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webrtcbin: factor out dtls fingerprint setting

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This commit is contained in:
Matthew Waters 2018-11-26 16:20:02 +11:00
parent 3a2566c61f
commit 6f91a191de
1 changed files with 28 additions and 66 deletions
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94
ext/webrtc/gstwebrtcbin.c
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@ -265,7 +265,8 @@ gst_webrtc_bin_pad_new (const gchar * name, GstPadDirection direction)
G_DEFINE_TYPE_WITH_CODE (GstWebRTCBin, gst_webrtc_bin, GST_TYPE_BIN,
G_ADD_PRIVATE (GstWebRTCBin)
GST_DEBUG_CATEGORY_INIT (gst_webrtc_bin_debug, "webrtcbin", 0,
"webrtcbin element"););
"webrtcbin element");
);
static GstPad *_connect_input_stream (GstWebRTCBin * webrtc,
GstWebRTCBinPad * pad);
@ -1911,6 +1912,26 @@ _media_add_ssrcs (GstSDPMedia * media, GstCaps * caps, GstWebRTCBin * webrtc,
(GstStructureForeachFunc) _media_add_rtx_ssrc, &data);
}
static void
_add_fingerprint_to_media (GstWebRTCDTLSTransport * transport,
GstSDPMedia * media)
{
gchar *cert, *fingerprint, *val;
g_object_get (transport, "certificate", &cert, NULL);
fingerprint =
_generate_fingerprint_from_certificate (cert, G_CHECKSUM_SHA256);
g_free (cert);
val =
g_strdup_printf ("%s %s",
_g_checksum_to_webrtc_string (G_CHECKSUM_SHA256), fingerprint);
g_free (fingerprint);
gst_sdp_media_add_attribute (media, "fingerprint", val);
g_free (val);
}
/* based off https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-18#section-5.2.1 */
static gboolean
sdp_media_from_transceiver (GstWebRTCBin * webrtc, GstSDPMedia * media,
@ -2035,8 +2056,6 @@ sdp_media_from_transceiver (GstWebRTCBin * webrtc, GstSDPMedia * media,
g_free (sdp_mid);
if (trans->sender) {
gchar *cert, *fingerprint, *val;
if (!trans->sender->transport) {
TransportStream *item;
@ -2047,18 +2066,7 @@ sdp_media_from_transceiver (GstWebRTCBin * webrtc, GstSDPMedia * media,
webrtc_transceiver_set_transport (WEBRTC_TRANSCEIVER (trans), item);
}
g_object_get (trans->sender->transport, "certificate", &cert, NULL);
fingerprint =
_generate_fingerprint_from_certificate (cert, G_CHECKSUM_SHA256);
g_free (cert);
val =
g_strdup_printf ("%s %s",
_g_checksum_to_webrtc_string (G_CHECKSUM_SHA256), fingerprint);
g_free (fingerprint);
gst_sdp_media_add_attribute (media, "fingerprint", val);
g_free (val);
_add_fingerprint_to_media (trans->sender->transport, media);
}
gst_caps_unref (caps);
@ -2188,23 +2196,7 @@ _create_offer_task (GstWebRTCBin * webrtc, const GstStructure * options)
_get_or_create_data_channel_transports (webrtc,
bundled_mids ? 0 : webrtc->priv->transceivers->len);
{
gchar *cert, *fingerprint, *val;
g_object_get (webrtc->priv->sctp_transport->transport, "certificate",
&cert, NULL);
fingerprint =
_generate_fingerprint_from_certificate (cert, G_CHECKSUM_SHA256);
g_free (cert);
val =
g_strdup_printf ("%s %s",
_g_checksum_to_webrtc_string (G_CHECKSUM_SHA256), fingerprint);
g_free (fingerprint);
gst_sdp_media_add_attribute (&media, "fingerprint", val);
g_free (val);
}
_add_fingerprint_to_media (webrtc->priv->sctp_transport->transport, &media);
gst_sdp_message_add_media (ret, &media);
}
@ -2405,7 +2397,6 @@ _create_answer_task (GstWebRTCBin * webrtc, const GstStructure * options)
GstWebRTCRTPTransceiverDirection offer_dir, answer_dir;
GstWebRTCDTLSSetup offer_setup, answer_setup;
GstCaps *offer_caps, *answer_caps = NULL;
gchar *cert;
guint j;
guint k;
gint target_pt = -1;
@ -2502,23 +2493,8 @@ _create_answer_task (GstWebRTCBin * webrtc, const GstStructure * options)
g_string_append_printf (bundled_mids, " %s", mid);
}
{
gchar *cert, *fingerprint, *val;
g_object_get (webrtc->priv->sctp_transport->transport, "certificate",
&cert, NULL);
fingerprint =
_generate_fingerprint_from_certificate (cert, G_CHECKSUM_SHA256);
g_free (cert);
val =
g_strdup_printf ("%s %s",
_g_checksum_to_webrtc_string (G_CHECKSUM_SHA256), fingerprint);
g_free (fingerprint);
gst_sdp_media_add_attribute (media, "fingerprint", val);
g_free (val);
}
_add_fingerprint_to_media (webrtc->priv->sctp_transport->transport,
media);
} else if (g_strcmp0 (gst_sdp_media_get_media (offer_media), "audio") == 0
|| g_strcmp0 (gst_sdp_media_get_media (offer_media), "video") == 0) {
gst_sdp_media_set_proto (media, "UDP/TLS/RTP/SAVPF");
@ -2653,23 +2629,9 @@ _create_answer_task (GstWebRTCBin * webrtc, const GstStructure * options)
}
webrtc_transceiver_set_transport (trans, item);
}
/* set the a=fingerprint: for this transport */
g_object_get (trans->stream->transport, "certificate", &cert, NULL);
{
gchar *fingerprint, *val;
fingerprint =
_generate_fingerprint_from_certificate (cert, G_CHECKSUM_SHA256);
g_free (cert);
val =
g_strdup_printf ("%s %s",
_g_checksum_to_webrtc_string (G_CHECKSUM_SHA256), fingerprint);
g_free (fingerprint);
gst_sdp_media_add_attribute (media, "fingerprint", val);
g_free (val);
}
_add_fingerprint_to_media (trans->stream->transport, media);
gst_caps_unref (offer_caps);
} else {