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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* soup-message-io-data.c: HTTP message I/O data
*
* Copyright (C) 2000-2003, Ximian, Inc.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib/gi18n-lib.h>
#include "soup-message-io-data.h"
#include "soup-message-private.h"
#include "soup-server-message-private.h"
#include "soup.h"
#define RESPONSE_BLOCK_SIZE 8192
#define HEADER_SIZE_LIMIT (64 * 1024)
void
soup_message_io_data_cleanup (SoupMessageIOData *io)
{
if (io->io_source) {
g_source_destroy (io->io_source);
g_source_unref (io->io_source);
io->io_source = NULL;
}
if (io->iostream)
g_object_unref (io->iostream);
if (io->body_istream)
g_object_unref (io->body_istream);
if (io->body_ostream)
g_object_unref (io->body_ostream);
if (io->async_context)
g_main_context_unref (io->async_context);
g_byte_array_free (io->read_header_buf, TRUE);
g_string_free (io->write_buf, TRUE);
if (io->async_wait) {
g_cancellable_cancel (io->async_wait);
g_clear_object (&io->async_wait);
}
g_clear_error (&io->async_error);
}
gboolean
soup_message_io_data_read_headers (SoupMessageIOData *io,
gboolean blocking,
GCancellable *cancellable,
GError **error)
{
gssize nread, old_len;
gboolean got_lf;
while (1) {
old_len = io->read_header_buf->len;
g_byte_array_set_size (io->read_header_buf, old_len + RESPONSE_BLOCK_SIZE);
nread = soup_filter_input_stream_read_line (io->istream,
io->read_header_buf->data + old_len,
RESPONSE_BLOCK_SIZE,
blocking,
&got_lf,
cancellable, error);
io->read_header_buf->len = old_len + MAX (nread, 0);
if (nread == 0) {
if (io->read_header_buf->len > 0)
break;
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_PARTIAL_INPUT,
_("Connection terminated unexpectedly"));
}
if (nread <= 0)
return FALSE;
if (got_lf) {
if (nread == 1 && old_len >= 2 &&
!strncmp ((char *)io->read_header_buf->data +
io->read_header_buf->len - 2,
"\n\n", 2)) {
io->read_header_buf->len--;
break;
} else if (nread == 2 && old_len >= 3 &&
!strncmp ((char *)io->read_header_buf->data +
io->read_header_buf->len - 3,
"\n\r\n", 3)) {
io->read_header_buf->len -= 2;
break;
}
}
if (io->read_header_buf->len > HEADER_SIZE_LIMIT) {
g_set_error_literal (error, G_IO_ERROR,
G_IO_ERROR_PARTIAL_INPUT,
_("Header too big"));
return FALSE;
}
}
io->read_header_buf->data[io->read_header_buf->len] = '\0';
return TRUE;
}
static gboolean
message_io_is_paused (GObject *msg)
{
if (SOUP_IS_MESSAGE (msg))
return soup_message_is_io_paused (SOUP_MESSAGE (msg));
if (SOUP_IS_SERVER_MESSAGE (msg))
return soup_server_message_is_io_paused (SOUP_SERVER_MESSAGE (msg));
return FALSE;
}
typedef struct {
GSource source;
GObject *msg;
gboolean paused;
} SoupMessageIOSource;
static gboolean
message_io_source_check (GSource *source)
{
SoupMessageIOSource *message_source = (SoupMessageIOSource *)source;
if (message_source->paused) {
if (message_io_is_paused (message_source->msg))
return FALSE;
return TRUE;
} else
return FALSE;
}
static gboolean
message_io_source_prepare (GSource *source,
gint *timeout)
{
*timeout = -1;
return message_io_source_check (source);
}
static gboolean
message_io_source_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
SoupMessageIOSourceFunc func = (SoupMessageIOSourceFunc)callback;
SoupMessageIOSource *message_source = (SoupMessageIOSource *)source;
return (*func) (message_source->msg, user_data);
}
static void
message_io_source_finalize (GSource *source)
{
SoupMessageIOSource *message_source = (SoupMessageIOSource *)source;
g_object_unref (message_source->msg);
}
static gboolean
message_io_source_closure_callback (GObject *msg,
gpointer data)
{
GClosure *closure = data;
GValue param = G_VALUE_INIT;
GValue result_value = G_VALUE_INIT;
gboolean result;
g_value_init (&result_value, G_TYPE_BOOLEAN);
g_value_init (¶m, G_TYPE_OBJECT);
g_value_set_object (¶m, msg);
g_closure_invoke (closure, &result_value, 1, ¶m, NULL);
result = g_value_get_boolean (&result_value);
g_value_unset (&result_value);
g_value_unset (¶m);
return result;
}
static GSourceFuncs message_io_source_funcs =
{
message_io_source_prepare,
message_io_source_check,
message_io_source_dispatch,
message_io_source_finalize,
(GSourceFunc)message_io_source_closure_callback,
(GSourceDummyMarshal)g_cclosure_marshal_generic,
};
GSource *
soup_message_io_data_get_source (SoupMessageIOData *io,
GObject *msg,
GCancellable *cancellable,
SoupMessageIOSourceFunc callback,
gpointer user_data)
{
GSource *base_source, *source;
SoupMessageIOSource *message_source;
if (!io) {
base_source = g_timeout_source_new (0);
} else if (io->paused) {
base_source = cancellable ? g_cancellable_source_new (cancellable) : NULL;
} else if (io->async_wait) {
base_source = g_cancellable_source_new (io->async_wait);
} else if (SOUP_MESSAGE_IO_STATE_POLLABLE (io->read_state)) {
GPollableInputStream *istream;
if (io->body_istream)
istream = G_POLLABLE_INPUT_STREAM (io->body_istream);
else
istream = G_POLLABLE_INPUT_STREAM (io->istream);
base_source = g_pollable_input_stream_create_source (istream, cancellable);
} else if (SOUP_MESSAGE_IO_STATE_POLLABLE (io->write_state)) {
GPollableOutputStream *ostream;
if (io->body_ostream)
ostream = G_POLLABLE_OUTPUT_STREAM (io->body_ostream);
else
ostream = G_POLLABLE_OUTPUT_STREAM (io->ostream);
base_source = g_pollable_output_stream_create_source (ostream, cancellable);
} else
base_source = g_timeout_source_new (0);
source = g_source_new (&message_io_source_funcs, sizeof (SoupMessageIOSource));
g_source_set_name (source, "SoupMessageIOSource");
message_source = (SoupMessageIOSource *)source;
message_source->msg = g_object_ref (msg);
message_source->paused = io && io->paused;
if (base_source) {
g_source_set_dummy_callback (base_source);
g_source_add_child_source (source, base_source);
g_source_unref (base_source);
}
g_source_set_callback (source, (GSourceFunc) callback, user_data, NULL);
return source;
}
void
soup_message_io_data_pause (SoupMessageIOData *io)
{
if (io->io_source) {
g_source_destroy (io->io_source);
g_source_unref (io->io_source);
io->io_source = NULL;
}
io->paused = TRUE;
}
void
soup_message_io_data_unpause (SoupMessageIOData *io)
{
io->paused = FALSE;
}
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