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