dlls/wininet/utility.c

   1 /*
   2  * Wininet - Utility functions
   3  *
   4  * Copyright 1999 Corel Corporation
   5  * Copyright 2002 CodeWeavers Inc.
   6  *
   7  * Ulrich Czekalla
   8  * Aric Stewart
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #if defined(__MINGW32__) || defined (_MSC_VER)
  29 #include <ws2tcpip.h>
  30 #endif
  31
  32 #include <stdarg.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <time.h>
  36
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "wininet.h"
  40 #include "winnls.h"
  41
  42 #include "wine/debug.h"
  43 #include "internet.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(wininet);
  46
  47 #ifndef HAVE_GETADDRINFO
  48
  49 /* critical section to protect non-reentrant gethostbyname() */
  50 static CRITICAL_SECTION cs_gethostbyname;
  51 static CRITICAL_SECTION_DEBUG critsect_debug =
  52 {
  53     0, 0, &cs_gethostbyname,
  54     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  55       0, 0, { (DWORD_PTR)(__FILE__ ": cs_gethostbyname") }
  56 };
  57 static CRITICAL_SECTION cs_gethostbyname = { &critsect_debug, -1, 0, 0, 0, 0 };
  58
  59 #endif
  60
  61 #define TIME_STRING_LEN  30
  62
  63 time_t ConvertTimeString(LPCWSTR asctime)
  64 {
  65     WCHAR tmpChar[TIME_STRING_LEN];
  66     WCHAR *tmpChar2;
  67     struct tm t;
  68     int timelen = strlenW(asctime);
  69
  70     if(!timelen)
  71         return 0;
  72
  73     /* FIXME: the atoiWs below rely on that tmpChar is \0 padded */
  74     memset( tmpChar, 0, sizeof(tmpChar) );
  75     lstrcpynW(tmpChar, asctime, TIME_STRING_LEN);
  76
  77     /* Assert that the string is the expected length */
  78     if (strlenW(asctime) >= TIME_STRING_LEN) FIXME("\n");
  79
  80     /* Convert a time such as 'Mon, 15 Nov 1999 16:09:35 GMT' into a SYSTEMTIME structure
  81      * We assume the time is in this format
  82      * and divide it into easy to swallow chunks
  83      */
  84     tmpChar[3]='\0';
  85     tmpChar[7]='\0';
  86     tmpChar[11]='\0';
  87     tmpChar[16]='\0';
  88     tmpChar[19]='\0';
  89     tmpChar[22]='\0';
  90     tmpChar[25]='\0';
  91
  92     memset( &t, 0, sizeof(t) );
  93     t.tm_year = atoiW(tmpChar+12) - 1900;
  94     t.tm_mday = atoiW(tmpChar+5);
  95     t.tm_hour = atoiW(tmpChar+17);
  96     t.tm_min = atoiW(tmpChar+20);
  97     t.tm_sec = atoiW(tmpChar+23);
  98
  99     /* and month */
 100     tmpChar2 = tmpChar + 8;
 101     switch(tmpChar2[2])
 102     {
 103         case 'n':
 104             if(tmpChar2[1]=='a')
 105                 t.tm_mon = 0;
 106             else
 107                 t.tm_mon = 5;
 108             break;
 109         case 'b':
 110             t.tm_mon = 1;
 111             break;
 112         case 'r':
 113             if(tmpChar2[1]=='a')
 114                 t.tm_mon = 2;
 115             else
 116                 t.tm_mon = 3;
 117             break;
 118         case 'y':
 119             t.tm_mon = 4;
 120             break;
 121         case 'l':
 122             t.tm_mon = 6;
 123             break;
 124         case 'g':
 125             t.tm_mon = 7;
 126             break;
 127         case 'p':
 128             t.tm_mon = 8;
 129             break;
 130         case 't':
 131             t.tm_mon = 9;
 132             break;
 133         case 'v':
 134             t.tm_mon = 10;
 135             break;
 136         case 'c':
 137             t.tm_mon = 11;
 138             break;
 139         default:
 140             FIXME("\n");
 141     }
 142
 143     return mktime(&t);
 144 }
 145
 146
 147 BOOL GetAddress(LPCWSTR lpszServerName, INTERNET_PORT nServerPort,
 148         struct sockaddr_in *psa)
 149 {
 150     WCHAR *found;
 151     char *name;
 152     int len, sz;
 153 #ifdef HAVE_GETADDRINFO
 154     struct addrinfo *res, hints;
 155     int ret;
 156 #else
 157     struct hostent *phe;
 158 #endif
 159
 160     TRACE("%s\n", debugstr_w(lpszServerName));
 161
 162     /* Validate server name first
 163      * Check if there is sth. like
 164      * pinger.macromedia.com:80
 165      * if yes, eliminate the :80....
 166      */
 167     found = strchrW(lpszServerName, ':');
 168     if (found)
 169         len = found - lpszServerName;
 170     else
 171         len = strlenW(lpszServerName);
 172
 173     sz = WideCharToMultiByte( CP_UNIXCP, 0, lpszServerName, len, NULL, 0, NULL, NULL );
 174     if (!(name = HeapAlloc( GetProcessHeap(), 0, sz + 1 ))) return FALSE;
 175     WideCharToMultiByte( CP_UNIXCP, 0, lpszServerName, len, name, sz, NULL, NULL );
 176     name[sz] = 0;
 177
 178 #ifdef HAVE_GETADDRINFO
 179     memset( &hints, 0, sizeof(struct addrinfo) );
 180     hints.ai_family = AF_INET;
 181
 182     ret = getaddrinfo( name, NULL, &hints, &res );
 183     HeapFree( GetProcessHeap(), 0, name );
 184     if (ret != 0)
 185     {
 186         TRACE("failed to get address of %s (%s)\n", debugstr_w(lpszServerName), gai_strerror(ret));
 187         return FALSE;
 188     }
 189     memset( psa, 0, sizeof(struct sockaddr_in) );
 190     memcpy( &psa->sin_addr, &((struct sockaddr_in *)res->ai_addr)->sin_addr, sizeof(struct in_addr) );
 191     psa->sin_family = res->ai_family;
 192     psa->sin_port = htons(nServerPort);
 193
 194     freeaddrinfo( res );
 195 #else
 196     EnterCriticalSection( &cs_gethostbyname );
 197     phe = gethostbyname(name);
 198     HeapFree( GetProcessHeap(), 0, name );
 199
 200     if (NULL == phe)
 201     {
 202         TRACE("failed to get address of %s (%d)\n", debugstr_w(lpszServerName), h_errno);
 203         LeaveCriticalSection( &cs_gethostbyname );
 204         return FALSE;
 205     }
 206     memset(psa,0,sizeof(struct sockaddr_in));
 207     memcpy((char *)&psa->sin_addr, phe->h_addr, phe->h_length);
 208     psa->sin_family = phe->h_addrtype;
 209     psa->sin_port = htons(nServerPort);
 210
 211     LeaveCriticalSection( &cs_gethostbyname );
 212 #endif
 213     return TRUE;
 214 }
 215
 216 /*
 217  * Helper function for sending async Callbacks
 218  */
 219
 220 static const char *get_callback_name(DWORD dwInternetStatus) {
 221     static const wininet_flag_info internet_status[] = {
 222 #define FE(x) { x, #x }
 223         FE(INTERNET_STATUS_RESOLVING_NAME),
 224         FE(INTERNET_STATUS_NAME_RESOLVED),
 225         FE(INTERNET_STATUS_CONNECTING_TO_SERVER),
 226         FE(INTERNET_STATUS_CONNECTED_TO_SERVER),
 227         FE(INTERNET_STATUS_SENDING_REQUEST),
 228         FE(INTERNET_STATUS_REQUEST_SENT),
 229         FE(INTERNET_STATUS_RECEIVING_RESPONSE),
 230         FE(INTERNET_STATUS_RESPONSE_RECEIVED),
 231         FE(INTERNET_STATUS_CTL_RESPONSE_RECEIVED),
 232         FE(INTERNET_STATUS_PREFETCH),
 233         FE(INTERNET_STATUS_CLOSING_CONNECTION),
 234         FE(INTERNET_STATUS_CONNECTION_CLOSED),
 235         FE(INTERNET_STATUS_HANDLE_CREATED),
 236         FE(INTERNET_STATUS_HANDLE_CLOSING),
 237         FE(INTERNET_STATUS_REQUEST_COMPLETE),
 238         FE(INTERNET_STATUS_REDIRECT),
 239         FE(INTERNET_STATUS_INTERMEDIATE_RESPONSE),
 240         FE(INTERNET_STATUS_USER_INPUT_REQUIRED),
 241         FE(INTERNET_STATUS_STATE_CHANGE),
 242         FE(INTERNET_STATUS_COOKIE_SENT),
 243         FE(INTERNET_STATUS_COOKIE_RECEIVED),
 244         FE(INTERNET_STATUS_PRIVACY_IMPACTED),
 245         FE(INTERNET_STATUS_P3P_HEADER),
 246         FE(INTERNET_STATUS_P3P_POLICYREF),
 247         FE(INTERNET_STATUS_COOKIE_HISTORY)
 248 #undef FE
 249     };
 250     DWORD i;
 251
 252     for (i = 0; i < (sizeof(internet_status) / sizeof(internet_status[0])); i++) {
 253         if (internet_status[i].val == dwInternetStatus) return internet_status[i].name;
 254     }
 255     return "Unknown";
 256 }
 257
 258 VOID INTERNET_SendCallback(LPWININETHANDLEHEADER hdr, DWORD_PTR dwContext,
 259                            DWORD dwInternetStatus, LPVOID lpvStatusInfo,
 260                            DWORD dwStatusInfoLength)
 261 {
 262     LPVOID lpvNewInfo = NULL;
 263
 264     if( !hdr->lpfnStatusCB )
 265         return;
 266
 267     /* the IE5 version of wininet does not
 268        send callbacks if dwContext is zero */
 269     if( !dwContext )
 270         return;
 271
 272     lpvNewInfo = lpvStatusInfo;
 273     if(hdr->dwInternalFlags & INET_CALLBACKW) {
 274         switch(dwInternetStatus) {
 275         case INTERNET_STATUS_NAME_RESOLVED:
 276         case INTERNET_STATUS_CONNECTING_TO_SERVER:
 277         case INTERNET_STATUS_CONNECTED_TO_SERVER:
 278             lpvNewInfo = WININET_strdup_AtoW(lpvStatusInfo);
 279             break;
 280         case INTERNET_STATUS_RESOLVING_NAME:
 281         case INTERNET_STATUS_REDIRECT:
 282             lpvNewInfo = WININET_strdupW(lpvStatusInfo);
 283             break;
 284         }
 285     }else {
 286         switch(dwInternetStatus)
 287         {
 288         case INTERNET_STATUS_NAME_RESOLVED:
 289         case INTERNET_STATUS_CONNECTING_TO_SERVER:
 290         case INTERNET_STATUS_CONNECTED_TO_SERVER:
 291             lpvNewInfo = HeapAlloc(GetProcessHeap(), 0, strlen(lpvStatusInfo) + 1);
 292             if (lpvNewInfo) strcpy(lpvNewInfo, lpvStatusInfo);
 293             break;
 294         case INTERNET_STATUS_RESOLVING_NAME:
 295         case INTERNET_STATUS_REDIRECT:
 296             lpvNewInfo = WININET_strdup_WtoA(lpvStatusInfo);
 297             break;
 298         }
 299     }
 300
 301     TRACE(" callback(%p) (%p (%p), %08lx, %d (%s), %p, %d)\n",
 302           hdr->lpfnStatusCB, hdr->hInternet, hdr, dwContext, dwInternetStatus, get_callback_name(dwInternetStatus),
 303           lpvNewInfo, dwStatusInfoLength);
 304
 305     hdr->lpfnStatusCB(hdr->hInternet, dwContext, dwInternetStatus,
 306                       lpvNewInfo, dwStatusInfoLength);
 307
 308     TRACE(" end callback().\n");
 309
 310     if(lpvNewInfo != lpvStatusInfo)
 311         HeapFree(GetProcessHeap(), 0, lpvNewInfo);
 312 }
 313
 314 static void SendAsyncCallbackProc(WORKREQUEST *workRequest)
 315 {
 316     struct WORKREQ_SENDCALLBACK const *req = &workRequest->u.SendCallback;
 317
 318     TRACE("%p\n", workRequest->hdr);
 319
 320     INTERNET_SendCallback(workRequest->hdr,
 321                           req->dwContext, req->dwInternetStatus, req->lpvStatusInfo,
 322                           req->dwStatusInfoLength);
 323
 324     /* And frees the copy of the status info */
 325     HeapFree(GetProcessHeap(), 0, req->lpvStatusInfo);
 326 }
 327
 328 VOID SendAsyncCallback(LPWININETHANDLEHEADER hdr, DWORD_PTR dwContext,
 329                        DWORD dwInternetStatus, LPVOID lpvStatusInfo,
 330                        DWORD dwStatusInfoLength)
 331 {
 332     TRACE("(%p, %08lx, %d (%s), %p, %d): %sasync call with callback %p\n",
 333           hdr, dwContext, dwInternetStatus, get_callback_name(dwInternetStatus),
 334           lpvStatusInfo, dwStatusInfoLength,
 335           hdr->dwFlags & INTERNET_FLAG_ASYNC ? "" : "non ",
 336           hdr->lpfnStatusCB);
 337
 338     if (!(hdr->lpfnStatusCB))
 339         return;
 340
 341     if (hdr->dwFlags & INTERNET_FLAG_ASYNC)
 342     {
 343         WORKREQUEST workRequest;
 344         struct WORKREQ_SENDCALLBACK *req;
 345         void *lpvStatusInfo_copy = lpvStatusInfo;
 346
 347         if (lpvStatusInfo)
 348         {
 349             lpvStatusInfo_copy = HeapAlloc(GetProcessHeap(), 0, dwStatusInfoLength);
 350             memcpy(lpvStatusInfo_copy, lpvStatusInfo, dwStatusInfoLength);
 351         }
 352
 353         workRequest.asyncproc = SendAsyncCallbackProc;
 354         workRequest.hdr = WININET_AddRef( hdr );
 355         req = &workRequest.u.SendCallback;
 356         req->dwContext = dwContext;
 357         req->dwInternetStatus = dwInternetStatus;
 358         req->lpvStatusInfo = lpvStatusInfo_copy;
 359         req->dwStatusInfoLength = dwStatusInfoLength;
 360
 361         INTERNET_AsyncCall(&workRequest);
 362     }
 363     else
 364         INTERNET_SendCallback(hdr, dwContext, dwInternetStatus,
 365                               lpvStatusInfo, dwStatusInfoLength);
 366 }