src/api/supports.c

   1 /* libquvi
   2  * Copyright (C) 2012,2013  Toni Gundogdu <legatvs@gmail.com>
   3  *
   4  * This file is part of libquvi <http://quvi.sourceforge.net/>.
   5  *
   6  * This library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU Affero General Public
   8  * License as published by the Free Software Foundation, either
   9  * version 3 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General
  17  * Public License along with this library.  If not, see
  18  * <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /** @file supports.c */
  22
  23 #include "config.h"
  24
  25 #include <glib.h>
  26
  27 #include "quvi.h"
  28 /* -- */
  29 #include "_quvi_s.h"
  30 #include "_quvi_media_s.h"
  31 #include "_quvi_playlist_s.h"
  32 #include "_quvi_subtitle_s.h"
  33 /* -- */
  34 #include "misc/match_playlist_script.h"
  35 #include "misc/match_subtitle_script.h"
  36 #include "misc/match_media_script.h"
  37
  38 static QuviBoolean _supports_playlist(_quvi_t q, const gchar *url,
  39                                       const QuviSupportsMode mode)
  40 {
  41   _quvi_playlist_t qp = NULL;
  42
  43   q->status.rc = m_match_playlist_script(q, &qp, url,
  44                                          (mode == QUVI_SUPPORTS_MODE_OFFLINE)
  45                                          ? QM_MATCH_PS_SUPPORTED_OFFLINE
  46                                          : QM_MATCH_PS_SUPPORTED_ONLINE);
  47   if (qp != NULL)
  48     {
  49       quvi_playlist_free((quvi_playlist_t) qp);
  50       qp = NULL;
  51     }
  52   return (quvi_ok(q));
  53 }
  54
  55 static QuviBoolean _supports_subtitle(_quvi_t q, const gchar *url,
  56                                       const QuviSupportsMode mode)
  57 {
  58   _quvi_subtitle_t qsub = NULL;
  59
  60   q->status.rc = m_match_subtitle_script(q, &qsub, url,
  61                                          (mode == QUVI_SUPPORTS_MODE_OFFLINE)
  62                                          ? QM_MATCH_SUBS_SUPPORTED_OFFLINE
  63                                          : QM_MATCH_SUBS_SUPPORTED_ONLINE);
  64
  65   if (qsub != NULL)
  66     {
  67       quvi_subtitle_free((quvi_subtitle_t) qsub);
  68       qsub = NULL;
  69     }
  70   return (quvi_ok(q));
  71 }
  72
  73 static QuviBoolean _supports_media(_quvi_t q, const gchar *url,
  74                                    const QuviSupportsMode mode)
  75 {
  76   _quvi_media_t qm = NULL;
  77
  78   q->status.rc = m_match_media_script(q, &qm, url,
  79                                       (mode == QUVI_SUPPORTS_MODE_OFFLINE)
  80                                       ? QM_MATCH_MS_SUPPORTED_OFFLINE
  81                                       : QM_MATCH_MS_SUPPORTED_ONLINE);
  82   if (qm != NULL)
  83     {
  84       quvi_media_free((quvi_media_t) qm);
  85       qm = NULL;
  86     }
  87   return (quvi_ok(q));
  88 }
  89
  90 /** @brief Check whether the URL is supported
  91
  92 Check if any of the scripts accepts the URL. Both offline and online
  93 checking is supported.
  94
  95 @note
  96  - Offline check will fail with most @ref sh_url
  97  - Online check will resolve @ref sh_url
  98
  99 Type may be a combination.
 100
 101 @code
 102 quvi_supports(q, URL, QUVI_SUPPORTS_OFFLINE,
 103               QUVI_SUPPORTS_TYPE_PLAYLIST | QUVI_SUPPORTS_TYPE_MEDIA);
 104 @endcode
 105
 106 @ingroup convenience
 107 */
 108 QuviBoolean quvi_supports(quvi_t handle, const char *url,
 109                           QuviSupportsMode mode, QuviSupportsType type)
 110 {
 111   QuviBoolean found;
 112   _quvi_t q;
 113
 114   /* If G_DISABLE_CHECKS is defined then the check is not performed. */
 115   g_return_val_if_fail(handle != NULL, QUVI_FALSE);
 116   g_return_val_if_fail(url != NULL, QUVI_FALSE);
 117
 118   q = (_quvi_t) handle;
 119   q->status.rc = QUVI_OK;
 120   found = QUVI_FALSE;
 121
 122   if (type & QUVI_SUPPORTS_TYPE_PLAYLIST)
 123     found = _supports_playlist(q, url, mode);
 124
 125   if (q->status.rc == QUVI_OK || q->status.rc == QUVI_ERROR_NO_SUPPORT)
 126     {
 127       if (type & QUVI_SUPPORTS_TYPE_SUBTITLE)
 128         found = _supports_subtitle(q, url, mode);
 129     }
 130
 131   if (q->status.rc == QUVI_OK || q->status.rc == QUVI_ERROR_NO_SUPPORT)
 132     {
 133       if (type & QUVI_SUPPORTS_TYPE_MEDIA)
 134         found = _supports_media(q, url, mode);
 135     }
 136   return (found);
 137 }
 138
 139 /* vim: set ts=2 sw=2 tw=72 expandtab: */