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gstreamer/ext/neon/gstneonhttpsrc.c
Reynaldo H. Verdejo Pinochet 86ec812429 Remove unnecessary NULL checks before g_free() 
g_free() is NULL-safe
2015-11-18 16:05:42 -08:00

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/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
* Copyright (C) <2006> Rosfran Borges <rosfran.borges@indt.org.br>
* Copyright (C) <2006> Andre Moreira Magalhaes <andre.magalhaes@indt.org.br>
*
* 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 <stdlib.h>
#include <string.h>
#ifdef _HAVE_UNISTD_H
#include <unistd.h>
#endif /* _HAVE_UNISTD_H */
#include <ne_redirect.h>
#define STATUS_IS_REDIRECTION(status) ((status) >= 300 && (status) < 400)
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 3xx status code */
#define MAX_HTTP_REDIRECTS_NUMBER 5
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_AUTOMATIC_REDIRECT TRUE
#define DEFAULT_ACCEPT_SELF_SIGNED FALSE
#define DEFAULT_NEON_HTTP_DEBUG FALSE
#define DEFAULT_CONNECT_TIMEOUT 0
#define DEFAULT_READ_TIMEOUT 0
#define DEFAULT_IRADIO_MODE TRUE
enum
{
PROP_0,
PROP_LOCATION,
PROP_PROXY,
PROP_USER_AGENT,
PROP_COOKIES,
PROP_AUTOMATIC_REDIRECT,
PROP_ACCEPT_SELF_SIGNED,
PROP_CONNECT_TIMEOUT,
PROP_READ_TIMEOUT,
#ifndef GST_DISABLE_GST_DEBUG
PROP_NEON_HTTP_DEBUG,
#endif
PROP_IRADIO_MODE
};
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_fill (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_query (GstBaseSrc * bsrc, GstQuery * query);
static gboolean gst_neonhttp_src_set_proxy (GstNeonhttpSrc * src,
const gchar * uri);
static gboolean gst_neonhttp_src_set_location (GstNeonhttpSrc * src,
const gchar * uri, GError ** err);
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);
#define parent_class gst_neonhttp_src_parent_class
G_DEFINE_TYPE_WITH_CODE (GstNeonhttpSrc, gst_neonhttp_src, GST_TYPE_PUSH_SRC,
G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
gst_neonhttp_src_uri_handler_init));
static void
gst_neonhttp_src_class_init (GstNeonhttpSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpushsrc_class;
gobject_class = (GObjectClass *) klass;
element_class = (GstElementClass *) 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_PARAM_STATIC_STRINGS));
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_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",
"GStreamer neonhttpsrc", 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_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_ACCEPT_SELF_SIGNED,
g_param_spec_boolean ("accept-self-signed", "accept-self-signed",
"Accept self-signed SSL/TLS certificates",
DEFAULT_ACCEPT_SELF_SIGNED,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CONNECT_TIMEOUT,
g_param_spec_uint ("connect-timeout", "connect-timeout",
"Value in seconds to timeout a blocking connection (0 = default).", 0,
3600, DEFAULT_CONNECT_TIMEOUT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_READ_TIMEOUT,
g_param_spec_uint ("read-timeout", "read-timeout",
"Value in seconds to timeout a blocking read (0 = default).", 0,
3600, DEFAULT_READ_TIMEOUT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
#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 | G_PARAM_STATIC_STRINGS));
#endif
g_object_class_install_property (gobject_class, PROP_IRADIO_MODE,
g_param_spec_boolean ("iradio-mode", "iradio-mode",
"Enable internet radio mode (ask server to send shoutcast/icecast "
"metadata interleaved with the actual stream data)",
DEFAULT_IRADIO_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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);
gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_neonhttp_src_query);
gstpushsrc_class->fill = GST_DEBUG_FUNCPTR (gst_neonhttp_src_fill);
GST_DEBUG_CATEGORY_INIT (neonhttpsrc_debug, "neonhttpsrc", 0,
"NEON HTTP Client Source");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&srctemplate));
gst_element_class_set_static_metadata (element_class, "HTTP client source",
"Source/Network",
"Receive data as a client over the network via HTTP using NEON",
"Edgard Lima <edgard.lima@indt.org.br>, "
"Rosfran Borges <rosfran.borges@indt.org.br>, "
"Andre Moreira Magalhaes <andre.magalhaes@indt.org.br>");
}
static void
gst_neonhttp_src_init (GstNeonhttpSrc * src)
{
const gchar *str;
src->neon_http_debug = DEFAULT_NEON_HTTP_DEBUG;
src->user_agent = g_strdup (DEFAULT_USER_AGENT);
src->automatic_redirect = DEFAULT_AUTOMATIC_REDIRECT;
src->accept_self_signed = DEFAULT_ACCEPT_SELF_SIGNED;
src->connect_timeout = DEFAULT_CONNECT_TIMEOUT;
src->read_timeout = DEFAULT_READ_TIMEOUT;
src->iradio_mode = DEFAULT_IRADIO_MODE;
src->cookies = NULL;
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->seekable = TRUE;
gst_neonhttp_src_set_location (src, DEFAULT_LOCATION, NULL);
/* 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);
if (src->cookies) {
g_strfreev (src->cookies);
src->cookies = 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, NULL)) {
GST_WARNING ("badly formated location");
goto done;
}
break;
}
case PROP_USER_AGENT:
g_free (src->user_agent);
src->user_agent = g_strdup (g_value_get_string (value));
break;
case PROP_COOKIES:
if (src->cookies)
g_strfreev (src->cookies);
src->cookies = (gchar **) g_value_dup_boxed (value);
break;
case PROP_AUTOMATIC_REDIRECT:
src->automatic_redirect = g_value_get_boolean (value);
break;
case PROP_ACCEPT_SELF_SIGNED:
src->accept_self_signed = g_value_get_boolean (value);
break;
case PROP_CONNECT_TIMEOUT:
src->connect_timeout = g_value_get_uint (value);
break;
case PROP_READ_TIMEOUT:
src->read_timeout = g_value_get_uint (value);
break;
#ifndef GST_DISABLE_GST_DEBUG
case PROP_NEON_HTTP_DEBUG:
src->neon_http_debug = g_value_get_boolean (value);
break;
#endif
case PROP_IRADIO_MODE:
src->iradio_mode = g_value_get_boolean (value);
break;
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_static_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_static_string (value, "");
}
break;
}
case PROP_USER_AGENT:
g_value_set_string (value, neonhttpsrc->user_agent);
break;
case PROP_COOKIES:
g_value_set_boxed (value, neonhttpsrc->cookies);
break;
case PROP_AUTOMATIC_REDIRECT:
g_value_set_boolean (value, neonhttpsrc->automatic_redirect);
break;
case PROP_ACCEPT_SELF_SIGNED:
g_value_set_boolean (value, neonhttpsrc->accept_self_signed);
break;
case PROP_CONNECT_TIMEOUT:
g_value_set_uint (value, neonhttpsrc->connect_timeout);
break;
case PROP_READ_TIMEOUT:
g_value_set_uint (value, neonhttpsrc->read_timeout);
break;
#ifndef GST_DISABLE_GST_DEBUG
case PROP_NEON_HTTP_DEBUG:
g_value_set_boolean (value, neonhttpsrc->neon_http_debug);
break;
#endif
case PROP_IRADIO_MODE:
g_value_set_boolean (value, neonhttpsrc->iradio_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* NEON CALLBACK */
static void
oom_callback (void)
{
GST_ERROR ("memory exeception in neon");
}
static GstFlowReturn
gst_neonhttp_src_fill (GstPushSrc * psrc, GstBuffer * outbuf)
{
GstNeonhttpSrc *src;
gint read;
src = GST_NEONHTTP_SRC (psrc);
/* The caller should know the number of bytes and not read beyond EOS. */
if (G_UNLIKELY (src->eos))
goto eos;
read = gst_neonhttp_src_request_dispatch (src, outbuf);
if (G_UNLIKELY (read < 0))
goto read_error;
GST_LOG_OBJECT (src, "returning %" G_GSIZE_FORMAT " bytes, "
"offset %" G_GUINT64_FORMAT, gst_buffer_get_size (outbuf),
GST_BUFFER_OFFSET (outbuf));
return GST_FLOW_OK;
/* ERRORS */
eos:
{
GST_DEBUG_OBJECT (src, "EOS reached");
return GST_FLOW_EOS;
}
read_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, READ,
(NULL), ("Could not read any bytes (%i, %s)", read,
ne_get_error (src->session)));
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);
res = ne_sock_init ();
if (res != 0)
goto init_failed;
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) {
goto socket_error;
} else if (res == HTTP_REQUEST_WRONG_PROXY) {
goto wrong_proxy;
} else {
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 (TRUE) {
/* Icecast stuff */
const gchar *str_value;
GstTagList *tags;
gchar *iradio_name;
gchar *iradio_url;
gchar *iradio_genre;
gint icy_metaint;
tags = gst_tag_list_new_empty ();
str_value = ne_get_response_header (src->request, "icy-metaint");
if (str_value) {
if (sscanf (str_value, "%d", &icy_metaint) == 1) {
GstCaps *icy_caps;
icy_caps = gst_caps_new_simple ("application/x-icy",
"metadata-interval", G_TYPE_INT, icy_metaint, NULL);
gst_base_src_set_caps (GST_BASE_SRC (src), icy_caps);
}
}
/* FIXME: send tags with name, genre, url */
str_value = ne_get_response_header (src->request, "icy-name");
if (str_value) {
iradio_name = gst_neonhttp_src_unicodify (str_value);
if (iradio_name) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ORGANIZATION,
iradio_name, NULL);
g_free (iradio_name);
}
}
str_value = ne_get_response_header (src->request, "icy-genre");
if (str_value) {
iradio_genre = gst_neonhttp_src_unicodify (str_value);
if (iradio_genre) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_GENRE,
iradio_genre, NULL);
g_free (iradio_genre);
}
}
str_value = ne_get_response_header (src->request, "icy-url");
if (str_value) {
iradio_url = gst_neonhttp_src_unicodify (str_value);
if (iradio_url) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_LOCATION,
iradio_url, NULL);
g_free (iradio_url);
}
}
if (!gst_tag_list_is_empty (tags)) {
GST_DEBUG_OBJECT (src, "pushing tag list %" GST_PTR_FORMAT, tags);
gst_pad_push_event (GST_BASE_SRC_PAD (src), gst_event_new_tag (tags));
} else {
gst_tag_list_unref (tags);
}
}
return TRUE;
/* ERRORS */
init_failed:
{
GST_ELEMENT_ERROR (src, LIBRARY, INIT, (NULL),
("ne_sock_init() failed: %d", res));
return FALSE;
}
socket_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("HTTP Request failed when opening socket: %d", res));
return FALSE;
}
wrong_proxy:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("Proxy Server URI is invalid - make sure that either both proxy host "
"and port are specified or neither."));
return FALSE;
}
begin_req_failed:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not begin request: %d", 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);
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_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstNeonhttpSrc *src = GST_NEONHTTP_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);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_SCHEDULING:{
GstSchedulingFlags flags;
gint minsize, maxsize, align;
gst_query_parse_scheduling (query, &flags, &minsize, &maxsize, &align);
flags |= GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED;
gst_query_set_scheduling (query, flags, minsize, maxsize, align);
break;
}
default:
break;
}
return ret;
}
static gboolean
gst_neonhttp_src_set_location (GstNeonhttpSrc * src, const gchar * uri,
GError ** err)
{
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;
}
}
static int
ssl_verify_callback (void *data, int failures, const ne_ssl_certificate * cert)
{
GstNeonhttpSrc *src = GST_NEONHTTP_SRC (data);
if ((failures & NE_SSL_UNTRUSTED) &&
src->accept_self_signed && !ne_ssl_cert_signedby (cert)) {
GST_ELEMENT_INFO (src, RESOURCE, READ,
(NULL), ("Accepting self-signed server certificate"));
failures &= ~NE_SSL_UNTRUSTED;
}
if (failures & NE_SSL_NOTYETVALID)
GST_ELEMENT_ERROR (src, RESOURCE, READ,
(NULL), ("Server certificate not valid yet"));
if (failures & NE_SSL_EXPIRED)
GST_ELEMENT_ERROR (src, RESOURCE, READ,
(NULL), ("Server certificate has expired"));
if (failures & NE_SSL_IDMISMATCH)
GST_ELEMENT_ERROR (src, RESOURCE, READ,
(NULL), ("Server certificate doesn't match hostname"));
if (failures & NE_SSL_UNTRUSTED)
GST_ELEMENT_ERROR (src, RESOURCE, READ,
(NULL), ("Server certificate signer not trusted"));
GST_DEBUG_OBJECT (src, "failures: %d\n", failures);
return failures;
}
/* Try to send the HTTP request to the Icecast server, and if possible deals with
* all the probable redirections (HTTP status code == 3xx)
*/
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;
gchar **c;
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);
}
if (src->connect_timeout > 0) {
ne_set_connect_timeout (session, src->connect_timeout);
}
if (src->read_timeout > 0) {
ne_set_read_timeout (session, src->read_timeout);
}
ne_set_session_flag (session, NE_SESSFLAG_ICYPROTO, 1);
ne_ssl_set_verify (session, ssl_verify_callback, src);
request = ne_request_create (session, "GET", src->query_string);
if (src->user_agent) {
ne_add_request_header (request, "User-Agent", src->user_agent);
}
for (c = src->cookies; c != NULL && *c != NULL; ++c) {
GST_INFO ("Adding header Cookie : %s", *c);
ne_add_request_header (request, "Cookies", *c);
}
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 3xx, 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 (STATUS_IS_REDIRECTION (http_status) && 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, NULL);
GST_LOG_OBJECT (src, "Got HTTP Status Code %d", http_status);
GST_LOG_OBJECT (src, "Using 'Location' header [%s]", src->uri.host);
}
}
}
if ((res != NE_OK) ||
(offset == 0 && http_status != 200) ||
(offset > 0 && http_status != 206 &&
!STATUS_IS_REDIRECTION (http_status))) {
ne_request_destroy (request);
request = NULL;
ne_close_connection (session);
ne_session_destroy (session);
session = NULL;
if (offset > 0 && http_status != 206 &&
!STATUS_IS_REDIRECTION (http_status)) {
src->seekable = FALSE;
}
}
/* if - NE_OK */
if (STATUS_IS_REDIRECTION (http_status) && do_redir) {
++request_count;
GST_LOG_OBJECT (src, "redirect request_count is now %d", request_count);
if (request_count < MAX_HTTP_REDIRECTS_NUMBER && do_redir) {
GST_INFO_OBJECT (src, "Redirecting to %s", src->uri.host);
} else {
GST_WARNING_OBJECT (src, "Will not redirect, try again with a "
"different URI or redirect location %s", src->uri.host);
}
/* FIXME: when not redirecting automatically, shouldn't we post a
* redirect element message on the bus? */
}
/* do the redirect, go back to send another HTTP request now using the 'Location' */
} while (do_redir && (request_count < MAX_HTTP_REDIRECTS_NUMBER)
&& STATUS_IS_REDIRECTION (http_status));
if (session) {
*ses = session;
*req = request;
}
return res;
}
static gint
gst_neonhttp_src_request_dispatch (GstNeonhttpSrc * src, GstBuffer * outbuf)
{
GstMapInfo map = GST_MAP_INFO_INIT;
gint ret;
gint read = 0;
gint sizetoread;
/* Loop sending the request:
* Retry whilst authentication fails and we supply it. */
ssize_t len = 0;
if (!gst_buffer_map (outbuf, &map, GST_MAP_WRITE))
return -1;
sizetoread = map.size;
while (sizetoread > 0) {
len = ne_read_response_block (src->request, (gchar *) map.data + read,
sizetoread);
if (len > 0) {
read += len;
sizetoread -= len;
} else {
break;
}
}
gst_buffer_set_size (outbuf, read);
GST_BUFFER_OFFSET (outbuf) = src->read_position;
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:
gst_buffer_unmap (outbuf, &map);
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 (GType type)
{
return GST_URI_SRC;
}
static const gchar *const *
gst_neonhttp_src_uri_get_protocols (GType type)
{
static const gchar *protocols[] = { "http", "https", NULL };
return protocols;
}
static gchar *
gst_neonhttp_src_uri_get_uri (GstURIHandler * handler)
{
GstNeonhttpSrc *src = GST_NEONHTTP_SRC (handler);
/* FIXME: make thread-safe */
return g_strdup (src->location);
}
static gboolean
gst_neonhttp_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** error)
{
GstNeonhttpSrc *src = GST_NEONHTTP_SRC (handler);
return gst_neonhttp_src_set_location (src, uri, error);
}
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;
}
/* 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)
{
GST_DEBUG_CATEGORY_INIT (neonhttpsrc_debug, "neonhttpsrc", 0,
"NEON HTTP src");
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, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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