From 331b663182699a15e4a8c786e6abf2e94547b914 Mon Sep 17 00:00:00 2001 From: Jeffrey Stedfast Date: Mon, 4 Feb 2002 19:59:33 +0000 Subject: Added. New stream for HTTP requests (currently supported are GET and 2002-02-04 Jeffrey Stedfast * 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 --- camel/ChangeLog | 3 + camel/camel-http-stream.c | 441 ++++++++++++++++++++++++++++++++++++++++++++++ camel/camel-http-stream.h | 86 +++++++++ 3 files changed, 530 insertions(+) create mode 100644 camel/camel-http-stream.c create mode 100644 camel/camel-http-stream.h diff --git a/camel/ChangeLog b/camel/ChangeLog index 287bc4cf02..64e6a83717 100644 --- a/camel/ChangeLog +++ b/camel/ChangeLog @@ -1,5 +1,8 @@ 2002-02-04 Jeffrey Stedfast + * 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. diff --git a/camel/camel-http-stream.c b/camel/camel-http-stream.c new file mode 100644 index 0000000000..b7880df2e2 --- /dev/null +++ b/camel/camel-http-stream.c @@ -0,0 +1,441 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Authors: Jeffrey Stedfast + * + * 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 +#endif + +#include +#include +#include +#include + +#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; +}; diff --git a/camel/camel-http-stream.h b/camel/camel-http-stream.h new file mode 100644 index 0000000000..1ffa18d4bd --- /dev/null +++ b/camel/camel-http-stream.h @@ -0,0 +1,86 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * Authors: Jeffrey Stedfast + * + * 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 +#include +#include +#include + +#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__ */ -- cgit v1.2.3