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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* soup-server-cgi.c: Asynchronous CGI server
*
* Copyright (C) 2001-2003, Ximian, Inc.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "soup-server-cgi.h"
#include "soup-server-message.h"
#include "soup-private.h"
extern char **environ;
struct _SoupServerCGIPrivate {
GIOChannel *read, *write;
SoupMessage *msg;
int nread;
};
#define PARENT_TYPE SOUP_TYPE_SERVER
static SoupServerClass *parent_class;
static void run_async (SoupServer *server);
static void
init (GObject *object)
{
SoupServerCGI *cgi = SOUP_SERVER_CGI (object);
cgi->priv = g_new0 (SoupServerCGIPrivate, 1);
}
static void
finalize (GObject *object)
{
SoupServerCGI *cgi = SOUP_SERVER_CGI (object);
if (cgi->priv->read)
g_io_channel_unref (cgi->priv->read);
if (cgi->priv->write)
g_io_channel_unref (cgi->priv->write);
g_free (cgi->priv);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
class_init (GObjectClass *object_class)
{
SoupServerClass *server_class = SOUP_SERVER_CLASS (object_class);
parent_class = g_type_class_ref (PARENT_TYPE);
/* virtual method override */
server_class->run_async = run_async;
object_class->finalize = finalize;
}
SOUP_MAKE_TYPE (soup_server_cgi, SoupServerCGI, class_init, init, PARENT_TYPE)
SoupServer *
soup_server_cgi_new (void)
{
SoupServerCGI *cgi;
GIOChannel *read, *write;
read = g_io_channel_unix_new (STDIN_FILENO);
if (!read)
return NULL;
write = g_io_channel_unix_new (STDOUT_FILENO);
if (!write) {
g_io_channel_unref (read);
return NULL;
}
cgi = g_object_new (SOUP_TYPE_SERVER_CGI, NULL);
cgi->priv->read = read;
cgi->priv->write = write;
return (SoupServer *)cgi;
}
static void
sent_response (SoupMessage *msg, gpointer server)
{
soup_server_quit (server);
}
static void
read_done (SoupServerCGI *cgi)
{
soup_server_handle_request (SOUP_SERVER (cgi), cgi->priv->msg,
getenv ("PATH_INFO"));
soup_server_message_respond (cgi->priv->msg, cgi->priv->write,
sent_response, cgi);
}
static gboolean
read_watch (GIOChannel *chan,
GIOCondition condition,
gpointer user_data)
{
SoupServerCGI *cgi = user_data;
SoupMessage *msg = cgi->priv->msg;
if ((condition & G_IO_IN) && cgi->priv->nread < msg->request.length) {
gsize nread;
GIOError error;
error = g_io_channel_read (
chan, msg->request.body + cgi->priv->nread,
msg->request.length - cgi->priv->nread, &nread);
if (error == G_IO_ERROR_AGAIN)
return TRUE;
else if (error == G_IO_ERROR_NONE) {
cgi->priv->nread += nread;
if (cgi->priv->nread < msg->request.length)
return TRUE;
}
}
if (cgi->priv->nread != msg->request.length) {
soup_message_set_error (msg, SOUP_ERROR_BAD_REQUEST);
soup_server_message_respond (msg, cgi->priv->write,
sent_response, cgi);
g_object_unref (msg);
return FALSE;
}
read_done (cgi);
return FALSE;
}
static void
run_async (SoupServer *serv)
{
SoupServerCGI *cgi = SOUP_SERVER_CGI (serv);
SoupMessage *msg;
SoupUri *uri;
const char *length, *proto, *host, *https;
int i;
char *url;
/* FIXME: Use REMOTE_HOST */
msg = cgi->priv->msg =
soup_server_message_new (NULL, SOUP_SERVER_MESSAGE_CGI);
msg->method = g_strdup (getenv ("REQUEST_METHOD"));
proto = getenv ("SERVER_PROTOCOL");
if (proto) {
if (!g_strcasecmp (proto, "HTTP/1.1"))
msg->priv->http_version = SOUP_HTTP_1_1;
else
msg->priv->http_version = SOUP_HTTP_1_0;
} else
msg->priv->http_version = SOUP_HTTP_1_0;
/* Set context */
host = getenv ("HTTP_HOST");
if (!host)
host = getenv ("SERVER_ADDR");
https = getenv ("HTTPS");
url = g_strconcat (https ? "https://" : "http://",
host,
":",
getenv ("SERVER_PORT"),
getenv ("REQUEST_URI"),
NULL);
uri = soup_uri_new (url);
g_free (url);
if (!uri) {
soup_server_quit (serv);
g_object_unref (msg);
return;
}
soup_message_set_uri (msg, uri);
soup_uri_free (uri);
/* Load request headers from environment. Header environment
* variables are of the form "HTTP_<NAME>=<VALUE>"
*/
for (i = 0; environ[i]; i++) {
char *env = environ [i];
if (!strncmp (env, "HTTP_", 5)) {
char *dup, *p;
dup = p = g_strdup (env + 5);
/* Replace '_' with '-' in header names */
while (*p && *p != '=') {
if (*p == '_')
*p = '-';
p++;
}
if (*dup && *p) {
/* Skip '=' between key and value */
*p++ = '\0';
soup_message_add_header (msg->request_headers,
dup, p);
}
g_free (dup);
}
}
length = getenv ("CONTENT_LENGTH");
msg->request.owner = SOUP_BUFFER_SYSTEM_OWNED;
msg->request.length = length ? atoi (length) : 0;
msg->request.body = g_malloc (msg->request.length);
cgi->priv->nread = 0;
if (msg->request.length > 0) {
g_io_add_watch (cgi->priv->read,
G_IO_IN|G_IO_ERR|G_IO_HUP|G_IO_NVAL,
read_watch, cgi);
} else
read_done (cgi);
}
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