mirror of
https://github.com/livekit/livekit.git
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3633dfe39e
* Disable H.264 for android firefox * Fix syntax error for rule * lower case * Remove disabled codec from AddTrackRequest * Consistent handling of enabled codecs Mainly cleaning up where we are doing codec filtering. There's also behavior change of how we handle codec compatibility. If a client doesn't support the client's desired codec, we'll pick a backup automatically instead of rejecting the client's request. Requires an update on multi-codec simulcast handling. * fix alternative codec selection --------- Co-authored-by: David Zhao <dz@livekit.io>
93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
// Copyright 2023 LiveKit, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package clientconfiguration
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import (
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"context"
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"errors"
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"strings"
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"github.com/d5/tengo/v2"
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"github.com/livekit/protocol/livekit"
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)
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type Match interface {
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Match(clientInfo *livekit.ClientInfo) (bool, error)
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}
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type ScriptMatch struct {
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Expr string
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}
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// use result of eval script expression for match.
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// expression examples:
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// protocol bigger than 5 : c.protocol > 5
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// browser if firefox: c.browser == "firefox"
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// combined rule : c.protocol > 5 && c.browser == "firefox"
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func (m *ScriptMatch) Match(clientInfo *livekit.ClientInfo) (bool, error) {
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res, err := tengo.Eval(context.TODO(), m.Expr, map[string]interface{}{"c": &clientObject{info: clientInfo}})
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if err != nil {
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return false, err
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}
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if val, ok := res.(bool); ok {
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return val, nil
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}
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return false, errors.New("invalid match expression result")
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}
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type clientObject struct {
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tengo.ObjectImpl
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info *livekit.ClientInfo
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}
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func (c *clientObject) TypeName() string {
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return "clientObject"
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}
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func (c *clientObject) String() string {
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return c.info.String()
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}
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func (c *clientObject) IndexGet(index tengo.Object) (res tengo.Object, err error) {
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field, ok := index.(*tengo.String)
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if !ok {
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return nil, tengo.ErrInvalidIndexType
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}
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switch field.Value {
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case "sdk":
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return &tengo.String{Value: strings.ToLower(c.info.Sdk.String())}, nil
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case "version":
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return &tengo.String{Value: c.info.Version}, nil
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case "protocol":
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return &tengo.Int{Value: int64(c.info.Protocol)}, nil
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case "os":
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return &tengo.String{Value: strings.ToLower(c.info.Os)}, nil
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case "os_version":
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return &tengo.String{Value: c.info.OsVersion}, nil
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case "device_model":
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return &tengo.String{Value: strings.ToLower(c.info.DeviceModel)}, nil
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case "browser":
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return &tengo.String{Value: strings.ToLower(c.info.Browser)}, nil
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case "browser_version":
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return &tengo.String{Value: c.info.BrowserVersion}, nil
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case "address":
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return &tengo.String{Value: c.info.Address}, nil
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}
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return &tengo.Undefined{}, nil
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}
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