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annotate libervia/backend/plugins/plugin_xep_0167/mapping.py @ 4240:79c8a70e1813

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backend, frontend: prepare remote control: This is a series of changes necessary to prepare the implementation of remote control feature: - XEP-0166: add a `priority` attribute to `ApplicationData`: this is needed when several applications are working in a same session, to know which one must be handled first. Will be used to make Remote Control have precedence over Call content. - XEP-0166: `_call_plugins` is now async and is not used with `DeferredList` anymore: the benefit to have methods called in parallels is very low, and it cause a lot of trouble as we can't predict order. Methods are now called sequentially so workflow can be predicted. - XEP-0167: fix `senders` XMPP attribute <=> SDP mapping - XEP-0234: preflight acceptance key is now `pre-accepted` instead of `file-accepted`, so the same key can be used with other jingle applications. - XEP-0167, XEP-0343: move some method to XEP-0167 - XEP-0353: use new `priority` feature to call preflight methods of applications according to it. - frontend (webrtc): refactor the sources/sink handling with a more flexible mechanism based on Pydantic models. It is now possible to have has many Data Channel as necessary, to have them in addition to A/V streams, to specify manually GStreamer sources and sinks, etc. - frontend (webrtc): rework of the pipeline to reduce latency. - frontend: new `portal_desktop` method. Screenshare portal handling has been moved there, and RemoteDesktop portal has been added. - frontend (webrtc): fix `extract_ufrag_pwd` method. rel 436
author Goffi <goffi@goffi.org>
date Sat, 11 May 2024 13:52:41 +0200
parents e11b13418ba6
children 0d7bb4df2343
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1 #!/usr/bin/env python3
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2
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3 # Libervia: an XMPP client
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4 # Copyright (C) 2009-2023 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 import base64
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20 from typing import Any, Dict, Optional
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21
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22 from twisted.words.xish import domish
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23
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24 from libervia.backend.core.constants import Const as C
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25 from libervia.backend.core.log import getLogger
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26
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27 from .constants import NS_JINGLE_RTP
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28
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29 log = getLogger(__name__)
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30
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31 host = None
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34 def senders_to_sdp(senders: str, session: dict) -> str:
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35 """Returns appropriate SDP attribute corresponding to Jingle senders attribute"""
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36 if senders == "both":
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37 return "a=sendrecv"
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38 elif senders == "none":
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39 return "a=inactive"
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40 elif session["role"] != senders:
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41 return "a=sendonly"
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42 else:
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43 return "a=recvonly"
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44
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45
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46 def generate_sdp_from_session(
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47 session: dict, local: bool = False, port: int = 9
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48 ) -> str:
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49 """Generate an SDP string from session data.
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50
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51 @param session: A dictionary containing the session data. It should have the
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52 following structure:
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53
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54 {
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55 "contents": {
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56 "<content_id>": {
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57 "application_data": {
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58 "media": <str: "audio" or "video">,
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59 "local_data": <media_data dict>,
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60 "peer_data": <media_data dict>,
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61 ...
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62 },
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63 "transport_data": {
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64 "local_ice_data": <ice_data dict>,
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65 "peer_ice_data": <ice_data dict>,
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66 ...
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67 },
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68 ...
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69 },
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70 ...
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71 }
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72 }
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73 @param local: A boolean value indicating whether to generate SDP for the local or
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74 peer entity. If True, the method will generate SDP for the local entity,
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75 otherwise for the peer entity. Generally the local SDP is received from frontends
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76 and not needed in backend, except for debugging purpose.
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77 @param port: The preferred port for communications.
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78
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79 @return: The generated SDP string.
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80 """
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81 contents = session["contents"]
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82 sdp_lines = ["v=0"]
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83
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84 # Add originator (o=) line after the version (v=) line
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85 username = base64.b64encode(session["local_jid"].full().encode()).decode()
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86 session_id = "1" # Increment this for each session
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87 session_version = "1" # Increment this when the session is updated
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88 network_type = "IN"
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89 address_type = "IP4"
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90 connection_address = "0.0.0.0"
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91 o_line = (
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92 f"o={username} {session_id} {session_version} {network_type} {address_type} "
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93 f"{connection_address}"
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94 )
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95 sdp_lines.append(o_line)
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96
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97 # Add the mandatory "s=" and t=" lines
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98 sdp_lines.append("s=-")
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99 sdp_lines.append("t=0 0")
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100
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101 # stream direction
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102 all_senders = {c["senders"] for c in session["contents"].values()}
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103 # if we don't have a common senders for all contents, we set them at media level
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104 senders = all_senders.pop() if len(all_senders) == 1 else None
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105
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106 sdp_lines.append("a=msid-semantic:WMS *")
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107 sdp_lines.append("a=ice-options:trickle")
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108
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109 host.trigger.point(
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110 "XEP-0167_generate_sdp_session",
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111 session,
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112 local,
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113 sdp_lines,
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114 triggers_no_cancel=True
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115 )
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116 content_names = sorted(contents)
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117
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118 for content_name, content_data in [(n, contents[n]) for n in content_names]: # contents.items():
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119 app_data_key = "local_data" if local else "peer_data"
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120 application_data = content_data["application_data"]
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121 media_data = application_data[app_data_key]
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122 media = application_data["media"]
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123 payload_types = media_data.get("payload_types", {})
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124
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
125 # Generate m= line
4231
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
126 if media == "application":
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
127 transport = "UDP/DTLS/SCTP"
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
128 m_line = f"m={media} {port} {transport} webrtc-datachannel"
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
129 else:
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
130 transport = "UDP/TLS/RTP/SAVPF"
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
131 payload_type_ids = [str(pt_id) for pt_id in payload_types]
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
132 m_line = f"m={media} {port} {transport} {' '.join(payload_type_ids)}"
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
133 sdp_lines.append(m_line)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
134
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
135 sdp_lines.append(f"c={network_type} {address_type} {connection_address}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
136
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
137 sdp_lines.append(f"a=mid:{content_name}")
4121
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
138 if senders is not None:
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
139 sdp_lines.append(senders_to_sdp(senders, session))
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
140
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
141 # stream direction
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
142 if senders is None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
143 sdp_lines.append(senders_to_sdp(content_data["senders"], session))
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
144
4121
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
145
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
146 # Generate a= lines for rtpmap and fmtp
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
147 for pt_id, pt in payload_types.items():
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
148 name = pt["name"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
149 clockrate = pt.get("clockrate", "")
4121
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
150
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
151 # Check if "channels" is in pt and append it to the line
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
152 channels = pt.get("channels")
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
153 if channels:
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
154 sdp_lines.append(f"a=rtpmap:{pt_id} {name}/{clockrate}/{channels}")
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
155 else:
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
156 sdp_lines.append(f"a=rtpmap:{pt_id} {name}/{clockrate}")
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
157
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
158 if "ptime" in pt:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
159 sdp_lines.append(f"a=ptime:{pt['ptime']}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
160
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
161 if "parameters" in pt:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
162 fmtp_params = ";".join([f"{k}={v}" for k, v in pt["parameters"].items()])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
163 sdp_lines.append(f"a=fmtp:{pt_id} {fmtp_params}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
164
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
165 if "bandwidth" in media_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
166 sdp_lines.append(f"a=b:{media_data['bandwidth']}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
167
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
168 if media_data.get("rtcp-mux"):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
169 sdp_lines.append("a=rtcp-mux")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
170
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
171 # Generate a= lines for fingerprint, ICE ufrag, pwd and candidates
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
172 ice_data_key = "local_ice_data" if local else "peer_ice_data"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
173 ice_data = content_data["transport_data"][ice_data_key]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
174
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
175 if "fingerprint" in ice_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
176 fingerprint_data = ice_data["fingerprint"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
177 sdp_lines.append(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
178 f"a=fingerprint:{fingerprint_data['hash']} "
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
179 f"{fingerprint_data['fingerprint']}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
180 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
181 sdp_lines.append(f"a=setup:{fingerprint_data['setup']}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
182
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
183 sdp_lines.append(f"a=ice-ufrag:{ice_data['ufrag']}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
184 sdp_lines.append(f"a=ice-pwd:{ice_data['pwd']}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
185
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
186 for candidate in ice_data["candidates"]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
187 foundation = candidate["foundation"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
188 component_id = candidate["component_id"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
189 transport = candidate["transport"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
190 priority = candidate["priority"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
191 address = candidate["address"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
192 candidate_port = candidate["port"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
193 candidate_type = candidate["type"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
194
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
195 candidate_line = (
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
196 f"a=candidate:{foundation} {component_id} {transport} {priority} "
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
197 f"{address} {candidate_port} typ {candidate_type}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
198 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
199
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
200 if "rel_addr" in candidate and "rel_port" in candidate:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
201 candidate_line += (
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
202 f" raddr {candidate['rel_addr']} rport {candidate['rel_port']}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
203 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
204
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
205 if "generation" in candidate:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
206 candidate_line += f" generation {candidate['generation']}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
207
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
208 if "network" in candidate:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
209 candidate_line += f" network {candidate['network']}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
210
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
211 sdp_lines.append(candidate_line)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
212
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
213 # Generate a= lines for encryption
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
214 if "encryption" in media_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
215 for enc_data in media_data["encryption"]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
216 crypto_suite = enc_data["crypto-suite"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
217 key_params = enc_data["key-params"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
218 session_params = enc_data.get("session-params", "")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
219 tag = enc_data["tag"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
220
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
221 crypto_line = f"a=crypto:{tag} {crypto_suite} {key_params}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
222 if session_params:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
223 crypto_line += f" {session_params}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
224 sdp_lines.append(crypto_line)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
225
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
226
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
227 host.trigger.point(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
228 "XEP-0167_generate_sdp_content",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
229 session,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
230 local,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
231 content_name,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
232 content_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
233 sdp_lines,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
234 application_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
235 app_data_key,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
236 media_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
237 media,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
238 triggers_no_cancel=True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
239 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
240
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
241 # Combine SDP lines and return the result
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
242 return "\r\n".join(sdp_lines) + "\r\n"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
243
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
244
4240
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
245 def parse_sdp(sdp: str, role: str) -> dict:
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
246 """Parse SDP string.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
247
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
248 @param sdp: The SDP string to parse.
4240
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
249 @param role: Role of the entities which produces the SDP.
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
250 @return: A dictionary containing parsed session data.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
251 """
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
252 # FIXME: to be removed once host is accessible from global var
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
253 assert host is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
254 lines = sdp.strip().split("\r\n")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
255 # session metadata
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
256 metadata: Dict[str, Any] = {}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
257 call_data = {"metadata": metadata}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
258
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
259 media_type = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
260 media_data: Optional[Dict[str, Any]] = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
261 application_data: Optional[Dict[str, Any]] = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
262 transport_data: Optional[Dict[str, Any]] = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
263 fingerprint_data: Optional[Dict[str, str]] = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
264 ice_pwd: Optional[str] = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
265 ice_ufrag: Optional[str] = None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
266 payload_types: Optional[Dict[int, dict]] = None
4240
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
267 # default value, will be be modified by SDP
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
268 senders: str = "both"
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
269
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
270 for line in lines:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
271 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
272 parts = line.split()
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
273 prefix = parts[0][:2] # Extract the 'a=', 'm=', etc., prefix
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
274 parts[0] = parts[0][2:] # Remove the prefix from the first element
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
275
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
276 if prefix == "m=":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
277 media_type = parts[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
278 port = int(parts[1])
4231
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
279 application_data = {"media": media_type}
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
280 if media_type in ("video", "audio"):
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
281 payload_types = application_data["payload_types"] = {}
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
282 for payload_type_id in [int(pt_id) for pt_id in parts[3:]]:
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
283 payload_type = {"id": payload_type_id}
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
284 payload_types[payload_type_id] = payload_type
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
285 elif media_type == "application":
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
286 if parts[3] != "webrtc-datachannel":
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
287 raise NotImplementedError(
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
288 f"{media_type!r} application is not supported"
e11b13418ba6 plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Goffi <goffi@goffi.org>
parents: 4121
diff changeset
289 )
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
290
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
291 transport_data = {"port": port}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
292 if fingerprint_data is not None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
293 transport_data["fingerprint"] = fingerprint_data
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
294 if ice_pwd is not None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
295 transport_data["pwd"] = ice_pwd
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
296 if ice_ufrag is not None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
297 transport_data["ufrag"] = ice_ufrag
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
298 media_data = call_data[media_type] = {
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
299 "application_data": application_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
300 "transport_data": transport_data,
4240
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
301 "senders": senders
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
302 }
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
303
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
304 elif prefix == "a=":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
305 if ":" in parts[0]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
306 attribute, parts[0] = parts[0].split(":", 1)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
307 else:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
308 attribute = parts[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
309
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
310 if (
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
311 media_type is None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
312 or application_data is None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
313 or transport_data is None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
314 ) and not (
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
315 attribute
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
316 in (
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
317 "sendrecv",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
318 "sendonly",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
319 "recvonly",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
320 "inactive",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
321 "fingerprint",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
322 "group",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
323 "ice-options",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
324 "msid-semantic",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
325 "ice-pwd",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
326 "ice-ufrag",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
327 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
328 ):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
329 log.warning(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
330 "Received attribute before media description, this is "
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
331 f"invalid: {line}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
332 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
333 continue
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
334
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
335 if attribute == "mid":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
336 assert media_data is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
337 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
338 media_data["id"] = parts[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
339 except IndexError:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
340 log.warning(f"invalid media ID: {line}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
341
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
342 elif attribute == "rtpmap":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
343 assert application_data is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
344 assert payload_types is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
345 pt_id = int(parts[0])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
346 codec_info = parts[1].split("/")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
347 codec = codec_info[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
348 clockrate = int(codec_info[1])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
349 payload_type = {
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
350 "id": pt_id,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
351 "name": codec,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
352 "clockrate": clockrate,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
353 }
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
354 # Handle optional channel count
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
355 if len(codec_info) > 2:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
356 channels = int(codec_info[2])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
357 payload_type["channels"] = channels
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
358
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
359 payload_types.setdefault(pt_id, {}).update(payload_type)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
360
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
361 elif attribute == "fmtp":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
362 assert payload_types is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
363 pt_id = int(parts[0])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
364 params = parts[1].split(";")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
365 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
366 payload_type = payload_types[pt_id]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
367 except KeyError:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
368 raise ValueError(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
369 f"Can find content type {pt_id}, ignoring: {line}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
370 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
371
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
372 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
373 payload_type["parameters"] = {
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
374 name: value
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
375 for name, value in (param.split("=") for param in params)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
376 }
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
377 except ValueError:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
378 payload_type.setdefault("exra-parameters", []).extend(params)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
379
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
380 elif attribute == "candidate":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
381 assert transport_data is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
382 candidate = {
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
383 "foundation": parts[0],
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
384 "component_id": int(parts[1]),
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
385 "transport": parts[2],
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
386 "priority": int(parts[3]),
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
387 "address": parts[4],
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
388 "port": int(parts[5]),
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
389 "type": parts[7],
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
390 }
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
391
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
392 for part in parts[8:]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
393 if part == "raddr":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
394 candidate["rel_addr"] = parts[parts.index(part) + 1]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
395 elif part == "rport":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
396 candidate["rel_port"] = int(parts[parts.index(part) + 1])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
397 elif part == "generation":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
398 candidate["generation"] = parts[parts.index(part) + 1]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
399 elif part == "network":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
400 candidate["network"] = parts[parts.index(part) + 1]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
401
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
402 transport_data.setdefault("candidates", []).append(candidate)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
403
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
404 elif attribute == "fingerprint":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
405 algorithm, fingerprint = parts[0], parts[1]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
406 fingerprint_data = {"hash": algorithm, "fingerprint": fingerprint}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
407 if transport_data is not None:
4121
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
408 transport_data.setdefault("fingerprint", {}).update(
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
409 fingerprint_data
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
410 )
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
411 elif attribute == "setup":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
412 assert transport_data is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
413 setup = parts[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
414 transport_data.setdefault("fingerprint", {})["setup"] = setup
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
415
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
416 elif attribute == "b":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
417 assert application_data is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
418 bandwidth = int(parts[0])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
419 application_data["bandwidth"] = bandwidth
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
420
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
421 elif attribute == "rtcp-mux":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
422 assert application_data is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
423 application_data["rtcp-mux"] = True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
424
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
425 elif attribute == "ice-ufrag":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
426 if transport_data is not None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
427 transport_data["ufrag"] = parts[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
428
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
429 elif attribute == "ice-pwd":
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
430 if transport_data is not None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
431 transport_data["pwd"] = parts[0]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
432
4240
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
433 elif attribute in ("sendrecv", "sendonly", "recvonly", "inactive"):
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
434 if attribute == "sendrecv":
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
435 value = "both"
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
436 elif attribute == "sendonly":
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
437 value = role
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
438 elif attribute == "recvonly":
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
439 value = "responder" if role == "initiator" else "initiator"
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
440 else:
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
441 value = "none"
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
442
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
443 if application_data is None:
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
444 # this is a global value, we use is as new default value
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
445 senders = value
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
446 else:
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
447 # this is a media specific value, it will replace the one used as
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
448 # default for this media
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
449 application_data["senders"] = value
79c8a70e1813 backend, frontend: prepare remote control:
Goffi <goffi@goffi.org>
parents: 4231
diff changeset
450
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
451 host.trigger.point(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
452 "XEP-0167_parse_sdp_a",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
453 attribute,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
454 parts,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
455 call_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
456 metadata,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
457 media_type,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
458 application_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
459 transport_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
460 triggers_no_cancel=True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
461 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
462
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
463 except ValueError as e:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
464 raise ValueError(f"Could not parse line. Invalid format ({e}): {line}") from e
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
465 except IndexError as e:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
466 raise IndexError(f"Incomplete line. Missing data: {line}") from e
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
467
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
468 # we remove private data (data starting with _, used by some plugins (e.g. XEP-0294)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
469 # to handle session data at media level))
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
470 for key in [k for k in call_data if k.startswith("_")]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
471 log.debug(f"cleaning remaining private data {key!r}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
472 del call_data[key]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
473
4121
b2709504586a plugin XEP-0167: mapping adjustments:
Goffi <goffi@goffi.org>
parents: 4116
diff changeset
474 # FIXME: is this really useful?
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
475 # ICE candidates may only be specified for the first media, this
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
476 # duplicate the candidate for the other in this case
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
477 all_media = {k:v for k,v in call_data.items() if k in ("audio", "video")}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
478 if len(all_media) > 1 and not all(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
479 "candidates" in c["transport_data"] for c in all_media.values()
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
480 ):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
481 first_content = next(iter(all_media.values()))
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
482 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
483 ice_candidates = first_content["transport_data"]["candidates"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
484 except KeyError:
4116
23fa52acf72c plugin XEP-0167, XEP-0176: transport-info and ICE candidate sending are delayed if session is not active yet
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
485 ice_candidates = []
23fa52acf72c plugin XEP-0167, XEP-0176: transport-info and ICE candidate sending are delayed if session is not active yet
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
486 for idx, content in enumerate(all_media.values()):
23fa52acf72c plugin XEP-0167, XEP-0176: transport-info and ICE candidate sending are delayed if session is not active yet
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
487 if idx == 0:
23fa52acf72c plugin XEP-0167, XEP-0176: transport-info and ICE candidate sending are delayed if session is not active yet
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
488 continue
23fa52acf72c plugin XEP-0167, XEP-0176: transport-info and ICE candidate sending are delayed if session is not active yet
Goffi <goffi@goffi.org>
parents: 4071
diff changeset
489 content["transport_data"].setdefault("candidates", ice_candidates)
4056
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
490
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
491 return call_data
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
492
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
493
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
494 def build_description(media: str, media_data: dict, session: dict) -> domish.Element:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
495 """Generate <description> element from media data
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
496
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
497 @param media: media type ("audio" or "video")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
498
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
499 @param media_data: A dictionary containing the media description data.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
500 The keys and values are described below:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
501
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
502 - ssrc (str, optional): The synchronization source identifier.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
503 - payload_types (list): A list of dictionaries, each representing a payload
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
504 type.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
505 Each dictionary may contain the following keys:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
506 - channels (str, optional): Number of audio channels.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
507 - clockrate (str, optional): Clock rate of the media.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
508 - id (str): The unique identifier of the payload type.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
509 - maxptime (str, optional): Maximum packet time.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
510 - name (str, optional): Name of the codec.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
511 - ptime (str, optional): Preferred packet time.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
512 - parameters (dict, optional): A dictionary of codec-specific parameters.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
513 Key-value pairs represent the parameter name and value, respectively.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
514 - bandwidth (str, optional): The bandwidth type.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
515 - rtcp-mux (bool, optional): Indicates whether RTCP multiplexing is enabled or
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
516 not.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
517 - encryption (list, optional): A list of dictionaries, each representing an
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
518 encryption method.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
519 Each dictionary may contain the following keys:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
520 - tag (str): The unique identifier of the encryption method.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
521 - crypto-suite (str): The encryption suite in use.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
522 - key-params (str): Key parameters for the encryption suite.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
523 - session-params (str, optional): Session parameters for the encryption
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
524 suite.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
525
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
526 @return: A <description> element.
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
527 """
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
528 # FIXME: to be removed once host is accessible from global var
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
529 assert host is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
530
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
531 desc_elt = domish.Element((NS_JINGLE_RTP, "description"), attribs={"media": media})
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
532
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
533 for pt_id, pt_data in media_data.get("payload_types", {}).items():
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
534 payload_type_elt = desc_elt.addElement("payload-type")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
535 payload_type_elt["id"] = str(pt_id)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
536 for attr in ["channels", "clockrate", "maxptime", "name", "ptime"]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
537 if attr in pt_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
538 payload_type_elt[attr] = str(pt_data[attr])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
539
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
540 if "parameters" in pt_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
541 for param_name, param_value in pt_data["parameters"].items():
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
542 param_elt = payload_type_elt.addElement("parameter")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
543 param_elt["name"] = param_name
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
544 param_elt["value"] = param_value
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
545 host.trigger.point(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
546 "XEP-0167_build_description_payload_type",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
547 desc_elt,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
548 media_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
549 pt_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
550 payload_type_elt,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
551 triggers_no_cancel=True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
552 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
553
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
554 if "bandwidth" in media_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
555 bandwidth_elt = desc_elt.addElement("bandwidth")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
556 bandwidth_elt["type"] = media_data["bandwidth"]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
557
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
558 if media_data.get("rtcp-mux"):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
559 desc_elt.addElement("rtcp-mux")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
560
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
561 # Add encryption element
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
562 if "encryption" in media_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
563 encryption_elt = desc_elt.addElement("encryption")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
564 # we always want require encryption if the `encryption` data is present
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
565 encryption_elt["required"] = "1"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
566 for enc_data in media_data["encryption"]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
567 crypto_elt = encryption_elt.addElement("crypto")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
568 for attr in ["tag", "crypto-suite", "key-params", "session-params"]:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
569 if attr in enc_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
570 crypto_elt[attr] = enc_data[attr]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
571
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
572 host.trigger.point(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
573 "XEP-0167_build_description",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
574 desc_elt,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
575 media_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
576 session,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
577 triggers_no_cancel=True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
578 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
579
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
580 return desc_elt
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
581
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
582
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
583 def parse_description(desc_elt: domish.Element) -> dict:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
584 """Parse <desciption> to a dict
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
585
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
586 @param desc_elt: <description> element
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
587 @return: media data as in [build_description]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
588 """
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
589 # FIXME: to be removed once host is accessible from global var
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
590 assert host is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
591
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
592 media_data = {}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
593 if desc_elt.hasAttribute("ssrc"):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
594 media_data.setdefault("ssrc", {})[desc_elt["ssrc"]] = {}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
595
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
596 payload_types = {}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
597 for payload_type_elt in desc_elt.elements(NS_JINGLE_RTP, "payload-type"):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
598 payload_type_data = {
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
599 attr: payload_type_elt[attr]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
600 for attr in [
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
601 "channels",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
602 "clockrate",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
603 "maxptime",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
604 "name",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
605 "ptime",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
606 ]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
607 if payload_type_elt.hasAttribute(attr)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
608 }
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
609 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
610 pt_id = int(payload_type_elt["id"])
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
611 except KeyError:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
612 log.warning(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
613 f"missing ID in payload type, ignoring: {payload_type_elt.toXml()}"
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
614 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
615 continue
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
616
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
617 parameters = {}
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
618 for param_elt in payload_type_elt.elements(NS_JINGLE_RTP, "parameter"):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
619 param_name = param_elt.getAttribute("name")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
620 param_value = param_elt.getAttribute("value")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
621 if not param_name or param_value is None:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
622 log.warning(f"invalid parameter: {param_elt.toXml()}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
623 continue
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
624 parameters[param_name] = param_value
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
625
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
626 if parameters:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
627 payload_type_data["parameters"] = parameters
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
628
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
629 host.trigger.point(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
630 "XEP-0167_parse_description_payload_type",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
631 desc_elt,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
632 media_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
633 payload_type_elt,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
634 payload_type_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
635 triggers_no_cancel=True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
636 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
637 payload_types[pt_id] = payload_type_data
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
638
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
639 # bandwidth
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
640 media_data["payload_types"] = payload_types
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
641 try:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
642 bandwidth_elt = next(desc_elt.elements(NS_JINGLE_RTP, "bandwidth"))
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
643 except StopIteration:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
644 pass
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
645 else:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
646 bandwidth = bandwidth_elt.getAttribute("type")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
647 if not bandwidth:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
648 log.warning(f"invalid bandwidth: {bandwidth_elt.toXml}")
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
649 else:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
650 media_data["bandwidth"] = bandwidth
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
651
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
652 # rtcp-mux
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
653 rtcp_mux_elt = next(desc_elt.elements(NS_JINGLE_RTP, "rtcp-mux"), None)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
654 media_data["rtcp-mux"] = rtcp_mux_elt is not None
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
655
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
656 # Encryption
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
657 encryption_data = []
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
658 encryption_elt = next(desc_elt.elements(NS_JINGLE_RTP, "encryption"), None)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
659 if encryption_elt:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
660 media_data["encryption_required"] = C.bool(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
661 encryption_elt.getAttribute("required", C.BOOL_FALSE)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
662 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
663
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
664 for crypto_elt in encryption_elt.elements(NS_JINGLE_RTP, "crypto"):
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
665 crypto_data = {
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
666 attr: crypto_elt[attr]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
667 for attr in [
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
668 "crypto-suite",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
669 "key-params",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
670 "session-params",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
671 "tag",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
672 ]
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
673 if crypto_elt.hasAttribute(attr)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
674 }
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
675 encryption_data.append(crypto_data)
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
676
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
677 if encryption_data:
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
678 media_data["encryption"] = encryption_data
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
679
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
680 host.trigger.point(
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
681 "XEP-0167_parse_description",
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
682 desc_elt,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
683 media_data,
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
684 triggers_no_cancel=True
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
685 )
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
686
1c4f4aa36d98 plugin XEP-0167: Jingle RTP Sessions implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
687 return media_data