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 "ws2tcpip.h"
  26
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <time.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "wininet.h"
  35 #include "winnls.h"
  36
  37 #include "wine/debug.h"
  38 #include "internet.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(wininet);
  41
  42 #define TIME_STRING_LEN  30
  43
  44 time_t ConvertTimeString(LPCWSTR asctime)
  45 {
  46     WCHAR tmpChar[TIME_STRING_LEN];
  47     WCHAR *tmpChar2;
  48     struct tm t;
  49     int timelen = strlenW(asctime);
  50
  51     if(!timelen)
  52         return 0;
  53
  54     /* FIXME: the atoiWs below rely on that tmpChar is \0 padded */
  55     memset( tmpChar, 0, sizeof(tmpChar) );
  56     lstrcpynW(tmpChar, asctime, TIME_STRING_LEN);
  57
  58     /* Assert that the string is the expected length */
  59     if (strlenW(asctime) >= TIME_STRING_LEN) FIXME("\n");
  60
  61     /* Convert a time such as 'Mon, 15 Nov 1999 16:09:35 GMT' into a SYSTEMTIME structure
  62      * We assume the time is in this format
  63      * and divide it into easy to swallow chunks
  64      */
  65     tmpChar[3]='\0';
  66     tmpChar[7]='\0';
  67     tmpChar[11]='\0';
  68     tmpChar[16]='\0';
  69     tmpChar[19]='\0';
  70     tmpChar[22]='\0';
  71     tmpChar[25]='\0';
  72
  73     memset( &t, 0, sizeof(t) );
  74     t.tm_year = atoiW(tmpChar+12) - 1900;
  75     t.tm_mday = atoiW(tmpChar+5);
  76     t.tm_hour = atoiW(tmpChar+17);
  77     t.tm_min = atoiW(tmpChar+20);
  78     t.tm_sec = atoiW(tmpChar+23);
  79
  80     /* and month */
  81     tmpChar2 = tmpChar + 8;
  82     switch(tmpChar2[2])
  83     {
  84         case 'n':
  85             if(tmpChar2[1]=='a')
  86                 t.tm_mon = 0;
  87             else
  88                 t.tm_mon = 5;
  89             break;
  90         case 'b':
  91             t.tm_mon = 1;
  92             break;
  93         case 'r':
  94             if(tmpChar2[1]=='a')
  95                 t.tm_mon = 2;
  96             else
  97                 t.tm_mon = 3;
  98             break;
  99         case 'y':
 100             t.tm_mon = 4;
 101             break;
 102         case 'l':
 103             t.tm_mon = 6;
 104             break;
 105         case 'g':
 106             t.tm_mon = 7;
 107             break;
 108         case 'p':
 109             t.tm_mon = 8;
 110             break;
 111         case 't':
 112             t.tm_mon = 9;
 113             break;
 114         case 'v':
 115             t.tm_mon = 10;
 116             break;
 117         case 'c':
 118             t.tm_mon = 11;
 119             break;
 120         default:
 121             FIXME("\n");
 122     }
 123
 124     return mktime(&t);
 125 }
 126
 127
 128 BOOL GetAddress(const WCHAR *name, INTERNET_PORT port, struct sockaddr *psa, int *sa_len, char *addr_str)
 129 {
 130     ADDRINFOW *res, hints;
 131     void *addr = NULL;
 132     int ret;
 133
 134     TRACE("%s\n", debugstr_w(name));
 135
 136     memset( &hints, 0, sizeof(hints) );
 137     /* Prefer IPv4 to IPv6 addresses, since some servers do not listen on
 138      * their IPv6 addresses even though they have IPv6 addresses in the DNS.
 139      */
 140     hints.ai_family = AF_INET;
 141
 142     ret = GetAddrInfoW(name, NULL, &hints, &res);
 143     if (ret != 0)
 144     {
 145         TRACE("failed to get IPv4 address of %s, retrying with IPv6\n", debugstr_w(name));
 146         hints.ai_family = AF_INET6;
 147         ret = GetAddrInfoW(name, NULL, &hints, &res);
 148     }
 149     if (ret != 0)
 150     {
 151         TRACE("failed to get address of %s\n", debugstr_w(name));
 152         return FALSE;
 153     }
 154     if (*sa_len < res->ai_addrlen)
 155     {
 156         WARN("address too small\n");
 157         FreeAddrInfoW(res);
 158         return FALSE;
 159     }
 160     *sa_len = res->ai_addrlen;
 161     memcpy( psa, res->ai_addr, res->ai_addrlen );
 162     /* Copy port */
 163     switch (res->ai_family)
 164     {
 165     case AF_INET:
 166         addr = &((struct sockaddr_in *)psa)->sin_addr;
 167         ((struct sockaddr_in *)psa)->sin_port = htons(port);
 168         break;
 169     case AF_INET6:
 170         addr = &((struct sockaddr_in6 *)psa)->sin6_addr;
 171         ((struct sockaddr_in6 *)psa)->sin6_port = htons(port);
 172         break;
 173     }
 174
 175     if(addr_str)
 176         inet_ntop(res->ai_family, addr, addr_str, INET6_ADDRSTRLEN);
 177     FreeAddrInfoW(res);
 178     return TRUE;
 179 }
 180
 181 /*
 182  * Helper function for sending async Callbacks
 183  */
 184
 185 static const char *get_callback_name(DWORD dwInternetStatus) {
 186     static const wininet_flag_info internet_status[] = {
 187 #define FE(x) { x, #x }
 188         FE(INTERNET_STATUS_RESOLVING_NAME),
 189         FE(INTERNET_STATUS_NAME_RESOLVED),
 190         FE(INTERNET_STATUS_CONNECTING_TO_SERVER),
 191         FE(INTERNET_STATUS_CONNECTED_TO_SERVER),
 192         FE(INTERNET_STATUS_SENDING_REQUEST),
 193         FE(INTERNET_STATUS_REQUEST_SENT),
 194         FE(INTERNET_STATUS_RECEIVING_RESPONSE),
 195         FE(INTERNET_STATUS_RESPONSE_RECEIVED),
 196         FE(INTERNET_STATUS_CTL_RESPONSE_RECEIVED),
 197         FE(INTERNET_STATUS_PREFETCH),
 198         FE(INTERNET_STATUS_CLOSING_CONNECTION),
 199         FE(INTERNET_STATUS_CONNECTION_CLOSED),
 200         FE(INTERNET_STATUS_HANDLE_CREATED),
 201         FE(INTERNET_STATUS_HANDLE_CLOSING),
 202         FE(INTERNET_STATUS_REQUEST_COMPLETE),
 203         FE(INTERNET_STATUS_REDIRECT),
 204         FE(INTERNET_STATUS_INTERMEDIATE_RESPONSE),
 205         FE(INTERNET_STATUS_USER_INPUT_REQUIRED),
 206         FE(INTERNET_STATUS_STATE_CHANGE),
 207         FE(INTERNET_STATUS_COOKIE_SENT),
 208         FE(INTERNET_STATUS_COOKIE_RECEIVED),
 209         FE(INTERNET_STATUS_PRIVACY_IMPACTED),
 210         FE(INTERNET_STATUS_P3P_HEADER),
 211         FE(INTERNET_STATUS_P3P_POLICYREF),
 212         FE(INTERNET_STATUS_COOKIE_HISTORY)
 213 #undef FE
 214     };
 215     DWORD i;
 216
 217     for (i = 0; i < (sizeof(internet_status) / sizeof(internet_status[0])); i++) {
 218         if (internet_status[i].val == dwInternetStatus) return internet_status[i].name;
 219     }
 220     return "Unknown";
 221 }
 222
 223 static const char *debugstr_status_info(DWORD status, void *info)
 224 {
 225     switch(status) {
 226     case INTERNET_STATUS_REQUEST_COMPLETE: {
 227         INTERNET_ASYNC_RESULT *iar = info;
 228         return wine_dbg_sprintf("{%s, %d}", wine_dbgstr_longlong(iar->dwResult), iar->dwError);
 229     }
 230     default:
 231         return wine_dbg_sprintf("%p", info);
 232     }
 233 }
 234
 235 void INTERNET_SendCallback(object_header_t *hdr, DWORD_PTR context, DWORD status, void *info, DWORD info_len)
 236 {
 237     void *new_info = info;
 238
 239     if( !hdr->lpfnStatusCB )
 240         return;
 241
 242     /* the IE5 version of wininet does not
 243        send callbacks if dwContext is zero */
 244     if(!context)
 245         return;
 246
 247     switch(status) {
 248     case INTERNET_STATUS_NAME_RESOLVED:
 249     case INTERNET_STATUS_CONNECTING_TO_SERVER:
 250     case INTERNET_STATUS_CONNECTED_TO_SERVER:
 251         new_info = heap_alloc(info_len);
 252         if(new_info)
 253             memcpy(new_info, info, info_len);
 254         break;
 255     case INTERNET_STATUS_RESOLVING_NAME:
 256     case INTERNET_STATUS_REDIRECT:
 257         if(hdr->dwInternalFlags & INET_CALLBACKW) {
 258             new_info = heap_strdupW(info);
 259             break;
 260         }else {
 261             new_info = heap_strdupWtoA(info);
 262             info_len = strlen(new_info)+1;
 263             break;
 264         }
 265     }
 266
 267     TRACE(" callback(%p) (%p (%p), %08lx, %d (%s), %s, %d)\n",
 268           hdr->lpfnStatusCB, hdr->hInternet, hdr, context, status, get_callback_name(status),
 269           debugstr_status_info(status, new_info), info_len);
 270
 271     hdr->lpfnStatusCB(hdr->hInternet, context, status, new_info, info_len);
 272
 273     TRACE(" end callback().\n");
 274
 275     if(new_info != info)
 276         heap_free(new_info);
 277 }
 278
 279 typedef struct {
 280     task_header_t hdr;
 281     DWORD_PTR context;
 282     DWORD     status;
 283     LPVOID    status_info;
 284     DWORD     status_info_len;
 285 } send_callback_task_t;
 286
 287 static void SendAsyncCallbackProc(task_header_t *hdr)
 288 {
 289     send_callback_task_t *task = (send_callback_task_t*)hdr;
 290
 291     TRACE("%p\n", task->hdr.hdr);
 292
 293     INTERNET_SendCallback(task->hdr.hdr, task->context, task->status, task->status_info, task->status_info_len);
 294
 295     /* And frees the copy of the status info */
 296     heap_free(task->status_info);
 297 }
 298
 299 void SendAsyncCallback(object_header_t *hdr, DWORD_PTR dwContext,
 300                        DWORD dwInternetStatus, LPVOID lpvStatusInfo,
 301                        DWORD dwStatusInfoLength)
 302 {
 303     TRACE("(%p, %08lx, %d (%s), %p, %d): %sasync call with callback %p\n",
 304           hdr, dwContext, dwInternetStatus, get_callback_name(dwInternetStatus),
 305           lpvStatusInfo, dwStatusInfoLength,
 306           hdr->dwFlags & INTERNET_FLAG_ASYNC ? "" : "non ",
 307           hdr->lpfnStatusCB);
 308
 309     if (!(hdr->lpfnStatusCB))
 310         return;
 311
 312     if (hdr->dwFlags & INTERNET_FLAG_ASYNC)
 313     {
 314         send_callback_task_t *task;
 315         void *lpvStatusInfo_copy = lpvStatusInfo;
 316
 317         if (lpvStatusInfo)
 318         {
 319             lpvStatusInfo_copy = heap_alloc(dwStatusInfoLength);
 320             memcpy(lpvStatusInfo_copy, lpvStatusInfo, dwStatusInfoLength);
 321         }
 322
 323         task = alloc_async_task(hdr, SendAsyncCallbackProc, sizeof(*task));
 324         task->context = dwContext;
 325         task->status = dwInternetStatus;
 326         task->status_info = lpvStatusInfo_copy;
 327         task->status_info_len = dwStatusInfoLength;
 328
 329         INTERNET_AsyncCall(&task->hdr);
 330     }
 331     else
 332         INTERNET_SendCallback(hdr, dwContext, dwInternetStatus,
 333                               lpvStatusInfo, dwStatusInfoLength);
 334 }