gstreamer/subprojects/gst-plugins-bad/ext/curl/gstcurlhttpsrc.h

237 lines
7.4 KiB
C

/*
* GstCurlHttpSrc
* Copyright 2017 British Broadcasting Corporation - Research and Development
*
* Author: Sam Hurst <samuelh@rd.bbc.co.uk>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* 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 details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* This header file contains definitions only for
*/
#ifndef GSTCURLHTTPSRC_H_
#define GSTCURLHTTPSRC_H_
#include <gst/gst.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <gst/base/gstpushsrc.h>
#include "curltask.h"
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
#define GST_TYPE_CURLHTTPSRC \
(gst_curl_http_src_get_type())
#define GST_CURLHTTPSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CURLHTTPSRC,GstCurlHttpSrc))
#define GST_CURLHTTPSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CURLHTTPSRC,GstCurlHttpSrcClass))
#define GST_IS_CURLHTTPSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CURLHTTPSRC))
#define GST_IS_CURLHTTPSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CURLHTTPSRC))
#if GSTCURL_FUNCTIONTRACE
#define GSTCURL_FUNCTION_ENTRY(x) GST_DEBUG_OBJECT(x, "Entering function");
#define GSTCURL_FUNCTION_EXIT(x) GST_DEBUG_OBJECT(x, "Leaving function");
#else
#define GSTCURL_FUNCTION_ENTRY(x)
#define GSTCURL_FUNCTION_EXIT(x)
#endif
typedef struct _GstCurlHttpSrc GstCurlHttpSrc;
typedef struct _GstCurlHttpSrcClass GstCurlHttpSrcClass;
typedef struct _GstCurlHttpSrcMultiTaskContext GstCurlHttpSrcMultiTaskContext;
typedef struct _GstCurlHttpSrcQueueElement GstCurlHttpSrcQueueElement;
#define HTTP_HEADERS_NAME "http-headers"
#define HTTP_STATUS_CODE "http-status-code"
#define URI_NAME "uri"
#define REQUEST_HEADERS_NAME "request-headers"
#define RESPONSE_HEADERS_NAME "response-headers"
#define REDIRECT_URI_NAME "redirection-uri"
typedef enum
{
GSTCURL_HTTP_VERSION_1_0,
GSTCURL_HTTP_VERSION_1_1,
#ifdef CURL_VERSION_HTTP2
GSTCURL_HTTP_VERSION_2_0,
#endif
GSTCURL_HTTP_NOT, /* For future use if HTTP protocol not used! */
GSTCURL_HTTP_VERSION_MAX
} GstCurlHttpVersion;
typedef enum _GstCGstCurlHttpSrcSeekable
{
GSTCURL_SEEKABLE_UNKNOWN,
GSTCURL_SEEKABLE_TRUE,
GSTCURL_SEEKABLE_FALSE
} GstCGstCurlHttpSrcSeekable;
struct _GstCurlHttpSrcMultiTaskContext
{
GstTask *task;
GRecMutex task_rec_mutex;
GMutex mutex;
guint refcount;
GCond signal;
GstCurlHttpSrcQueueElement *queue;
enum
{
GSTCURL_MULTI_LOOP_STATE_RUNNING,
GSTCURL_MULTI_LOOP_STATE_STOP
} state;
/* < private > */
CURLM *multi_handle;
};
struct _GstCurlHttpSrcClass
{
GstPushSrcClass parent_class;
GstCurlHttpSrcMultiTaskContext multi_task_context;
};
/*
* Our instance class.
*/
struct _GstCurlHttpSrc
{
GstPushSrc element;
/* < private > */
GMutex uri_mutex; /* Make the URIHandler get/set thread safe */
/*
* Things to tell libcURL about to build up the request message.
*/
/* Type Name Curl Option */
gchar *uri; /* CURLOPT_URL */
gchar *redirect_uri; /* CURLINFO_REDIRECT_URL */
gchar *username; /* CURLOPT_USERNAME */
gchar *password; /* CURLOPT_PASSWORD */
gchar *proxy_uri; /* CURLOPT_PROXY */
gchar *no_proxy_list; /* CURLOPT_NOPROXY */
gchar *proxy_user; /* CURLOPT_PROXYUSERNAME */
gchar *proxy_pass; /* CURLOPT_PROXYPASSWORD */
/* Header options */
gchar **cookies; /* CURLOPT_COOKIELIST */
gint number_cookies;
gchar *user_agent; /* CURLOPT_USERAGENT */
GstStructure *request_headers; /* CURLOPT_HTTPHEADER */
struct curl_slist *slist;
gboolean accept_compressed_encodings; /* CURLOPT_ACCEPT_ENCODING */
gint64 request_position; /* Seek to this position. */
gint64 stop_position; /* Stop at this position. */
/* Connection options */
glong allow_3xx_redirect; /* CURLOPT_FOLLOWLOCATION */
glong max_3xx_redirects; /* CURLOPT_MAXREDIRS */
gboolean keep_alive; /* CURLOPT_TCP_KEEPALIVE */
gint timeout_secs; /* CURLOPT_TIMEOUT */
gboolean strict_ssl; /* CURLOPT_SSL_VERIFYPEER */
gchar* custom_ca_file; /* CURLOPT_CAINFO */
gint total_retries;
gint retries_remaining;
/*TODO As the following are all multi options, move these to curl task */
guint max_connection_time; /* */
guint max_conns_per_server; /* CURLMOPT_MAX_HOST_CONNECTIONS */
guint max_conns_per_proxy; /* ?!? */
guint max_conns_global; /* CURLMOPT_MAXCONNECTS */
/* END multi options */
/* Some stuff for HTTP/2 */
GstCurlHttpVersion preferred_http_version;
enum
{
GSTCURL_NONE,
GSTCURL_OK,
GSTCURL_DONE,
GSTCURL_UNLOCK,
GSTCURL_REMOVED,
GSTCURL_BAD_QUEUE_REQUEST,
GSTCURL_TOTAL_ERROR,
GSTCURL_PIPELINE_NULL,
GSTCURL_MAX
} state, pending_state;
CURL *curl_handle;
GMutex buffer_mutex;
GCond buffer_cond;
gchar *buffer;
guint buffer_len;
gboolean transfer_begun;
gboolean data_received;
enum {
GSTCURL_NOT_CONNECTED,
GSTCURL_CONNECTED,
GSTCURL_WANT_REMOVAL
} connection_status;
/*
* Response Headers
*/
GstStructure *http_headers;
gchar *content_type;
guint status_code;
gchar *reason_phrase;
gboolean hdrs_updated;
guint64 content_size;
GstCGstCurlHttpSrcSeekable seekable;
CURLcode curl_result;
char curl_errbuf[CURL_ERROR_SIZE];
GstCaps *caps;
};
GType gst_curl_http_src_get_type (void);
G_END_DECLS
#endif /* GSTCURLHTTPSRC_H_ */