2 * Copyright 2008 Hans Leidekker for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/debug.h"
28 #include "winhttp_private.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(winhttp);
33 #define SCHEME_HTTPS 4
35 BOOL WINAPI InternetCrackUrlW( LPCWSTR, DWORD, DWORD, LPURL_COMPONENTSW );
37 /***********************************************************************
38 * WinHttpCrackUrl (winhttp.@)
40 BOOL WINAPI WinHttpCrackUrl( LPCWSTR url, DWORD len, DWORD flags, LPURL_COMPONENTSW components )
44 TRACE("%s, %d, %x, %p\n", debugstr_w(url), len, flags, components);
46 if ((ret = InternetCrackUrlW( url, len, flags, components )))
48 /* fix up an incompatibility between wininet and winhttp */
49 if (components->nScheme == SCHEME_HTTP) components->nScheme = INTERNET_SCHEME_HTTP;
50 else if (components->nScheme == SCHEME_HTTPS) components->nScheme = INTERNET_SCHEME_HTTPS;
53 set_last_error( ERROR_WINHTTP_UNRECOGNIZED_SCHEME );
60 static const WCHAR scheme_http[] = {'h','t','t','p',0};
61 static const WCHAR scheme_https[] = {'h','t','t','p','s',0};
63 static INTERNET_SCHEME get_scheme( const WCHAR *scheme, DWORD len )
65 if (!strncmpW( scheme, scheme_http, len )) return INTERNET_SCHEME_HTTP;
66 if (!strncmpW( scheme, scheme_https, len )) return INTERNET_SCHEME_HTTPS;
70 static const WCHAR *get_scheme_string( INTERNET_SCHEME scheme )
72 if (scheme == INTERNET_SCHEME_HTTP) return scheme_http;
73 if (scheme == INTERNET_SCHEME_HTTPS) return scheme_https;
77 static BOOL uses_default_port( INTERNET_SCHEME scheme, INTERNET_PORT port )
79 if ((scheme == INTERNET_SCHEME_HTTP) && (port == INTERNET_DEFAULT_HTTP_PORT)) return TRUE;
80 if ((scheme == INTERNET_SCHEME_HTTPS) && (port == INTERNET_DEFAULT_HTTPS_PORT)) return TRUE;
84 static BOOL need_escape( WCHAR c )
86 if (isalnumW( c )) return FALSE;
88 if (c <= 31 || c >= 127) return TRUE;
115 static DWORD copy_escape( WCHAR *dst, const WCHAR *src, DWORD len )
117 static const WCHAR hex[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
122 for (i = 0; i < len; i++, p++)
124 if (need_escape( src[i] ))
127 p[1] = hex[(src[i] >> 4) & 0xf];
128 p[2] = hex[src[i] & 0xf];
138 static DWORD comp_length( DWORD len, DWORD flags, WCHAR *comp )
143 ret = len ? len : strlenW( comp );
144 if (!(flags & ICU_ESCAPE)) return ret;
145 for (i = 0; i < len; i++) if (need_escape( comp[i] )) ret += 2;
149 static BOOL calc_length( URL_COMPONENTS *uc, DWORD flags, LPDWORD len )
151 static const WCHAR formatW[] = {'%','d',0};
152 INTERNET_SCHEME scheme;
157 DWORD scheme_len = comp_length( uc->dwSchemeLength, 0, uc->lpszScheme );
159 scheme = get_scheme( uc->lpszScheme, scheme_len );
163 scheme = uc->nScheme;
164 if (!scheme) scheme = INTERNET_SCHEME_HTTP;
165 *len += strlenW( get_scheme_string( scheme ) );
168 if (uc->lpszHostName) *len += 2; /* "//" */
170 if (uc->lpszUserName)
172 *len += comp_length( uc->dwUserNameLength, 0, uc->lpszUserName );
177 if (uc->lpszPassword)
179 set_last_error( ERROR_INVALID_PARAMETER );
183 if (uc->lpszPassword)
186 *len += comp_length( uc->dwPasswordLength, 0, uc->lpszPassword );
188 if (uc->lpszHostName)
190 *len += comp_length( uc->dwHostNameLength, 0, uc->lpszHostName );
192 if (!uses_default_port( scheme, uc->nPort ))
194 WCHAR port[sizeof("65535")];
196 sprintfW( port, formatW, uc->nPort );
197 *len += strlenW( port );
200 if (uc->lpszUrlPath && *uc->lpszUrlPath != '/') *len += 1; /* '/' */
202 if (uc->lpszUrlPath) *len += comp_length( uc->dwUrlPathLength, flags, uc->lpszUrlPath );
203 if (uc->lpszExtraInfo) *len += comp_length( uc->dwExtraInfoLength, flags, uc->lpszExtraInfo );
207 /***********************************************************************
208 * WinHttpCreateUrl (winhttp.@)
210 BOOL WINAPI WinHttpCreateUrl( LPURL_COMPONENTS uc, DWORD flags, LPWSTR url, LPDWORD required )
212 static const WCHAR formatW[] = {'%','d',0};
213 static const WCHAR twoslashW[] = {'/','/'};
216 INTERNET_SCHEME scheme;
218 TRACE("%p, 0x%08x, %p, %p\n", uc, flags, url, required);
220 if (!uc || uc->dwStructSize != sizeof(URL_COMPONENTS) || !required)
222 set_last_error( ERROR_INVALID_PARAMETER );
226 if (!calc_length( uc, flags, &len )) return FALSE;
228 if (!url || *required < len)
231 set_last_error( ERROR_INSUFFICIENT_BUFFER );
239 len = comp_length( uc->dwSchemeLength, 0, uc->lpszScheme );
240 memcpy( url, uc->lpszScheme, len * sizeof(WCHAR) );
243 scheme = get_scheme( uc->lpszScheme, len );
247 const WCHAR *schemeW;
248 scheme = uc->nScheme;
250 if (!scheme) scheme = INTERNET_SCHEME_HTTP;
252 schemeW = get_scheme_string( scheme );
253 len = strlenW( schemeW );
254 memcpy( url, schemeW, len * sizeof(WCHAR) );
258 /* all schemes are followed by at least a colon */
262 if (uc->lpszHostName)
264 memcpy( url, twoslashW, sizeof(twoslashW) );
265 url += sizeof(twoslashW) / sizeof(twoslashW[0]);
267 if (uc->lpszUserName)
269 len = comp_length( uc->dwUserNameLength, 0, uc->lpszUserName );
270 memcpy( url, uc->lpszUserName, len * sizeof(WCHAR) );
273 if (uc->lpszPassword)
278 len = comp_length( uc->dwPasswordLength, 0, uc->lpszPassword );
279 memcpy( url, uc->lpszPassword, len * sizeof(WCHAR) );
285 if (uc->lpszHostName)
287 len = comp_length( uc->dwHostNameLength, 0, uc->lpszHostName );
288 memcpy( url, uc->lpszHostName, len * sizeof(WCHAR) );
291 if (!uses_default_port( scheme, uc->nPort ))
293 WCHAR port[sizeof("65535")];
295 sprintfW( port, formatW, uc->nPort );
299 len = strlenW( port );
300 memcpy( url, port, len * sizeof(WCHAR) );
304 /* add slash between hostname and path if necessary */
305 if (uc->lpszUrlPath && *uc->lpszUrlPath != '/')
313 len = comp_length( uc->dwUrlPathLength, 0, uc->lpszUrlPath );
314 if (flags & ICU_ESCAPE) url += copy_escape( url, uc->lpszUrlPath, len );
317 memcpy( url, uc->lpszUrlPath, len * sizeof(WCHAR) );
321 if (uc->lpszExtraInfo)
323 len = comp_length( uc->dwExtraInfoLength, 0, uc->lpszExtraInfo );
324 if (flags & ICU_ESCAPE) url += copy_escape( url, uc->lpszExtraInfo, len );
327 memcpy( url, uc->lpszExtraInfo, len * sizeof(WCHAR) );