413 lines
13 KiB
Go
413 lines
13 KiB
Go
package conf
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"net"
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gourl "net/url"
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"reflect"
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"regexp"
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"strings"
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"time"
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"github.com/bluenviron/gortsplib/v3/pkg/headers"
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"github.com/bluenviron/gortsplib/v3/pkg/url"
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)
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var rePathName = regexp.MustCompile(`^[0-9a-zA-Z_\-/\.~]+$`)
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// IsValidPathName checks if a path name is valid.
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func IsValidPathName(name string) error {
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if name == "" {
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return fmt.Errorf("cannot be empty")
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}
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if name[0] == '/' {
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return fmt.Errorf("can't begin with a slash")
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}
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if name[len(name)-1] == '/' {
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return fmt.Errorf("can't end with a slash")
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}
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if !rePathName.MatchString(name) {
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return fmt.Errorf("can contain only alphanumeric characters, underscore, dot, tilde, minus or slash")
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}
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return nil
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}
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// PathConf is a path configuration.
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type PathConf struct {
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Regexp *regexp.Regexp `json:"-"`
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// source
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Source string `json:"source"`
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// general
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SourceFingerprint string `json:"sourceFingerprint"`
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SourceOnDemand bool `json:"sourceOnDemand"`
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SourceOnDemandStartTimeout StringDuration `json:"sourceOnDemandStartTimeout"`
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SourceOnDemandCloseAfter StringDuration `json:"sourceOnDemandCloseAfter"`
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MaxReaders int `json:"maxReaders"`
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// authentication
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PublishUser Credential `json:"publishUser"`
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PublishPass Credential `json:"publishPass"`
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PublishIPs IPsOrCIDRs `json:"publishIPs"`
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ReadUser Credential `json:"readUser"`
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ReadPass Credential `json:"readPass"`
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ReadIPs IPsOrCIDRs `json:"readIPs"`
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// publisher
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OverridePublisher bool `json:"overridePublisher"`
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DisablePublisherOverride bool `json:"disablePublisherOverride"` // deprecated
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Fallback string `json:"fallback"`
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// rtsp
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SourceProtocol SourceProtocol `json:"sourceProtocol"`
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SourceAnyPortEnable bool `json:"sourceAnyPortEnable"`
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RtspRangeType RtspRangeType `json:"rtspRangeType"`
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RtspRangeStart string `json:"rtspRangeStart"`
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// redirect
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SourceRedirect string `json:"sourceRedirect"`
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// raspberry pi camera
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RPICameraCamID int `json:"rpiCameraCamID"`
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RPICameraWidth int `json:"rpiCameraWidth"`
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RPICameraHeight int `json:"rpiCameraHeight"`
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RPICameraHFlip bool `json:"rpiCameraHFlip"`
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RPICameraVFlip bool `json:"rpiCameraVFlip"`
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RPICameraBrightness float64 `json:"rpiCameraBrightness"`
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RPICameraContrast float64 `json:"rpiCameraContrast"`
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RPICameraSaturation float64 `json:"rpiCameraSaturation"`
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RPICameraSharpness float64 `json:"rpiCameraSharpness"`
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RPICameraExposure string `json:"rpiCameraExposure"`
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RPICameraAWB string `json:"rpiCameraAWB"`
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RPICameraDenoise string `json:"rpiCameraDenoise"`
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RPICameraShutter int `json:"rpiCameraShutter"`
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RPICameraMetering string `json:"rpiCameraMetering"`
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RPICameraGain float64 `json:"rpiCameraGain"`
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RPICameraEV float64 `json:"rpiCameraEV"`
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RPICameraROI string `json:"rpiCameraROI"`
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RPICameraHDR bool `json:"rpiCameraHDR"`
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RPICameraTuningFile string `json:"rpiCameraTuningFile"`
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RPICameraMode string `json:"rpiCameraMode"`
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RPICameraFPS float64 `json:"rpiCameraFPS"`
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RPICameraIDRPeriod int `json:"rpiCameraIDRPeriod"`
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RPICameraBitrate int `json:"rpiCameraBitrate"`
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RPICameraProfile string `json:"rpiCameraProfile"`
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RPICameraLevel string `json:"rpiCameraLevel"`
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RPICameraAfMode string `json:"rpiCameraAfMode"`
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RPICameraAfRange string `json:"rpiCameraAfRange"`
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RPICameraAfSpeed string `json:"rpiCameraAfSpeed"`
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RPICameraLensPosition float64 `json:"rpiCameraLensPosition"`
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RPICameraAfWindow string `json:"rpiCameraAfWindow"`
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RPICameraTextOverlayEnable bool `json:"rpiCameraTextOverlayEnable"`
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RPICameraTextOverlay string `json:"rpiCameraTextOverlay"`
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// external commands
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RunOnInit string `json:"runOnInit"`
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RunOnInitRestart bool `json:"runOnInitRestart"`
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RunOnDemand string `json:"runOnDemand"`
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RunOnDemandRestart bool `json:"runOnDemandRestart"`
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RunOnDemandStartTimeout StringDuration `json:"runOnDemandStartTimeout"`
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RunOnDemandCloseAfter StringDuration `json:"runOnDemandCloseAfter"`
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RunOnReady string `json:"runOnReady"`
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RunOnReadyRestart bool `json:"runOnReadyRestart"`
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RunOnRead string `json:"runOnRead"`
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RunOnReadRestart bool `json:"runOnReadRestart"`
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}
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func (pconf *PathConf) check(conf *Conf, name string) error {
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switch {
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case name == "all":
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pconf.Regexp = regexp.MustCompile("^.*$")
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case name == "" || name[0] != '~': // normal path
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err := IsValidPathName(name)
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if err != nil {
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return fmt.Errorf("invalid path name '%s': %s", name, err)
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}
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default: // regular expression-based path
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pathRegexp, err := regexp.Compile(name[1:])
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if err != nil {
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return fmt.Errorf("invalid regular expression: %s", name[1:])
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}
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pconf.Regexp = pathRegexp
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}
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switch {
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case pconf.Source == "publisher":
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case strings.HasPrefix(pconf.Source, "rtsp://") ||
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strings.HasPrefix(pconf.Source, "rtsps://"):
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if pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a RTSP source. use another path")
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}
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_, err := url.Parse(pconf.Source)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid URL", pconf.Source)
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}
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case strings.HasPrefix(pconf.Source, "rtmp://") ||
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strings.HasPrefix(pconf.Source, "rtmps://"):
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if pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a RTMP source. use another path")
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}
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u, err := gourl.Parse(pconf.Source)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid URL", pconf.Source)
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}
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if u.User != nil {
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pass, _ := u.User.Password()
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user := u.User.Username()
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if user != "" && pass == "" ||
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user == "" && pass != "" {
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return fmt.Errorf("username and password must be both provided")
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}
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}
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case strings.HasPrefix(pconf.Source, "http://") ||
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strings.HasPrefix(pconf.Source, "https://"):
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if pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a HLS source. use another path")
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}
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u, err := gourl.Parse(pconf.Source)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid URL", pconf.Source)
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}
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if u.Scheme != "http" && u.Scheme != "https" {
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return fmt.Errorf("'%s' is not a valid URL", pconf.Source)
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}
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if u.User != nil {
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pass, _ := u.User.Password()
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user := u.User.Username()
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if user != "" && pass == "" ||
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user == "" && pass != "" {
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return fmt.Errorf("username and password must be both provided")
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}
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}
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case strings.HasPrefix(pconf.Source, "udp://"):
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if pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a HLS source. use another path")
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}
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_, _, err := net.SplitHostPort(pconf.Source[len("udp://"):])
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if err != nil {
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return fmt.Errorf("'%s' is not a valid UDP URL", pconf.Source)
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}
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case strings.HasPrefix(pconf.Source, "srt://"):
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if pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression (or path 'all') cannot have a SRT source. use another path")
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}
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_, err := gourl.Parse(pconf.Source)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid URL", pconf.Source)
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}
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case strings.HasPrefix(pconf.Source, "whep://") ||
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strings.HasPrefix(pconf.Source, "wheps://"):
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if pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression (or path 'all') " +
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"cannot have a WebRTC/WHEP source. use another path")
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}
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_, err := gourl.Parse(pconf.Source)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid URL", pconf.Source)
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}
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case pconf.Source == "redirect":
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if pconf.SourceRedirect == "" {
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return fmt.Errorf("source redirect must be filled")
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}
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_, err := url.Parse(pconf.SourceRedirect)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid RTSP URL", pconf.SourceRedirect)
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}
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case pconf.Source == "rpiCamera":
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if pconf.Regexp != nil {
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return fmt.Errorf(
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"a path with a regular expression (or path 'all') cannot have 'rpiCamera' as source. use another path")
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}
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for otherName, otherPath := range conf.Paths {
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if otherPath != pconf && otherPath != nil &&
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otherPath.Source == "rpiCamera" && otherPath.RPICameraCamID == pconf.RPICameraCamID {
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return fmt.Errorf("'rpiCamera' with same camera ID %d is used as source in two paths, '%s' and '%s'",
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pconf.RPICameraCamID, name, otherName)
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}
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}
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default:
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return fmt.Errorf("invalid source: '%s'", pconf.Source)
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}
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if pconf.SourceOnDemand {
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if pconf.Source == "publisher" {
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return fmt.Errorf("'sourceOnDemand' is useless when source is 'publisher'")
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}
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}
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if pconf.DisablePublisherOverride {
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pconf.OverridePublisher = true
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}
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if pconf.Fallback != "" {
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if strings.HasPrefix(pconf.Fallback, "/") {
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err := IsValidPathName(pconf.Fallback[1:])
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if err != nil {
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return fmt.Errorf("'%s': %s", pconf.Fallback, err)
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}
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} else {
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_, err := url.Parse(pconf.Fallback)
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if err != nil {
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return fmt.Errorf("'%s' is not a valid RTSP URL", pconf.Fallback)
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}
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}
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}
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if (pconf.PublishUser != "" && pconf.PublishPass == "") ||
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(pconf.PublishUser == "" && pconf.PublishPass != "") {
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return fmt.Errorf("read username and password must be both filled")
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}
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if pconf.PublishUser != "" && pconf.Source != "publisher" {
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return fmt.Errorf("'publishUser' is useless when source is not 'publisher', since " +
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"the stream is not provided by a publisher, but by a fixed source")
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}
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if len(pconf.PublishIPs) > 0 && pconf.Source != "publisher" {
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return fmt.Errorf("'publishIPs' is useless when source is not 'publisher', since " +
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"the stream is not provided by a publisher, but by a fixed source")
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}
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if (pconf.ReadUser != "" && pconf.ReadPass == "") ||
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(pconf.ReadUser == "" && pconf.ReadPass != "") {
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return fmt.Errorf("read username and password must be both filled")
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}
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if contains(conf.AuthMethods, headers.AuthDigest) {
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if strings.HasPrefix(string(pconf.PublishUser), "sha256:") ||
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strings.HasPrefix(string(pconf.PublishPass), "sha256:") ||
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strings.HasPrefix(string(pconf.ReadUser), "sha256:") ||
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strings.HasPrefix(string(pconf.ReadPass), "sha256:") {
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return fmt.Errorf("hashed credentials can't be used when the digest auth method is available")
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}
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}
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if conf.ExternalAuthenticationURL != "" {
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if pconf.PublishUser != "" ||
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len(pconf.PublishIPs) > 0 ||
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pconf.ReadUser != "" ||
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len(pconf.ReadIPs) > 0 {
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return fmt.Errorf("credentials or IPs can't be used together with 'externalAuthenticationURL'")
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}
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}
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if pconf.RunOnInit != "" && pconf.Regexp != nil {
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return fmt.Errorf("a path with a regular expression does not support option 'runOnInit'; use another path")
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}
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if pconf.RunOnDemand != "" && pconf.Source != "publisher" {
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return fmt.Errorf("'runOnDemand' can be used only when source is 'publisher'")
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}
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return nil
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}
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// Equal checks whether two PathConfs are equal.
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func (pconf *PathConf) Equal(other *PathConf) bool {
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return reflect.DeepEqual(pconf, other)
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}
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// Clone clones the configuration.
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func (pconf PathConf) Clone() *PathConf {
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enc, err := json.Marshal(pconf)
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if err != nil {
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panic(err)
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}
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var dest PathConf
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err = json.Unmarshal(enc, &dest)
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if err != nil {
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panic(err)
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}
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return &dest
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}
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// HasStaticSource checks whether the path has a static source.
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func (pconf PathConf) HasStaticSource() bool {
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return strings.HasPrefix(pconf.Source, "rtsp://") ||
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strings.HasPrefix(pconf.Source, "rtsps://") ||
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strings.HasPrefix(pconf.Source, "rtmp://") ||
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strings.HasPrefix(pconf.Source, "rtmps://") ||
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strings.HasPrefix(pconf.Source, "http://") ||
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strings.HasPrefix(pconf.Source, "https://") ||
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strings.HasPrefix(pconf.Source, "udp://") ||
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strings.HasPrefix(pconf.Source, "srt://") ||
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strings.HasPrefix(pconf.Source, "whep://") ||
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strings.HasPrefix(pconf.Source, "wheps://") ||
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pconf.Source == "rpiCamera"
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}
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// HasOnDemandStaticSource checks whether the path has a on demand static source.
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func (pconf PathConf) HasOnDemandStaticSource() bool {
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return pconf.HasStaticSource() && pconf.SourceOnDemand
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}
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// HasOnDemandPublisher checks whether the path has a on-demand publisher.
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func (pconf PathConf) HasOnDemandPublisher() bool {
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return pconf.RunOnDemand != ""
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}
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// UnmarshalJSON implements json.Unmarshaler. It is used to set default values.
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func (pconf *PathConf) UnmarshalJSON(b []byte) error {
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// source
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pconf.Source = "publisher"
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// general
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pconf.SourceOnDemandStartTimeout = 10 * StringDuration(time.Second)
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pconf.SourceOnDemandCloseAfter = 10 * StringDuration(time.Second)
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// publisher
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pconf.OverridePublisher = true
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// raspberry pi camera
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pconf.RPICameraWidth = 1920
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pconf.RPICameraHeight = 1080
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pconf.RPICameraContrast = 1
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pconf.RPICameraSaturation = 1
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pconf.RPICameraSharpness = 1
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pconf.RPICameraFPS = 30
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pconf.RPICameraIDRPeriod = 60
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pconf.RPICameraBitrate = 1000000
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pconf.RPICameraProfile = "main"
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pconf.RPICameraLevel = "4.1"
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pconf.RPICameraTextOverlay = "%Y-%m-%d %H:%M:%S - MediaMTX"
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// external commands
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pconf.RunOnDemandStartTimeout = 10 * StringDuration(time.Second)
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pconf.RunOnDemandCloseAfter = 10 * StringDuration(time.Second)
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type alias PathConf
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d := json.NewDecoder(bytes.NewReader(b))
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d.DisallowUnknownFields()
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return d.Decode((*alias)(pconf))
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}
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