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goma / wine / 93208196c8e3609f16b7d4d0a8e1ae0afa700197 / . / dlls / winhttp / request.c
blob: f6fc577ebdeda298032fc76a577923a952f2c5df [file] [log] [blame]
/*
* Copyright 2004 Mike McCormack for CodeWeavers
* Copyright 2006 Rob Shearman for CodeWeavers
* Copyright 2008 Hans Leidekker for CodeWeavers
* Copyright 2009 Juan Lang
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include "wine/debug.h"
#include <stdarg.h>
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "winhttp.h"
#include "winhttp_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(winhttp);
static const WCHAR attr_accept[] = {'A','c','c','e','p','t',0};
static const WCHAR attr_accept_charset[] = {'A','c','c','e','p','t','-','C','h','a','r','s','e','t', 0};
static const WCHAR attr_accept_encoding[] = {'A','c','c','e','p','t','-','E','n','c','o','d','i','n','g',0};
static const WCHAR attr_accept_language[] = {'A','c','c','e','p','t','-','L','a','n','g','u','a','g','e',0};
static const WCHAR attr_accept_ranges[] = {'A','c','c','e','p','t','-','R','a','n','g','e','s',0};
static const WCHAR attr_age[] = {'A','g','e',0};
static const WCHAR attr_allow[] = {'A','l','l','o','w',0};
static const WCHAR attr_authorization[] = {'A','u','t','h','o','r','i','z','a','t','i','o','n',0};
static const WCHAR attr_cache_control[] = {'C','a','c','h','e','-','C','o','n','t','r','o','l',0};
static const WCHAR attr_connection[] = {'C','o','n','n','e','c','t','i','o','n',0};
static const WCHAR attr_content_base[] = {'C','o','n','t','e','n','t','-','B','a','s','e',0};
static const WCHAR attr_content_encoding[] = {'C','o','n','t','e','n','t','-','E','n','c','o','d','i','n','g',0};
static const WCHAR attr_content_id[] = {'C','o','n','t','e','n','t','-','I','D',0};
static const WCHAR attr_content_language[] = {'C','o','n','t','e','n','t','-','L','a','n','g','u','a','g','e',0};
static const WCHAR attr_content_length[] = {'C','o','n','t','e','n','t','-','L','e','n','g','t','h',0};
static const WCHAR attr_content_location[] = {'C','o','n','t','e','n','t','-','L','o','c','a','t','i','o','n',0};
static const WCHAR attr_content_md5[] = {'C','o','n','t','e','n','t','-','M','D','5',0};
static const WCHAR attr_content_range[] = {'C','o','n','t','e','n','t','-','R','a','n','g','e',0};
static const WCHAR attr_content_transfer_encoding[] = {'C','o','n','t','e','n','t','-','T','r','a','n','s','f','e','r','-','E','n','c','o','d','i','n','g',0};
static const WCHAR attr_content_type[] = {'C','o','n','t','e','n','t','-','T','y','p','e',0};
static const WCHAR attr_cookie[] = {'C','o','o','k','i','e',0};
static const WCHAR attr_date[] = {'D','a','t','e',0};
static const WCHAR attr_from[] = {'F','r','o','m',0};
static const WCHAR attr_etag[] = {'E','T','a','g',0};
static const WCHAR attr_expect[] = {'E','x','p','e','c','t',0};
static const WCHAR attr_expires[] = {'E','x','p','i','r','e','s',0};
static const WCHAR attr_host[] = {'H','o','s','t',0};
static const WCHAR attr_if_match[] = {'I','f','-','M','a','t','c','h',0};
static const WCHAR attr_if_modified_since[] = {'I','f','-','M','o','d','i','f','i','e','d','-','S','i','n','c','e',0};
static const WCHAR attr_if_none_match[] = {'I','f','-','N','o','n','e','-','M','a','t','c','h',0};
static const WCHAR attr_if_range[] = {'I','f','-','R','a','n','g','e',0};
static const WCHAR attr_if_unmodified_since[] = {'I','f','-','U','n','m','o','d','i','f','i','e','d','-','S','i','n','c','e',0};
static const WCHAR attr_last_modified[] = {'L','a','s','t','-','M','o','d','i','f','i','e','d',0};
static const WCHAR attr_location[] = {'L','o','c','a','t','i','o','n',0};
static const WCHAR attr_max_forwards[] = {'M','a','x','-','F','o','r','w','a','r','d','s',0};
static const WCHAR attr_mime_version[] = {'M','i','m','e','-','V','e','r','s','i','o','n',0};
static const WCHAR attr_pragma[] = {'P','r','a','g','m','a',0};
static const WCHAR attr_proxy_authenticate[] = {'P','r','o','x','y','-','A','u','t','h','e','n','t','i','c','a','t','e',0};
static const WCHAR attr_proxy_authorization[] = {'P','r','o','x','y','-','A','u','t','h','o','r','i','z','a','t','i','o','n',0};
static const WCHAR attr_proxy_connection[] = {'P','r','o','x','y','-','C','o','n','n','e','c','t','i','o','n',0};
static const WCHAR attr_public[] = {'P','u','b','l','i','c',0};
static const WCHAR attr_range[] = {'R','a','n','g','e',0};
static const WCHAR attr_referer[] = {'R','e','f','e','r','e','r',0};
static const WCHAR attr_retry_after[] = {'R','e','t','r','y','-','A','f','t','e','r',0};
static const WCHAR attr_server[] = {'S','e','r','v','e','r',0};
static const WCHAR attr_set_cookie[] = {'S','e','t','-','C','o','o','k','i','e',0};
static const WCHAR attr_status[] = {'S','t','a','t','u','s',0};
static const WCHAR attr_transfer_encoding[] = {'T','r','a','n','s','f','e','r','-','E','n','c','o','d','i','n','g',0};
static const WCHAR attr_unless_modified_since[] = {'U','n','l','e','s','s','-','M','o','d','i','f','i','e','d','-','S','i','n','c','e',0};
static const WCHAR attr_upgrade[] = {'U','p','g','r','a','d','e',0};
static const WCHAR attr_uri[] = {'U','R','I',0};
static const WCHAR attr_user_agent[] = {'U','s','e','r','-','A','g','e','n','t',0};
static const WCHAR attr_vary[] = {'V','a','r','y',0};
static const WCHAR attr_via[] = {'V','i','a',0};
static const WCHAR attr_warning[] = {'W','a','r','n','i','n','g',0};
static const WCHAR attr_www_authenticate[] = {'W','W','W','-','A','u','t','h','e','n','t','i','c','a','t','e',0};
static const WCHAR *attribute_table[] =
{
attr_mime_version, /* WINHTTP_QUERY_MIME_VERSION = 0 */
attr_content_type, /* WINHTTP_QUERY_CONTENT_TYPE = 1 */
attr_content_transfer_encoding, /* WINHTTP_QUERY_CONTENT_TRANSFER_ENCODING = 2 */
attr_content_id, /* WINHTTP_QUERY_CONTENT_ID = 3 */
NULL, /* WINHTTP_QUERY_CONTENT_DESCRIPTION = 4 */
attr_content_length, /* WINHTTP_QUERY_CONTENT_LENGTH = 5 */
attr_content_language, /* WINHTTP_QUERY_CONTENT_LANGUAGE = 6 */
attr_allow, /* WINHTTP_QUERY_ALLOW = 7 */
attr_public, /* WINHTTP_QUERY_PUBLIC = 8 */
attr_date, /* WINHTTP_QUERY_DATE = 9 */
attr_expires, /* WINHTTP_QUERY_EXPIRES = 10 */
attr_last_modified, /* WINHTTP_QUERY_LAST_MODIFIEDcw = 11 */
NULL, /* WINHTTP_QUERY_MESSAGE_ID = 12 */
attr_uri, /* WINHTTP_QUERY_URI = 13 */
attr_from, /* WINHTTP_QUERY_DERIVED_FROM = 14 */
NULL, /* WINHTTP_QUERY_COST = 15 */
NULL, /* WINHTTP_QUERY_LINK = 16 */
attr_pragma, /* WINHTTP_QUERY_PRAGMA = 17 */
NULL, /* WINHTTP_QUERY_VERSION = 18 */
attr_status, /* WINHTTP_QUERY_STATUS_CODE = 19 */
NULL, /* WINHTTP_QUERY_STATUS_TEXT = 20 */
NULL, /* WINHTTP_QUERY_RAW_HEADERS = 21 */
NULL, /* WINHTTP_QUERY_RAW_HEADERS_CRLF = 22 */
attr_connection, /* WINHTTP_QUERY_CONNECTION = 23 */
attr_accept, /* WINHTTP_QUERY_ACCEPT = 24 */
attr_accept_charset, /* WINHTTP_QUERY_ACCEPT_CHARSET = 25 */
attr_accept_encoding, /* WINHTTP_QUERY_ACCEPT_ENCODING = 26 */
attr_accept_language, /* WINHTTP_QUERY_ACCEPT_LANGUAGE = 27 */
attr_authorization, /* WINHTTP_QUERY_AUTHORIZATION = 28 */
attr_content_encoding, /* WINHTTP_QUERY_CONTENT_ENCODING = 29 */
NULL, /* WINHTTP_QUERY_FORWARDED = 30 */
NULL, /* WINHTTP_QUERY_FROM = 31 */
attr_if_modified_since, /* WINHTTP_QUERY_IF_MODIFIED_SINCE = 32 */
attr_location, /* WINHTTP_QUERY_LOCATION = 33 */
NULL, /* WINHTTP_QUERY_ORIG_URI = 34 */
attr_referer, /* WINHTTP_QUERY_REFERER = 35 */
attr_retry_after, /* WINHTTP_QUERY_RETRY_AFTER = 36 */
attr_server, /* WINHTTP_QUERY_SERVER = 37 */
NULL, /* WINHTTP_TITLE = 38 */
attr_user_agent, /* WINHTTP_QUERY_USER_AGENT = 39 */
attr_www_authenticate, /* WINHTTP_QUERY_WWW_AUTHENTICATE = 40 */
attr_proxy_authenticate, /* WINHTTP_QUERY_PROXY_AUTHENTICATE = 41 */
attr_accept_ranges, /* WINHTTP_QUERY_ACCEPT_RANGES = 42 */
attr_set_cookie, /* WINHTTP_QUERY_SET_COOKIE = 43 */
attr_cookie, /* WINHTTP_QUERY_COOKIE = 44 */
NULL, /* WINHTTP_QUERY_REQUEST_METHOD = 45 */
NULL, /* WINHTTP_QUERY_REFRESH = 46 */
NULL, /* WINHTTP_QUERY_CONTENT_DISPOSITION = 47 */
attr_age, /* WINHTTP_QUERY_AGE = 48 */
attr_cache_control, /* WINHTTP_QUERY_CACHE_CONTROL = 49 */
attr_content_base, /* WINHTTP_QUERY_CONTENT_BASE = 50 */
attr_content_location, /* WINHTTP_QUERY_CONTENT_LOCATION = 51 */
attr_content_md5, /* WINHTTP_QUERY_CONTENT_MD5 = 52 */
attr_content_range, /* WINHTTP_QUERY_CONTENT_RANGE = 53 */
attr_etag, /* WINHTTP_QUERY_ETAG = 54 */
attr_host, /* WINHTTP_QUERY_HOST = 55 */
attr_if_match, /* WINHTTP_QUERY_IF_MATCH = 56 */
attr_if_none_match, /* WINHTTP_QUERY_IF_NONE_MATCH = 57 */
attr_if_range, /* WINHTTP_QUERY_IF_RANGE = 58 */
attr_if_unmodified_since, /* WINHTTP_QUERY_IF_UNMODIFIED_SINCE = 59 */
attr_max_forwards, /* WINHTTP_QUERY_MAX_FORWARDS = 60 */
attr_proxy_authorization, /* WINHTTP_QUERY_PROXY_AUTHORIZATION = 61 */
attr_range, /* WINHTTP_QUERY_RANGE = 62 */
attr_transfer_encoding, /* WINHTTP_QUERY_TRANSFER_ENCODING = 63 */
attr_upgrade, /* WINHTTP_QUERY_UPGRADE = 64 */
attr_vary, /* WINHTTP_QUERY_VARY = 65 */
attr_via, /* WINHTTP_QUERY_VIA = 66 */
attr_warning, /* WINHTTP_QUERY_WARNING = 67 */
attr_expect, /* WINHTTP_QUERY_EXPECT = 68 */
attr_proxy_connection, /* WINHTTP_QUERY_PROXY_CONNECTION = 69 */
attr_unless_modified_since, /* WINHTTP_QUERY_UNLESS_MODIFIED_SINCE = 70 */
NULL, /* WINHTTP_QUERY_PROXY_SUPPORT = 75 */
NULL, /* WINHTTP_QUERY_AUTHENTICATION_INFO = 76 */
NULL, /* WINHTTP_QUERY_PASSPORT_URLS = 77 */
NULL /* WINHTTP_QUERY_PASSPORT_CONFIG = 78 */
};
static DWORD CALLBACK task_thread( LPVOID param )
{
task_header_t *task = param;
task->proc( task );
release_object( &task->request->hdr );
heap_free( task );
return ERROR_SUCCESS;
}
static BOOL queue_task( task_header_t *task )
{
return QueueUserWorkItem( task_thread, task, WT_EXECUTELONGFUNCTION );
}
static void free_header( header_t *header )
{
heap_free( header->field );
heap_free( header->value );
heap_free( header );
}
static BOOL valid_token_char( WCHAR c )
{
if (c < 32 || c == 127) return FALSE;
switch (c)
{
case '(': case ')':
case '<': case '>':
case '@': case ',':
case ';': case ':':
case '\\': case '\"':
case '/': case '[':
case ']': case '?':
case '=': case '{':
case '}': case ' ':
case '\t':
return FALSE;
default:
return TRUE;
}
}
static header_t *parse_header( LPCWSTR string )
{
const WCHAR *p, *q;
header_t *header;
int len;
p = string;
if (!(q = strchrW( p, ':' )))
{
WARN("no ':' in line %s\n", debugstr_w(string));
return NULL;
}
if (q == string)
{
WARN("empty field name in line %s\n", debugstr_w(string));
return NULL;
}
while (*p != ':')
{
if (!valid_token_char( *p ))
{
WARN("invalid character in field name %s\n", debugstr_w(string));
return NULL;
}
p++;
}
len = q - string;
if (!(header = heap_alloc_zero( sizeof(header_t) ))) return NULL;
if (!(header->field = heap_alloc( (len + 1) * sizeof(WCHAR) )))
{
heap_free( header );
return NULL;
}
memcpy( header->field, string, len * sizeof(WCHAR) );
header->field[len] = 0;
q++; /* skip past colon */
while (*q == ' ') q++;
if (!*q)
{
WARN("no value in line %s\n", debugstr_w(string));
return header;
}
len = strlenW( q );
if (!(header->value = heap_alloc( (len + 1) * sizeof(WCHAR) )))
{
free_header( header );
return NULL;
}
memcpy( header->value, q, len * sizeof(WCHAR) );
header->value[len] = 0;
return header;
}
static int get_header_index( request_t *request, LPCWSTR field, int requested_index, BOOL request_only )
{
int index;
TRACE("%s\n", debugstr_w(field));
for (index = 0; index < request->num_headers; index++)
{
if (strcmpiW( request->headers[index].field, field )) continue;
if (request_only && !request->headers[index].is_request) continue;
if (!request_only && request->headers[index].is_request) continue;
if (!requested_index) break;
requested_index--;
}
if (index >= request->num_headers) index = -1;
TRACE("returning %d\n", index);
return index;
}
static BOOL insert_header( request_t *request, header_t *header )
{
DWORD count;
header_t *hdrs;
count = request->num_headers + 1;
if (count > 1)
hdrs = heap_realloc_zero( request->headers, sizeof(header_t) * count );
else
hdrs = heap_alloc_zero( sizeof(header_t) * count );
if (hdrs)
{
request->headers = hdrs;
request->headers[count - 1].field = strdupW( header->field );
request->headers[count - 1].value = strdupW( header->value );
request->headers[count - 1].is_request = header->is_request;
request->num_headers++;
return TRUE;
}
return FALSE;
}
static BOOL delete_header( request_t *request, DWORD index )
{
if (!request->num_headers) return FALSE;
if (index >= request->num_headers) return FALSE;
request->num_headers--;
heap_free( request->headers[index].field );
heap_free( request->headers[index].value );
memmove( &request->headers[index], &request->headers[index + 1], (request->num_headers - index) * sizeof(header_t) );
memset( &request->headers[request->num_headers], 0, sizeof(header_t) );
return TRUE;
}
static BOOL process_header( request_t *request, LPCWSTR field, LPCWSTR value, DWORD flags, BOOL request_only )
{
int index;
header_t *header;
TRACE("%s: %s 0x%08x\n", debugstr_w(field), debugstr_w(value), flags);
/* replace wins out over add */
if (flags & WINHTTP_ADDREQ_FLAG_REPLACE) flags &= ~WINHTTP_ADDREQ_FLAG_ADD;
if (flags & WINHTTP_ADDREQ_FLAG_ADD) index = -1;
else
index = get_header_index( request, field, 0, request_only );
if (index >= 0)
{
if (flags & WINHTTP_ADDREQ_FLAG_ADD_IF_NEW) return FALSE;
header = &request->headers[index];
}
else if (value)
{
header_t hdr;
hdr.field = (LPWSTR)field;
hdr.value = (LPWSTR)value;
hdr.is_request = request_only;
return insert_header( request, &hdr );
}
/* no value to delete */
else return TRUE;
if (flags & WINHTTP_ADDREQ_FLAG_REPLACE)
{
delete_header( request, index );
if (value)
{
header_t hdr;
hdr.field = (LPWSTR)field;
hdr.value = (LPWSTR)value;
hdr.is_request = request_only;
return insert_header( request, &hdr );
}
return TRUE;
}
else if (flags & (WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA | WINHTTP_ADDREQ_FLAG_COALESCE_WITH_SEMICOLON))
{
WCHAR sep, *tmp;
int len, orig_len, value_len;
orig_len = strlenW( header->value );
value_len = strlenW( value );
if (flags & WINHTTP_ADDREQ_FLAG_COALESCE_WITH_COMMA) sep = ',';
else sep = ';';
len = orig_len + value_len + 2;
if ((tmp = heap_realloc( header->value, (len + 1) * sizeof(WCHAR) )))
{
header->value = tmp;
header->value[orig_len] = sep;
orig_len++;
header->value[orig_len] = ' ';
orig_len++;
memcpy( &header->value[orig_len], value, value_len * sizeof(WCHAR) );
header->value[len] = 0;
return TRUE;
}
}
return TRUE;
}
BOOL add_request_headers( request_t *request, LPCWSTR headers, DWORD len, DWORD flags )
{
BOOL ret = FALSE;
WCHAR *buffer, *p, *q;
header_t *header;
if (len == ~0u) len = strlenW( headers );
if (!len) return TRUE;
if (!(buffer = heap_alloc( (len + 1) * sizeof(WCHAR) ))) return FALSE;
strcpyW( buffer, headers );
p = buffer;
do
{
q = p;
while (*q)
{
if (q[0] == '\r' && q[1] == '\n') break;
q++;
}
if (!*p) break;
if (*q == '\r')
{
*q = 0;
q += 2; /* jump over \r\n */
}
if ((header = parse_header( p )))
{
ret = process_header( request, header->field, header->value, flags, TRUE );
free_header( header );
}
p = q;
} while (ret);
heap_free( buffer );
return ret;
}
/***********************************************************************
* WinHttpAddRequestHeaders (winhttp.@)
*/
BOOL WINAPI WinHttpAddRequestHeaders( HINTERNET hrequest, LPCWSTR headers, DWORD len, DWORD flags )
{
BOOL ret;
request_t *request;
TRACE("%p, %s, 0x%x, 0x%08x\n", hrequest, debugstr_w(headers), len, flags);
if (!headers)
{
set_last_error( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
ret = add_request_headers( request, headers, len, flags );
release_object( &request->hdr );
return ret;
}
static WCHAR *build_request_path( request_t *request )
{
WCHAR *ret;
if (strcmpiW( request->connect->hostname, request->connect->servername ))
{
static const WCHAR http[] = { 'h','t','t','p',0 };
static const WCHAR https[] = { 'h','t','t','p','s',0 };
static const WCHAR fmt[] = { '%','s',':','/','/','%','s',0 };
LPCWSTR scheme = request->netconn.secure ? https : http;
int len;
len = strlenW( scheme ) + strlenW( request->connect->hostname );
/* 3 characters for '://', 1 for NUL. */
len += 4;
if (request->connect->hostport)
{
/* 1 for ':' between host and port, up to 5 for port */
len += 6;
}
if (request->path)
len += strlenW( request->path );
if ((ret = heap_alloc( len * sizeof(WCHAR) )))
{
sprintfW( ret, fmt, scheme, request->connect->hostname );
if (request->connect->hostport)
{
static const WCHAR colonFmt[] = { ':','%','d',0 };
sprintfW( ret + strlenW( ret ), colonFmt,
request->connect->hostport );
}
if (request->path)
strcatW( ret, request->path );
}
}
else
ret = request->path;
return ret;
}
static WCHAR *build_request_string( request_t *request )
{
static const WCHAR space[] = {' ',0};
static const WCHAR crlf[] = {'\r','\n',0};
static const WCHAR colon[] = {':',' ',0};
static const WCHAR twocrlf[] = {'\r','\n','\r','\n',0};
WCHAR *path, *ret;
const WCHAR **headers, **p;
unsigned int len, i = 0, j;
/* allocate space for an array of all the string pointers to be added */
len = request->num_headers * 4 + 7;
if (!(headers = heap_alloc( len * sizeof(LPCWSTR) ))) return NULL;
path = build_request_path( request );
headers[i++] = request->verb;
headers[i++] = space;
headers[i++] = path;
headers[i++] = space;
headers[i++] = request->version;
for (j = 0; j < request->num_headers; j++)
{
if (request->headers[j].is_request)
{
headers[i++] = crlf;
headers[i++] = request->headers[j].field;
headers[i++] = colon;
headers[i++] = request->headers[j].value;
TRACE("adding header %s (%s)\n", debugstr_w(request->headers[j].field),
debugstr_w(request->headers[j].value));
}
}
headers[i++] = twocrlf;
headers[i] = NULL;
len = 0;
for (p = headers; *p; p++) len += strlenW( *p );
len++;
if (!(ret = heap_alloc( len * sizeof(WCHAR) )))
goto out;
*ret = 0;
for (p = headers; *p; p++) strcatW( ret, *p );
out:
if (path != request->path)
heap_free( path );
heap_free( headers );
return ret;
}
#define QUERY_MODIFIER_MASK (WINHTTP_QUERY_FLAG_REQUEST_HEADERS | WINHTTP_QUERY_FLAG_SYSTEMTIME | WINHTTP_QUERY_FLAG_NUMBER)
static BOOL query_headers( request_t *request, DWORD level, LPCWSTR name, LPVOID buffer, LPDWORD buflen, LPDWORD index )
{
header_t *header = NULL;
BOOL request_only, ret = FALSE;
int requested_index, header_index = -1;
DWORD attr, len;
request_only = level & WINHTTP_QUERY_FLAG_REQUEST_HEADERS;
requested_index = index ? *index : 0;
attr = level & ~QUERY_MODIFIER_MASK;
switch (attr)
{
case WINHTTP_QUERY_CUSTOM:
{
header_index = get_header_index( request, name, requested_index, request_only );
break;
}
case WINHTTP_QUERY_RAW_HEADERS:
{
WCHAR *headers, *p, *q;
if (request_only)
headers = build_request_string( request );
else
headers = request->raw_headers;
if (!(p = headers)) return FALSE;
for (len = 0; *p; p++) if (*p != '\r') len++;
if (!buffer || (len + 1) * sizeof(WCHAR) > *buflen)
{
len++;
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else
{
for (p = headers, q = buffer; *p; p++, q++)
{
if (*p != '\r') *q = *p;
else
{
*q = 0;
p++; /* skip '\n' */
}
}
*q = 0;
TRACE("returning data: %s\n", debugstr_wn(buffer, len));
ret = TRUE;
}
*buflen = len * sizeof(WCHAR);
if (request_only) heap_free( headers );
return ret;
}
case WINHTTP_QUERY_RAW_HEADERS_CRLF:
{
WCHAR *headers;
if (request_only)
headers = build_request_string( request );
else
headers = request->raw_headers;
if (!headers) return FALSE;
len = strlenW( headers ) * sizeof(WCHAR);
if (!buffer || len + sizeof(WCHAR) > *buflen)
{
len += sizeof(WCHAR);
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else
{
memcpy( buffer, headers, len + sizeof(WCHAR) );
TRACE("returning data: %s\n", debugstr_wn(buffer, len / sizeof(WCHAR)));
ret = TRUE;
}
*buflen = len;
if (request_only) heap_free( headers );
return ret;
}
case WINHTTP_QUERY_VERSION:
len = strlenW( request->version ) * sizeof(WCHAR);
if (!buffer || len + sizeof(WCHAR) > *buflen)
{
len += sizeof(WCHAR);
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else
{
strcpyW( buffer, request->version );
TRACE("returning string: %s\n", debugstr_w(buffer));
ret = TRUE;
}
*buflen = len;
return ret;
case WINHTTP_QUERY_STATUS_TEXT:
len = strlenW( request->status_text ) * sizeof(WCHAR);
if (!buffer || len + sizeof(WCHAR) > *buflen)
{
len += sizeof(WCHAR);
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else
{
strcpyW( buffer, request->status_text );
TRACE("returning string: %s\n", debugstr_w(buffer));
ret = TRUE;
}
*buflen = len;
return ret;
default:
if (attr >= sizeof(attribute_table)/sizeof(attribute_table[0]) || !attribute_table[attr])
{
FIXME("attribute %u not implemented\n", attr);
return FALSE;
}
TRACE("attribute %s\n", debugstr_w(attribute_table[attr]));
header_index = get_header_index( request, attribute_table[attr], requested_index, request_only );
break;
}
if (header_index >= 0)
{
header = &request->headers[header_index];
}
if (!header || (request_only && !header->is_request))
{
set_last_error( ERROR_WINHTTP_HEADER_NOT_FOUND );
return FALSE;
}
if (index) *index += 1;
if (level & WINHTTP_QUERY_FLAG_NUMBER)
{
if (!buffer || sizeof(int) > *buflen)
{
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else
{
int *number = buffer;
*number = atoiW( header->value );
TRACE("returning number: %d\n", *number);
ret = TRUE;
}
*buflen = sizeof(int);
}
else if (level & WINHTTP_QUERY_FLAG_SYSTEMTIME)
{
SYSTEMTIME *st = buffer;
if (!buffer || sizeof(SYSTEMTIME) > *buflen)
{
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else if ((ret = WinHttpTimeToSystemTime( header->value, st )))
{
TRACE("returning time: %04d/%02d/%02d - %d - %02d:%02d:%02d.%02d\n",
st->wYear, st->wMonth, st->wDay, st->wDayOfWeek,
st->wHour, st->wMinute, st->wSecond, st->wMilliseconds);
}
*buflen = sizeof(SYSTEMTIME);
}
else if (header->value)
{
len = strlenW( header->value ) * sizeof(WCHAR);
if (!buffer || len + sizeof(WCHAR) > *buflen)
{
len += sizeof(WCHAR);
set_last_error( ERROR_INSUFFICIENT_BUFFER );
}
else
{
strcpyW( buffer, header->value );
TRACE("returning string: %s\n", debugstr_w(buffer));
ret = TRUE;
}
*buflen = len;
}
return ret;
}
/***********************************************************************
* WinHttpQueryHeaders (winhttp.@)
*/
BOOL WINAPI WinHttpQueryHeaders( HINTERNET hrequest, DWORD level, LPCWSTR name, LPVOID buffer, LPDWORD buflen, LPDWORD index )
{
BOOL ret;
request_t *request;
TRACE("%p, 0x%08x, %s, %p, %p, %p\n", hrequest, level, debugstr_w(name), buffer, buflen, index);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
ret = query_headers( request, level, name, buffer, buflen, index );
release_object( &request->hdr );
return ret;
}
static LPWSTR concatenate_string_list( LPCWSTR *list, int len )
{
LPCWSTR *t;
LPWSTR str;
for( t = list; *t ; t++ )
len += strlenW( *t );
len++;
str = heap_alloc( len * sizeof(WCHAR) );
if (!str) return NULL;
*str = 0;
for( t = list; *t ; t++ )
strcatW( str, *t );
return str;
}
static LPWSTR build_header_request_string( request_t *request, LPCWSTR verb,
LPCWSTR path, LPCWSTR version )
{
static const WCHAR crlf[] = {'\r','\n',0};
static const WCHAR space[] = { ' ',0 };
static const WCHAR colon[] = { ':',' ',0 };
static const WCHAR twocrlf[] = {'\r','\n','\r','\n', 0};
LPWSTR requestString;
DWORD len, n;
LPCWSTR *req;
UINT i;
LPWSTR p;
/* allocate space for an array of all the string pointers to be added */
len = (request->num_headers) * 4 + 10;
req = heap_alloc( len * sizeof(LPCWSTR) );
if (!req) return NULL;
/* add the verb, path and HTTP version string */
n = 0;
req[n++] = verb;
req[n++] = space;
req[n++] = path;
req[n++] = space;
req[n++] = version;
/* Append custom request headers */
for (i = 0; i < request->num_headers; i++)
{
if (request->headers[i].is_request)
{
req[n++] = crlf;
req[n++] = request->headers[i].field;
req[n++] = colon;
req[n++] = request->headers[i].value;
TRACE("Adding custom header %s (%s)\n",
debugstr_w(request->headers[i].field),
debugstr_w(request->headers[i].value));
}
}
if( n >= len )
ERR("oops. buffer overrun\n");
req[n] = NULL;
requestString = concatenate_string_list( req, 4 );
heap_free( req );
if (!requestString) return NULL;
/*
* Set (header) termination string for request
* Make sure there's exactly two new lines at the end of the request
*/
p = &requestString[strlenW(requestString)-1];
while ( (*p == '\n') || (*p == '\r') )
p--;
strcpyW( p+1, twocrlf );
return requestString;
}
static BOOL read_reply( request_t *request );
static BOOL secure_proxy_connect( request_t *request )
{
static const WCHAR verbConnect[] = {'C','O','N','N','E','C','T',0};
static const WCHAR fmt[] = {'%','s',':','%','d',0};
BOOL ret = FALSE;
LPWSTR path;
connect_t *connect = request->connect;
path = heap_alloc( (strlenW( connect->hostname ) + 13) * sizeof(WCHAR) );
if (path)
{
LPWSTR requestString;
sprintfW( path, fmt, connect->hostname, connect->hostport );
requestString = build_header_request_string( request, verbConnect,
path, http1_1 );
heap_free( path );
if (requestString)
{
LPSTR req_ascii = strdupWA( requestString );
heap_free( requestString );
if (req_ascii)
{
int len = strlen( req_ascii ), bytes_sent;
ret = netconn_send( &request->netconn, req_ascii, len, 0, &bytes_sent );
heap_free( req_ascii );
if (ret)
ret = read_reply( request );
}
}
}
return ret;
}
#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN 46
#endif
static BOOL open_connection( request_t *request )
{
connect_t *connect;
const void *addr;
char address[INET6_ADDRSTRLEN];
WCHAR *addressW;
INTERNET_PORT port;
socklen_t slen;
if (netconn_connected( &request->netconn )) return TRUE;
connect = request->connect;
port = connect->serverport ? connect->serverport : (request->hdr.flags & WINHTTP_FLAG_SECURE ? 443 : 80);
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_RESOLVING_NAME, connect->servername, strlenW(connect->servername) + 1 );
slen = sizeof(connect->sockaddr);
if (!netconn_resolve( connect->servername, port, (struct sockaddr *)&connect->sockaddr, &slen, request->resolve_timeout )) return FALSE;
switch (connect->sockaddr.ss_family)
{
case AF_INET:
addr = &((struct sockaddr_in *)&connect->sockaddr)->sin_addr;
break;
case AF_INET6:
addr = &((struct sockaddr_in6 *)&connect->sockaddr)->sin6_addr;
break;
default:
WARN("unsupported address family %d\n", connect->sockaddr.ss_family);
return FALSE;
}
inet_ntop( connect->sockaddr.ss_family, addr, address, sizeof(address) );
addressW = strdupAW( address );
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_NAME_RESOLVED, addressW, strlenW(addressW) + 1 );
TRACE("connecting to %s:%u\n", address, port);
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_CONNECTING_TO_SERVER, addressW, 0 );
if (!netconn_create( &request->netconn, connect->sockaddr.ss_family, SOCK_STREAM, 0 ))
{
heap_free( addressW );
return FALSE;
}
netconn_set_timeout( &request->netconn, TRUE, request->send_timeout );
netconn_set_timeout( &request->netconn, FALSE, request->recv_timeout );
if (!netconn_connect( &request->netconn, (struct sockaddr *)&connect->sockaddr, slen, request->connect_timeout ))
{
netconn_close( &request->netconn );
heap_free( addressW );
return FALSE;
}
if (request->hdr.flags & WINHTTP_FLAG_SECURE)
{
if (connect->session->proxy_server &&
strcmpiW( connect->hostname, connect->servername ))
{
if (!secure_proxy_connect( request ))
{
heap_free( addressW );
return FALSE;
}
}
if (!netconn_secure_connect( &request->netconn, connect->servername ))
{
netconn_close( &request->netconn );
heap_free( addressW );
return FALSE;
}
}
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_CONNECTED_TO_SERVER, addressW, strlenW(addressW) + 1 );
heap_free( addressW );
return TRUE;
}
void close_connection( request_t *request )
{
if (!netconn_connected( &request->netconn )) return;
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_CLOSING_CONNECTION, 0, 0 );
netconn_close( &request->netconn );
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_CONNECTION_CLOSED, 0, 0 );
}
static BOOL add_host_header( request_t *request, DWORD modifier )
{
BOOL ret;
DWORD len;
WCHAR *host;
static const WCHAR fmt[] = {'%','s',':','%','u',0};
connect_t *connect = request->connect;
INTERNET_PORT port;
port = connect->hostport ? connect->hostport : (request->hdr.flags & WINHTTP_FLAG_SECURE ? 443 : 80);
if (port == INTERNET_DEFAULT_HTTP_PORT || port == INTERNET_DEFAULT_HTTPS_PORT)
{
return process_header( request, attr_host, connect->hostname, modifier, TRUE );
}
len = strlenW( connect->hostname ) + 7; /* sizeof(":65335") */
if (!(host = heap_alloc( len * sizeof(WCHAR) ))) return FALSE;
sprintfW( host, fmt, connect->hostname, port );
ret = process_header( request, attr_host, host, modifier, TRUE );
heap_free( host );
return ret;
}
static BOOL send_request( request_t *request, LPCWSTR headers, DWORD headers_len, LPVOID optional,
DWORD optional_len, DWORD total_len, DWORD_PTR context, BOOL async )
{
static const WCHAR keep_alive[] = {'K','e','e','p','-','A','l','i','v','e',0};
static const WCHAR no_cache[] = {'n','o','-','c','a','c','h','e',0};
static const WCHAR length_fmt[] = {'%','l','d',0};
BOOL ret = FALSE;
connect_t *connect = request->connect;
session_t *session = connect->session;
WCHAR *req = NULL;
char *req_ascii;
int bytes_sent;
DWORD len;
if (session->agent)
process_header( request, attr_user_agent, session->agent, WINHTTP_ADDREQ_FLAG_ADD_IF_NEW, TRUE );
if (connect->hostname)
add_host_header( request, WINHTTP_ADDREQ_FLAG_ADD_IF_NEW );
if (total_len || (request->verb && !strcmpW( request->verb, postW )))
{
WCHAR length[21]; /* decimal long int + null */
sprintfW( length, length_fmt, total_len );
process_header( request, attr_content_length, length, WINHTTP_ADDREQ_FLAG_ADD_IF_NEW, TRUE );
}
if (!(request->hdr.disable_flags & WINHTTP_DISABLE_KEEP_ALIVE))
{
process_header( request, attr_connection, keep_alive, WINHTTP_ADDREQ_FLAG_ADD_IF_NEW, TRUE );
}
if (request->hdr.flags & WINHTTP_FLAG_REFRESH)
{
process_header( request, attr_pragma, no_cache, WINHTTP_ADDREQ_FLAG_ADD_IF_NEW, TRUE );
process_header( request, attr_cache_control, no_cache, WINHTTP_ADDREQ_FLAG_ADD_IF_NEW, TRUE );
}
if (headers && !add_request_headers( request, headers, headers_len, WINHTTP_ADDREQ_FLAG_ADD | WINHTTP_ADDREQ_FLAG_REPLACE ))
{
TRACE("failed to add request headers\n");
return FALSE;
}
if (!(request->hdr.disable_flags & WINHTTP_DISABLE_COOKIES) && !add_cookie_headers( request ))
{
WARN("failed to add cookie headers\n");
return FALSE;
}
if (!(ret = open_connection( request ))) goto end;
if (!(req = build_request_string( request ))) goto end;
if (!(req_ascii = strdupWA( req ))) goto end;
TRACE("full request: %s\n", debugstr_a(req_ascii));
len = strlen(req_ascii);
if (context) request->hdr.context = context;
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_SENDING_REQUEST, NULL, 0 );
ret = netconn_send( &request->netconn, req_ascii, len, 0, &bytes_sent );
heap_free( req_ascii );
if (!ret) goto end;
if (optional_len && !netconn_send( &request->netconn, optional, optional_len, 0, &bytes_sent )) goto end;
len += optional_len;
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REQUEST_SENT, &len, sizeof(DWORD) );
end:
if (async)
{
if (ret) send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_SENDREQUEST_COMPLETE, NULL, 0 );
else
{
WINHTTP_ASYNC_RESULT result;
result.dwResult = API_SEND_REQUEST;
result.dwError = get_last_error();
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, &result, sizeof(result) );
}
}
heap_free( req );
return ret;
}
static void task_send_request( task_header_t *task )
{
send_request_t *s = (send_request_t *)task;
send_request( s->hdr.request, s->headers, s->headers_len, s->optional, s->optional_len, s->total_len, s->context, TRUE );
heap_free( s->headers );
}
/***********************************************************************
* WinHttpSendRequest (winhttp.@)
*/
BOOL WINAPI WinHttpSendRequest( HINTERNET hrequest, LPCWSTR headers, DWORD headers_len,
LPVOID optional, DWORD optional_len, DWORD total_len, DWORD_PTR context )
{
BOOL ret;
request_t *request;
TRACE("%p, %s, 0x%x, %u, %u, %lx\n",
hrequest, debugstr_w(headers), headers_len, optional_len, total_len, context);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
if (request->connect->hdr.flags & WINHTTP_FLAG_ASYNC)
{
send_request_t *s;
if (!(s = heap_alloc( sizeof(send_request_t) ))) return FALSE;
s->hdr.request = request;
s->hdr.proc = task_send_request;
s->headers = strdupW( headers );
s->headers_len = headers_len;
s->optional = optional;
s->optional_len = optional_len;
s->total_len = total_len;
s->context = context;
addref_object( &request->hdr );
ret = queue_task( (task_header_t *)s );
}
else
ret = send_request( request, headers, headers_len, optional, optional_len, total_len, context, FALSE );
release_object( &request->hdr );
return ret;
}
#define ARRAYSIZE(array) (sizeof(array) / sizeof((array)[0]))
static DWORD auth_scheme_from_header( WCHAR *header )
{
static const WCHAR basic[] = {'B','a','s','i','c'};
static const WCHAR ntlm[] = {'N','T','L','M'};
static const WCHAR passport[] = {'P','a','s','s','p','o','r','t'};
static const WCHAR digest[] = {'D','i','g','e','s','t'};
static const WCHAR negotiate[] = {'N','e','g','o','t','i','a','t','e'};
if (!strncmpiW( header, basic, ARRAYSIZE(basic) ) &&
(header[ARRAYSIZE(basic)] == ' ' || !header[ARRAYSIZE(basic)])) return WINHTTP_AUTH_SCHEME_BASIC;
if (!strncmpiW( header, ntlm, ARRAYSIZE(ntlm) ) &&
(header[ARRAYSIZE(ntlm)] == ' ' || !header[ARRAYSIZE(ntlm)])) return WINHTTP_AUTH_SCHEME_NTLM;
if (!strncmpiW( header, passport, ARRAYSIZE(passport) ) &&
(header[ARRAYSIZE(passport)] == ' ' || !header[ARRAYSIZE(passport)])) return WINHTTP_AUTH_SCHEME_PASSPORT;
if (!strncmpiW( header, digest, ARRAYSIZE(digest) ) &&
(header[ARRAYSIZE(digest)] == ' ' || !header[ARRAYSIZE(digest)])) return WINHTTP_AUTH_SCHEME_DIGEST;
if (!strncmpiW( header, negotiate, ARRAYSIZE(negotiate) ) &&
(header[ARRAYSIZE(negotiate)] == ' ' || !header[ARRAYSIZE(negotiate)])) return WINHTTP_AUTH_SCHEME_NEGOTIATE;
return 0;
}
static BOOL query_auth_schemes( request_t *request, DWORD level, LPDWORD supported, LPDWORD first )
{
DWORD index = 0;
BOOL ret = FALSE;
for (;;)
{
WCHAR *buffer;
DWORD size, scheme;
size = 0;
query_headers( request, level, NULL, NULL, &size, &index );
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) break;
index--;
if (!(buffer = heap_alloc( size ))) return FALSE;
if (!query_headers( request, level, NULL, buffer, &size, &index ))
{
heap_free( buffer );
return FALSE;
}
scheme = auth_scheme_from_header( buffer );
if (first && index == 1) *first = scheme;
*supported |= scheme;
heap_free( buffer );
ret = TRUE;
}
return ret;
}
/***********************************************************************
* WinHttpQueryAuthSchemes (winhttp.@)
*/
BOOL WINAPI WinHttpQueryAuthSchemes( HINTERNET hrequest, LPDWORD supported, LPDWORD first, LPDWORD target )
{
BOOL ret = FALSE;
request_t *request;
TRACE("%p, %p, %p, %p\n", hrequest, supported, first, target);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
if (query_auth_schemes( request, WINHTTP_QUERY_WWW_AUTHENTICATE, supported, first ))
{
*target = WINHTTP_AUTH_TARGET_SERVER;
ret = TRUE;
}
else if (query_auth_schemes( request, WINHTTP_QUERY_PROXY_AUTHENTICATE, supported, first ))
{
*target = WINHTTP_AUTH_TARGET_PROXY;
ret = TRUE;
}
release_object( &request->hdr );
return ret;
}
static UINT encode_base64( const char *bin, unsigned int len, WCHAR *base64 )
{
UINT n = 0, x;
static const char base64enc[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
while (len > 0)
{
/* first 6 bits, all from bin[0] */
base64[n++] = base64enc[(bin[0] & 0xfc) >> 2];
x = (bin[0] & 3) << 4;
/* next 6 bits, 2 from bin[0] and 4 from bin[1] */
if (len == 1)
{
base64[n++] = base64enc[x];
base64[n++] = '=';
base64[n++] = '=';
break;
}
base64[n++] = base64enc[x | ((bin[1] & 0xf0) >> 4)];
x = (bin[1] & 0x0f) << 2;
/* next 6 bits 4 from bin[1] and 2 from bin[2] */
if (len == 2)
{
base64[n++] = base64enc[x];
base64[n++] = '=';
break;
}
base64[n++] = base64enc[x | ((bin[2] & 0xc0) >> 6)];
/* last 6 bits, all from bin [2] */
base64[n++] = base64enc[bin[2] & 0x3f];
bin += 3;
len -= 3;
}
base64[n] = 0;
return n;
}
static BOOL set_credentials( request_t *request, DWORD target, DWORD scheme, LPCWSTR username, LPCWSTR password )
{
static const WCHAR basic[] = {'B','a','s','i','c',' ',0};
const WCHAR *auth_scheme, *auth_target;
WCHAR *auth_header;
DWORD len, auth_data_len;
char *auth_data;
BOOL ret;
if (!username || !password)
{
set_last_error( ERROR_INVALID_PARAMETER );
return FALSE;
}
switch (target)
{
case WINHTTP_AUTH_TARGET_SERVER: auth_target = attr_authorization; break;
case WINHTTP_AUTH_TARGET_PROXY: auth_target = attr_proxy_authorization; break;
default:
WARN("unknown target %x\n", target);
return FALSE;
}
switch (scheme)
{
case WINHTTP_AUTH_SCHEME_BASIC:
{
int userlen = WideCharToMultiByte( CP_UTF8, 0, username, strlenW( username ), NULL, 0, NULL, NULL );
int passlen = WideCharToMultiByte( CP_UTF8, 0, password, strlenW( password ), NULL, 0, NULL, NULL );
TRACE("basic authentication\n");
auth_scheme = basic;
auth_data_len = userlen + 1 + passlen;
if (!(auth_data = heap_alloc( auth_data_len ))) return FALSE;
WideCharToMultiByte( CP_UTF8, 0, username, -1, auth_data, userlen, NULL, NULL );
auth_data[userlen] = ':';
WideCharToMultiByte( CP_UTF8, 0, password, -1, auth_data + userlen + 1, passlen, NULL, NULL );
break;
}
case WINHTTP_AUTH_SCHEME_NTLM:
case WINHTTP_AUTH_SCHEME_PASSPORT:
case WINHTTP_AUTH_SCHEME_DIGEST:
case WINHTTP_AUTH_SCHEME_NEGOTIATE:
FIXME("unimplemented authentication scheme %x\n", scheme);
return FALSE;
default:
WARN("unknown authentication scheme %x\n", scheme);
return FALSE;
}
len = strlenW( auth_scheme ) + ((auth_data_len + 2) * 4) / 3;
if (!(auth_header = heap_alloc( (len + 1) * sizeof(WCHAR) )))
{
heap_free( auth_data );
return FALSE;
}
strcpyW( auth_header, auth_scheme );
encode_base64( auth_data, auth_data_len, auth_header + strlenW( auth_header ) );
ret = process_header( request, auth_target, auth_header, WINHTTP_ADDREQ_FLAG_ADD | WINHTTP_ADDREQ_FLAG_REPLACE, TRUE );
heap_free( auth_data );
heap_free( auth_header );
return ret;
}
/***********************************************************************
* WinHttpSetCredentials (winhttp.@)
*/
BOOL WINAPI WinHttpSetCredentials( HINTERNET hrequest, DWORD target, DWORD scheme, LPCWSTR username,
LPCWSTR password, LPVOID params )
{
BOOL ret;
request_t *request;
TRACE("%p, %x, 0x%08x, %s, %p, %p\n", hrequest, target, scheme, debugstr_w(username), password, params);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
ret = set_credentials( request, target, scheme, username, password );
release_object( &request->hdr );
return ret;
}
static BOOL handle_authorization( request_t *request, DWORD status )
{
DWORD schemes, level, target;
const WCHAR *username, *password;
switch (status)
{
case 401:
target = WINHTTP_AUTH_TARGET_SERVER;
level = WINHTTP_QUERY_WWW_AUTHENTICATE;
break;
case 407:
target = WINHTTP_AUTH_TARGET_PROXY;
level = WINHTTP_QUERY_PROXY_AUTHENTICATE;
break;
default:
WARN("unhandled status %u\n", status);
return FALSE;
}
if (!query_auth_schemes( request, level, &schemes, NULL )) return FALSE;
if (target == WINHTTP_AUTH_TARGET_SERVER)
{
username = request->connect->username;
password = request->connect->password;
}
else
{
username = request->connect->session->proxy_username;
password = request->connect->session->proxy_password;
}
if (schemes & WINHTTP_AUTH_SCHEME_BASIC)
return set_credentials( request, target, WINHTTP_AUTH_SCHEME_BASIC, username, password );
FIXME("unsupported authentication scheme\n");
return FALSE;
}
static void clear_response_headers( request_t *request )
{
unsigned int i;
for (i = 0; i < request->num_headers; i++)
{
if (!request->headers[i].field) continue;
if (!request->headers[i].value) continue;
if (request->headers[i].is_request) continue;
delete_header( request, i );
i--;
}
}
#define MAX_REPLY_LEN 1460
#define INITIAL_HEADER_BUFFER_LEN 512
static BOOL read_reply( request_t *request )
{
static const WCHAR crlf[] = {'\r','\n',0};
char buffer[MAX_REPLY_LEN];
DWORD buflen, len, offset, received_len, crlf_len = 2; /* strlenW(crlf) */
char *status_code, *status_text;
WCHAR *versionW, *status_textW, *raw_headers;
WCHAR status_codeW[4]; /* sizeof("nnn") */
if (!netconn_connected( &request->netconn )) return FALSE;
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_RECEIVING_RESPONSE, NULL, 0 );
received_len = 0;
do
{
buflen = MAX_REPLY_LEN;
if (!netconn_get_next_line( &request->netconn, buffer, &buflen )) return FALSE;
received_len += buflen;
/* first line should look like 'HTTP/1.x nnn OK' where nnn is the status code */
if (!(status_code = strchr( buffer, ' ' ))) return FALSE;
status_code++;
if (!(status_text = strchr( status_code, ' ' ))) return FALSE;
if ((len = status_text - status_code) != sizeof("nnn") - 1) return FALSE;
status_text++;
TRACE("version [%s] status code [%s] status text [%s]\n",
debugstr_an(buffer, status_code - buffer - 1),
debugstr_an(status_code, len),
debugstr_a(status_text));
} while (!memcmp( status_code, "100", len )); /* ignore "100 Continue" responses */
/* we rely on the fact that the protocol is ascii */
MultiByteToWideChar( CP_ACP, 0, status_code, len, status_codeW, len );
status_codeW[len] = 0;
if (!(process_header( request, attr_status, status_codeW, WINHTTP_ADDREQ_FLAG_REPLACE, FALSE ))) return FALSE;
len = status_code - buffer;
if (!(versionW = heap_alloc( len * sizeof(WCHAR) ))) return FALSE;
MultiByteToWideChar( CP_ACP, 0, buffer, len - 1, versionW, len -1 );
versionW[len - 1] = 0;
heap_free( request->version );
request->version = versionW;
len = buflen - (status_text - buffer);
if (!(status_textW = heap_alloc( len * sizeof(WCHAR) ))) return FALSE;
MultiByteToWideChar( CP_ACP, 0, status_text, len, status_textW, len );
heap_free( request->status_text );
request->status_text = status_textW;
len = max( buflen + crlf_len, INITIAL_HEADER_BUFFER_LEN );
if (!(raw_headers = heap_alloc( len * sizeof(WCHAR) ))) return FALSE;
MultiByteToWideChar( CP_ACP, 0, buffer, buflen, raw_headers, buflen );
memcpy( raw_headers + buflen - 1, crlf, sizeof(crlf) );
heap_free( request->raw_headers );
request->raw_headers = raw_headers;
offset = buflen + crlf_len - 1;
for (;;)
{
header_t *header;
buflen = MAX_REPLY_LEN;
if (!netconn_get_next_line( &request->netconn, buffer, &buflen )) goto end;
received_len += buflen;
if (!*buffer) break;
while (len - offset < buflen + crlf_len)
{
WCHAR *tmp;
len *= 2;
if (!(tmp = heap_realloc( raw_headers, len * sizeof(WCHAR) ))) return FALSE;
request->raw_headers = raw_headers = tmp;
}
MultiByteToWideChar( CP_ACP, 0, buffer, buflen, raw_headers + offset, buflen );
if (!(header = parse_header( raw_headers + offset ))) break;
if (!(process_header( request, header->field, header->value, WINHTTP_ADDREQ_FLAG_ADD, FALSE )))
{
free_header( header );
break;
}
free_header( header );
memcpy( raw_headers + offset + buflen - 1, crlf, sizeof(crlf) );
offset += buflen + crlf_len - 1;
}
TRACE("raw headers: %s\n", debugstr_w(raw_headers));
end:
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_RESPONSE_RECEIVED, &received_len, sizeof(DWORD) );
return TRUE;
}
static BOOL handle_redirect( request_t *request )
{
BOOL ret = FALSE;
DWORD size, len;
URL_COMPONENTS uc;
connect_t *connect = request->connect;
INTERNET_PORT port;
WCHAR *hostname = NULL, *location = NULL;
int index;
size = 0;
query_headers( request, WINHTTP_QUERY_LOCATION, NULL, NULL, &size, NULL );
if (!(location = heap_alloc( size ))) return FALSE;
if (!query_headers( request, WINHTTP_QUERY_LOCATION, NULL, location, &size, NULL )) goto end;
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REDIRECT, location, size / sizeof(WCHAR) + 1 );
memset( &uc, 0, sizeof(uc) );
uc.dwStructSize = sizeof(uc);
uc.dwSchemeLength = uc.dwHostNameLength = uc.dwUrlPathLength = uc.dwExtraInfoLength = ~0u;
if (!WinHttpCrackUrl( location, size / sizeof(WCHAR), 0, &uc )) /* assume relative redirect */
{
WCHAR *path, *p;
len = strlenW( location ) + 1;
if (location[0] != '/') len++;
if (!(p = path = heap_alloc( len * sizeof(WCHAR) ))) goto end;
if (location[0] != '/') *p++ = '/';
strcpyW( p, location );
heap_free( request->path );
request->path = path;
}
else
{
if (uc.nScheme == INTERNET_SCHEME_HTTP && request->hdr.flags & WINHTTP_FLAG_SECURE)
{
TRACE("redirect from secure page to non-secure page\n");
request->hdr.flags &= ~WINHTTP_FLAG_SECURE;
}
else if (uc.nScheme == INTERNET_SCHEME_HTTPS && !(request->hdr.flags & WINHTTP_FLAG_SECURE))
{
TRACE("redirect from non-secure page to secure page\n");
request->hdr.flags |= WINHTTP_FLAG_SECURE;
}
len = uc.dwHostNameLength;
if (!(hostname = heap_alloc( (len + 1) * sizeof(WCHAR) ))) goto end;
memcpy( hostname, uc.lpszHostName, len * sizeof(WCHAR) );
hostname[len] = 0;
port = uc.nPort ? uc.nPort : (uc.nScheme == INTERNET_SCHEME_HTTPS ? 443 : 80);
if (strcmpiW( connect->hostname, hostname ) || connect->serverport != port)
{
heap_free( connect->hostname );
connect->hostname = hostname;
connect->hostport = port;
if (!(ret = set_server_for_hostname( connect, hostname, port ))) goto end;
netconn_close( &request->netconn );
if (!(ret = netconn_init( &request->netconn, request->hdr.flags & WINHTTP_FLAG_SECURE ))) goto end;
}
if (!(ret = add_host_header( request, WINHTTP_ADDREQ_FLAG_REPLACE ))) goto end;
if (!(ret = open_connection( request ))) goto end;
heap_free( request->path );
request->path = NULL;
if (uc.dwUrlPathLength)
{
len = uc.dwUrlPathLength + uc.dwExtraInfoLength;
if (!(request->path = heap_alloc( (len + 1) * sizeof(WCHAR) ))) goto end;
strcpyW( request->path, uc.lpszUrlPath );
}
else request->path = strdupW( slashW );
}
/* remove content-type/length headers */
if ((index = get_header_index( request, attr_content_type, 0, TRUE )) >= 0) delete_header( request, index );
if ((index = get_header_index( request, attr_content_length, 0, TRUE )) >= 0 ) delete_header( request, index );
/* redirects are always GET requests */
heap_free( request->verb );
request->verb = strdupW( getW );
ret = TRUE;
end:
if (!ret) heap_free( hostname );
heap_free( location );
return ret;
}
static BOOL receive_data( request_t *request, void *buffer, DWORD size, DWORD *read, BOOL async )
{
DWORD to_read;
int bytes_read;
to_read = min( size, request->content_length - request->content_read );
if (!netconn_recv( &request->netconn, buffer, to_read, async ? 0 : MSG_WAITALL, &bytes_read ))
{
if (bytes_read != to_read)
{
ERR("not all data received %d/%d\n", bytes_read, to_read);
}
/* always return success, even if the network layer returns an error */
*read = 0;
return TRUE;
}
request->content_read += bytes_read;
*read = bytes_read;
return TRUE;
}
static DWORD get_chunk_size( const char *buffer )
{
const char *p;
DWORD size = 0;
for (p = buffer; *p; p++)
{
if (*p >= '0' && *p <= '9') size = size * 16 + *p - '0';
else if (*p >= 'a' && *p <= 'f') size = size * 16 + *p - 'a' + 10;
else if (*p >= 'A' && *p <= 'F') size = size * 16 + *p - 'A' + 10;
else if (*p == ';') break;
}
return size;
}
static BOOL receive_data_chunked( request_t *request, void *buffer, DWORD size, DWORD *read, BOOL async )
{
char reply[MAX_REPLY_LEN], *p = buffer;
DWORD buflen, to_read, to_write = size;
int bytes_read;
*read = 0;
for (;;)
{
if (*read == size) break;
if (request->content_length == ~0u) /* new chunk */
{
buflen = sizeof(reply);
if (!netconn_get_next_line( &request->netconn, reply, &buflen )) break;
if (!(request->content_length = get_chunk_size( reply )))
{
/* zero sized chunk marks end of transfer; read any trailing headers and return */
read_reply( request );
break;
}
}
to_read = min( to_write, request->content_length - request->content_read );
if (!netconn_recv( &request->netconn, p, to_read, async ? 0 : MSG_WAITALL, &bytes_read ))
{
if (bytes_read != to_read)
{
ERR("Not all data received %d/%d\n", bytes_read, to_read);
}
/* always return success, even if the network layer returns an error */
*read = 0;
break;
}
if (!bytes_read) break;
request->content_read += bytes_read;
to_write -= bytes_read;
*read += bytes_read;
p += bytes_read;
if (request->content_read == request->content_length) /* chunk complete */
{
request->content_read = 0;
request->content_length = ~0u;
buflen = sizeof(reply);
if (!netconn_get_next_line( &request->netconn, reply, &buflen ))
{
ERR("Malformed chunk\n");
*read = 0;
break;
}
}
}
return TRUE;
}
static void finished_reading( request_t *request )
{
static const WCHAR closeW[] = {'c','l','o','s','e',0};
BOOL close = FALSE;
WCHAR connection[20];
DWORD size = sizeof(connection);
if (request->hdr.disable_flags & WINHTTP_DISABLE_KEEP_ALIVE) close = TRUE;
else if (query_headers( request, WINHTTP_QUERY_CONNECTION, NULL, connection, &size, NULL ) ||
query_headers( request, WINHTTP_QUERY_PROXY_CONNECTION, NULL, connection, &size, NULL ))
{
if (!strcmpiW( connection, closeW )) close = TRUE;
}
else if (!strcmpW( request->version, http1_0 )) close = TRUE;
if (close) close_connection( request );
request->content_length = ~0u;
request->content_read = 0;
}
static BOOL read_data( request_t *request, void *buffer, DWORD to_read, DWORD *read, BOOL async )
{
static const WCHAR chunked[] = {'c','h','u','n','k','e','d',0};
BOOL ret;
WCHAR encoding[20];
DWORD num_bytes, buflen = sizeof(encoding);
if (query_headers( request, WINHTTP_QUERY_TRANSFER_ENCODING, NULL, encoding, &buflen, NULL ) &&
!strcmpiW( encoding, chunked ))
{
ret = receive_data_chunked( request, buffer, to_read, &num_bytes, async );
}
else
ret = receive_data( request, buffer, to_read, &num_bytes, async );
if (async)
{
if (ret) send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_READ_COMPLETE, buffer, num_bytes );
else
{
WINHTTP_ASYNC_RESULT result;
result.dwResult = API_READ_DATA;
result.dwError = get_last_error();
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, &result, sizeof(result) );
}
}
if (ret)
{
if (read) *read = num_bytes;
if (!num_bytes) finished_reading( request );
}
return ret;
}
/* read any content returned by the server so that the connection can be reused */
static void drain_content( request_t *request )
{
DWORD bytes_read;
char buffer[2048];
if (!request->content_length) return;
for (;;)
{
if (!read_data( request, buffer, sizeof(buffer), &bytes_read, FALSE ) || !bytes_read) return;
}
}
static void record_cookies( request_t *request )
{
unsigned int i;
for (i = 0; i < request->num_headers; i++)
{
header_t *set_cookie = &request->headers[i];
if (!strcmpiW( set_cookie->field, attr_set_cookie ) && !set_cookie->is_request)
{
set_cookies( request, set_cookie->value );
}
}
}
static BOOL receive_response( request_t *request, BOOL async )
{
BOOL ret;
DWORD size, query, status;
for (;;)
{
if (!(ret = read_reply( request ))) break;
size = sizeof(DWORD);
query = WINHTTP_QUERY_STATUS_CODE | WINHTTP_QUERY_FLAG_NUMBER;
if (!(ret = query_headers( request, query, NULL, &status, &size, NULL ))) break;
size = sizeof(DWORD);
query = WINHTTP_QUERY_CONTENT_LENGTH | WINHTTP_QUERY_FLAG_NUMBER;
if (!query_headers( request, query, NULL, &request->content_length, &size, NULL ))
request->content_length = ~0u;
if (!(request->hdr.disable_flags & WINHTTP_DISABLE_COOKIES)) record_cookies( request );
if (status == 301 || status == 302)
{
if (request->hdr.disable_flags & WINHTTP_DISABLE_REDIRECTS) break;
drain_content( request );
if (!(ret = handle_redirect( request ))) break;
clear_response_headers( request );
ret = send_request( request, NULL, 0, NULL, 0, 0, 0, FALSE ); /* recurse synchronously */
continue;
}
else if (status == 401 || status == 407)
{
if (request->hdr.disable_flags & WINHTTP_DISABLE_AUTHENTICATION) break;
drain_content( request );
if (!handle_authorization( request, status ))
{
ret = TRUE;
break;
}
clear_response_headers( request );
ret = send_request( request, NULL, 0, NULL, 0, 0, 0, FALSE );
continue;
}
break;
}
if (async)
{
if (ret) send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_HEADERS_AVAILABLE, NULL, 0 );
else
{
WINHTTP_ASYNC_RESULT result;
result.dwResult = API_RECEIVE_RESPONSE;
result.dwError = get_last_error();
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, &result, sizeof(result) );
}
}
return ret;
}
static void task_receive_response( task_header_t *task )
{
receive_response_t *r = (receive_response_t *)task;
receive_response( r->hdr.request, TRUE );
}
/***********************************************************************
* WinHttpReceiveResponse (winhttp.@)
*/
BOOL WINAPI WinHttpReceiveResponse( HINTERNET hrequest, LPVOID reserved )
{
BOOL ret;
request_t *request;
TRACE("%p, %p\n", hrequest, reserved);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
if (request->connect->hdr.flags & WINHTTP_FLAG_ASYNC)
{
receive_response_t *r;
if (!(r = heap_alloc( sizeof(receive_response_t) ))) return FALSE;
r->hdr.request = request;
r->hdr.proc = task_receive_response;
addref_object( &request->hdr );
ret = queue_task( (task_header_t *)r );
}
else
ret = receive_response( request, FALSE );
release_object( &request->hdr );
return ret;
}
static BOOL query_data( request_t *request, LPDWORD available, BOOL async )
{
BOOL ret;
DWORD num_bytes;
if ((ret = netconn_query_data_available( &request->netconn, &num_bytes )))
{
if (request->content_read < request->content_length)
{
if (!num_bytes)
{
char buffer[4096];
size_t to_read = min( sizeof(buffer), request->content_length - request->content_read );
ret = netconn_recv( &request->netconn, buffer, to_read, MSG_PEEK, (int *)&num_bytes );
if (ret && !num_bytes) WARN("expected more data to be available\n");
}
}
else if (num_bytes)
{
WARN("extra data available %u\n", num_bytes);
ret = FALSE;
}
}
TRACE("%u bytes available\n", num_bytes);
if (async)
{
if (ret) send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_DATA_AVAILABLE, &num_bytes, sizeof(DWORD) );
else
{
WINHTTP_ASYNC_RESULT result;
result.dwResult = API_QUERY_DATA_AVAILABLE;
result.dwError = get_last_error();
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, &result, sizeof(result) );
}
}
if (ret && available) *available = num_bytes;
return ret;
}
static void task_query_data( task_header_t *task )
{
query_data_t *q = (query_data_t *)task;
query_data( q->hdr.request, q->available, TRUE );
}
/***********************************************************************
* WinHttpQueryDataAvailable (winhttp.@)
*/
BOOL WINAPI WinHttpQueryDataAvailable( HINTERNET hrequest, LPDWORD available )
{
BOOL ret;
request_t *request;
TRACE("%p, %p\n", hrequest, available);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
if (request->connect->hdr.flags & WINHTTP_FLAG_ASYNC)
{
query_data_t *q;
if (!(q = heap_alloc( sizeof(query_data_t) ))) return FALSE;
q->hdr.request = request;
q->hdr.proc = task_query_data;
q->available = available;
addref_object( &request->hdr );
ret = queue_task( (task_header_t *)q );
}
else
ret = query_data( request, available, FALSE );
release_object( &request->hdr );
return ret;
}
static void task_read_data( task_header_t *task )
{
read_data_t *r = (read_data_t *)task;
read_data( r->hdr.request, r->buffer, r->to_read, r->read, TRUE );
}
/***********************************************************************
* WinHttpReadData (winhttp.@)
*/
BOOL WINAPI WinHttpReadData( HINTERNET hrequest, LPVOID buffer, DWORD to_read, LPDWORD read )
{
BOOL ret;
request_t *request;
TRACE("%p, %p, %d, %p\n", hrequest, buffer, to_read, read);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
if (request->connect->hdr.flags & WINHTTP_FLAG_ASYNC)
{
read_data_t *r;
if (!(r = heap_alloc( sizeof(read_data_t) ))) return FALSE;
r->hdr.request = request;
r->hdr.proc = task_read_data;
r->buffer = buffer;
r->to_read = to_read;
r->read = read;
addref_object( &request->hdr );
ret = queue_task( (task_header_t *)r );
}
else
ret = read_data( request, buffer, to_read, read, FALSE );
release_object( &request->hdr );
return ret;
}
static BOOL write_data( request_t *request, LPCVOID buffer, DWORD to_write, LPDWORD written, BOOL async )
{
BOOL ret;
int num_bytes;
ret = netconn_send( &request->netconn, buffer, to_write, 0, &num_bytes );
if (async)
{
if (ret) send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_WRITE_COMPLETE, &num_bytes, sizeof(DWORD) );
else
{
WINHTTP_ASYNC_RESULT result;
result.dwResult = API_WRITE_DATA;
result.dwError = get_last_error();
send_callback( &request->hdr, WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, &result, sizeof(result) );
}
}
if (ret && written) *written = num_bytes;
return ret;
}
static void task_write_data( task_header_t *task )
{
write_data_t *w = (write_data_t *)task;
write_data( w->hdr.request, w->buffer, w->to_write, w->written, TRUE );
}
/***********************************************************************
* WinHttpWriteData (winhttp.@)
*/
BOOL WINAPI WinHttpWriteData( HINTERNET hrequest, LPCVOID buffer, DWORD to_write, LPDWORD written )
{
BOOL ret;
request_t *request;
TRACE("%p, %p, %d, %p\n", hrequest, buffer, to_write, written);
if (!(request = (request_t *)grab_object( hrequest )))
{
set_last_error( ERROR_INVALID_HANDLE );
return FALSE;
}
if (request->hdr.type != WINHTTP_HANDLE_TYPE_REQUEST)
{
release_object( &request->hdr );
set_last_error( ERROR_WINHTTP_INCORRECT_HANDLE_TYPE );
return FALSE;
}
if (request->connect->hdr.flags & WINHTTP_FLAG_ASYNC)
{
write_data_t *w;
if (!(w = heap_alloc( sizeof(write_data_t) ))) return FALSE;
w->hdr.request = request;
w->hdr.proc = task_write_data;
w->buffer = buffer;
w->to_write = to_write;
w->written = written;
addref_object( &request->hdr );
ret = queue_task( (task_header_t *)w );
}
else
ret = write_data( request, buffer, to_write, written, FALSE );
release_object( &request->hdr );
return ret;
}