gio/win32/gwinhttpfileoutputstream.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 Red Hat, Inc.
   4  * Copyright (C) 2008 Novell, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General
  17  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  * Author: Alexander Larsson <alexl@redhat.com>
  20  * Author: Tor Lillqvist <tml@novell.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include <glib.h>
  26
  27 #include "gio/gcancellable.h"
  28 #include "gio/gioerror.h"
  29 #include "gwinhttpfileoutputstream.h"
  30 #include "glibintl.h"
  31
  32 struct _GWinHttpFileOutputStream
  33 {
  34   GFileOutputStream parent_instance;
  35
  36   GWinHttpFile *file;
  37   HINTERNET connection;
  38   goffset offset;
  39 };
  40
  41 struct _GWinHttpFileOutputStreamClass
  42 {
  43   GFileOutputStreamClass parent_class;
  44 };
  45
  46 #define g_winhttp_file_output_stream_get_type _g_winhttp_file_output_stream_get_type
  47 G_DEFINE_TYPE (GWinHttpFileOutputStream, g_winhttp_file_output_stream, G_TYPE_FILE_OUTPUT_STREAM);
  48
  49 static gssize     g_winhttp_file_output_stream_write      (GOutputStream     *stream,
  50                                                            const void        *buffer,
  51                                                            gsize              count,
  52                                                            GCancellable      *cancellable,
  53                                                            GError           **error);
  54
  55 static void
  56 g_winhttp_file_output_stream_finalize (GObject *object)
  57 {
  58   GWinHttpFileOutputStream *winhttp_stream;
  59
  60   winhttp_stream = G_WINHTTP_FILE_OUTPUT_STREAM (object);
  61
  62   if (winhttp_stream->connection != NULL)
  63     G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (winhttp_stream->connection);
  64
  65   G_OBJECT_CLASS (g_winhttp_file_output_stream_parent_class)->finalize (object);
  66 }
  67
  68 static void
  69 g_winhttp_file_output_stream_class_init (GWinHttpFileOutputStreamClass *klass)
  70 {
  71   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  72   GOutputStreamClass *stream_class = G_OUTPUT_STREAM_CLASS (klass);
  73
  74   gobject_class->finalize = g_winhttp_file_output_stream_finalize;
  75
  76   stream_class->write_fn = g_winhttp_file_output_stream_write;
  77 }
  78
  79 static void
  80 g_winhttp_file_output_stream_init (GWinHttpFileOutputStream *info)
  81 {
  82 }
  83
  84 /**
  85  * g_winhttp_file_output_stream_new:
  86  * @file: the GWinHttpFile being read
  87  * @connection: handle to the HTTP connection, as from WinHttpConnect()
  88  * @request: handle to the HTTP request, as from WinHttpOpenRequest
  89  *
  90  * Returns: #GFileOutputStream for the given request
  91  */
  92 GFileOutputStream *
  93 _g_winhttp_file_output_stream_new (GWinHttpFile *file,
  94                                    HINTERNET     connection)
  95 {
  96   GWinHttpFileOutputStream *stream;
  97
  98   stream = g_object_new (G_TYPE_WINHTTP_FILE_OUTPUT_STREAM, NULL);
  99
 100   stream->file = file;
 101   stream->connection = connection;
 102   stream->offset = 0;
 103
 104   return G_FILE_OUTPUT_STREAM (stream);
 105 }
 106
 107 static gssize
 108 g_winhttp_file_output_stream_write (GOutputStream  *stream,
 109                                     const void     *buffer,
 110                                     gsize           count,
 111                                     GCancellable   *cancellable,
 112                                     GError        **error)
 113 {
 114   GWinHttpFileOutputStream *winhttp_stream = G_WINHTTP_FILE_OUTPUT_STREAM (stream);
 115   HINTERNET request;
 116   char *headers;
 117   wchar_t *wheaders;
 118   DWORD bytes_written;
 119
 120   request = G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpOpenRequest
 121     (winhttp_stream->connection,
 122      L"PUT",
 123      winhttp_stream->file->url.lpszUrlPath,
 124      NULL,
 125      WINHTTP_NO_REFERER,
 126      NULL,
 127      winhttp_stream->file->url.nScheme == INTERNET_SCHEME_HTTPS ? WINHTTP_FLAG_SECURE : 0);
 128
 129   if (request == NULL)
 130     {
 131       _g_winhttp_set_error (error, GetLastError (), "PUT request");
 132
 133       return -1;
 134     }
 135
 136   headers = g_strdup_printf ("Content-Range: bytes %" G_GINT64_FORMAT "-%" G_GINT64_FORMAT "/*\r\n",
 137                              winhttp_stream->offset, winhttp_stream->offset + count);
 138   wheaders = g_utf8_to_utf16 (headers, -1, NULL, NULL, NULL);
 139   g_free (headers);
 140
 141   if (!G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpSendRequest
 142       (request,
 143        wheaders, -1,
 144        NULL, 0,
 145        count,
 146        0))
 147     {
 148       _g_winhttp_set_error (error, GetLastError (), "PUT request");
 149
 150       G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (request);
 151       g_free (wheaders);
 152
 153       return -1;
 154     }
 155
 156   g_free (wheaders);
 157
 158   if (!G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpWriteData
 159       (request, buffer, count, &bytes_written))
 160     {
 161       _g_winhttp_set_error (error, GetLastError (), "PUT request");
 162
 163       G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (request);
 164
 165       return -1;
 166     }
 167
 168   winhttp_stream->offset += bytes_written;
 169
 170   if (!_g_winhttp_response (winhttp_stream->file->vfs,
 171                             request,
 172                             error,
 173                             "PUT request"))
 174     {
 175       G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (request);
 176
 177       return -1;
 178     }
 179
 180   G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (request);
 181
 182   return bytes_written;
 183 }