Mercurial > libervia-backend
comparison libervia/backend/plugins/plugin_xep_0166/models.py @ 4231:e11b13418ba6
plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation:
Implement XEP-0343: Signaling WebRTC Data Channels in Jingle. The current version of the
XEP (0.3.1) has no implementation and contains some flaws. After discussing this on xsf@,
Daniel (from Conversations) mentioned that they had a sprint with Larma (from Dino) to
work on another version and provided me with this link:
https://gist.github.com/iNPUTmice/6c56f3e948cca517c5fb129016d99e74 . I have used it for my
implementation.
This implementation reuses work done on Jingle A/V call (notably XEP-0176 and XEP-0167
plugins), with adaptations. When used, XEP-0234 will not handle the file itself as it
normally does. This is because WebRTC has several implementations (browser for web
interface, GStreamer for others), and file/data must be handled directly by the frontend.
This is particularly important for web frontends, as the file is not sent from the backend
but from the end-user's browser device.
Among the changes, there are:
- XEP-0343 implementation.
- `file_send` bridge method now use serialised dict as output.
- New `BaseTransportHandler.is_usable` method which get content data and returns a boolean
(default to `True`) to tell if this transport can actually be used in this context (when
we are initiator). Used in webRTC case to see if call data are available.
- Support of `application` media type, and everything necessary to handle data channels.
- Better confirmation message, with file name, size and description when available.
- When file is accepted in preflight, it is specified in following `action_new` signal for
actual file transfer. This way, frontend can avoid the display or 2 confirmation
messages.
- XEP-0166: when not specified, default `content` name is now its index number instead of
a UUID. This follows the behaviour of browsers.
- XEP-0353: better handling of events such as call taken by another device.
- various other updates.
rel 441
author | Goffi <goffi@goffi.org> |
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date | Sat, 06 Apr 2024 12:57:23 +0200 |
parents | 0da563780ffc |
children | 79c8a70e1813 |
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4230:314d3c02bb67 | 4231:e11b13418ba6 |
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153 """ | 153 """ |
154 pass | 154 pass |
155 | 155 |
156 | 156 |
157 class BaseTransportHandler(abc.ABC): | 157 class BaseTransportHandler(abc.ABC): |
158 | |
159 def is_usable(self, client, content_data: "ContentData") -> bool: | |
160 """Return True if this transport is usable with given content | |
161 | |
162 This method provides a default implementation that always returns True. It can | |
163 be overridden in subclasses to provide custom usability logic. | |
164 | |
165 @param client: SatXMPPEntity instance | |
166 @param content_data: Jingle content data. | |
167 @return: True if the transport is usable with this content, False otherwise | |
168 """ | |
169 return True | |
158 | 170 |
159 @abc.abstractmethod | 171 @abc.abstractmethod |
160 def jingle_session_init( | 172 def jingle_session_init( |
161 self, | 173 self, |
162 client: SatXMPPEntity, | 174 client: SatXMPPEntity, |