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* companion: channel names

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This commit is contained in:
Scott Powell
2025-03-11 17:58:12 +11:00
parent adf9b24867
commit b94fed4e4e
4 changed files with 54 additions and 43 deletions
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31
src/helpers/BaseChatMesh.cpp
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@@ -204,8 +204,8 @@ void BaseChatMesh::onAckRecv(mesh::Packet* packet, uint32_t ack_crc) {
int BaseChatMesh::searchChannelsByHash(const uint8_t* hash, mesh::GroupChannel dest[], int max_matches) {
int n = 0;
for (int i = 0; i < MAX_GROUP_CHANNELS && n < max_matches; i++) {
if (channels[i].hash[0] == hash[0]) {
dest[n++] = channels[i];
if (channels[i].channel.hash[0] == hash[0]) {
dest[n++] = channels[i].channel;
}
}
return n;
@@ -588,36 +588,37 @@ bool BaseChatMesh::removeContact(ContactInfo& contact) {
#ifdef MAX_GROUP_CHANNELS
#include <base64.hpp>
mesh::GroupChannel* BaseChatMesh::addChannel(const char* psk_base64) {
ChannelDetails* BaseChatMesh::addChannel(const char* name, const char* psk_base64) {
if (num_channels < MAX_GROUP_CHANNELS) {
auto dest = &channels[num_channels];
memset(dest->secret, 0, sizeof(dest->secret));
int len = decode_base64((unsigned char *) psk_base64, strlen(psk_base64), dest->secret);
memset(dest->channel.secret, 0, sizeof(dest->channel.secret));
int len = decode_base64((unsigned char *) psk_base64, strlen(psk_base64), dest->channel.secret);
if (len == 32 || len == 16) {
mesh::Utils::sha256(dest->hash, sizeof(dest->hash), dest->secret, len);
mesh::Utils::sha256(dest->channel.hash, sizeof(dest->channel.hash), dest->channel.secret, len);
StrHelper::strncpy(dest->name, name, sizeof(dest->name));
num_channels++;
return dest;
}
}
return NULL;
}
bool BaseChatMesh::getChannel(int idx, mesh::GroupChannel& dest) {
bool BaseChatMesh::getChannel(int idx, ChannelDetails& dest) {
if (idx >= 0 && idx < MAX_GROUP_CHANNELS) {
dest = channels[idx];
return true;
}
return false;
}
bool BaseChatMesh::setChannel(int idx, const mesh::GroupChannel& src) {
bool BaseChatMesh::setChannel(int idx, const ChannelDetails& src) {
static uint8_t zeroes[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
if (idx >= 0 && idx < MAX_GROUP_CHANNELS) {
channels[idx] = src;
if (memcmp(&src.secret[16], zeroes, 16) == 0) {
mesh::Utils::sha256(channels[idx].hash, sizeof(channels[idx].hash), src.secret, 16); // 128-bit key
if (memcmp(&src.channel.secret[16], zeroes, 16) == 0) {
mesh::Utils::sha256(channels[idx].channel.hash, sizeof(channels[idx].channel.hash), src.channel.secret, 16); // 128-bit key
} else {
mesh::Utils::sha256(channels[idx].hash, sizeof(channels[idx].hash), src.secret, 32); // 256-bit key
mesh::Utils::sha256(channels[idx].channel.hash, sizeof(channels[idx].channel.hash), src.channel.secret, 32); // 256-bit key
}
return true;
}
@@ -625,18 +626,18 @@ bool BaseChatMesh::setChannel(int idx, const mesh::GroupChannel& src) {
}
int BaseChatMesh::findChannelIdx(const mesh::GroupChannel& ch) {
for (int i = 0; i < MAX_GROUP_CHANNELS; i++) {
if (memcmp(ch.secret, channels[i].secret, sizeof(ch.secret)) == 0) return i;
if (memcmp(ch.secret, channels[i].channel.secret, sizeof(ch.secret)) == 0) return i;
}
return -1; // not found
}
#else
mesh::GroupChannel* BaseChatMesh::addChannel(const char* psk_base64) {
ChannelDetails* BaseChatMesh::addChannel(const char* psk_base64) {
return NULL; // not supported
}
bool BaseChatMesh::getChannel(int idx, mesh::GroupChannel& dest) {
bool BaseChatMesh::getChannel(int idx, ChannelDetails& dest) {
return false;
}
bool BaseChatMesh::setChannel(int idx, const mesh::GroupChannel& src) {
bool BaseChatMesh::setChannel(int idx, const ChannelDetails& src) {
return false;
}
int BaseChatMesh::findChannelIdx(const mesh::GroupChannel& ch) {