/**
* Create file stream and set mime type for channel
* @param info file info used to determine mime type
* @return NS_OK when file stream created successfuly, error code otherwise
*/
nsresult
nsGIOInputStream::DoOpenFile(GFileInfo *info)
{
GError *error = nullptr;
mStream = g_file_read(mHandle, nullptr, &error);
if (!mStream) {
nsresult rv = MapGIOResult(error);
g_warning("Cannot read from file: %s", error->message);
g_error_free(error);
return rv;
}
const char * content_type = g_file_info_get_content_type(info);
if (content_type) {
char *mime_type = g_content_type_get_mime_type(content_type);
if (mime_type) {
if (strcmp(mime_type, APPLICATION_OCTET_STREAM) != 0) {
SetContentTypeOfChannel(mime_type);
}
g_free(mime_type);
}
} else {
g_warning("Missing content type.");
}
mBytesRemaining = g_file_info_get_size(info);
// Update the content length attribute on the channel. We do this
// synchronously without proxying. This hack is not as bad as it looks!
mChannel->SetContentLength(mBytesRemaining);
return NS_OK;
}
/**
* Create list of infos about objects in opened directory
* Return: NS_OK when list obtained, otherwise error code according
* to failed operation.
*/
nsresult
nsGIOInputStream::DoOpenDirectory()
{
GError *error = nullptr;
GFileEnumerator *f_enum = g_file_enumerate_children(mHandle,
"standard::*,time::*",
G_FILE_QUERY_INFO_NONE,
nullptr,
&error);
if (!f_enum) {
nsresult rv = MapGIOResult(error);
g_warning("Cannot read from directory: %s", error->message);
g_error_free(error);
return rv;
}
// fill list of file infos
GFileInfo *info = g_file_enumerator_next_file(f_enum, nullptr, &error);
while (info) {
mDirList = g_list_append(mDirList, info);
info = g_file_enumerator_next_file(f_enum, nullptr, &error);
}
g_object_unref(f_enum);
if (error) {
g_warning("Error reading directory content: %s", error->message);
nsresult rv = MapGIOResult(error);
g_error_free(error);
return rv;
}
mDirOpen = true;
// Sort list of file infos by using FileInfoComparator function
mDirList = g_list_sort(mDirList, FileInfoComparator);
mDirListPtr = mDirList;
// Write base URL (make sure it ends with a '/')
mDirBuf.AppendLiteral("300: ");
mDirBuf.Append(mSpec);
if (mSpec.get()[mSpec.Length() - 1] != '/')
mDirBuf.Append('/');
mDirBuf.Append('\n');
// Write column names
mDirBuf.AppendLiteral("200: filename content-length last-modified file-type\n");
// Write charset (assume UTF-8)
// XXX is this correct?
mDirBuf.AppendLiteral("301: UTF-8\n");
SetContentTypeOfChannel(APPLICATION_HTTP_INDEX_FORMAT);
return NS_OK;
}
GnomeVFSResult
nsGnomeVFSInputStream::DoOpen()
{
GnomeVFSResult rv;
NS_ASSERTION(mHandle == nsnull, "already open");
// Push a callback handler on the stack for this thread, so we can intercept
// authentication requests from GnomeVFS. We'll use the channel to get a
// nsIAuthPrompt instance.
gnome_vfs_module_callback_push(GNOME_VFS_MODULE_CALLBACK_AUTHENTICATION,
AuthCallback, mChannel, NULL);
// Query the mime type first (this could return NULL).
//
// XXX We need to do this up-front in order to determine how to open the URI.
// Unfortunately, the error code GNOME_VFS_ERROR_IS_DIRECTORY is not
// always returned by gnome_vfs_open when we pass it a URI to a directory!
// Otherwise, we could have used that as a way to failover to opening the
// URI as a directory. Also, it would have been ideal if
// gnome_vfs_get_file_info_from_handle were actually implemented by the
// smb:// module, since that would have allowed us to potentially save a
// round trip to the server to discover the mime type of the document in
// the case where gnome_vfs_open would have been used. (Oh well! /me
// throws hands up in the air and moves on...)
GnomeVFSFileInfo info = {0};
rv = gnome_vfs_get_file_info(mSpec.get(), &info, GnomeVFSFileInfoOptions(
GNOME_VFS_FILE_INFO_DEFAULT |
GNOME_VFS_FILE_INFO_FOLLOW_LINKS));
if (rv == GNOME_VFS_OK)
{
if (info.type == GNOME_VFS_FILE_TYPE_DIRECTORY)
{
rv = gnome_vfs_directory_list_load(&mDirList, mSpec.get(),
GNOME_VFS_FILE_INFO_DEFAULT);
LOG(("gnomevfs: gnome_vfs_directory_list_load returned %d (%s) [spec=\"%s\"]\n",
rv, gnome_vfs_result_to_string(rv), mSpec.get()));
}
else
{
rv = gnome_vfs_open(&mHandle, mSpec.get(), GNOME_VFS_OPEN_READ);
LOG(("gnomevfs: gnome_vfs_open returned %d (%s) [spec=\"%s\"]\n",
rv, gnome_vfs_result_to_string(rv), mSpec.get()));
}
}
gnome_vfs_module_callback_pop(GNOME_VFS_MODULE_CALLBACK_AUTHENTICATION);
if (rv == GNOME_VFS_OK)
{
if (mHandle)
{
// Here we set the content type of the channel to the value of the mime
// type determined by GnomeVFS. However, if GnomeVFS is telling us that
// the document is binary, we'll ignore that and keep the channel's
// content type unspecified. That will enable our content type sniffing
// algorithms. This should provide more consistent mime type handling.
if (info.mime_type && (strcmp(info.mime_type, APPLICATION_OCTET_STREAM) != 0))
SetContentTypeOfChannel(info.mime_type);
mBytesRemaining = info.size;
// Update the content length attribute on the channel. We do this
// synchronously without proxying. This hack is not as bad as it looks!
if (mBytesRemaining != PRUint64(-1))
mChannel->SetContentLength(mBytesRemaining);
}
else
{
mDirOpen = PR_TRUE;
// Sort mDirList
mDirList = g_list_sort(mDirList, FileInfoComparator);
mDirListPtr = mDirList;
// Write base URL (make sure it ends with a '/')
mDirBuf.Append("300: ");
mDirBuf.Append(mSpec);
if (mSpec.get()[mSpec.Length() - 1] != '/')
mDirBuf.Append('/');
mDirBuf.Append('\n');
// Write column names
mDirBuf.Append("200: filename content-length last-modified file-type\n");
// Write charset (assume UTF-8)
// XXX is this correct?
mDirBuf.Append("301: UTF-8\n");
SetContentTypeOfChannel(APPLICATION_HTTP_INDEX_FORMAT);
}
}
gnome_vfs_file_info_clear(&info);
return rv;
}