swfdec/swfdec_file_loader.c

   1 /* Swfdec
   2  * Copyright (C) 2006-2007 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include <string.h>
  25 #include "swfdec_loader_internal.h"
  26 #include "swfdec_buffer.h"
  27 #include "swfdec_debug.h"
  28 #include "swfdec_player_internal.h"
  29
  30 /**
  31  * SwfdecFileLoader:
  32  *
  33  * This is a #SwfdecLoader that can load content from files. This symbol is
  34  * exported so you can subclass your own loaders from it and have automatic
  35  * file access.
  36  */
  37
  38 G_DEFINE_TYPE (SwfdecFileLoader, swfdec_file_loader, SWFDEC_TYPE_LOADER)
  39
  40 static void
  41 swfdec_file_loader_load (SwfdecLoader *loader, SwfdecPlayer *player,
  42     const char *url_string, SwfdecBuffer *buffer, guint header_count,
  43     const char **header_names, const char **header_values)
  44 {
  45   SwfdecStream *stream = SWFDEC_STREAM (loader);
  46   GError *error = NULL;
  47   char *real, *unescape, *concat;
  48   SwfdecURL *url;
  49
  50   if (swfdec_url_path_is_relative (url_string)) {
  51     url = swfdec_url_new_relative (swfdec_player_get_base_url (player), url_string);
  52   } else {
  53     url = swfdec_url_new (url_string);
  54   }
  55   if (url == NULL) {
  56     swfdec_stream_error (stream, "%s is an invalid URL", url_string);
  57     return;
  58   }
  59   swfdec_loader_set_url (loader, swfdec_url_get_url (url));
  60   if (!g_str_equal (swfdec_url_get_protocol (url), "file")) {
  61     swfdec_stream_error (stream, "Don't know how to handle this protocol");
  62     swfdec_url_free (url);
  63     return;
  64   }
  65   if (swfdec_url_get_host (url)) {
  66     swfdec_stream_error (stream, "filenames cannot have hostnames");
  67     swfdec_url_free (url);
  68     return;
  69   }
  70
  71   // FIXME: Should probably use swfdec_as_string_unescape here
  72   if (strstr (swfdec_url_get_path (url), "%00") != 0) {
  73     char *path = g_strdup (swfdec_url_get_path (url));
  74     *strstr (path, "%00") = 0;
  75     unescape = g_uri_unescape_string (path, NULL);
  76     g_free (path);
  77   } else {
  78     unescape = g_uri_unescape_string (swfdec_url_get_path (url), NULL);
  79   }
  80   if (unescape == NULL) {
  81     swfdec_stream_error (stream, "unescaping file path failed");
  82     swfdec_url_free (url);
  83     return;
  84   }
  85   /* Swfdec ignores query strings, just like Flash 9.0.124.0 and onwards.
  86    * Might be a useful quirk to have though */
  87 #ifdef QUIRKS_MODE
  88   if (swfdec_url_get_query (url)) {
  89     concat = g_strconcat ("/", unescape, "?", swfdec_url_get_query (url), NULL);
  90   } else {
  91     concat = g_strconcat ("/", unescape, NULL);
  92   }
  93 #else
  94   concat = g_strconcat ("/", unescape, NULL);
  95 #endif
  96   g_free (unescape);
  97   real = g_filename_from_utf8 (concat, -1, NULL, NULL, &error);
  98   g_free (concat);
  99   if (real == NULL) {
 100     swfdec_stream_error (stream, "%s", error->message);
 101     g_error_free (error);
 102     swfdec_url_free (url);
 103     return;
 104   }
 105   buffer = swfdec_buffer_new_from_file (real, &error);
 106   g_free (real);
 107   if (buffer == NULL) {
 108     swfdec_stream_error (stream, "%s", error->message);
 109     g_error_free (error);
 110   } else {
 111     swfdec_loader_set_size (loader, buffer->length);
 112     swfdec_stream_open (stream);
 113     swfdec_stream_push (stream, buffer);
 114     swfdec_stream_close (stream);
 115   }
 116   swfdec_url_free (url);
 117 }
 118
 119 static void
 120 swfdec_file_loader_class_init (SwfdecFileLoaderClass *klass)
 121 {
 122   SwfdecLoaderClass *loader_class = SWFDEC_LOADER_CLASS (klass);
 123
 124   loader_class->load = swfdec_file_loader_load;
 125 }
 126
 127 static void
 128 swfdec_file_loader_init (SwfdecFileLoader *loader)
 129 {
 130 }
 131