and cert and key files.\n\
+                   \# Not required for running relay on onion address.\n\
+                   \# https: 443\n"
+                <> ("# cert: " <> T.pack httpsCertFile <> "\n")
+                <> ("# key: " <> T.pack httpsKeyFile <> "\n")
    runServer ini = do
      hSetBuffering stdout LineBuffering
      hSetBuffering stderr LineBuffering
      fp <- checkSavedFingerprint cfgPath defaultX509Config
      let host = either (const "<hostnames>") T.unpack $ lookupValue "TRANSPORT" "host" ini
          port = T.unpack $ strictIni "TRANSPORT" "port" ini
-          cfg@ServerConfig {transports, storeLogFile, newQueueBasicAuth, messageExpiration, inactiveClientExpiration} = serverConfig
+          cfg@ServerConfig {information, transports, storeLogFile, newQueueBasicAuth, messageExpiration, inactiveClientExpiration} = serverConfig
+          sourceCode' = (\ServerPublicInfo {sourceCode} -> sourceCode) <$> information
          srv = ProtoServerWithAuth (SMPServer [THDomainName host] (if port == "5223" then "" else port) (C.KeyHash fp)) newQueueBasicAuth
      printServiceInfo serverVersion srv
+      printSourceCode sourceCode'
      printServerConfig transports storeLogFile
      putStrLn $ case messageExpiration of
        Just ExpirationConfig {ttl} -> "expiring messages after " <> showTTL ttl
@@ -184,6 +231,20 @@ smpServerCLI cfgPath logPath =
          <> if allowNewQueues cfg
            then maybe "allowed" (const "requires password") newQueueBasicAuth
            else "NOT allowed"
+      -- print information
+      let persistence
+            | isNothing storeLogFile = SPMMemoryOnly
+            | isJust (storeMsgsFile cfg) = SPMMessages
+            | otherwise = SPMQueues
+      let config =
+            ServerPublicConfig
+              { persistence,
+                messageExpiration = ttl <$> messageExpiration,
+                statsEnabled = isJust logStats,
+                newQueuesAllowed = allowNewQueues cfg,
+                basicAuthEnabled = isJust newQueueBasicAuth
+              }
+      runWebServer ini ServerInformation {config, information}
      runSMPServer cfg
      where
        enableStoreLog = settingIsOn "STORE_LOG" "enable" ini
@@ -211,9 +272,9 @@ smpServerCLI cfgPath logPath =
                      _ -> enableStoreLog $> messagesPath,
              -- allow creating new queues by default
              allowNewQueues = fromMaybe True $ iniOnOff "AUTH" "new_queues" ini,
-              newQueueBasicAuth = either error id <$> strDecodeIni "AUTH" "create_password" ini,
-              controlPortAdminAuth = either error id <$> strDecodeIni "AUTH" "control_port_admin_password" ini,
-              controlPortUserAuth = either error id <$> strDecodeIni "AUTH" "control_port_user_password" ini,
+              newQueueBasicAuth = either error id <$!> strDecodeIni "AUTH" "create_password" ini,
+              controlPortAdminAuth = either error id <$!> strDecodeIni "AUTH" "control_port_admin_password" ini,
+              controlPortUserAuth = either error id <$!> strDecodeIni "AUTH" "control_port_user_password" ini,
              messageExpiration =
                Just
                  defaultMessageExpiration
@@ -235,7 +296,7 @@ smpServerCLI cfgPath logPath =
                  { logTLSErrors = fromMaybe False $ iniOnOff "TRANSPORT" "log_tls_errors" ini,
                    alpn = Just supportedSMPHandshakes
                  },
-              controlPort = either (const Nothing) (Just . T.unpack) $ lookupValue "TRANSPORT" "control_port" ini,
+              controlPort = eitherToMaybe $ T.unpack <$> lookupValue "TRANSPORT" "control_port" ini,
              smpAgentCfg =
                defaultSMPClientAgentConfig
                  { smpCfg =
@@ -244,7 +305,7 @@ smpServerCLI cfgPath logPath =
                          agreeSecret = True,
                          networkConfig =
                            defaultNetworkConfig
-                              { socksProxy = either error id <$> strDecodeIni "PROXY" "socks_proxy" ini,
+                              { socksProxy = either error id <$!> strDecodeIni "PROXY" "socks_proxy" ini,
                                socksMode = either (const SMOnion) textToSocksMode $ lookupValue "PROXY" "socks_mode" ini,
                                hostMode = either (const HMPublic) textToHostMode $ lookupValue "PROXY" "host_mode" ini,
                                requiredHostMode = fromMaybe False $ iniOnOff "PROXY" "required_host_mode" ini
@@ -254,7 +315,8 @@ smpServerCLI cfgPath logPath =
                    persistErrorInterval = 30 -- seconds
                  },
              allowSMPProxy = True,
-              serverClientConcurrency = readIniDefault defaultProxyClientConcurrency "PROXY" "client_concurrency" ini
+              serverClientConcurrency = readIniDefault defaultProxyClientConcurrency "PROXY" "client_concurrency" ini,
+              information = serverPublicInfo ini
            }
        textToSocksMode :: Text -> SocksMode
        textToSocksMode = \case
@@ -269,6 +331,126 @@ smpServerCLI cfgPath logPath =
        textToOwnServers :: Text -> [ByteString]
        textToOwnServers = map encodeUtf8 . T.words

+    runWebServer ini si =
+      case eitherToMaybe $ T.unpack <$> lookupValue "WEB" "static_path" ini of
+        Nothing -> logWarn "No server static path set"
+        Just webStaticPath -> do
+          let onionHost =
+                either (const Nothing) (find isOnion) $
+                  strDecode @(L.NonEmpty TransportHost) . encodeUtf8 =<< lookupValue "TRANSPORT" "host" ini
+              webHttpPort = eitherToMaybe $ read . T.unpack <$> lookupValue "WEB" "http" ini
+              webHttpsParams =
+                eitherToMaybe $ do
+                  port <- read . T.unpack <$> lookupValue "WEB" "https" ini
+                  cert <- T.unpack <$> lookupValue "WEB" "cert" ini
+                  key <- T.unpack <$> lookupValue "WEB" "key" ini
+                  pure WebHttpsParams {port, cert, key}
+          generateSite si onionHost webStaticPath
+          when (isJust webHttpPort || isJust webHttpsParams) $
+            serveStaticFiles EmbeddedWebParams {webStaticPath, webHttpPort, webHttpsParams}
+          where
+            isOnion = \case THOnionHost _ -> True; _ -> False
+
+data EmbeddedWebParams = EmbeddedWebParams
+  { webStaticPath :: FilePath,
+    webHttpPort :: Maybe Int,
+    webHttpsParams :: Maybe WebHttpsParams
+  }
+
+data WebHttpsParams = WebHttpsParams
+  { port :: Int,
+    cert :: FilePath,
+    key :: FilePath
+  }
+
+getServerSourceCode :: IO (Maybe String)
+getServerSourceCode =
+  getLine >>= \case
+    "" -> pure Nothing
+    s | "https://" `isPrefixOf` s || "http://" `isPrefixOf` s -> pure $ Just s
+    _ -> putStrLn "Invalid source code. URI should start from http:// or https://" >> getServerSourceCode
+
+simplexmqSource :: String
+simplexmqSource = "https://github.com/simplex-chat/simplexmq"
+
+informationIniContent :: Maybe Text -> Text
+informationIniContent sourceCode_ =
+  "[INFORMATION]\n\
+  \# AGPLv3 license requires that you make any source code modifications\n\
+  \# available to the end users of the server.\n\
+  \# LICENSE: https://github.com/simplex-chat/simplexmq/blob/stable/LICENSE\n\
+  \# Include correct source code URI in case the server source code is modified in any way.\n\
+  \# If any other information fields are present, source code property also MUST be present.\n\n"
+    <> (maybe "# source_code: URI" ("source_code: " <>) sourceCode_ <> "\n\n")
+    <> "# Declaring all below information is optional, any of these fields can be omitted.\n\
+       \\n\
+       \# Server usage conditions and amendments.\n\
+       \# It is recommended to use standard conditions with any amendments in a separate document.\n\
+       \# usage_conditions: https://github.com/simplex-chat/simplex-chat/blob/stable/PRIVACY.md\n\
+       \# condition_amendments: link\n\
+       \\n\
+       \# Server location and operator.\n\
+       \# server_country: ISO-3166 2-letter code\n\
+       \# operator: entity (organization or person name)\n\
+       \# operator_country: ISO-3166 2-letter code\n\
+       \# website:\n\
+       \\n\
+       \# Administrative contacts.\n\
+       \# admin_simplex: SimpleX address\n\
+       \# admin_email:\n\
+       \# admin_pgp:\n\
+       \# admin_pgp_fingerprint:\n\
+       \\n\
+       \# Contacts for complaints and feedback.\n\
+       \# complaints_simplex: SimpleX address\n\
+       \# complaints_email:\n\
+       \# complaints_pgp:\n\
+       \# complaints_pgp_fingerprint:\n\
+       \\n\
+       \# Hosting provider.\n\
+       \# hosting: entity (organization or person name)\n\
+       \# hosting_country: ISO-3166 2-letter code\n\n"
+
+serverPublicInfo :: Ini -> Maybe ServerPublicInfo
+serverPublicInfo ini = serverInfo <$!> infoValue "source_code"
+  where
+    serverInfo sourceCode =
+      ServerPublicInfo
+        { sourceCode,
+          usageConditions =
+            (\conditions -> ServerConditions {conditions, amendments = infoValue "condition_amendments"})
+              <$!> infoValue "usage_conditions",
+          serverCountry = countryValue "server_country",
+          operator = iniEntity "operator" "operator_country",
+          website = infoValue "website",
+          adminContacts = iniContacts "admin_simplex" "admin_email" "admin_pgp" "admin_pgp_fingerprint",
+          complaintsContacts = iniContacts "complaints_simplex" "complaints_email" "complaints_pgp" "complaints_pgp_fingerprint",
+          hosting = iniEntity "hosting" "hosting_country"
+        }
+    infoValue name = eitherToMaybe $ lookupValue "INFORMATION" name ini
+    iniEntity nameField countryField =
+      (\name -> Entity {name, country = countryValue countryField})
+        <$!> infoValue nameField
+    countryValue field =
+      (\cs -> if T.length cs == 2 && T.all (\c -> isAscii c && isAlpha c) cs then T.map toUpper cs else error $ "Use ISO3166 2-letter code for " <> T.unpack field)
+        <$!> infoValue field
+    iniContacts simplexField emailField pgpKeyUriField pgpKeyFingerprintField =
+      let simplex = either error id . parseAll (connReqUriP' Nothing) . encodeUtf8 <$!> eitherToMaybe (lookupValue "INFORMATION" simplexField ini)
+          email = infoValue emailField
+          pkURI_ = infoValue pgpKeyUriField
+          pkFingerprint_ = infoValue pgpKeyFingerprintField
+       in case (simplex, email, pkURI_, pkFingerprint_) of
+            (Nothing, Nothing, Nothing, _) -> Nothing
+            (Nothing, Nothing, _, Nothing) -> Nothing
+            (_, _, pkURI, pkFingerprint) -> Just ServerContactAddress {simplex, email, pgp = PGPKey <$> pkURI <*> pkFingerprint}
+
+printSourceCode :: Maybe Text -> IO ()
+printSourceCode = \case
+  Just sourceCode -> T.putStrLn $ "Server source code: " <> sourceCode
+  Nothing -> do
+    putStrLn "Warning: server source code is not specified."
+    putStrLn "Add 'source_code' property to [INFORMATION] section of INI file."
+
 data CliCommand
  = Init InitOptions
  | OnlineCert CertOptions
@@ -282,6 +464,9 @@ data InitOptions = InitOptions
    ip :: HostName,
    fqdn :: Maybe HostName,
    password :: Maybe ServerPassword,
+    sourceCode :: Maybe Text,
+    webStaticPath :: Maybe FilePath,
+    disableWeb :: Bool,
    scripted :: Bool
  }
  deriving (Show)
@@ -336,7 +521,6 @@ cliCommandP cfgPath logPath iniFile =
          ( long "fqdn"
              <> short 'n'
              <> help "Server FQDN used as Common Name for TLS online certificate"
-              <> showDefault
              <> metavar "FQDN"
          )
      password <-
@@ -349,12 +533,41 @@ cliCommandP cfgPath logPath iniFile =
                  <> help "Set password to create new messaging queues"
                  <> value SPRandom
              )
+      sourceCode <-
+        (optional . strOption)
+          ( long "source-code"
+              <> help "Server source code will be communicated to the users"
+              <> metavar "URI"
+          )
+      webStaticPath <-
+        (optional . strOption)
+          ( long "web-path"
+              <> help "Directory to store generated static site with server information"
+              <> metavar "PATH"
+          )
+      disableWeb <-
+        switch
+          ( long "disable-web"
+              <> help "Disable starting static web server with server information"
+          )
      scripted <-
        switch
          ( long "yes"
              <> short 'y'
              <> help "Non-interactive initialization using command-line options"
          )
-      pure InitOptions {enableStoreLog, logStats, signAlgorithm, ip, fqdn, password, scripted}
+      pure
+        InitOptions
+          { enableStoreLog,
+            logStats,
+            signAlgorithm,
+            ip,
+            fqdn,
+            password,
+            sourceCode,
+            webStaticPath,
+            disableWeb,
+            scripted
+          }
    parseBasicAuth :: ReadM ServerPassword
    parseBasicAuth = eitherReader $ fmap ServerPassword . strDecode . B.pack
@@ -0,0 +1,55 @@
+{-# LANGUAGE TemplateHaskell #-}
+
+module Simplex.Messaging.Server.QueueStore.QueueInfo where
+
+import qualified Data.Aeson as J
+import qualified Data.Aeson.TH as JQ
+import qualified Data.Attoparsec.ByteString.Char8 as A
+import qualified Data.ByteString.Lazy.Char8 as LB
+import Data.Text (Text)
+import Data.Time.Clock (UTCTime)
+import Simplex.Messaging.Encoding
+import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON)
+import Simplex.Messaging.Util ((<$?>))
+
+data QueueInfo = QueueInfo
+  { qiSnd :: Bool,
+    qiNtf :: Bool,
+    qiSub :: Maybe QSub,
+    qiSize :: Int,
+    qiMsg :: Maybe MsgInfo
+  }
+  deriving (Eq, Show)
+
+data QSub = QSub
+  { qSubThread :: QSubThread,
+    qDelivered :: Maybe Text
+  }
+  deriving (Eq, Show)
+
+data QSubThread = QNoSub | QSubPending | QSubThread | QProhibitSub
+  deriving (Eq, Show)
+
+data MsgInfo = MsgInfo
+  { msgId :: Text,
+    msgTs :: UTCTime,
+    msgType :: MsgType
+  }
+  deriving (Eq, Show)
+
+data MsgType = MTMessage | MTQuota
+  deriving (Eq, Show)
+
+$(JQ.deriveJSON (enumJSON $ dropPrefix "Q") ''QSubThread)
+
+$(JQ.deriveJSON defaultJSON ''QSub)
+
+$(JQ.deriveJSON (enumJSON $ dropPrefix "MT") ''MsgType)
+
+$(JQ.deriveJSON defaultJSON ''MsgInfo)
+
+$(JQ.deriveJSON defaultJSON ''QueueInfo)
+
+instance Encoding QueueInfo where
+  smpEncode = LB.toStrict . J.encode
+  smpP = J.eitherDecodeStrict <$?> A.takeByteString
@@ -8,23 +8,25 @@ import Control.Concurrent.STM
 import Control.Monad
 import Data.Composition ((.:.))
 import Data.Functor (($>))
+import Data.Time (UTCTime)
 import Simplex.Messaging.TMap (TMap)
 import qualified Simplex.Messaging.TMap as TM
 import Simplex.Messaging.Util (($>>=))

 data SessionVar a = SessionVar
  { sessionVar :: TMVar a,
-    sessionVarId :: Int
+    sessionVarId :: Int,
+    sessionVarTs :: UTCTime
  }

-getSessVar :: forall k a. Ord k => TVar Int -> k -> TMap k (SessionVar a) -> STM (Either (SessionVar a) (SessionVar a))
-getSessVar sessSeq sessKey vs = maybe (Left <$> newSessionVar) (pure . Right) =<< TM.lookup sessKey vs
+getSessVar :: forall k a. Ord k => TVar Int -> k -> TMap k (SessionVar a) -> UTCTime -> STM (Either (SessionVar a) (SessionVar a))
+getSessVar sessSeq sessKey vs sessionVarTs = maybe (Left <$> newSessionVar) (pure . Right) =<< TM.lookup sessKey vs
  where
    newSessionVar :: STM (SessionVar a)
    newSessionVar = do
      sessionVar <- newEmptyTMVar
      sessionVarId <- stateTVar sessSeq $ \next -> (next, next + 1)
-      let v = SessionVar {sessionVar, sessionVarId}
+      let v = SessionVar {sessionVar, sessionVarId, sessionVarTs}
      TM.insert sessKey v vs
      pure v

@@ -19,7 +19,7 @@ module Simplex.Messaging.Transport.Server
    loadTLSServerParams,
    loadFingerprint,
    smpServerHandshake,
-    tlsServerCredentials
+    tlsServerCredentials,
  )
 where

@@ -35,11 +35,14 @@ import Data.Maybe (fromJust, fromMaybe)
 import qualified Data.X509 as X
 import Data.X509.Validation (Fingerprint (..))
 import qualified Data.X509.Validation as XV
+import Foreign.C.Error
+import GHC.IO.Exception (ioe_errno)
 import Network.Socket
 import qualified Network.TLS as T
 import Simplex.Messaging.Transport
 import Simplex.Messaging.Util (catchAll_, labelMyThread, tshow)
 import System.Exit (exitFailure)
+import System.IO.Error (tryIOError)
 import System.Mem.Weak (Weak, deRefWeak)
 import UnliftIO (timeout)
 import UnliftIO.Concurrent
@@ -113,7 +116,7 @@ runTCPServer started port server = do
 runTCPServerSocket :: SocketState -> TMVar Bool -> IO Socket -> (Socket -> IO ()) -> IO ()
 runTCPServerSocket (accepted, gracefullyClosed, clients) started getSocket server =
  E.bracket getSocket (closeServer started clients) $ \sock ->
-    forever . E.bracketOnError (accept sock) (close . fst) $ \(conn, _peer) -> do
+    forever . E.bracketOnError (safeAccept sock) (close . fst) $ \(conn, _peer) -> do
      cId <- atomically $ stateTVar accepted $ \cId -> let cId' = cId + 1 in cId `seq` (cId', cId')
      let closeConn _ = do
            atomically $ modifyTVar' clients $ IM.delete cId
@@ -122,6 +125,27 @@ runTCPServerSocket (accepted, gracefullyClosed, clients) started getSocket serve
      tId <- mkWeakThreadId =<< server conn `forkFinally` closeConn
      atomically $ modifyTVar' clients $ IM.insert cId tId

+-- | Recover from errors in `accept` whenever it is safe.
+-- Some errors are safe to ignore, while blindly restaring `accept` may trigger a busy loop.
+--
+-- man accept says:
+-- @
+-- For  reliable  operation the application should detect the network errors defined for the protocol after accept() and treat them like EAGAIN by retrying.
+-- In  the  case  of  TCP/IP, these are ENETDOWN, EPROTO, ENOPROTOOPT, EHOSTDOWN, ENONET, EHOSTUNREACH, EOPNOTSUPP, and ENETUNREACH.
+-- @
+safeAccept :: Socket -> IO (Socket, SockAddr)
+safeAccept sock =
+  tryIOError (accept sock) >>= \case
+    Right r -> pure r
+    Left e
+      | retryAccept -> logWarn err >> safeAccept sock
+      | otherwise -> logError err >> E.throwIO e
+      where
+        retryAccept = maybe False ((`elem` again) . Errno) errno
+        again = [eAGAIN, eNETDOWN, ePROTO, eNOPROTOOPT, eHOSTDOWN, eNONET, eHOSTUNREACH, eOPNOTSUPP, eNETUNREACH]
+        err = "socket accept error: " <> tshow e <> maybe "" ((", errno=" <>) . tshow) errno
+        errno = ioe_errno e
+
 type SocketState = (TVar Int, TVar Int, TVar (IntMap (Weak ThreadId)))

 newSocketState :: STM SocketState
@@ -123,7 +123,7 @@ instance StrEncoding RCSignedInvitation where
    idsig <- requiredP sigs "idsig" $ parseAll strP
    pure RCSignedInvitation {invitation, ssig, idsig}

-signInvitation :: C.PrivateKey C.Ed25519 -> C.PrivateKey C.Ed25519 -> RCInvitation -> RCSignedInvitation
+signInvitation :: C.PrivateKey 'C.Ed25519 -> C.PrivateKey 'C.Ed25519 -> RCInvitation -> RCSignedInvitation
 signInvitation sKey idKey invitation = RCSignedInvitation {invitation, ssig, idsig}
  where
    uri = strEncode invitation
@@ -57,6 +57,7 @@ import Control.Monad
 import Control.Monad.Except
 import Control.Monad.Reader
 import Data.Bifunctor (first)
+import qualified Data.ByteString.Base64 as B64
 import Data.ByteString.Char8 (ByteString)
 import qualified Data.ByteString.Char8 as B
 import Data.Either (isRight)
@@ -66,6 +67,7 @@ import Data.List.NonEmpty (NonEmpty)
 import qualified Data.Map as M
 import Data.Maybe (isJust, isNothing)
 import qualified Data.Set as S
+import Data.Text.Encoding (decodeLatin1)
 import Data.Time.Clock (diffUTCTime, getCurrentTime)
 import Data.Time.Clock.System (SystemTime (..), getSystemTime)
 import Data.Type.Equality (testEquality, (:~:) (Refl))
@@ -92,6 +94,7 @@ import Simplex.Messaging.Protocol (BasicAuth, ErrorType (..), MsgBody, ProtocolS
 import qualified Simplex.Messaging.Protocol as SMP
 import Simplex.Messaging.Server.Env.STM (ServerConfig (..))
 import Simplex.Messaging.Server.Expiration
+import Simplex.Messaging.Server.QueueStore.QueueInfo
 import Simplex.Messaging.Transport (ATransport (..), SMPVersion, VersionSMP, authCmdsSMPVersion, basicAuthSMPVersion, batchCmdsSMPVersion, currentServerSMPRelayVersion, supportedSMPHandshakes)
 import Simplex.Messaging.Util (diffToMicroseconds)
 import Simplex.Messaging.Version (VersionRange (..))
@@ -107,8 +110,11 @@ type AEntityTransmission e = (ACorrId, ConnId, ACommand 'Agent e)

 -- deriving instance Eq (ValidFileDescription p)

+shouldRespond :: (HasCallStack, MonadUnliftIO m, Eq a, Show a) => m a -> a -> m ()
+a `shouldRespond` r = withFrozenCallStack $ withTimeout a (`shouldBe` r)
+
 (##>) :: (HasCallStack, MonadUnliftIO m) => m (AEntityTransmission e) -> AEntityTransmission e -> m ()
-a ##> t = withTimeout a (`shouldBe` t)
+a ##> t = a `shouldRespond` t

 (=##>) :: (Show a, HasCallStack, MonadUnliftIO m) => m a -> (HasCallStack => a -> Bool) -> m ()
 a =##> p =
@@ -228,7 +234,7 @@ mkVersionRange :: Word16 -> Word16 -> VersionRange v
 mkVersionRange v1 v2 = V.mkVersionRange (Version v1) (Version v2)

 runRight_ :: (Eq e, Show e, HasCallStack) => ExceptT e IO () -> Expectation
-runRight_ action = runExceptT action `shouldReturn` Right ()
+runRight_ action = withFrozenCallStack $ runExceptT action `shouldReturn` Right ()

 runRight :: (Show e, HasCallStack) => ExceptT e IO a -> IO a
 runRight action =
@@ -444,6 +450,9 @@ functionalAPITests t = do
    it "should wait for user network" testWaitForUserNetwork
    it "should not reset online to offline if happens too quickly" testDoNotResetOnlineToOffline
    it "should resume multiple threads" testResumeMultipleThreads
+  describe "SMP queue info" $ do
+    it "server should respond with queue and subscription information" $
+      withSmpServer t testServerQueueInfo

 testBasicAuth :: ATransport -> Bool -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, VersionSMP) -> (Maybe BasicAuth, VersionSMP) -> IO Int
 testBasicAuth t allowNewQueues srv@(srvAuth, srvVersion) clnt1 clnt2 = do
@@ -2755,6 +2764,91 @@ testResumeMultipleThreads = do
  where
    aCfg = agentCfg {userOfflineDelay = 0}

+testServerQueueInfo :: IO ()
+testServerQueueInfo = do
+  withAgentClients2 $ \alice bob -> runRight_ $ do
+    (bobId, cReq) <- createConnection alice 1 True SCMInvitation Nothing SMSubscribe
+    liftIO $ threadDelay 200000
+    checkEmptyQ alice bobId False
+    aliceId <- joinConnection bob 1 True cReq "bob's connInfo" SMSubscribe
+    ("", _, CONF confId _ "bob's connInfo") <- get alice
+    liftIO $ threadDelay 200000
+    checkEmptyQ alice bobId False
+    allowConnection alice bobId confId "alice's connInfo"
+    get alice ##> ("", bobId, CON)
+    get bob ##> ("", aliceId, INFO "alice's connInfo")
+    get bob ##> ("", aliceId, CON)
+    liftIO $ threadDelay 200000
+    checkEmptyQ alice bobId True
+    checkEmptyQ bob aliceId True
+    let msgId = 4
+    (msgId', PQEncOn) <- A.sendMessage alice bobId PQEncOn SMP.noMsgFlags "hello"
+    liftIO $ msgId' `shouldBe` msgId
+    get alice ##> ("", bobId, SENT msgId)
+    liftIO $ threadDelay 200000
+    Just srvMsgId <- checkMsgQ bob aliceId 1
+    get bob =##> \case
+      ("", c, MSG MsgMeta {integrity = MsgOk, broker = (smId, _), recipient = (mId, _), pqEncryption = PQEncOn} _ "hello") ->
+        c == aliceId && decodeLatin1 (B64.encode smId) == srvMsgId && mId == msgId
+      _ -> False
+    ackMessage bob aliceId msgId Nothing
+    liftIO $ threadDelay 200000
+    checkEmptyQ bob aliceId True
+    (msgId1, PQEncOn) <- A.sendMessage alice bobId PQEncOn SMP.noMsgFlags "hello 1"
+    get alice ##> ("", bobId, SENT msgId1)
+    Just _ <- checkMsgQ bob aliceId 1
+    (msgId2, PQEncOn) <- A.sendMessage alice bobId PQEncOn SMP.noMsgFlags "hello 2"
+    get alice ##> ("", bobId, SENT msgId2)
+    (msgId3, PQEncOn) <- A.sendMessage alice bobId PQEncOn SMP.noMsgFlags "hello 3"
+    get alice ##> ("", bobId, SENT msgId3)
+    (msgId4, PQEncOn) <- A.sendMessage alice bobId PQEncOn SMP.noMsgFlags "hello 4"
+    get alice ##> ("", bobId, SENT msgId4)
+    Just _ <- checkMsgQ bob aliceId 4
+    (msgId5, PQEncOn) <- A.sendMessage alice bobId PQEncOn SMP.noMsgFlags "hello: quota exceeded"
+    liftIO $ threadDelay 200000
+    Just _ <- checkMsgQ bob aliceId 5
+    get bob =##> \case ("", c, Msg' mId PQEncOn "hello 1") -> c == aliceId && mId == msgId1; _ -> False
+    ackMessage bob aliceId msgId1 Nothing
+    liftIO $ threadDelay 200000
+    Just _ <- checkMsgQ bob aliceId 4
+    get bob =##> \case ("", c, Msg' mId PQEncOn "hello 2") -> c == aliceId && mId == msgId2; _ -> False
+    ackMessage bob aliceId msgId2 Nothing
+    get bob =##> \case ("", c, Msg' mId PQEncOn "hello 3") -> c == aliceId && mId == msgId3; _ -> False
+    ackMessage bob aliceId msgId3 Nothing
+    liftIO $ threadDelay 200000
+    Just _ <- checkMsgQ bob aliceId 2
+    get bob =##> \case ("", c, Msg' mId PQEncOn "hello 4") -> c == aliceId && mId == msgId4; _ -> False
+    ackMessage bob aliceId msgId4 Nothing
+    liftIO $ threadDelay 200000
+    Just _ <- checkMsgQ bob aliceId 1 -- the one that did not fit now accepted
+    get alice ##> ("", bobId, QCONT)
+    get alice ##> ("", bobId, SENT msgId5)
+    liftIO $ threadDelay 200000
+    Just _srvMsgId <- checkQ bob aliceId True (Just QNoSub) 1 (Just MTMessage)
+    get bob =##> \case ("", c, Msg' mId PQEncOn "hello: quota exceeded") -> c == aliceId && mId == msgId5 + 1; _ -> False
+    ackMessage bob aliceId (msgId5 + 1) Nothing
+    liftIO $ threadDelay 200000
+    checkEmptyQ bob aliceId True
+    pure ()
+  where
+    checkEmptyQ c cId qiSnd' = do
+      r <- checkQ c cId qiSnd' (Just QSubThread) 0 Nothing
+      liftIO $ r `shouldBe` Nothing
+    checkMsgQ c cId qiSize' = do
+      r <- checkQ c cId True (Just QNoSub) qiSize' (Just MTMessage)
+      liftIO $ isJust r `shouldBe` True
+      pure r
+    checkQ c cId qiSnd' qiSubThread_ qiSize' msgType_ = do
+      QueueInfo {qiSnd, qiNtf, qiSub, qiSize, qiMsg} <- getConnectionQueueInfo c cId
+      liftIO $ do
+        qiSnd `shouldBe` qiSnd'
+        qiNtf `shouldBe` False
+        qSubThread <$> qiSub `shouldBe` qiSubThread_
+        qiSize `shouldBe` qiSize'
+        msgId_ <- forM qiMsg $ \MsgInfo {msgId, msgType} -> msgId <$ (Just msgType `shouldBe` msgType_)
+        qDelivered <$> qiSub `shouldBe` Just msgId_
+        pure msgId_
+
 noNetworkDelay :: AgentClient -> IO ()
 noNetworkDelay a = do
  d <- waitNetwork a
@@ -57,7 +57,7 @@ smpServerTest :: Bool -> Bool -> IO ()
 smpServerTest storeLog basicAuth = do
  -- init
  capture_ (withArgs (["init", "-y"] <> ["-l" | storeLog] <> ["--no-password" | not basicAuth]) $ smpServerCLI cfgPath logPath)
-    >>= (`shouldSatisfy` (("Server initialized, you can modify configuration in " <> cfgPath <> "/smp-server.ini") `isPrefixOf`))
+    >>= (`shouldSatisfy` (("Server initialized, please provide additional server information in " <> cfgPath <> "/smp-server.ini") `isPrefixOf`))
  Right ini <- readIniFile $ cfgPath <> "/smp-server.ini"
  lookupValue "STORE_LOG" "enable" ini `shouldBe` Right (if storeLog then "on" else "off")
  lookupValue "STORE_LOG" "log_stats" ini `shouldBe` Right "off"
@@ -77,13 +77,13 @@ smpServerTest storeLog basicAuth = do
  let certPath = cfgPath </> "server.crt"
  oldCrt@X.Certificate {} <-
    XF.readSignedObject certPath >>= \case
-      [cert] -> pure . X.signedObject $ X.getSigned cert
+      [cert'] -> pure . X.signedObject $ X.getSigned cert'
      _ -> error "bad crt format"
  r' <- lines <$> capture_ (withArgs ["cert"] $ (100000 `timeout` smpServerCLI cfgPath logPath) `catchAll_` pure (Just ()))
  r' `shouldContain` ["Generated new server credentials"]
  newCrt <-
    XF.readSignedObject certPath >>= \case
-      [cert] -> pure . X.signedObject $ X.getSigned cert
+      [cert'] -> pure . X.signedObject $ X.getSigned cert'
      _ -> error "bad crt format after cert"
  X.certSignatureAlg oldCrt `shouldBe` X.certSignatureAlg newCrt
  X.certSubjectDN oldCrt `shouldBe` X.certSubjectDN newCrt
@@ -59,6 +59,9 @@ testStoreLogFile2 = "tests/tmp/smp-server-store.log.2"
 testStoreMsgsFile :: FilePath
 testStoreMsgsFile = "tests/tmp/smp-server-messages.log"

+testStoreMsgsFile2 :: FilePath
+testStoreMsgsFile2 = "tests/tmp/smp-server-messages.log.2"
+
 testServerStatsBackupFile :: FilePath
 testServerStatsBackupFile = "tests/tmp/smp-server-stats.log"

@@ -120,7 +123,8 @@ cfg =
      controlPort = Nothing,
      smpAgentCfg = defaultSMPClientAgentConfig {persistErrorInterval = 1}, -- seconds
      allowSMPProxy = False,
-      serverClientConcurrency = 2
+      serverClientConcurrency = 2,
+      information = Nothing
    }

 cfgV7 :: ServerConfig
@@ -14,6 +14,7 @@ module SMPProxyTests where

 import AgentTests.EqInstances ()
 import AgentTests.FunctionalAPITests
+import Control.Concurrent (ThreadId)
 import Control.Logger.Simple
 import Control.Monad (forM, forM_, forever)
 import Control.Monad.Trans.Except (ExceptT, runExceptT)
@@ -113,6 +114,8 @@ smpProxyTests = do
          agentDeliverMessageViaProxy ([srv1], SPMUnknown, False) ([srv2], SPMUnknown, False) C.SEd448 "hello 1" "hello 2"
        it "fails when fallback is prohibited" . twoServers_ proxyCfg cfgV7 $
          agentViaProxyVersionError
+        it "retries sending when destination or proxy relay is offline" $
+          agentViaProxyRetryOffline
      describe "stress test 1k" $ do
        let deliver nAgents nMsgs = agentDeliverMessagesViaProxyConc (replicate nAgents [srv1]) (map bshow [1 :: Int .. nMsgs])
        it "2 agents, 250 messages" . oneServer $ deliver 2 250
@@ -290,6 +293,68 @@ agentViaProxyVersionError =
  where
    servers srvs = (initAgentServersProxy SPMUnknown SPFProhibit) {smp = userServers $ L.map noAuthSrv srvs}

+agentViaProxyRetryOffline :: IO ()
+agentViaProxyRetryOffline = do
+  let srv1 = SMPServer testHost testPort testKeyHash
+      srv2 = SMPServer testHost testPort2 testKeyHash
+      msg1 = "hello 1"
+      msg2 = "hello 2"
+      aProxySrv = Just srv1
+      bProxySrv = Just srv2
+  withAgent 1 aCfg (servers srv1) testDB $ \alice ->
+    withAgent 2 aCfg (servers srv2) testDB2 $ \bob -> do
+      let pqEnc = CR.PQEncOn
+      withServer $ \_ -> do
+        (aliceId, bobId) <- withServer2 $ \_ -> runRight $ do
+          (bobId, qInfo) <- A.createConnection alice 1 True SCMInvitation Nothing (CR.IKNoPQ PQSupportOn) SMSubscribe
+          aliceId <- A.joinConnection bob 1 Nothing True qInfo "bob's connInfo" PQSupportOn SMSubscribe
+          ("", _, A.CONF confId pqSup' _ "bob's connInfo") <- get alice
+          liftIO $ pqSup' `shouldBe` PQSupportOn
+          allowConnection alice bobId confId "alice's connInfo"
+          get alice ##> ("", bobId, A.CON pqEnc)
+          get bob ##> ("", aliceId, A.INFO PQSupportOn "alice's connInfo")
+          get bob ##> ("", aliceId, A.CON pqEnc)
+          1 <- msgId <$> A.sendMessage alice bobId pqEnc noMsgFlags msg1
+          get alice ##> ("", bobId, A.SENT (baseId + 1) aProxySrv)
+          get bob =##> \case ("", c, Msg' _ pq msg1') -> c == aliceId && pq == pqEnc && msg1 == msg1'; _ -> False
+          ackMessage bob aliceId (baseId + 1) Nothing
+          2 <- msgId <$> A.sendMessage bob aliceId pqEnc noMsgFlags msg2
+          get bob ##> ("", aliceId, A.SENT (baseId + 2) bProxySrv)
+          get alice =##> \case ("", c, Msg' _ pq msg2') -> c == bobId && pq == pqEnc && msg2 == msg2'; _ -> False
+          ackMessage alice bobId (baseId + 2) Nothing
+          pure (aliceId, bobId)
+        runRight_ $ do
+          -- destination relay down
+          3 <- msgId <$> A.sendMessage alice bobId pqEnc noMsgFlags msg1
+          bob `down` aliceId
+        withServer2 $ \_ -> runRight_ $ do
+          bob `up` aliceId
+          get alice ##> ("", bobId, A.SENT (baseId + 3) aProxySrv)
+          get bob =##> \case ("", c, Msg' _ pq msg1') -> c == aliceId && pq == pqEnc && msg1 == msg1'; _ -> False
+          ackMessage bob aliceId (baseId + 3) Nothing
+        runRight_ $ do
+          -- proxy relay down
+          4 <- msgId <$> A.sendMessage bob aliceId pqEnc noMsgFlags msg2
+          bob `down` aliceId
+        withServer2 $ \_ -> runRight_ $ do
+          bob `up` aliceId
+          get bob ##> ("", aliceId, A.SENT (baseId + 4) bProxySrv)
+          get alice =##> \case ("", c, Msg' _ pq msg2') -> c == bobId && pq == pqEnc && msg2 == msg2'; _ -> False
+          ackMessage alice bobId (baseId + 4) Nothing
+  where
+    withServer :: (ThreadId -> IO a) -> IO a
+    withServer = withServer_ testStoreLogFile testStoreMsgsFile testPort
+    withServer2 :: (ThreadId -> IO a) -> IO a
+    withServer2 = withServer_ testStoreLogFile2 testStoreMsgsFile2 testPort2
+    withServer_ storeLog storeMsgs port =
+      withSmpServerConfigOn (transport @TLS) proxyCfg {storeLogFile = Just storeLog, storeMsgsFile = Just storeMsgs} port
+    a `up` cId = nGet a =##> \case ("", "", UP _ [c]) -> c == cId; _ -> False
+    a `down` cId = nGet a =##> \case ("", "", DOWN _ [c]) -> c == cId; _ -> False
+    aCfg = agentProxyCfg {messageRetryInterval = fastMessageRetryInterval}
+    baseId = 3
+    msgId = subtract baseId . fst
+    servers srv = (initAgentServersProxy SPMAlways SPFProhibit) {smp = userServers $ L.map noAuthSrv [srv]}
+
 testNoProxy :: IO ()
 testNoProxy = do
  withSmpServerConfigOn (transport @TLS) cfg testPort2 $ \_ -> do
@@ -46,7 +46,11 @@ import XFTPClient

 xftpAgentTests :: Spec
 xftpAgentTests = around_ testBracket . describe "agent XFTP API" $ do
-  it "should send and receive file" testXFTPAgentSendReceive
+  it "should send and receive file" $ withXFTPServer testXFTPAgentSendReceive
+  -- uncomment CPP option slow_servers and run hpack to run this test
+  xit "should send and receive file with slow server responses" $
+    withXFTPServerCfg testXFTPServerConfig {responseDelay = 500000} $
+      \_ -> testXFTPAgentSendReceive
  it "should send and receive with encrypted local files" testXFTPAgentSendReceiveEncrypted
  it "should send and receive large file with a redirect" testXFTPAgentSendReceiveRedirect
  it "should send and receive small file without a redirect" testXFTPAgentSendReceiveNoRedirect
@@ -100,7 +104,7 @@ checkProgress (prev, expected) (progress, total) loop
  | otherwise = pure ()

 testXFTPAgentSendReceive :: HasCallStack => IO ()
-testXFTPAgentSendReceive = withXFTPServer $ do
+testXFTPAgentSendReceive = do
  filePath <- createRandomFile
  -- send file, delete snd file internally
  (rfd1, rfd2) <- withAgent 1 agentCfg initAgentServers testDB $ \sndr -> runRight $ do
@@ -124,7 +124,8 @@ testXFTPServerConfig_ alpn =
      logStatsStartTime = 0,
      serverStatsLogFile = "tests/tmp/xftp-server-stats.daily.log",
      serverStatsBackupFile = Nothing,
-      transportConfig = defaultTransportServerConfig {alpn}
+      transportConfig = defaultTransportServerConfig {alpn},
+      responseDelay = 0
    }

 testXFTPClientConfig :: XFTPClientConfig
Author	SHA1	Message	Date
Evgeny Poberezkin	2e4f507919	5.8.0.10	2024-05-31 22:20:30 +01:00
Evgeny Poberezkin	d28b17e787	xftp server: send HTTP2 error as timeout error to the client so it is treated as temporary (#1186 ) * xftp server: log file reception error * report HTTP2 error as timeout error * reduce timeout to 5 min * process timeout error in protocol response * log warning on timeout/HTTP2 error	2024-05-31 22:18:28 +01:00
Evgeny Poberezkin	e1017e2a7f	5.8.0.9	2024-05-31 14:25:57 +01:00
Evgeny Poberezkin	1ff91d888f	Merge branch 'stable'	2024-05-31 14:25:19 +01:00
Evgeny Poberezkin	0b5ab3a374	5.7.6.0	2024-05-31 14:23:21 +01:00
Evgeny Poberezkin	8ed54b33e0	agent: report correct errors from xftp handshake so they are treated as temporary (#1184 ) * agent: report correct errors from xftp handshake so they are treated as temporary * disable slow servers test * remove comments * all tests * remove duplicate functions	2024-05-31 13:01:13 +01:00
Evgeny Poberezkin	3a3a84c58c	server: log proxy connection errors	2024-05-31 12:20:29 +01:00
Evgeny Poberezkin	d12ea92055	agent: report correct errors from xftp handshake so they are treated as temporary (#1184 ) * agent: report correct errors from xftp handshake so they are treated as temporary * disable slow servers test * remove comments * all tests * remove duplicate functions	2024-05-31 09:47:47 +01:00
Evgeny Poberezkin	6e4067dc0c	add string encodings for SMPProxyMode and SMPProxyFallback	2024-05-31 09:16:00 +01:00
Evgeny Poberezkinandspaced4ndy	88f1b727e0	SMP protocol extension to debug subscribed SMP queues (#1181 ) * SMP protocol extension to debug subscribed SMP queues * fix, test * corrections Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com> * increase delays * increase timeout * delay * delay * enable all tests --------- Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com>	2024-05-30 18:49:43 +01:00
spaced4ndy	97a953550f	agent: getAgentQueuesInfo (#1180 )	2024-05-30 14:21:29 +04:00
Evgeny Poberezkin	39b3b5a25e	5.8.0.8	2024-05-29 13:19:10 +01:00
Alexander BondarenkoandEvgeny Poberezkin	15f0bb9e79	tcp-server: recover from accept errors (#1179 ) * tcp-server: recover from accept errors * log * warn * where * retry --------- Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>	2024-05-29 13:18:00 +01:00
Evgeny Poberezkin Alexander Bondarenko M. Sarmad Qadeer	5c2c88315a	SMP server information (#1072 ) * SMP server information * fix tests * country codes * smp-server: serve contact and link pages from static files (#1084) * smp-server: serve contact and link pages from static files * generate index * use params from ini * render using ServerInformation * tweak templates * update * fix some html * smp-server: fix layout (#1097) * smp-server: fix layout * port fixes to link page --------- Co-authored-by: Alexander Bondarenko <486682+dpwiz@users.noreply.github.com> * update server information page --------- Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com> Co-authored-by: M. Sarmad Qadeer <MSarmadQadeer@gmail.com> * update server info * web: improve server info page design (#1166) * web: improve server info page design * web: fix font errors & some tags * web: improve contact & invitation page layout and header * update * remove unused files/css * cleanup * fix link page * remove unused font links --------- Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com> * show contact address as is --------- Co-authored-by: Alexander Bondarenko <486682+dpwiz@users.noreply.github.com> Co-authored-by: M. Sarmad Qadeer <MSarmadQadeer@gmail.com>	2024-05-29 11:30:42 +01:00
Evgeny Poberezkin	0f663bd569	5.8.0.7	2024-05-29 08:09:27 +01:00
Evgeny Poberezkin	63f5e76f9c	agent: treat absent proxy session as a temporary error to retry sending (#1178 ) * agent: treat absent proxy session as a temporary error to retry sending * enable all tests	2024-05-29 08:06:01 +01:00
Evgeny Poberezkin	df35c50b99	5.7.5.0	2024-05-25 11:10:14 +01:00