/* GStreamer * Copyright (C) <2005> Edgard Lima * Copyright (C) <2006> Rosfran Borges * Copyright (C) <2006> Andre Moreira Magalhaes * * 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 */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "gstneonhttpsrc.h" #include #include #ifdef _HAVE_UNISTD_H #include #endif /* _HAVE_UNISTD_H */ #include GST_DEBUG_CATEGORY_STATIC (neonhttpsrc_debug); #define GST_CAT_DEFAULT neonhttpsrc_debug #define MAX_READ_SIZE (4 * 1024) /* max number of HTTP redirects, when iterating over a sequence of HTTP 302 status code */ #define MAX_HTTP_REDIRECTS_NUMBER 5 static const GstElementDetails gst_neonhttp_src_details = GST_ELEMENT_DETAILS ("HTTP client source", "Source/Network", "Receive data as a client over the network via HTTP using NEON", "Edgard Lima , " "Rosfran Borges , " "Andre Moreira Magalhaes "); static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS_ANY); #define HTTP_SOCKET_ERROR -2 #define HTTP_REQUEST_WRONG_PROXY -1 #define HTTP_DEFAULT_PORT 80 #define HTTPS_DEFAULT_PORT 443 #define HTTP_DEFAULT_HOST "localhost" /* default properties */ #define DEFAULT_LOCATION "http://"HTTP_DEFAULT_HOST":"G_STRINGIFY(HTTP_DEFAULT_PORT) #define DEFAULT_PROXY "" #define DEFAULT_USER_AGENT "GStreamer neonhttpsrc" #define DEFAULT_IRADIO_MODE FALSE #define DEFAULT_IRADIO_NAME NULL #define DEFAULT_IRADIO_GENRE NULL #define DEFAULT_IRADIO_URL NULL #define DEFAULT_AUTOMATIC_REDIRECT TRUE #define DEFAULT_NEON_HTTP_DEBUG FALSE enum { PROP_0, PROP_LOCATION, PROP_PROXY, PROP_USER_AGENT, PROP_IRADIO_MODE, PROP_IRADIO_NAME, PROP_IRADIO_GENRE, PROP_IRADIO_URL, PROP_AUTOMATIC_REDIRECT, #ifndef GST_DISABLE_GST_DEBUG PROP_NEON_HTTP_DEBUG #endif }; static void gst_neonhttp_src_uri_handler_init (gpointer g_iface, gpointer iface_data); static void gst_neonhttp_src_dispose (GObject * gobject); static void gst_neonhttp_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_neonhttp_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static GstFlowReturn gst_neonhttp_src_create (GstPushSrc * psrc, GstBuffer ** outbuf); static gboolean gst_neonhttp_src_start (GstBaseSrc * bsrc); static gboolean gst_neonhttp_src_stop (GstBaseSrc * bsrc); static gboolean gst_neonhttp_src_get_size (GstBaseSrc * bsrc, guint64 * size); static gboolean gst_neonhttp_src_is_seekable (GstBaseSrc * bsrc); static gboolean gst_neonhttp_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment); static gboolean gst_neonhttp_src_set_proxy (GstNeonhttpSrc * src, const gchar * uri); static gboolean gst_neonhttp_src_set_location (GstNeonhttpSrc * src, const gchar * uri); static gint gst_neonhttp_src_send_request_and_redirect (GstNeonhttpSrc * src, ne_session ** ses, ne_request ** req, gint64 offset, gboolean do_redir); static gint gst_neonhttp_src_request_dispatch (GstNeonhttpSrc * src, GstBuffer * outbuf); static void gst_neonhttp_src_close_session (GstNeonhttpSrc * src); static gchar *gst_neonhttp_src_unicodify (const gchar * str); static void oom_callback (void); static void _urihandler_init (GType type) { static const GInterfaceInfo urihandler_info = { gst_neonhttp_src_uri_handler_init, NULL, NULL }; g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info); GST_DEBUG_CATEGORY_INIT (neonhttpsrc_debug, "neonhttpsrc", 0, "NEON HTTP src"); } GST_BOILERPLATE_FULL (GstNeonhttpSrc, gst_neonhttp_src, GstPushSrc, GST_TYPE_PUSH_SRC, _urihandler_init); static void gst_neonhttp_src_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&srctemplate)); gst_element_class_set_details (element_class, &gst_neonhttp_src_details); } static void gst_neonhttp_src_class_init (GstNeonhttpSrcClass * klass) { GObjectClass *gobject_class; GstBaseSrcClass *gstbasesrc_class; GstPushSrcClass *gstpushsrc_class; gobject_class = (GObjectClass *) klass; gstbasesrc_class = (GstBaseSrcClass *) klass; gstpushsrc_class = (GstPushSrcClass *) klass; gobject_class->set_property = gst_neonhttp_src_set_property; gobject_class->get_property = gst_neonhttp_src_get_property; gobject_class->dispose = gst_neonhttp_src_dispose; g_object_class_install_property (gobject_class, PROP_LOCATION, g_param_spec_string ("location", "Location", "Location to read from", "", G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_PROXY, g_param_spec_string ("proxy", "Proxy", "Proxy server to use, in the form HOSTNAME:PORT. " "Defaults to the http_proxy environment variable", "", G_PARAM_READWRITE)); 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", "GStreamer neonhttpsrc", G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_IRADIO_MODE, g_param_spec_boolean ("iradio-mode", "iradio-mode", "Enable internet radio mode (extraction of shoutcast/icecast metadata)", FALSE, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_IRADIO_NAME, g_param_spec_string ("iradio-name", "iradio-name", "Name of the stream", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_IRADIO_GENRE, g_param_spec_string ("iradio-genre", "iradio-genre", "Genre of the stream", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_IRADIO_URL, g_param_spec_string ("iradio-url", "iradio-url", "Homepage URL for radio stream", NULL, G_PARAM_READABLE)); 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 302)", TRUE, G_PARAM_READWRITE)); #ifndef GST_DISABLE_GST_DEBUG g_object_class_install_property (gobject_class, PROP_NEON_HTTP_DEBUG, g_param_spec_boolean ("neon-http-debug", "neon-http-debug", "Enable Neon HTTP debug messages", DEFAULT_NEON_HTTP_DEBUG, G_PARAM_READWRITE)); #endif gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_neonhttp_src_start); gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_neonhttp_src_stop); gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_neonhttp_src_get_size); gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_neonhttp_src_is_seekable); gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_neonhttp_src_do_seek); gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_neonhttp_src_create); GST_DEBUG_CATEGORY_INIT (neonhttpsrc_debug, "neonhttpsrc", 0, "NEON HTTP Client Source"); } static void gst_neonhttp_src_init (GstNeonhttpSrc * src, GstNeonhttpSrcClass * g_class) { const gchar *str; src->neon_http_debug = DEFAULT_NEON_HTTP_DEBUG; src->iradio_mode = DEFAULT_IRADIO_MODE; src->iradio_name = DEFAULT_IRADIO_NAME; src->iradio_genre = DEFAULT_IRADIO_GENRE; src->iradio_url = DEFAULT_IRADIO_URL; src->user_agent = g_strdup (DEFAULT_USER_AGENT); src->automatic_redirect = DEFAULT_AUTOMATIC_REDIRECT; src->session = NULL; src->request = NULL; memset (&src->uri, 0, sizeof (src->uri)); memset (&src->proxy, 0, sizeof (src->proxy)); src->content_size = -1; src->icy_caps = NULL; src->icy_metaint = 0; src->seekable = TRUE; gst_neonhttp_src_set_location (src, DEFAULT_LOCATION); /* configure proxy */ str = g_getenv ("http_proxy"); if (str && !gst_neonhttp_src_set_proxy (src, str)) { GST_WARNING_OBJECT (src, "The proxy set on http_proxy env var ('%s') cannot be parsed.", str); } } static void gst_neonhttp_src_dispose (GObject * gobject) { GstNeonhttpSrc *src = GST_NEONHTTP_SRC (gobject); ne_uri_free (&src->uri); ne_uri_free (&src->proxy); g_free (src->user_agent); g_free (src->iradio_name); g_free (src->iradio_genre); g_free (src->iradio_url); if (src->icy_caps) { gst_caps_unref (src->icy_caps); src->icy_caps = NULL; } if (src->request) { ne_request_destroy (src->request); src->request = NULL; } if (src->session) { ne_close_connection (src->session); ne_session_destroy (src->session); src->session = NULL; } if (src->location) { ne_free (src->location); } if (src->query_string) { ne_free (src->query_string); } G_OBJECT_CLASS (parent_class)->dispose (gobject); } static void gst_neonhttp_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstNeonhttpSrc *src = GST_NEONHTTP_SRC (object); switch (prop_id) { 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_neonhttp_src_set_proxy (src, proxy)) { GST_WARNING ("badly formated proxy"); goto done; } break; } 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_neonhttp_src_set_location (src, location)) { GST_WARNING ("badly formated location"); goto done; } break; } case PROP_USER_AGENT: { if (src->user_agent) g_free (src->user_agent); src->user_agent = g_strdup (g_value_get_string (value)); break; } case PROP_IRADIO_MODE: { src->iradio_mode = g_value_get_boolean (value); break; } case PROP_AUTOMATIC_REDIRECT: { src->automatic_redirect = g_value_get_boolean (value); break; } #ifndef GST_DISABLE_GST_DEBUG case PROP_NEON_HTTP_DEBUG: { src->neon_http_debug = g_value_get_boolean (value); break; } #endif default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } done: return; } static void gst_neonhttp_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstNeonhttpSrc *neonhttpsrc = GST_NEONHTTP_SRC (object); switch (prop_id) { case PROP_PROXY: { gchar *str; if (neonhttpsrc->proxy.host) { str = ne_uri_unparse (&neonhttpsrc->proxy); if (!str) break; g_value_set_string (value, str); ne_free (str); } else { g_value_set_string (value, ""); } break; } case PROP_LOCATION: { gchar *str; if (neonhttpsrc->uri.host) { str = ne_uri_unparse (&neonhttpsrc->uri); if (!str) break; g_value_set_string (value, str); ne_free (str); } else { g_value_set_string (value, ""); } break; } case PROP_USER_AGENT: { g_value_set_string (value, neonhttpsrc->user_agent); break; } case PROP_IRADIO_MODE: g_value_set_boolean (value, neonhttpsrc->iradio_mode); break; case PROP_IRADIO_NAME: g_value_set_string (value, neonhttpsrc->iradio_name); break; case PROP_IRADIO_GENRE: g_value_set_string (value, neonhttpsrc->iradio_genre); break; case PROP_IRADIO_URL: g_value_set_string (value, neonhttpsrc->iradio_url); break; case PROP_AUTOMATIC_REDIRECT: g_value_set_boolean (value, neonhttpsrc->automatic_redirect); break; #ifndef GST_DISABLE_GST_DEBUG case PROP_NEON_HTTP_DEBUG: g_value_set_boolean (value, neonhttpsrc->neon_http_debug); break; #endif default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static GstFlowReturn gst_neonhttp_src_create (GstPushSrc * psrc, GstBuffer ** outbuf) { GstNeonhttpSrc *src; GstBaseSrc *basesrc; GstFlowReturn ret; gint read; src = GST_NEONHTTP_SRC (psrc); basesrc = GST_BASE_SRC_CAST (psrc); /* The caller should know the number of bytes and not read beyond EOS. */ if (G_UNLIKELY (src->eos)) goto eos; /* Create the buffer. */ ret = gst_pad_alloc_buffer (GST_BASE_SRC_PAD (basesrc), basesrc->segment.last_stop, basesrc->blocksize, src->icy_caps ? src->icy_caps : GST_PAD_CAPS (GST_BASE_SRC_PAD (basesrc)), outbuf); if (G_UNLIKELY (ret != GST_FLOW_OK)) goto done; read = gst_neonhttp_src_request_dispatch (src, *outbuf); if (G_UNLIKELY (read < 0)) goto read_error; GST_LOG_OBJECT (src, "returning %u bytes", GST_BUFFER_SIZE (*outbuf)); done: return ret; /* ERRORS */ eos: { GST_DEBUG_OBJECT (src, "EOS reached"); return GST_FLOW_UNEXPECTED; } read_error: { GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL), ("Could not read any bytes (%i, %s)", read, ne_get_error (src->session))); gst_buffer_unref (*outbuf); *outbuf = NULL; return GST_FLOW_ERROR; } } /* create a socket for connecting to remote server */ static gboolean gst_neonhttp_src_start (GstBaseSrc * bsrc) { GstNeonhttpSrc *src = GST_NEONHTTP_SRC (bsrc); const gchar *content_length; gint res; #ifndef GST_DISABLE_GST_DEBUG if (src->neon_http_debug) ne_debug_init (stderr, NE_DBG_HTTP); #endif ne_oom_callback (oom_callback); if (ne_sock_init () != 0) return FALSE; res = gst_neonhttp_src_send_request_and_redirect (src, &src->session, &src->request, 0, src->automatic_redirect); if (res != NE_OK || !src->session) { if (res == HTTP_SOCKET_ERROR) { #ifndef GST_DISABLE_GST_DEBUG if (src->neon_http_debug) { GST_ERROR_OBJECT (src, "HTTP Request failed when opening socket!"); } #endif goto init_failed; } else if (res == HTTP_REQUEST_WRONG_PROXY) { #ifndef GST_DISABLE_GST_DEBUG if (src->neon_http_debug) { GST_ERROR_OBJECT (src, "Proxy Server URI is invalid to the HTTP Request!"); } #endif goto wrong_proxy; } else { #ifndef GST_DISABLE_GST_DEBUG if (src->neon_http_debug) { GST_ERROR_OBJECT (src, "HTTP Request failed, error unrecognized!"); } #endif goto begin_req_failed; } } content_length = ne_get_response_header (src->request, "Content-Length"); if (content_length) src->content_size = g_ascii_strtoull (content_length, NULL, 10); else src->content_size = -1; if (src->iradio_mode) { /* Icecast stuff */ const gchar *str_value; gint gint_value; str_value = ne_get_response_header (src->request, "icy-metaint"); if (str_value) { if (sscanf (str_value, "%d", &gint_value) == 1) { if (src->icy_caps) { gst_caps_unref (src->icy_caps); src->icy_caps = NULL; } src->icy_metaint = gint_value; src->icy_caps = gst_caps_new_simple ("application/x-icy", "metadata-interval", G_TYPE_INT, src->icy_metaint, NULL); } } str_value = ne_get_response_header (src->request, "icy-name"); if (str_value) { if (src->iradio_name) { g_free (src->iradio_name); src->iradio_name = NULL; } src->iradio_name = gst_neonhttp_src_unicodify (str_value); } str_value = ne_get_response_header (src->request, "icy-genre"); if (str_value) { if (src->iradio_genre) { g_free (src->iradio_genre); src->iradio_genre = NULL; } src->iradio_genre = gst_neonhttp_src_unicodify (str_value); } str_value = ne_get_response_header (src->request, "icy-url"); if (str_value) { if (src->iradio_url) { g_free (src->iradio_url); src->iradio_url = NULL; } src->iradio_url = gst_neonhttp_src_unicodify (str_value); } } return TRUE; /* ERRORS */ init_failed: { GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL), ("Could not initialize neon library (%i)", res)); return FALSE; } wrong_proxy: { GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL), ("Both proxy host and port must be specified or none")); return FALSE; } begin_req_failed: { GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL), ("Could not begin request (%i)", res)); return FALSE; } } /* close the socket and associated resources * used both to recover from errors and go to NULL state */ static gboolean gst_neonhttp_src_stop (GstBaseSrc * bsrc) { GstNeonhttpSrc *src; src = GST_NEONHTTP_SRC (bsrc); if (src->iradio_name) { g_free (src->iradio_name); src->iradio_name = NULL; } if (src->iradio_genre) { g_free (src->iradio_genre); src->iradio_genre = NULL; } if (src->iradio_url) { g_free (src->iradio_url); src->iradio_url = NULL; } if (src->icy_caps) { gst_caps_unref (src->icy_caps); src->icy_caps = NULL; } src->eos = FALSE; src->content_size = -1; src->read_position = 0; src->seekable = TRUE; gst_neonhttp_src_close_session (src); #ifndef GST_DISABLE_GST_DEBUG ne_debug_init (NULL, 0); #endif ne_oom_callback (NULL); ne_sock_exit (); return TRUE; } static gboolean gst_neonhttp_src_get_size (GstBaseSrc * bsrc, guint64 * size) { GstNeonhttpSrc *src; src = GST_NEONHTTP_SRC (bsrc); if (src->content_size == -1) return FALSE; *size = src->content_size; return TRUE; } static gboolean gst_neonhttp_src_is_seekable (GstBaseSrc * bsrc) { return TRUE; } static gboolean gst_neonhttp_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment) { GstNeonhttpSrc *src; gint res; ne_session *session = NULL; ne_request *request = NULL; src = GST_NEONHTTP_SRC (bsrc); if (!src->seekable) return FALSE; if (src->read_position == segment->start) return TRUE; res = gst_neonhttp_src_send_request_and_redirect (src, &session, &request, segment->start, src->automatic_redirect); /* if we are able to seek, replace the session */ if (res == NE_OK && session) { gst_neonhttp_src_close_session (src); src->session = session; src->request = request; src->read_position = segment->start; return TRUE; } return FALSE; } static gboolean gst_neonhttp_src_set_location (GstNeonhttpSrc * src, const gchar * uri) { ne_uri_free (&src->uri); if (src->location) { ne_free (src->location); src->location = NULL; } if (src->query_string) { ne_free (src->query_string); src->query_string = NULL; } if (ne_uri_parse (uri, &src->uri) != 0) goto parse_error; if (src->uri.scheme == NULL) src->uri.scheme = g_strdup ("http"); if (src->uri.host == NULL) src->uri.host = g_strdup (DEFAULT_LOCATION); if (src->uri.port == 0) { if (!strcmp (src->uri.scheme, "https")) src->uri.port = HTTPS_DEFAULT_PORT; else src->uri.port = HTTP_DEFAULT_PORT; } if (!src->uri.path) src->uri.path = g_strdup (""); src->query_string = g_strjoin ("?", src->uri.path, src->uri.query, NULL); src->location = ne_uri_unparse (&src->uri); return TRUE; /* ERRORS */ parse_error: { if (src->location) { ne_free (src->location); src->location = NULL; } if (src->query_string) { ne_free (src->query_string); src->query_string = NULL; } ne_uri_free (&src->uri); return FALSE; } } static gboolean gst_neonhttp_src_set_proxy (GstNeonhttpSrc * src, const char *uri) { ne_uri_free (&src->proxy); if (ne_uri_parse (uri, &src->proxy) != 0) goto error; if (src->proxy.scheme) GST_WARNING ("The proxy schema shouldn't be defined (schema is '%s')", src->proxy.scheme); if (src->proxy.host && !src->proxy.port) goto error; if (!src->proxy.path || src->proxy.userinfo) goto error; return TRUE; /* ERRORS */ error: { ne_uri_free (&src->proxy); return FALSE; } } /* Try to send the HTTP request to the Icecast server, and if possible deals with * all the probable redirections (HTTP status code == 302) */ static gint gst_neonhttp_src_send_request_and_redirect (GstNeonhttpSrc * src, ne_session ** ses, ne_request ** req, gint64 offset, gboolean do_redir) { ne_session *session = NULL; ne_request *request = NULL; gint res; gint http_status = 0; guint request_count = 0; do { if (src->proxy.host && src->proxy.port) { session = ne_session_create (src->uri.scheme, src->uri.host, src->uri.port); ne_session_proxy (session, src->proxy.host, src->proxy.port); } else if (src->proxy.host || src->proxy.port) { /* both proxy host and port must be specified or none */ return HTTP_REQUEST_WRONG_PROXY; } else { session = ne_session_create (src->uri.scheme, src->uri.host, src->uri.port); } ne_set_session_flag (session, NE_SESSFLAG_ICYPROTO, 1); request = ne_request_create (session, "GET", src->query_string); if (src->user_agent) { ne_add_request_header (request, "User-Agent", src->user_agent); } if (src->iradio_mode) { ne_add_request_header (request, "icy-metadata", "1"); } if (offset > 0) { ne_print_request_header (request, "Range", "bytes=%" G_GINT64_FORMAT "-", offset); } res = ne_begin_request (request); if (res == NE_OK) { /* When the HTTP status code is 302, it is not the SHOUTcast streaming content yet; * Reload the HTTP request with a new URI value */ http_status = ne_get_status (request)->code; if (http_status == 302 && do_redir) { const gchar *redir; /* the new URI value to go when redirecting can be found on the 'Location' HTTP header */ redir = ne_get_response_header (request, "Location"); if (redir != NULL) { ne_uri_free (&src->uri); gst_neonhttp_src_set_location (src, redir); #ifndef GST_DISABLE_GST_DEBUG if (src->neon_http_debug) GST_LOG_OBJECT (src, "--> Got HTTP Status Code %d; Using 'Location' header [%s]", http_status, src->uri.host); #endif } } } if ((res != NE_OK) || (offset == 0 && http_status != 200) || (offset > 0 && http_status != 206 && http_status != 302)) { ne_request_destroy (request); request = NULL; ne_close_connection (session); ne_session_destroy (session); session = NULL; if (offset > 0 && http_status != 206 && http_status != 302) { src->seekable = FALSE; } } /* if - NE_OK */ if (http_status == 302 && do_redir) { ++request_count; GST_WARNING_OBJECT (src, "%s %s.", (request_count < MAX_HTTP_REDIRECTS_NUMBER) && do_redir ? "Redirecting to" : "WILL NOT redirect, try it again with a different URI; an alternative is", src->uri.host); /* FIXME: when not redirecting automatically, shouldn't we post a * redirect element message on the bus? */ #ifndef GST_DISABLE_GST_DEBUG if (src->neon_http_debug) GST_LOG_OBJECT (src, "--> request_count = %d", request_count); #endif } /* do the redirect, go back to send another HTTP request now using the 'Location' */ } while (do_redir && (request_count < MAX_HTTP_REDIRECTS_NUMBER) && http_status == 302); if (session) { *ses = session; *req = request; } return res; } static gint gst_neonhttp_src_request_dispatch (GstNeonhttpSrc * src, GstBuffer * outbuf) { gint ret; gint read = 0; gint sizetoread = GST_BUFFER_SIZE (outbuf); /* Loop sending the request: * Retry whilst authentication fails and we supply it. */ ssize_t len = 0; while (sizetoread > 0) { len = ne_read_response_block (src->request, (gchar *) GST_BUFFER_DATA (outbuf) + read, sizetoread); if (len > 0) { read += len; sizetoread -= len; } else { break; } } GST_BUFFER_SIZE (outbuf) = read; if (len < 0) { read = -2; goto done; } else if (len == 0) { ret = ne_end_request (src->request); if (ret != NE_RETRY) { if (ret == NE_OK) { src->eos = TRUE; } else { read = -3; } } goto done; } if (read > 0) src->read_position += read; done: return read; } static void gst_neonhttp_src_close_session (GstNeonhttpSrc * src) { if (src->request) { ne_request_destroy (src->request); src->request = NULL; } if (src->session) { ne_close_connection (src->session); ne_session_destroy (src->session); src->session = NULL; } } /* The following two charset mangling functions were copied from gnomevfssrc. * Preserve them under the unverified assumption that they do something vaguely * worthwhile. */ static gchar * unicodify (const gchar * str, gint len, ...) { gchar *ret = NULL, *cset; va_list args; gsize bytes_read, bytes_written; if (g_utf8_validate (str, len, NULL)) return g_strndup (str, len >= 0 ? len : strlen (str)); va_start (args, len); while ((cset = va_arg (args, gchar *)) != NULL) { if (!strcmp (cset, "locale")) ret = g_locale_to_utf8 (str, len, &bytes_read, &bytes_written, NULL); else ret = g_convert (str, len, "UTF-8", cset, &bytes_read, &bytes_written, NULL); if (ret) break; } va_end (args); return ret; } static gchar * gst_neonhttp_src_unicodify (const gchar * str) { return unicodify (str, -1, "locale", "ISO-8859-1", NULL); } /* GstURIHandler Interface */ static guint gst_neonhttp_src_uri_get_type (void) { return GST_URI_SRC; } static gchar ** gst_neonhttp_src_uri_get_protocols (void) { static gchar *protocols[] = { "http", "https", NULL }; return protocols; } static const gchar * gst_neonhttp_src_uri_get_uri (GstURIHandler * handler) { GstNeonhttpSrc *src = GST_NEONHTTP_SRC (handler); return src->location; } static gboolean gst_neonhttp_src_uri_set_uri (GstURIHandler * handler, const gchar * uri) { GstNeonhttpSrc *src = GST_NEONHTTP_SRC (handler); return gst_neonhttp_src_set_location (src, uri); } static void gst_neonhttp_src_uri_handler_init (gpointer g_iface, gpointer iface_data) { GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface; iface->get_type = gst_neonhttp_src_uri_get_type; iface->get_protocols = gst_neonhttp_src_uri_get_protocols; iface->get_uri = gst_neonhttp_src_uri_get_uri; iface->set_uri = gst_neonhttp_src_uri_set_uri; } /* NEON CALLBACK */ static void oom_callback () { GST_ERROR ("memory exeception in neon"); } /* entry point to initialize the plug-in * initialize the plug-in itself * register the element factories and pad templates * register the features */ static gboolean plugin_init (GstPlugin * plugin) { return gst_element_register (plugin, "neonhttpsrc", GST_RANK_NONE, GST_TYPE_NEONHTTP_SRC); } /* this is the structure that gst-register looks for * so keep the name plugin_desc, or you cannot get your plug-in registered */ GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "neon", "lib neon http client src", plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")