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Author SHA1 Message Date
Arnaud Rebillout
56e636b60c examples: gtk: Add example to illustrate usage of accept-certificate with souphttpsrc
The aim of this example is to show how to make use of the accept-certificate
signal from a GTK GUI, and prompt user in case of invalid certificate.

There are two subtleties to be aware of:

1. the signal is emitted from the GStreamer streaming thread, therefore the
   caller can't modify the GUI straight away, instead they must do it from the
   main thread (eg. by using g_idle_add())

2. in case of a redirection, then a TLS failure, the caller won't know
   about the redirection. Actually, it's possible to be notified of the
   redirection by watching "message:element" and inspecting http-headers,
   but even in that case, the signal will be received *after* the signal
   "accept-certificate" (even though the redirection happened *before*).

This second point is tricky. It's not uncommon to have servers that redirect
http requests to https. So errors of the type "HTTP -> HTTPS -> TLS error"
happen, and if the caller doesn't care about redirection, they might prompt
users with a message such as "TLS error for URL http://...", which wouldn't make
much sense.

This example shows how to handle that right, by connecting to the signal
"message:element", inspecting the http-headers, and in case of redirection,
updating the TLS error dialog to indicate that the request was redirected.

Here are a few examples of streams that exhibit TLS failure (at the time of
this commit, of course):
* https://radiolive.sanjavier.es:8443/stream: unknown-ca
* https://am981.ddns.net:9005/stream.ogg: unknown-ca
* http://stream.diazol.hu:7092/zene.mp3: redir then bad-identity
* https://streaming.fabrik.fm/izwi/echocast/audio/index.m3u8: unknown-ca
  (this one is a HLS stream)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4925>
2023-06-29 16:27:31 +00:00
Thibault Saunier
5ff769d731 Move files from gst-plugins-good into the "subprojects/gst-plugins-good/" subdir 2021-09-24 16:13:50 -03:00
Renamed from tests/examples/gtk/meson.build (Browse further)