net/webrtc: add whipserversrc

Implement new signaller WhipServerSignaller
 - an http server using 'warp'
 - handlers for the POST, OPTIONS, PATCH and DELETE
 - fixed path `/whip/endpoint` as the URI
 - fixed value 'whip-client' as the producer peer id
 - fixed resource url `/whip/resource/whip-client`

Derive whipserversrc element from BaseWebRTCSrc
 - implement constructed method for ObjectImpl to set
  non-default signaller, i.e., WhipServerSignaller
 - bind the properties stun-server and turn-servers to those on
   the Signaller

Connect to 'webrtcbin-ready' signal in the constructor of WhipServerSignaller
 - it will be emitted by the webrtcsrc when the webrtcbin element is ready
 - the closure for this signal will in turn connect to webrtcbin's ice-gathering-state
   and perform send with the answer sdp via the channel
 - the WhipServer will hold its HTTP response in POST handler until this signal
   is received or timeout which happens early

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1284>

1 files changed, 106 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index e9dc3d32f..18a328909 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1209,6 +1209,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "crossbeam-channel"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a33c2bf77f2df06183c3aa30d1e96c0695a313d4f9c453cc3762a6db39f99200"
+dependencies = [
+ "cfg-if",
+ "crossbeam-utils",
+]
+
+[[package]]
 name = "crossbeam-deque"
 version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2799,6 +2809,7 @@ dependencies = [
  "aws-types",
  "chrono",
  "clap",
+ "crossbeam-channel",
  "data-encoding",
  "fastrand",
  "futures",
@@ -2831,6 +2842,7 @@ dependencies = [
  "url",
  "url-escape",
  "uuid",
+ "warp",
 ]
 
 [[package]]
@@ -4236,6 +4248,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
 [[package]]
+name = "mime_guess"
+version = "2.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4192263c238a5f0d0c6bfd21f336a313a4ce1c450542449ca191bb657b4642ef"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
+[[package]]
 name = "minimal-lexical"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -4275,6 +4297,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "956787520e75e9bd233246045d19f42fb73242759cc57fba9611d940ae96d4b0"
 
 [[package]]
+name = "multer"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "01acbdc23469fd8fe07ab135923371d5f5a422fbf9c522158677c8eb15bc51c2"
+dependencies = [
+ "bytes",
+ "encoding_rs",
+ "futures-util",
+ "http",
+ "httparse",
+ "log",
+ "memchr",
+ "mime",
+ "spin 0.9.8",
+ "version_check",
+]
+
+[[package]]
 name = "multimap"
 version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -4727,6 +4767,26 @@ dependencies = [
 ]
 
 [[package]]
+name = "pin-project"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fda4ed1c6c173e3fc7a83629421152e01d7b1f9b7f65fb301e490e8cfc656422"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4359fd9c9171ec6e8c62926d6faaf553a8dc3f64e1507e76da7911b4f6a04405"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.39",
+]
+
+[[package]]
 name = "pin-project-lite"
 version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -5422,6 +5482,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "scoped-tls"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
+
+[[package]]
 name = "scopeguard"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -6261,6 +6327,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
 [[package]]
+name = "unicase"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d2d4dafb69621809a81864c9c1b864479e1235c0dd4e199924b9742439ed89"
+dependencies = [
+ "version_check",
+]
+
+[[package]]
 name = "unicode-bidi"
 version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -6438,6 +6513,37 @@ dependencies = [
 ]
 
 [[package]]
+name = "warp"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1e92e22e03ff1230c03a1a8ee37d2f89cd489e2e541b7550d6afad96faed169"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "headers",
+ "http",
+ "hyper",
+ "log",
+ "mime",
+ "mime_guess",
+ "multer",
+ "percent-encoding",
+ "pin-project",
+ "rustls-pemfile",
+ "scoped-tls",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "tokio",
+ "tokio-stream",
+ "tokio-tungstenite",
+ "tokio-util",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"