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