/* GStreamer * Copyright (C) 2007-2008 Wouter Cloetens * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more */ /** * SECTION:element-souphttpsrc * * This plugin reads data from a remote location specified by a URI. * Supported protocols are 'http', 'https'. * * An HTTP proxy must be specified by its URL. * If the "http_proxy" environment variable is set, its value is used. * If built with libsoup's GNOME integration features, the GNOME proxy * configuration will be used, or failing that, proxy autodetection. * The #GstSoupHTTPSrc:proxy property can be used to override the default. * * In case the #GstSoupHTTPSrc:iradio-mode property is set and the location is * an HTTP resource, souphttpsrc will send special Icecast HTTP headers to the * server to request additional Icecast meta-information. * If the server is not an Icecast server, it will behave as if the * #GstSoupHTTPSrc:iradio-mode property were not set. If it is, souphttpsrc will * output data with a media type of application/x-icy, in which case you will * need to use the #ICYDemux element as follow-up element to extract the Icecast * metadata and to determine the underlying media type. * * * Example launch line * |[ * gst-launch -v souphttpsrc location=https://some.server.org/index.html * ! filesink location=/home/joe/server.html * ]| The above pipeline reads a web page from a server using the HTTPS protocol * and writes it to a local file. * |[ * gst-launch -v souphttpsrc user-agent="FooPlayer 0.99 beta" * automatic-redirect=false proxy=http://proxy.intranet.local:8080 * location=http://music.foobar.com/demo.mp3 ! mad ! audioconvert * ! audioresample ! alsasink * ]| The above pipeline will read and decode and play an mp3 file from a * web server using the HTTP protocol. If the server sends redirects, * the request fails instead of following the redirect. The specified * HTTP proxy server is used. The User-Agent HTTP request header * is set to a custom string instead of "GStreamer souphttpsrc." * |[ * gst-launch -v souphttpsrc location=http://10.11.12.13/mjpeg * do-timestamp=true ! multipartdemux * ! image/jpeg,width=640,height=480 ! matroskamux * ! filesink location=mjpeg.mkv * ]| The above pipeline reads a motion JPEG stream from an IP camera * using the HTTP protocol, encoded as mime/multipart image/jpeg * parts, and writes a Matroska motion JPEG file. The width and * height properties are set in the caps to provide the Matroska * multiplexer with the information to set this in the header. * Timestamps are set on the buffers as they arrive from the camera. * These are used by the mime/multipart demultiplexer to emit timestamps * on the JPEG-encoded video frame buffers. This allows the Matroska * multiplexer to timestamp the frames in the resulting file. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #ifdef HAVE_STDLIB_H #include /* atoi() */ #endif #include #include #ifdef HAVE_LIBSOUP_GNOME #include #else #include #endif #include "gstsouphttpsrc.h" #include GST_DEBUG_CATEGORY_STATIC (souphttpsrc_debug); #define GST_CAT_DEFAULT souphttpsrc_debug static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS_ANY); enum { PROP_0, PROP_LOCATION, PROP_IS_LIVE, PROP_USER_AGENT, PROP_AUTOMATIC_REDIRECT, PROP_PROXY, PROP_USER_ID, PROP_USER_PW, PROP_PROXY_ID, PROP_PROXY_PW, PROP_COOKIES, PROP_TIMEOUT, PROP_EXTRA_HEADERS }; #define DEFAULT_USER_AGENT "GStreamer souphttpsrc " static void gst_soup_http_src_uri_handler_init (gpointer g_iface, gpointer iface_data); static void gst_soup_http_src_finalize (GObject * gobject); static void gst_soup_http_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_soup_http_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static GstFlowReturn gst_soup_http_src_create (GstPushSrc * psrc, GstBuffer ** outbuf); static gboolean gst_soup_http_src_start (GstBaseSrc * bsrc); static gboolean gst_soup_http_src_stop (GstBaseSrc * bsrc); static gboolean gst_soup_http_src_get_size (GstBaseSrc * bsrc, guint64 * size); static gboolean gst_soup_http_src_is_seekable (GstBaseSrc * bsrc); static gboolean gst_soup_http_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment); static gboolean gst_soup_http_src_query (GstBaseSrc * bsrc, GstQuery * query); static gboolean gst_soup_http_src_unlock (GstBaseSrc * bsrc); static gboolean gst_soup_http_src_unlock_stop (GstBaseSrc * bsrc); static gboolean gst_soup_http_src_set_location (GstSoupHTTPSrc * src, const gchar * uri, GError ** error); static gboolean gst_soup_http_src_set_proxy (GstSoupHTTPSrc * src, const gchar * uri); static char *gst_soup_http_src_unicodify (const char *str); static gboolean gst_soup_http_src_build_message (GstSoupHTTPSrc * src); static void gst_soup_http_src_cancel_message (GstSoupHTTPSrc * src); static void gst_soup_http_src_queue_message (GstSoupHTTPSrc * src); static gboolean gst_soup_http_src_add_range_header (GstSoupHTTPSrc * src, guint64 offset); static void gst_soup_http_src_session_unpause_message (GstSoupHTTPSrc * src); static void gst_soup_http_src_session_pause_message (GstSoupHTTPSrc * src); static void gst_soup_http_src_session_close (GstSoupHTTPSrc * src); static void gst_soup_http_src_parse_status (SoupMessage * msg, GstSoupHTTPSrc * src); static void gst_soup_http_src_chunk_free (gpointer gstbuf); static SoupBuffer *gst_soup_http_src_chunk_allocator (SoupMessage * msg, gsize max_len, gpointer user_data); static void gst_soup_http_src_got_chunk_cb (SoupMessage * msg, SoupBuffer * chunk, GstSoupHTTPSrc * src); static void gst_soup_http_src_response_cb (SoupSession * session, SoupMessage * msg, GstSoupHTTPSrc * src); static void gst_soup_http_src_got_headers_cb (SoupMessage * msg, GstSoupHTTPSrc * src); static void gst_soup_http_src_got_body_cb (SoupMessage * msg, GstSoupHTTPSrc * src); static void gst_soup_http_src_finished_cb (SoupMessage * msg, GstSoupHTTPSrc * src); static void gst_soup_http_src_authenticate_cb (SoupSession * session, SoupMessage * msg, SoupAuth * auth, gboolean retrying, GstSoupHTTPSrc * src); #define gst_soup_http_src_parent_class parent_class G_DEFINE_TYPE_WITH_CODE (GstSoupHTTPSrc, gst_soup_http_src, GST_TYPE_PUSH_SRC, G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER, gst_soup_http_src_uri_handler_init)); static void gst_soup_http_src_class_init (GstSoupHTTPSrcClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSrcClass *gstbasesrc_class; GstPushSrcClass *gstpushsrc_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; gstbasesrc_class = (GstBaseSrcClass *) klass; gstpushsrc_class = (GstPushSrcClass *) klass; gobject_class->set_property = gst_soup_http_src_set_property; gobject_class->get_property = gst_soup_http_src_get_property; gobject_class->finalize = gst_soup_http_src_finalize; g_object_class_install_property (gobject_class, PROP_LOCATION, g_param_spec_string ("location", "Location", "Location to read from", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_USER_AGENT, g_param_spec_string ("user-agent", "User-Agent", "Value of the User-Agent HTTP request header field", DEFAULT_USER_AGENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_AUTOMATIC_REDIRECT, g_param_spec_boolean ("automatic-redirect", "automatic-redirect", "Automatically follow HTTP redirects (HTTP Status Code 3xx)", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_PROXY, g_param_spec_string ("proxy", "Proxy", "HTTP proxy server URI", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_USER_ID, g_param_spec_string ("user-id", "user-id", "HTTP location URI user id for authentication", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_USER_PW, g_param_spec_string ("user-pw", "user-pw", "HTTP location URI user password for authentication", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_PROXY_ID, g_param_spec_string ("proxy-id", "proxy-id", "HTTP proxy URI user id for authentication", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_PROXY_PW, g_param_spec_string ("proxy-pw", "proxy-pw", "HTTP proxy URI user password for authentication", "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_COOKIES, g_param_spec_boxed ("cookies", "Cookies", "HTTP request cookies", G_TYPE_STRV, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_IS_LIVE, g_param_spec_boolean ("is-live", "is-live", "Act like a live source", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_TIMEOUT, g_param_spec_uint ("timeout", "timeout", "Value in seconds to timeout a blocking I/O (0 = No timeout).", 0, 3600, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_EXTRA_HEADERS, g_param_spec_boxed ("extra-headers", "Extra Headers", "Extra headers to append to the HTTP request", GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); gst_element_class_add_pad_template (gstelement_class, gst_static_pad_template_get (&srctemplate)); gst_element_class_set_details_simple (gstelement_class, "HTTP client source", "Source/Network", "Receive data as a client over the network via HTTP using SOUP", "Wouter Cloetens "); gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_soup_http_src_start); gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_soup_http_src_stop); gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_soup_http_src_unlock); gstbasesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_soup_http_src_unlock_stop); gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_soup_http_src_get_size); gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_soup_http_src_is_seekable); gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_soup_http_src_do_seek); gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_soup_http_src_query); gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_soup_http_src_create); GST_DEBUG_CATEGORY_INIT (souphttpsrc_debug, "souphttpsrc", 0, "SOUP HTTP src"); } static void gst_soup_http_src_reset (GstSoupHTTPSrc * src) { src->interrupted = FALSE; src->retry = FALSE; src->have_size = FALSE; src->seekable = FALSE; src->read_position = 0; src->request_position = 0; src->content_size = 0; gst_caps_replace (&src->src_caps, NULL); g_free (src->iradio_name); src->iradio_name = NULL; g_free (src->iradio_genre); src->iradio_genre = NULL; g_free (src->iradio_url); src->iradio_url = NULL; } static void gst_soup_http_src_init (GstSoupHTTPSrc * src) { const gchar *proxy; src->location = NULL; src->automatic_redirect = TRUE; src->user_agent = g_strdup (DEFAULT_USER_AGENT); src->user_id = NULL; src->user_pw = NULL; src->proxy_id = NULL; src->proxy_pw = NULL; src->cookies = NULL; src->loop = NULL; src->context = NULL; src->session = NULL; src->msg = NULL; proxy = g_getenv ("http_proxy"); if (proxy && !gst_soup_http_src_set_proxy (src, proxy)) { GST_WARNING_OBJECT (src, "The proxy in the http_proxy env var (\"%s\") cannot be parsed.", proxy); } gst_soup_http_src_reset (src); } static void gst_soup_http_src_finalize (GObject * gobject) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (gobject); GST_DEBUG_OBJECT (src, "finalize"); g_free (src->location); g_free (src->user_agent); if (src->proxy != NULL) { soup_uri_free (src->proxy); } g_free (src->user_id); g_free (src->user_pw); g_free (src->proxy_id); g_free (src->proxy_pw); g_strfreev (src->cookies); G_OBJECT_CLASS (parent_class)->finalize (gobject); } static void gst_soup_http_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (object); switch (prop_id) { case PROP_LOCATION: { const gchar *location; location = g_value_get_string (value); if (location == NULL) { GST_WARNING ("location property cannot be NULL"); goto done; } if (!gst_soup_http_src_set_location (src, location, NULL)) { GST_WARNING ("badly formatted location"); goto done; } break; } case PROP_USER_AGENT: if (src->user_agent) g_free (src->user_agent); src->user_agent = g_value_dup_string (value); break; case PROP_AUTOMATIC_REDIRECT: src->automatic_redirect = g_value_get_boolean (value); break; case PROP_PROXY: { const gchar *proxy; proxy = g_value_get_string (value); if (proxy == NULL) { GST_WARNING ("proxy property cannot be NULL"); goto done; } if (!gst_soup_http_src_set_proxy (src, proxy)) { GST_WARNING ("badly formatted proxy URI"); goto done; } break; } case PROP_COOKIES: g_strfreev (src->cookies); src->cookies = g_strdupv (g_value_get_boxed (value)); break; case PROP_IS_LIVE: gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value)); break; case PROP_USER_ID: if (src->user_id) g_free (src->user_id); src->user_id = g_value_dup_string (value); break; case PROP_USER_PW: if (src->user_pw) g_free (src->user_pw); src->user_pw = g_value_dup_string (value); break; case PROP_PROXY_ID: if (src->proxy_id) g_free (src->proxy_id); src->proxy_id = g_value_dup_string (value); break; case PROP_PROXY_PW: if (src->proxy_pw) g_free (src->proxy_pw); src->proxy_pw = g_value_dup_string (value); break; case PROP_TIMEOUT: src->timeout = g_value_get_uint (value); break; case PROP_EXTRA_HEADERS:{ const GstStructure *s = gst_value_get_structure (value); if (src->extra_headers) gst_structure_free (src->extra_headers); src->extra_headers = s ? gst_structure_copy (s) : NULL; break; } default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } done: return; } static void gst_soup_http_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (object); switch (prop_id) { case PROP_LOCATION: g_value_set_string (value, src->location); break; case PROP_USER_AGENT: g_value_set_string (value, src->user_agent); break; case PROP_AUTOMATIC_REDIRECT: g_value_set_boolean (value, src->automatic_redirect); break; case PROP_PROXY: if (src->proxy == NULL) g_value_set_static_string (value, ""); else { char *proxy = soup_uri_to_string (src->proxy, FALSE); g_value_set_string (value, proxy); g_free (proxy); } break; case PROP_COOKIES: g_value_set_boxed (value, g_strdupv (src->cookies)); break; case PROP_IS_LIVE: g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src))); break; case PROP_USER_ID: g_value_set_string (value, src->user_id); break; case PROP_USER_PW: g_value_set_string (value, src->user_pw); break; case PROP_PROXY_ID: g_value_set_string (value, src->proxy_id); break; case PROP_PROXY_PW: g_value_set_string (value, src->proxy_pw); break; case PROP_TIMEOUT: g_value_set_uint (value, src->timeout); break; case PROP_EXTRA_HEADERS: gst_value_set_structure (value, src->extra_headers); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gchar * gst_soup_http_src_unicodify (const gchar * str) { const gchar *env_vars[] = { "GST_ICY_TAG_ENCODING", "GST_TAG_ENCODING", NULL }; return gst_tag_freeform_string_to_utf8 (str, -1, env_vars); } static void gst_soup_http_src_cancel_message (GstSoupHTTPSrc * src) { if (src->msg != NULL) { src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_CANCELLED; soup_session_cancel_message (src->session, src->msg, SOUP_STATUS_CANCELLED); } src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE; src->msg = NULL; } static void gst_soup_http_src_queue_message (GstSoupHTTPSrc * src) { soup_session_queue_message (src->session, src->msg, (SoupSessionCallback) gst_soup_http_src_response_cb, src); src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_QUEUED; } static gboolean gst_soup_http_src_add_range_header (GstSoupHTTPSrc * src, guint64 offset) { gchar buf[64]; gint rc; soup_message_headers_remove (src->msg->request_headers, "Range"); if (offset) { rc = g_snprintf (buf, sizeof (buf), "bytes=%" G_GUINT64_FORMAT "-", offset); if (rc > sizeof (buf) || rc < 0) return FALSE; soup_message_headers_append (src->msg->request_headers, "Range", buf); } src->read_position = offset; return TRUE; } static gboolean _append_extra_header (GQuark field_id, const GValue * value, gpointer user_data) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (user_data); const gchar *field_name = g_quark_to_string (field_id); gchar *field_content = NULL; if (G_VALUE_TYPE (value) == G_TYPE_STRING) { field_content = g_value_dup_string (value); } else { GValue dest = { 0, }; g_value_init (&dest, G_TYPE_STRING); if (g_value_transform (value, &dest)) { field_content = g_value_dup_string (&dest); } } if (field_content == NULL) { GST_ERROR_OBJECT (src, "extra-headers field '%s' contains no value " "or can't be converted to a string", field_name); return FALSE; } GST_DEBUG_OBJECT (src, "Appending extra header: \"%s: %s\"", field_name, field_content); soup_message_headers_append (src->msg->request_headers, field_name, field_content); g_free (field_content); return TRUE; } static gboolean _append_extra_headers (GQuark field_id, const GValue * value, gpointer user_data) { if (G_VALUE_TYPE (value) == GST_TYPE_ARRAY) { guint n = gst_value_array_get_size (value); guint i; for (i = 0; i < n; i++) { const GValue *v = gst_value_array_get_value (value, i); if (!_append_extra_header (field_id, v, user_data)) return FALSE; } } else if (G_VALUE_TYPE (value) == GST_TYPE_LIST) { guint n = gst_value_list_get_size (value); guint i; for (i = 0; i < n; i++) { const GValue *v = gst_value_list_get_value (value, i); if (!_append_extra_header (field_id, v, user_data)) return FALSE; } } else { return _append_extra_header (field_id, value, user_data); } return TRUE; } static gboolean gst_soup_http_src_add_extra_headers (GstSoupHTTPSrc * src) { if (!src->extra_headers) return TRUE; return gst_structure_foreach (src->extra_headers, _append_extra_headers, src); } static void gst_soup_http_src_session_unpause_message (GstSoupHTTPSrc * src) { soup_session_unpause_message (src->session, src->msg); } static void gst_soup_http_src_session_pause_message (GstSoupHTTPSrc * src) { soup_session_pause_message (src->session, src->msg); } static void gst_soup_http_src_session_close (GstSoupHTTPSrc * src) { if (src->session) { soup_session_abort (src->session); /* This unrefs the message. */ g_object_unref (src->session); src->session = NULL; src->msg = NULL; } } static void gst_soup_http_src_authenticate_cb (SoupSession * session, SoupMessage * msg, SoupAuth * auth, gboolean retrying, GstSoupHTTPSrc * src) { if (!retrying) { /* First time authentication only, if we fail and are called again with retry true fall through */ if (msg->status_code == SOUP_STATUS_UNAUTHORIZED) { if (src->user_id && src->user_pw) soup_auth_authenticate (auth, src->user_id, src->user_pw); } else if (msg->status_code == SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED) { if (src->proxy_id && src->proxy_pw) soup_auth_authenticate (auth, src->proxy_id, src->proxy_pw); } } } static void gst_soup_http_src_headers_foreach (const gchar * name, const gchar * val, gpointer src) { GST_DEBUG_OBJECT (src, " %s: %s", name, val); } static void gst_soup_http_src_got_headers_cb (SoupMessage * msg, GstSoupHTTPSrc * src) { const char *value; GstTagList *tag_list; GstBaseSrc *basesrc; guint64 newsize; GHashTable *params = NULL; GST_DEBUG_OBJECT (src, "got headers:"); soup_message_headers_foreach (msg->response_headers, gst_soup_http_src_headers_foreach, src); if (msg->status_code == 407 && src->proxy_id && src->proxy_pw) return; if (src->automatic_redirect && SOUP_STATUS_IS_REDIRECTION (msg->status_code)) { GST_DEBUG_OBJECT (src, "%u redirect to \"%s\"", msg->status_code, soup_message_headers_get (msg->response_headers, "Location")); return; } if (msg->status_code == SOUP_STATUS_UNAUTHORIZED) return; src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING; /* Parse Content-Length. */ if (soup_message_headers_get_encoding (msg->response_headers) == SOUP_ENCODING_CONTENT_LENGTH) { newsize = src->request_position + soup_message_headers_get_content_length (msg->response_headers); if (!src->have_size || (src->content_size != newsize)) { src->content_size = newsize; src->have_size = TRUE; src->seekable = TRUE; GST_DEBUG_OBJECT (src, "size = %" G_GUINT64_FORMAT, src->content_size); basesrc = GST_BASE_SRC_CAST (src); basesrc->segment.duration = src->content_size; gst_element_post_message (GST_ELEMENT (src), gst_message_new_duration (GST_OBJECT (src), GST_FORMAT_BYTES, src->content_size)); } } /* Icecast stuff */ tag_list = gst_tag_list_new_empty (); if ((value = soup_message_headers_get (msg->response_headers, "icy-metaint")) != NULL) { gint icy_metaint = atoi (value); GST_DEBUG_OBJECT (src, "icy-metaint: %s (parsed: %d)", value, icy_metaint); if (icy_metaint > 0) { if (src->src_caps) gst_caps_unref (src->src_caps); src->src_caps = gst_caps_new_simple ("application/x-icy", "metadata-interval", G_TYPE_INT, icy_metaint, NULL); } } if ((value = soup_message_headers_get_content_type (msg->response_headers, ¶ms)) != NULL) { GST_DEBUG_OBJECT (src, "Content-Type: %s", value); if (g_ascii_strcasecmp (value, "audio/L16") == 0) { gint channels = 2; gint rate = 44100; char *param; if (src->src_caps) gst_caps_unref (src->src_caps); param = g_hash_table_lookup (params, "channels"); if (param != NULL) channels = atol (param); param = g_hash_table_lookup (params, "rate"); if (param != NULL) rate = atol (param); src->src_caps = gst_caps_new_simple ("audio/x-raw", "format", G_TYPE_STRING, "S16_BE", "channels", G_TYPE_INT, channels, "rate", G_TYPE_INT, rate, NULL); } else { /* Set the Content-Type field on the caps */ if (src->src_caps) gst_caps_set_simple (src->src_caps, "content-type", G_TYPE_STRING, value, NULL); } } if (params != NULL) g_hash_table_destroy (params); if ((value = soup_message_headers_get (msg->response_headers, "icy-name")) != NULL) { g_free (src->iradio_name); src->iradio_name = gst_soup_http_src_unicodify (value); if (src->iradio_name) { gst_tag_list_add (tag_list, GST_TAG_MERGE_REPLACE, GST_TAG_ORGANIZATION, src->iradio_name, NULL); } } if ((value = soup_message_headers_get (msg->response_headers, "icy-genre")) != NULL) { g_free (src->iradio_genre); src->iradio_genre = gst_soup_http_src_unicodify (value); if (src->iradio_genre) { gst_tag_list_add (tag_list, GST_TAG_MERGE_REPLACE, GST_TAG_GENRE, src->iradio_genre, NULL); } } if ((value = soup_message_headers_get (msg->response_headers, "icy-url")) != NULL) { g_free (src->iradio_url); src->iradio_url = gst_soup_http_src_unicodify (value); if (src->iradio_url) { gst_tag_list_add (tag_list, GST_TAG_MERGE_REPLACE, GST_TAG_LOCATION, src->iradio_url, NULL); } } if (!gst_tag_list_is_empty (tag_list)) { GST_DEBUG_OBJECT (src, "calling gst_element_found_tags with %" GST_PTR_FORMAT, tag_list); gst_pad_push_event (GST_BASE_SRC_PAD (src), gst_event_new_tag (tag_list)); } else { gst_tag_list_free (tag_list); } /* Handle HTTP errors. */ gst_soup_http_src_parse_status (msg, src); /* Check if Range header was respected. */ if (src->ret == GST_FLOW_CUSTOM_ERROR && src->read_position && msg->status_code != SOUP_STATUS_PARTIAL_CONTENT) { src->seekable = FALSE; GST_ELEMENT_ERROR (src, RESOURCE, SEEK, (_("Server does not support seeking.")), ("Server does not accept Range HTTP header, URL: %s", src->location)); src->ret = GST_FLOW_ERROR; } } /* Have body. Signal EOS. */ static void gst_soup_http_src_got_body_cb (SoupMessage * msg, GstSoupHTTPSrc * src) { if (G_UNLIKELY (msg != src->msg)) { GST_DEBUG_OBJECT (src, "got body, but not for current message"); return; } if (G_UNLIKELY (src->session_io_status != GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)) { /* Probably a redirect. */ return; } GST_DEBUG_OBJECT (src, "got body"); src->ret = GST_FLOW_UNEXPECTED; if (src->loop) g_main_loop_quit (src->loop); gst_soup_http_src_session_pause_message (src); } /* Finished. Signal EOS. */ static void gst_soup_http_src_finished_cb (SoupMessage * msg, GstSoupHTTPSrc * src) { if (G_UNLIKELY (msg != src->msg)) { GST_DEBUG_OBJECT (src, "finished, but not for current message"); return; } GST_DEBUG_OBJECT (src, "finished"); src->ret = GST_FLOW_UNEXPECTED; if (src->session_io_status == GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_CANCELLED) { /* gst_soup_http_src_cancel_message() triggered this; probably a seek * that occurred in the QUEUEING state; i.e. before the connection setup * was complete. Do nothing */ } else if (src->session_io_status == GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING && src->read_position > 0) { /* The server disconnected while streaming. Reconnect and seeking to the * last location. */ src->retry = TRUE; src->ret = GST_FLOW_CUSTOM_ERROR; } else if (G_UNLIKELY (src->session_io_status != GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)) { /* FIXME: reason_phrase is not translated, add proper error message */ GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, ("%s", msg->reason_phrase), ("libsoup status code %d", msg->status_code)); } if (src->loop) g_main_loop_quit (src->loop); } /* Buffer lifecycle management. * * gst_soup_http_src_create() runs the GMainLoop for this element, to let * Soup take control. * A GstBuffer is allocated in gst_soup_http_src_chunk_allocator() and * associated with a SoupBuffer. * Soup reads HTTP data in the GstBuffer's data buffer. * The gst_soup_http_src_got_chunk_cb() is then called with the SoupBuffer. * That sets gst_soup_http_src_create()'s return argument to the GstBuffer, * increments its refcount (to 2), pauses the flow of data from the HTTP * source to prevent gst_soup_http_src_got_chunk_cb() from being called * again and breaks out of the GMainLoop. * Because the SOUP_MESSAGE_OVERWRITE_CHUNKS flag is set, Soup frees the * SoupBuffer and calls gst_soup_http_src_chunk_free(), which decrements the * refcount (to 1). * gst_soup_http_src_create() returns the GstBuffer. It will be freed by a * downstream element. * If Soup fails to read HTTP data, it does not call * gst_soup_http_src_got_chunk_cb(), but still frees the SoupBuffer and * calls gst_soup_http_src_chunk_free(), which decrements the GstBuffer's * refcount to 0, freeing it. */ typedef struct { GstBuffer *buffer; gpointer data; } SoupGstChunk; static void gst_soup_http_src_chunk_free (gpointer user_data) { SoupGstChunk *chunk = (SoupGstChunk *) user_data; gst_buffer_unmap (chunk->buffer, chunk->data, -1); gst_buffer_unref (chunk->buffer); g_slice_free (SoupGstChunk, chunk); } static SoupBuffer * gst_soup_http_src_chunk_allocator (SoupMessage * msg, gsize max_len, gpointer user_data) { GstSoupHTTPSrc *src = (GstSoupHTTPSrc *) user_data; GstBaseSrc *basesrc = GST_BASE_SRC_CAST (src); GstBuffer *gstbuf; SoupBuffer *soupbuf; gsize length; GstFlowReturn rc; SoupGstChunk *chunk; if (max_len) length = MIN (basesrc->blocksize, max_len); else length = basesrc->blocksize; GST_DEBUG_OBJECT (src, "alloc %" G_GSIZE_FORMAT " bytes <= %" G_GSIZE_FORMAT, length, max_len); rc = GST_BASE_SRC_CLASS (parent_class)->alloc (basesrc, -1, length, &gstbuf); if (G_UNLIKELY (rc != GST_FLOW_OK)) { /* Failed to allocate buffer. Stall SoupSession and return error code * to create(). */ src->ret = rc; g_main_loop_quit (src->loop); return NULL; } chunk = g_slice_new0 (SoupGstChunk); chunk->buffer = gstbuf; chunk->data = gst_buffer_map (gstbuf, &length, NULL, GST_MAP_READWRITE); soupbuf = soup_buffer_new_with_owner (chunk->data, length, chunk, gst_soup_http_src_chunk_free); return soupbuf; } static void gst_soup_http_src_got_chunk_cb (SoupMessage * msg, SoupBuffer * chunk, GstSoupHTTPSrc * src) { GstBaseSrc *basesrc; guint64 new_position; if (G_UNLIKELY (msg != src->msg)) { GST_DEBUG_OBJECT (src, "got chunk, but not for current message"); return; } if (G_UNLIKELY (src->session_io_status != GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)) { /* Probably a redirect. */ return; } basesrc = GST_BASE_SRC_CAST (src); GST_DEBUG_OBJECT (src, "got chunk of %" G_GSIZE_FORMAT " bytes", chunk->length); /* Extract the GstBuffer from the SoupBuffer and set its fields. */ *src->outbuf = GST_BUFFER_CAST (soup_buffer_get_owner (chunk)); gst_buffer_resize (*src->outbuf, 0, chunk->length); GST_BUFFER_OFFSET (*src->outbuf) = basesrc->segment.position; gst_buffer_ref (*src->outbuf); new_position = src->read_position + chunk->length; if (G_LIKELY (src->request_position == src->read_position)) src->request_position = new_position; src->read_position = new_position; src->ret = GST_FLOW_OK; g_main_loop_quit (src->loop); gst_soup_http_src_session_pause_message (src); } static void gst_soup_http_src_response_cb (SoupSession * session, SoupMessage * msg, GstSoupHTTPSrc * src) { if (G_UNLIKELY (msg != src->msg)) { GST_DEBUG_OBJECT (src, "got response %d: %s, but not for current message", msg->status_code, msg->reason_phrase); return; } if (G_UNLIKELY (src->session_io_status != GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING) && SOUP_STATUS_IS_REDIRECTION (msg->status_code)) { /* Ignore redirections. */ return; } GST_DEBUG_OBJECT (src, "got response %d: %s", msg->status_code, msg->reason_phrase); if (src->session_io_status == GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING && src->read_position > 0) { /* The server disconnected while streaming. Reconnect and seeking to the * last location. */ src->retry = TRUE; } else gst_soup_http_src_parse_status (msg, src); /* The session's SoupMessage object expires after this callback returns. */ src->msg = NULL; g_main_loop_quit (src->loop); } #define SOUP_HTTP_SRC_ERROR(src,soup_msg,cat,code,error_message) \ GST_ELEMENT_ERROR ((src), cat, code, ("%s", error_message), \ ("%s (%d), URL: %s", (soup_msg)->reason_phrase, \ (soup_msg)->status_code, (src)->location)); static void gst_soup_http_src_parse_status (SoupMessage * msg, GstSoupHTTPSrc * src) { if (SOUP_STATUS_IS_TRANSPORT_ERROR (msg->status_code)) { switch (msg->status_code) { case SOUP_STATUS_CANT_RESOLVE: case SOUP_STATUS_CANT_RESOLVE_PROXY: SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, NOT_FOUND, _("Could not resolve server name.")); src->ret = GST_FLOW_ERROR; break; case SOUP_STATUS_CANT_CONNECT: case SOUP_STATUS_CANT_CONNECT_PROXY: SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, OPEN_READ, _("Could not establish connection to server.")); src->ret = GST_FLOW_ERROR; break; case SOUP_STATUS_SSL_FAILED: SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, OPEN_READ, _("Secure connection setup failed.")); src->ret = GST_FLOW_ERROR; break; case SOUP_STATUS_IO_ERROR: SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, READ, _("A network error occured, or the server closed the connection " "unexpectedly.")); src->ret = GST_FLOW_ERROR; break; case SOUP_STATUS_MALFORMED: SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, READ, _("Server sent bad data.")); src->ret = GST_FLOW_ERROR; break; case SOUP_STATUS_CANCELLED: /* No error message when interrupted by program. */ break; } } else if (SOUP_STATUS_IS_CLIENT_ERROR (msg->status_code) || SOUP_STATUS_IS_REDIRECTION (msg->status_code) || SOUP_STATUS_IS_SERVER_ERROR (msg->status_code)) { /* Report HTTP error. */ /* FIXME: reason_phrase is not translated and not suitable for user * error dialog according to libsoup documentation. * FIXME: error code (OPEN_READ vs. READ) should depend on http status? */ GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, ("%s", msg->reason_phrase), ("%s (%d), URL: %s", msg->reason_phrase, msg->status_code, src->location)); src->ret = GST_FLOW_ERROR; } } static gboolean gst_soup_http_src_build_message (GstSoupHTTPSrc * src) { src->msg = soup_message_new (SOUP_METHOD_GET, src->location); if (!src->msg) { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, ("Error parsing URL."), ("URL: %s", src->location)); return FALSE; } src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE; soup_message_headers_append (src->msg->request_headers, "Connection", "close"); soup_message_headers_append (src->msg->request_headers, "icy-metadata", "1"); if (src->cookies) { gchar **cookie; for (cookie = src->cookies; *cookie != NULL; cookie++) { soup_message_headers_append (src->msg->request_headers, "Cookie", *cookie); } } soup_message_headers_append (src->msg->request_headers, "transferMode.dlna.org", "Streaming"); src->retry = FALSE; g_signal_connect (src->msg, "got_headers", G_CALLBACK (gst_soup_http_src_got_headers_cb), src); g_signal_connect (src->msg, "got_body", G_CALLBACK (gst_soup_http_src_got_body_cb), src); g_signal_connect (src->msg, "finished", G_CALLBACK (gst_soup_http_src_finished_cb), src); g_signal_connect (src->msg, "got_chunk", G_CALLBACK (gst_soup_http_src_got_chunk_cb), src); soup_message_set_flags (src->msg, SOUP_MESSAGE_OVERWRITE_CHUNKS | (src->automatic_redirect ? 0 : SOUP_MESSAGE_NO_REDIRECT)); soup_message_set_chunk_allocator (src->msg, gst_soup_http_src_chunk_allocator, src, NULL); gst_soup_http_src_add_range_header (src, src->request_position); gst_soup_http_src_add_extra_headers (src); GST_DEBUG_OBJECT (src, "request headers:"); soup_message_headers_foreach (src->msg->request_headers, gst_soup_http_src_headers_foreach, src); return TRUE; } static GstFlowReturn gst_soup_http_src_create (GstPushSrc * psrc, GstBuffer ** outbuf) { GstSoupHTTPSrc *src; src = GST_SOUP_HTTP_SRC (psrc); if (src->msg && (src->request_position != src->read_position)) { if (src->content_size != 0 && src->request_position >= src->content_size) { GST_WARNING_OBJECT (src, "Seeking behind the end of file -- EOS"); return GST_FLOW_UNEXPECTED; } else if (src->session_io_status == GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE) { gst_soup_http_src_add_range_header (src, src->request_position); } else { GST_DEBUG_OBJECT (src, "Seek from position %" G_GUINT64_FORMAT " to %" G_GUINT64_FORMAT ": requeueing connection request", src->read_position, src->request_position); gst_soup_http_src_cancel_message (src); } } if (!src->msg) if (!gst_soup_http_src_build_message (src)) return GST_FLOW_ERROR; src->ret = GST_FLOW_CUSTOM_ERROR; src->outbuf = outbuf; do { if (src->interrupted) { GST_DEBUG_OBJECT (src, "interrupted"); break; } if (src->retry) { GST_DEBUG_OBJECT (src, "Reconnecting"); if (!gst_soup_http_src_build_message (src)) return GST_FLOW_ERROR; src->retry = FALSE; continue; } if (!src->msg) { GST_DEBUG_OBJECT (src, "EOS reached"); break; } switch (src->session_io_status) { case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE: GST_DEBUG_OBJECT (src, "Queueing connection request"); gst_soup_http_src_queue_message (src); break; case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_QUEUED: break; case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING: gst_soup_http_src_session_unpause_message (src); break; case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_CANCELLED: /* Impossible. */ break; } if (src->ret == GST_FLOW_CUSTOM_ERROR) g_main_loop_run (src->loop); } while (src->ret == GST_FLOW_CUSTOM_ERROR); if (src->ret == GST_FLOW_CUSTOM_ERROR) src->ret = GST_FLOW_UNEXPECTED; return src->ret; } static gboolean gst_soup_http_src_start (GstBaseSrc * bsrc) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc); GST_DEBUG_OBJECT (src, "start(\"%s\")", src->location); if (!src->location) { GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (_("No URL set.")), ("Missing location property")); return FALSE; } src->context = g_main_context_new (); src->loop = g_main_loop_new (src->context, TRUE); if (!src->loop) { GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL), ("Failed to start GMainLoop")); g_main_context_unref (src->context); return FALSE; } if (src->proxy == NULL) { src->session = soup_session_async_new_with_options (SOUP_SESSION_ASYNC_CONTEXT, src->context, SOUP_SESSION_USER_AGENT, src->user_agent, SOUP_SESSION_TIMEOUT, src->timeout, #ifdef HAVE_LIBSOUP_GNOME SOUP_SESSION_ADD_FEATURE_BY_TYPE, SOUP_TYPE_PROXY_RESOLVER_GNOME, #endif NULL); } else { src->session = soup_session_async_new_with_options (SOUP_SESSION_ASYNC_CONTEXT, src->context, SOUP_SESSION_PROXY_URI, src->proxy, SOUP_SESSION_TIMEOUT, src->timeout, SOUP_SESSION_USER_AGENT, src->user_agent, NULL); } if (!src->session) { GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL), ("Failed to create async session")); return FALSE; } g_signal_connect (src->session, "authenticate", G_CALLBACK (gst_soup_http_src_authenticate_cb), src); return TRUE; } static gboolean gst_soup_http_src_stop (GstBaseSrc * bsrc) { GstSoupHTTPSrc *src; src = GST_SOUP_HTTP_SRC (bsrc); GST_DEBUG_OBJECT (src, "stop()"); gst_soup_http_src_session_close (src); if (src->loop) { g_main_loop_unref (src->loop); g_main_context_unref (src->context); src->loop = NULL; src->context = NULL; } if (src->extra_headers) { gst_structure_free (src->extra_headers); src->extra_headers = NULL; } gst_soup_http_src_reset (src); return TRUE; } /* Interrupt a blocking request. */ static gboolean gst_soup_http_src_unlock (GstBaseSrc * bsrc) { GstSoupHTTPSrc *src; src = GST_SOUP_HTTP_SRC (bsrc); GST_DEBUG_OBJECT (src, "unlock()"); src->interrupted = TRUE; if (src->loop) g_main_loop_quit (src->loop); return TRUE; } /* Interrupt interrupt. */ static gboolean gst_soup_http_src_unlock_stop (GstBaseSrc * bsrc) { GstSoupHTTPSrc *src; src = GST_SOUP_HTTP_SRC (bsrc); GST_DEBUG_OBJECT (src, "unlock_stop()"); src->interrupted = FALSE; return TRUE; } static gboolean gst_soup_http_src_get_size (GstBaseSrc * bsrc, guint64 * size) { GstSoupHTTPSrc *src; src = GST_SOUP_HTTP_SRC (bsrc); if (src->have_size) { GST_DEBUG_OBJECT (src, "get_size() = %" G_GUINT64_FORMAT, src->content_size); *size = src->content_size; return TRUE; } GST_DEBUG_OBJECT (src, "get_size() = FALSE"); return FALSE; } static gboolean gst_soup_http_src_is_seekable (GstBaseSrc * bsrc) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc); return src->seekable; } static gboolean gst_soup_http_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc); GST_DEBUG_OBJECT (src, "do_seek(%" G_GUINT64_FORMAT ")", segment->start); if (src->read_position == segment->start) { GST_DEBUG_OBJECT (src, "Seeking to current read position"); return TRUE; } if (!src->seekable) { GST_WARNING_OBJECT (src, "Not seekable"); return FALSE; } if (segment->rate < 0.0 || segment->format != GST_FORMAT_BYTES) { GST_WARNING_OBJECT (src, "Invalid seek segment"); return FALSE; } if (src->content_size != 0 && segment->start >= src->content_size) { GST_WARNING_OBJECT (src, "Seeking behind end of file, will go to EOS soon"); } /* Wait for create() to handle the jump in offset. */ src->request_position = segment->start; return TRUE; } static gboolean gst_soup_http_src_query (GstBaseSrc * bsrc, GstQuery * query) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc); gboolean ret; switch (GST_QUERY_TYPE (query)) { case GST_QUERY_URI: gst_query_set_uri (query, src->location); ret = TRUE; break; default: ret = FALSE; break; } if (!ret) ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query); return ret; } static gboolean gst_soup_http_src_set_location (GstSoupHTTPSrc * src, const gchar * uri, GError ** error) { if (src->location) { g_free (src->location); src->location = NULL; } src->location = g_strdup (uri); return TRUE; } static gboolean gst_soup_http_src_set_proxy (GstSoupHTTPSrc * src, const gchar * uri) { if (src->proxy) { soup_uri_free (src->proxy); src->proxy = NULL; } if (g_str_has_prefix (uri, "http://")) { src->proxy = soup_uri_new (uri); } else { gchar *new_uri = g_strconcat ("http://", uri, NULL); src->proxy = soup_uri_new (new_uri); g_free (new_uri); } return TRUE; } static guint gst_soup_http_src_uri_get_type (GType type) { return GST_URI_SRC; } static const gchar *const * gst_soup_http_src_uri_get_protocols (GType type) { static const gchar *protocols[] = { "http", "https", NULL }; return protocols; } static gchar * gst_soup_http_src_uri_get_uri (GstURIHandler * handler) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (handler); /* FIXME: make thread-safe */ return g_strdup (src->location); } static gboolean gst_soup_http_src_uri_set_uri (GstURIHandler * handler, const gchar * uri, GError ** error) { GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (handler); return gst_soup_http_src_set_location (src, uri, error); } static void gst_soup_http_src_uri_handler_init (gpointer g_iface, gpointer iface_data) { GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface; iface->get_type = gst_soup_http_src_uri_get_type; iface->get_protocols = gst_soup_http_src_uri_get_protocols; iface->get_uri = gst_soup_http_src_uri_get_uri; iface->set_uri = gst_soup_http_src_uri_set_uri; }