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Added. New stream for HTTP requests (currently supported are GET and

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2002-02-04  Jeffrey Stedfast  <fejj@ximian.com>

	* camel-http-stream.[c,h]: Added. New stream for HTTP requests
	(currently supported are GET and HEAD).

	* camel-tcp-stream-ssl.c (stream_connect): Call set_errno
	appropriately.

svn path=/trunk/; revision=15567
This commit is contained in:
Jeffrey Stedfast
2002-02-04 19:59:33 +00:00
committed by Jeffrey Stedfast
parent ec14bae134
commit 331b663182
3 changed files with 530 additions and 0 deletions
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3
camel/ChangeLog
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@ -1,5 +1,8 @@
2002-02-04 Jeffrey Stedfast <fejj@ximian.com>
* camel-http-stream.[c,h]: Added. New stream for HTTP requests
(currently supported are GET and HEAD).
* camel-tcp-stream-ssl.c (stream_connect): Call set_errno
appropriately.

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camel/camel-http-stream.c Normal file
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2002 Ximain, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "camel-http-stream.h"
#include "camel-stream-buffer.h"
#include "camel-tcp-stream-raw.h"
#ifdef HAVE_NSS
#include "camel-tcp-stream-ssl.h"
#endif
#ifdef HAVE_OPENSSL
#include "camel-tcp-stream-openssl.h"
#endif
#include "camel-exception.h"
#include "camel-session.h"
#define d(x) x
static CamelStreamClass *parent_class = NULL;
static ssize_t stream_read (CamelStream *stream, char *buffer, size_t n);
static ssize_t stream_write (CamelStream *stream, const char *buffer, size_t n);
static int stream_flush (CamelStream *stream);
static int stream_close (CamelStream *stream);
static int stream_reset (CamelStream *stream);
static void
camel_http_stream_class_init (CamelHttpStreamClass *camel_http_stream_class)
{
CamelStreamClass *camel_stream_class =
CAMEL_STREAM_CLASS (camel_http_stream_class);
parent_class = CAMEL_STREAM_CLASS (camel_type_get_global_classfuncs (camel_stream_get_type ()));
/* virtual method overload */
camel_stream_class->read = stream_read;
camel_stream_class->write = stream_write;
camel_stream_class->flush = stream_flush;
camel_stream_class->close = stream_close;
camel_stream_class->reset = stream_reset;
}
static void
camel_http_stream_init (gpointer object, gpointer klass)
{
CamelHttpStream *stream = CAMEL_HTTP_STREAM (object);
stream->content_type = NULL;
stream->headers = NULL;
stream->service = NULL;
stream->url = NULL;
stream->raw = NULL;
}
static void
headers_free (http->headers)
{
struct _header_raw *node, *next;
node = http->headers;
while (node) {
next = node->next;
g_free (node->name);
g_free (node->value);
g_free (node);
node = next;
}
}
static void
camel_http_stream_finalize (CamelObject *object)
{
CamelHttpStream *stream = CAMEL_HTTP_STREAM (object);
if (stream->content_type)
header_content_type_unref (stream->content_type);
if (stream->headers)
headers_free (stream->headers);
if (stream->service)
camel_object_unref (CAMEL_OBJECT (service));
if (stream->url)
camel_url_free (stream->url);
if (stream->raw)
camel_object_unref (CAMEL_OBJECT (stream->raw));
}
CamelType
camel_http_stream_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
type = camel_type_register (camel_stream_get_type (),
"CamelHttpStream",
sizeof (CamelHttpStream),
sizeof (CamelHttpStreamClass),
(CamelObjectClassInitFunc) camel_http_stream_class_init,
NULL,
(CamelObjectInitFunc) camel_http_stream_init,
(CamelObjectFinalizeFunc) camel_http_stream_finalize);
}
return type;
}
/**
* camel_http_stream_new:
* @method: HTTP method
* @service: parent service (for SSL/TLS)
* @url: URL to act upon
*
* Return value: a http stream
**/
CamelStream *
camel_http_stream_new (CamelHttpMethod method, CamelService *service, CamelURL *url)
{
CamelHttpStream *stream;
char *str;
g_return_val_if_fail (!CAMEL_IS_SERVICE (service), NULL);
g_return_val_if_fail (url != NULL, NULL);
stream = CAMEL_HTTP_STREAM (camel_object_new (camel_http_stream_get_type ()));
stream->method = method;
stream->service = service;
camel_object_ref (CAMEL_OBJECT (service));
str = camel_url_to_string (url, 0);
stream->url = camel_url_new (str, NULL);
g_free (str);
return CAMEL_STREAM (stream);
}
static CamelStream *
http_connect (CamelService *service, CamelURL *url)
{
CamelStream *buffered, *stream = NULL;
struct hostent *host;
int errsave;
if (!strcasecmp (url->protocol, "https")) {
#ifdef HAVE_NSS
stream = camel_tcp_stream_ssl_new (service, url->host);
#else
#ifdef HAVE_OPENSSL
stream = camel_tcp_stream_openssl_new (service, url->host);
#endif /* HAVE_OPENSSL */
#endif /* HAVE_NSS */
} else {
stream = camel_tcp_stream_raw_new ();
}
if (stream == NULL) {
errno = EINVAL;
return NULL;
}
host = camel_get_host_byname (url->host, NULL);
if (!host) {
errno = EHOSTUNREACH;
return NULL;
}
if (camel_tcp_stream_connect (CAMEL_TCP_STREAM (stream), host, url->port ? url->port : 80) == -1) {
errsave = errno;
camel_object_unref (CAMEL_OBJECT (stream));
camel_free_host (host);
errno = errsave;
return NULL;
}
camel_free_host (host);
buffered = camel_stream_buffer_new (stream, CAMEL_STREAM_BUFFER_READ);
camel_object_unref (CAMEL_OBJECT (stream));
return buffered;
}
static const char *
http_next_token (const unsigned char *in)
{
const char *inptr = in;
while (*inptr && !is_lwsp (*inptr))
inptr++;
while (*inptr && is_lwsp (*inptr))
inptr++;
return inptr;
}
static int
http_get_headers (CamelHttpStream *http)
{
CamelMimeParser *mp;
struct _header_raw *headers, *node, *tail;
const char *type, *token;
int status, len, err;
char *buf;
if (camel_stream_buffer_gets (CAMEL_STREAM_BUFFER (http->raw), buffer, 4096) <= 0)
return -1;
if (!stncasecmp (buffer, "HTTP/", 5)) {
token = http_next_token (buffer);
status = header_decode_int (&token);
/* FIXME: don't just check for 200 */
if (status != 200 /* OK */)
goto exception;
} else
goto exception;
mp = camel_mime_parser_new ();
camel_mime_parser_init_with_stream (mp, http->raw);
switch (camel_mime_parser_step (mp, &buf, &len)) {
case HSCAN_MESSAGE:
case HSCAN_HEADER:
case HSCAN_MULTIPART:
/* we have the headers, build them into 'us' */
headers = camel_mime_parser_headers_raw (mp);
/* if content-type exists, process it first, set for fallback charset in headers */
if (http->content_type)
header_content_type_unref (http->content_type);
type = header_raw_find (&headers, "Content-Type", NULL);
if (type)
http->content_type = header_content_type_decode (type);
else
http->content_type = NULL;
if (http->headers)
headers_free (http->headers);
http->headers = NULL;
tail = (struct _header_raw *) &http->headers;
while (headers) {
node = g_new (struct _header_raw, 1);
node->next = NULL;
node->name = g_strdup (headers->name);
node->value = g_strdup (headers->value);
node->offset = headers->offset;
tail->next = node;
tail = node;
headers = headers->next;
}
break;
default:
g_warning ("Invalid state encountered???: %d", camel_mime_parser_state (mp));
}
err = camel_mime_parser_errno (mp);
camel_object_unref (CAMEL_OBJECT (mp));
if (err != 0)
goto exception;
return 0;
exception:
camel_object_unref (CAMEL_OBJECT (http->raw));
http->raw = NULL;
return -1;
}
static ssize_t
stream_read (CamelStream *stream, char *buffer, size_t n)
{
CamelHttpStream *http = CAMEL_HTTP_STREAM (stream);
if (http->method != CAMEL_HTTP_METHOD_GET || http->method != CAMEL_HTTP_METHOD_HEAD) {
errno = ENOTSUPP;
return -1;
}
if (!http->raw) {
const char *method;
char *url;
http->raw = http_connect (http->service, http->url);
if (!http->raw)
return -1;
switch (http->method) {
case CAMEL_HTTP_METHOD_GET:
method = "GET";
break;
case CAMEL_HTTP_METHOD_HEAD:
method = "HEAD";
break;
}
url = camel_url_to_string (http->url, 0);
if (camel_stream_printf (http->raw, "%s %s HTTP/1.1\r\nHost: %s\r\n\r\n",
method, http->url->path ? http->url->path : "/",
http->url->host) == -1 ||
camel_stream_flush (http->raw) == -1) {
camel_object_unref (CAMEL_OBJECT (http->raw));
http->raw = NULL;
return -1;
}
g_free (url);
if (http_get_headers (http) == -1)
return -1;
}
return camel_stream_read (http->raw, buffer, n);
}
static ssize_t
stream_write (CamelStream *stream, const char *buffer, size_t n)
{
CamelHttpStream *http = CAMEL_HTTP_STREAM (stream);
if (http->method == CAMEL_HTTP_METHOD_GET || http->method == CAMEL_HTTP_METHOD_HEAD) {
errno = ENOTSUPP;
return -1;
}
return -1;
#if 0
if (!http->raw) {
const char *method;
char *url;
http->raw = http_connect (http->service, http->url);
if (!http->raw)
return -1;
switch (http->method) {
case CAMEL_HTTP_METHOD_PUT:
method = "PUT";
break;
case CAMEL_HTTP_METHOD_POST:
method = "POST";
break;
}
url = camel_url_to_string (http->url, 0);
if (camel_stream_printf (http->raw, "%s %s HTTP/1.1\r\nHost: %s\r\n\r\n",
method, http->url->path ? http->url->path : "/",
http->url->host) == -1 ||
camel_stream_flush (http->raw) == -1) {
camel_object_unref (CAMEL_OBJECT (http->raw));
http->raw = NULL;
return -1;
}
g_free (url);
if (http_get_headers (http) == -1)
return -1;
}
return camel_stream_write (http->raw, buffer, n);
#endif
}
static int
stream_flush (CamelStream *stream)
{
if (stream->raw)
return camel_stream_flush (stream->raw);
else
return 0;
}
static int
stream_close (CamelStream *stream)
{
CamelHttpStream *http = CAMEL_HTTP_STREAM (stream);
if (http->raw) {
if (camel_stream_close (http->raw) == -1)
return -1;
camel_object_unref (CAMEL_OBJECT (http->raw));
http->raw = NULL;
}
return 0;
}
static int
stream_reset (CamelStream *stream)
{
CamelHttpStream *http = CAMEL_HTTP_STREAM (stream);
if (http->raw) {
camel_stream_close (http->raw);
camel_object_unref (CAMEL_OBJECT (http->raw));
http->raw = NULL;
}
return 0;
};

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2002 Ximain, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
*
*/
#ifndef __CAMEL_HTTP_STREAM_H__
#define __CAMEL_HTTP_STREAM_H__
#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */
#include <camel/camel-mime-utils.h>
#include <camel/camel-service.h>
#include <camel/camel-stream.h>
#include <camel/camel-url.h>
#define CAMEL_HTTP_STREAM_TYPE (camel_http_stream_get_type ())
#define CAMEL_HTTP_STREAM(obj) (CAMEL_CHECK_CAST((obj), CAMEL_HTTP_STREAM_TYPE, CamelHttpStream))
#define CAMEL_HTTP_STREAM_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), CAMEL_HTTP_STREAM_TYPE, CamelHttpStreamClass))
#define CAMEL_IS_HTTP_STREAM(o) (CAMEL_CHECK_TYPE((o), CAMEL_HTTP_STREAM_TYPE))
typedef enum {
/*CAMEL_HTTP_METHOD_OPTIONS,*/
CAMEL_HTTP_METHOD_GET,
CAMEL_HTTP_METHOD_HEAD,
/*CAMEL_HTTP_METHOD_POST,*/
/*CAMEL_HTTP_METHOD_PUT,*/
/*CAMEL_HTTP_METHOD_DELETE,*/
/*CAMEL_HTTP_METHOD_TRACE,*/
/*CAMEL_HTTP_METHOD_CONNECT*/
} CamelHttpMethod;
typedef struct _CamelHttpStreamClass CamelHttpStreamClass;
typedef struct _CamelHttpStream CamelHttpStream;
struct _CamelHttpStream {
CamelStream parent_object;
CamelContentType *content_type;
struct _header_raw *headers;
CamelHttpMethod method;
CamelService *service;
CamelURL *url;
CamelStream *raw;
};
struct _CamelHttpStreamClass {
CamelStreamClass parent_class;
/* Virtual methods */
};
/* Standard Camel function */
CamelType camel_http_stream_get_type (void);
/* public methods */
CamelStream *camel_http_stream_new (CamelHttpMethod method, CamelService *service, CamelURL *url);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __CAMEL_HTTP_STREAM_H__ */