src/Sockets/HttpdSocket.cpp

   1 /** \file HttpdSocket.cpp
   2 */
   3 /*
   4 Copyright (C) 2001-2007  Anders Hedstrom (grymse@alhem.net)
   5
   6 This library is made available under the terms of the GNU GPL.
   7
   8 If you would like to use this library in a closed-source application,
   9 a separate license agreement is available. For information about
  10 the closed-source license agreement for the C++ sockets library,
  11 please visit http://www.alhem.net/Sockets/license.html and/or
  12 email license@alhem.net.
  13
  14 This program is free software; you can redistribute it and/or
  15 modify it under the terms of the GNU General Public License
  16 as published by the Free Software Foundation; either version 2
  17 of the License, or (at your option) any later version.
  18
  19 This program is distributed in the hope that it will be useful,
  20 but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 GNU General Public License for more details.
  23
  24 You should have received a copy of the GNU General Public License
  25 along with this program; if not, write to the Free Software
  26 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  27 */
  28 #ifdef _MSC_VER
  29 #pragma warning(disable:4786)
  30 #endif
  31 #include "Utility.h"
  32 #include "HttpdCookies.h"
  33 #include "HttpdForm.h"
  34 #include "MemFile.h"
  35 #include "HttpdSocket.h"
  36 #include "Base64.h"
  37
  38
  39 #ifdef SOCKETS_NAMESPACE
  40 namespace SOCKETS_NAMESPACE {
  41 #endif
  42
  43 #define TMPSIZE 10000
  44
  45
  46 // statics
  47 int HttpdSocket::m_request_count = 0;
  48 std::string HttpdSocket::m_start = "";
  49
  50
  51 HttpdSocket::HttpdSocket(ISocketHandler& h)
  52 :HTTPSocket(h)
  53 ,m_content_length(0)
  54 ,m_file(NULL)
  55 ,m_received(0)
  56 ,m_request_id(++m_request_count)
  57 ,m_cookies(NULL)
  58 ,m_form(NULL)
  59 {
  60         m_http_date = datetime2httpdate(GetDate());
  61         if (!m_start.size())
  62                 m_start = m_http_date;
  63 }
  64
  65
  66 HttpdSocket::~HttpdSocket()
  67 {
  68         if (m_file)
  69         {
  70                 delete m_file;
  71         }
  72         if (m_cookies)
  73                 delete m_cookies;
  74         if (m_form)
  75                 delete m_form;
  76 }
  77
  78
  79 void HttpdSocket::OnFirst()
  80 {
  81 }
  82
  83
  84 void HttpdSocket::OnHeader(const std::string& key,const std::string& value)
  85 {
  86         if (!strcasecmp(key.c_str(),"content-length"))
  87         {
  88                 m_content_length = atoi(value.c_str());
  89                 m_content_length_str = value;
  90         }
  91         else
  92         if (!strcasecmp(key.c_str(),"cookie"))
  93         {
  94                 m_http_cookie = value;
  95         }
  96         else
  97         if (!strcasecmp(key.c_str(),"content-type"))
  98         {
  99                 m_content_type = value;
 100         }
 101         else
 102         if (!strcasecmp(key.c_str(),"if-modified-since"))
 103         {
 104                 m_if_modified_since = value;
 105         }
 106 }
 107
 108
 109 void HttpdSocket::OnHeaderComplete()
 110 {
 111         m_cookies = new HttpdCookies(m_http_cookie);
 112
 113         if (GetMethod() == "GET")
 114         {
 115                 Utility::SetEnv("QUERY_STRING", GetQueryString());
 116         }
 117         Utility::SetEnv("REQUEST_METHOD", GetMethod());
 118         Utility::SetEnv("HTTP_COOKIE", m_http_cookie);
 119         Utility::SetEnv("CONTENT_TYPE", m_content_type);
 120         Utility::SetEnv("CONTENT_LENGTH", m_content_length_str);
 121 /*
 122 #if (defined(SOLARIS8) || defined(SOLARIS))
 123         {
 124                 char slask[TMPSIZE];
 125                 if (GetMethod() == "GET")
 126                 {
 127                         sprintf(slask,"QUERY_STRING=%s", GetQueryString().c_str());
 128                         putenv(slask);
 129                 }
 130                 sprintf(slask,"REQUEST_METHOD=%s", GetMethod().c_str());
 131                 putenv(slask);
 132                 sprintf(slask,"HTTP_COOKIE=%s", m_http_cookie.c_str());
 133                 putenv(slask);
 134                 sprintf(slask,"CONTENT_TYPE=%s", m_content_type.c_str());
 135                 putenv(slask);
 136                 sprintf(slask,"CONTENT_LENGTH=%s", m_content_length_str.c_str());
 137                 putenv(slask);
 138         }
 139 #elif defined _WIN32
 140         {
 141                 char slask[TMPSIZE];
 142                 if (GetMethod() == "GET")
 143                 {
 144                         sprintf(slask,"QUERY_STRING=%s", GetQueryString().c_str());
 145                         _putenv(slask);
 146                 }
 147                 sprintf(slask,"REQUEST_METHOD=%s", GetMethod().c_str());
 148                 _putenv(slask);
 149                 sprintf(slask,"HTTP_COOKIE=%s", m_http_cookie.c_str());
 150                 _putenv(slask);
 151                 sprintf(slask,"CONTENT_TYPE=%s", m_content_type.c_str());
 152                 _putenv(slask);
 153                 sprintf(slask,"CONTENT_LENGTH=%s", m_content_length_str.c_str());
 154                 _putenv(slask);
 155         }
 156 #else
 157         if (GetMethod() == "GET")
 158         {
 159                 setenv("QUERY_STRING", GetQueryString().c_str(), 1);
 160         }
 161         setenv("REQUEST_METHOD", GetMethod().c_str(), 1);
 162         setenv("HTTP_COOKIE", m_http_cookie.c_str(), 1);
 163         setenv("CONTENT_TYPE", m_content_type.c_str(), 1);
 164         setenv("CONTENT_LENGTH", m_content_length_str.c_str(), 1);
 165 #endif
 166 */
 167         if (GetMethod() == "POST")
 168         {
 169                 m_file = new MemFile;
 170         }
 171         else
 172         if (GetMethod() == "GET")
 173         {
 174                 m_form = new HttpdForm(GetQueryString(), GetQueryString().size() );
 175                 AddResponseHeader("Date", datetime2httpdate(GetDate()) );
 176                 if (GetUri() == "/image")
 177                 {
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 259 "h5vsQ2+Oy+Wb+JUC6LuAden47Wf/HxO9Igb1Xca9ks8PWjjvxXV+F7X4f/12/sUrC9KVfsDSpcPtIbX/sq+aQf1FubpPoPoekKOHvB0gRwAdIEcAHSBHAB0gRwAd"
 260 "IEcAHSBHAB0gRwAdIEcAHSBHAB0gRwAdIP8HqHccFP4Rq4QAAAAASUVORK5CYII=";
 261                         Send64(str64, "image/png");
 262                 }
 263                 else
 264                 {
 265                         Exec();
 266                 }
 267                 Reset(); // prepare for next request
 268         }
 269         else
 270         {
 271                 AddResponseHeader("Date", GetHttpDate());
 272                 AddResponseHeader("Connection", "close");
 273                 SetStatus("405");
 274                 SetStatusText("Method not allowed");
 275                 SendResponse();
 276         }
 277 }
 278
 279
 280 void HttpdSocket::OnData(const char *p,size_t l)
 281 {
 282         if (m_file)
 283         {
 284                 m_file -> fwrite(p,1,l);
 285         }
 286         m_received += l;
 287         if (m_received >= m_content_length && m_content_length)
 288         {
 289                 // all done
 290                 if (m_file && !m_form)
 291                 {
 292                         m_form = new HttpdForm(m_file, m_content_type, m_content_length);
 293                         AddResponseHeader("Date", datetime2httpdate(GetDate()) );
 294                         if (GetUri() == "/image")
 295                         {
 296                                 std::string str64 =
 297 "iVBORw0KGgoAAAANSUhEUgAAAGAAAABeCAIAAABTioayAAAACXBIWXMAAABkAAAAZAAPlsXdAAAAUHRF"
 298 "WHRSYXcgcHJvZmlsZSB0eXBlIEFQUDEyAApnZW5lcmljIHByb2ZpbGUKICAgICAgMTUKNDQ3NTYzNmI3"
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 300 "HAwlpQlYoUlDaJsAiVuFFKSKGlUlKgXqIKJAKxfRR4IUZEpSt1FoQEK4oYQEErlSFAoKIEoo2BQasBmc"
 301 "2NjyYzxz5957Hnufvfd6fF//2Oecez2hvbXvmZkg3U9b556Zc85ea//291rf+n0bVRWO5P8udLUn8Jdd"
 302 "jgA6QI4AOkCOADpAjgA6QI4AOkCOADpAjgA6QI4AOkCOADpAjgA6QI4AOkCOADpAjgA6QMxVHHtfoUWx"
 303 "/dP+C5fvABGv4gwBAK9qPWg5NLbvrjIY302ujgapAmKrQQiqC3xAQQF0H1AIcyXSq4XeZdegfedfWs78"
 304 "jYKAAgDi3sVri4mqzH+D9DSTu+I2dyVNTEFRl34GUTUikiqotrgoAqqIAhBxqzj7ZocAighXWJUuI0Cq"
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 306 "iKTO+ckkFpO4vVX1Bh3kkKRsDCIBE4sIMRNx8FTPYgwQfJ1k4ZpT3W4nAQBVQaSF/1pcw+VE63JrEKiC"
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 308 "QUlBkGg8af7s7E4n75+6Lu/2iBkUAgJLhP2+RkSJsNU5ACUCQCAyxTQ88eS0rt1gSGdOD621Ik8zs8uH"
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 311 "e3daTH/gBevHjw1EoIXle0ODdJH/KQiCxiiPPOLrWX7taeh1o3ek8wQH26jUao1qa1ZPy6VbgNovtIAi"
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 317 "CxJ1PmQ2H093vvr1L0rUm5//N+5/4N7g4o/92Cs7/R6AiAIxi4AKsOGvf/3Ljz/x0F974S2nr7/RNd5a"
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 319 "/sJjhs31z7n54vaWd3Vd10nWFQ1EBACERlERaHc0vrD1eNNEIkMkIURQNMY0Lj7+xGzz5CCxCMqwak/0"
 320 "7H3QUnf2LZR0VoWHHh7PytnO9nnnQ1XVohoVIqioMBMRGEuGbZbar977xe88+tDx9ecURVNUoZgUs6Is"
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 337 "CAEMJIbP3n//r773jtPX3/zP3/Yh5swY7ORZFAEwH/iPb/va1/64CaFpmqZyvdycOG4tISEBooidVaFu"
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 339 "T4hNJ82SxBpj806GKDFI1ci7/tVbtnYvvPvffHzj2BnndrMsURCM5D35RqtZ5byv66quK9FgjHZSawzPLYUQALwPABCjDIdZU9fW2DRLvZO6dgpS13WeZ7z4yQqT"
 340 "oVVokGqMAgAhhG6WFeV4wIOqruumMgZ63WN3vu9f3PeVz7/lbXfe/MJbGr+1udlhQiT1XqsZGwoiERRANEQBVQARjcQUQqjrWhQBE5B51EeEPM+tsSKSJmysb1wd"
 341 "Y0ySTGIZY0REYFxuq1w1gFpPqICiEqIqmMEgiYLdXj8EEY1BJOHhf/34f/7QB371lpfd+qpXvzHEyclret2cLRMAlI3vpmnVjGblyLtZiD4ExxiJmE1AVIkBAEV0"
 342 "NqtCmAFAjI0hCKJISMgxQpJam1gFcFUTfIyArFHEECEAtstjOETGeDgTUxBRERWJqpLnSZKse+/KcrZ+bC3GEIKcP7f9s6+7/Wd++o2G0RqXGCOxVrLGMIJToB//"
 343 "2z93zbUveN6NL/GvelOMs43jJ6whZgYAUcny1MUmRveyv/X31teve+73v3Bra5JkTlW982nWAQUEBERmTVKMIsv8bCVu+hmXXJel1dYxey/eh6ZxVdNs7QZrNpLE"
 344 "MhMxAmhTBwhU"
 345 "eDMa7wxz7PWstY21lCZp0zREtDtGHzuzWspxk3XTTm7zxB8/Dnlm5gOBzup44byrfVo3ShAsl3mPCCnG2FaL8jzzPjDJcDAb9oeJpcRaZiZCxMPuxj4zDbp0N1nb"
 346 "/wQRReRQz8qwneVZr9dLOQHQKN4FCUFOHM97nTSxIU1SQxo8MkdgyDLV2Yyk6fWU2Tvv+r0OmVxViAgBQwQmO1hT2fWMIc0MU56kxrkmhIgISnFnvBMa6XZ0Y70b"
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 348 "3Niwv/4f7rh48dGN4700tb1+59ix9SxNsyzPsk6ScJoRES+LVIvjsLKiehBgjJLmJkmwqmaIEKOv6zgcDpxzdTUeDrKsY/MMyun2nz14v4+QWOyvZ9NCT5ywk0kw"
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 350 "N19766t+6idv/dR//7RNekUDX/of99766p/+qZff8uZ/+iZj+MMf/M3f/ujdx453Bv38Xe+648v33hsovPGNb3jlT7z0H/z9n/3zBx6KkhCa7dHk4siNp6WPMai4"
 351 "GIJGwKDqDBgFBMW2ugmEK/HShzAxvfStqnY6eaebpanpdPJer9fr9YbD9aIs3vGOn7/x+T/0mte99fOf+0JZlI88svvuf/3OW156653v/y+TIv7Ld75z89RzP/yh"
 352 "3woOzn774XvuuefMDX/17W+9vdM99f67fv+vv/jl7/iltzS1AyARcc4XRbmzuzuZTMbjcTWrfFNp8IbpcvAwnrGTXr7uV19cfGoMV43b2dkarh/LbYaIaUbfeejP"
 353 "LfX/2Vt/hTJ8/W1vfujBb9x371cfefTs2Qfvu/9bX5lOii//yeff8E/eXjf1ffc++KUvfvpFP/gSH8yXvvCZH/nRV9z1n37ZED7y8NlvfPMBm6RENktTiUmU2B5N"
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 357 "irTIxwgBVQyhihiDKupjmfU2b//FX/vNf3/Hpz/1yTPPu3FtfXNtbfNNb373Rz5y529/+D3Dwdrtb/+3onLTTT/0kh9+5clrT2+evLZ201/4xbt+49d/6Rfe/HsR"
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 378 "IEcAHSBHAB0gRwAdIEcAHSBHAB0gRwAdIP8HqHccFP4Rq4QAAAAASUVORK5CYII=";
 379                                 Send64(str64, "image/png");
 380                         }
 381                         else
 382                         {
 383                                 Exec();
 384                         }
 385                         Reset(); // prepare for next request
 386                 }
 387         }
 388 }
 389
 390
 391 void HttpdSocket::Send64(const std::string& str64, const std::string& type)
 392 {
 393         Base64 bb;
 394
 395         if (!strcasecmp(m_start.c_str(), m_if_modified_since.c_str()))
 396         {
 397                 SetStatus("304");
 398                 SetStatusText("Not Modified");
 399                 SendResponse();
 400         }
 401         else
 402         {
 403                 size_t len = bb.decode_length(str64);
 404                 unsigned char *buf = new unsigned char[len];
 405
 406                 SetStatus("200");
 407                 SetStatusText("OK");
 408
 409                 AddResponseHeader("Content-length", Utility::l2string( (long)len) );
 410                 AddResponseHeader("Content-type", type );
 411                 AddResponseHeader("Last-modified", m_start);
 412                 SendResponse();
 413
 414                 bb.decode(str64, buf, len);
 415                 SendBuf( (char *)buf, len);
 416                 delete[] buf;
 417         }
 418 }
 419
 420
 421 std::string HttpdSocket::datetime2httpdate(const std::string& dt)
 422 {
 423         struct tm tp;
 424         time_t t;
 425         const char *days[] = { "Sun","Mon","Tue","Wed","Thu","Fri","Sat" };
 426         const char *months[] = { "Jan","Feb","Mar","Apr","May","Jun",
 427                            "Jul","Aug","Sep","Oct","Nov","Dec" };
 428         int i;
 429         char s[40];
 430
 431 /* 1997-12-16 09:50:40 */
 432
 433         if (dt.size() == 19)
 434         {
 435                 tp.tm_year = atoi(dt.substr(0,4).c_str()) - 1900;
 436                 i = atoi(dt.substr(5,2).c_str()) - 1;
 437                 tp.tm_mon = i >= 0 ? i : 0;
 438                 tp.tm_mday = atoi(dt.substr(8,2).c_str());
 439                 tp.tm_hour = atoi(dt.substr(11,2).c_str());
 440                 tp.tm_min = atoi(dt.substr(14,2).c_str());
 441                 tp.tm_sec = atoi(dt.substr(17,2).c_str());
 442                 tp.tm_wday = 0;
 443                 tp.tm_yday = 0;
 444                 tp.tm_isdst = 0;
 445                 t = mktime(&tp);
 446                 if (t == -1)
 447                 {
 448                         Handler().LogError(this, "datetime2httpdate", 0, "mktime() failed");
 449                 }
 450
 451                 sprintf(s,"%s, %02d %s %d %02d:%02d:%02d GMT",
 452                  days[tp.tm_wday],
 453                  tp.tm_mday,
 454                  months[tp.tm_mon],
 455                  tp.tm_year + 1900,
 456                  tp.tm_hour,tp.tm_min,tp.tm_sec);
 457         }
 458         else
 459         {
 460                 *s = 0;
 461         }
 462         return s;
 463 }
 464
 465
 466 std::string HttpdSocket::GetDate()
 467 {
 468         time_t t = time(NULL);
 469         struct tm tp;
 470 #ifdef _WIN32
 471         memcpy(&tp, localtime(&t), sizeof(tp));
 472 #else
 473         localtime_r(&t, &tp);
 474 #endif
 475         char slask[40]; // yyyy-mm-dd hh:mm:ss
 476         sprintf(slask,"%d-%02d-%02d %02d:%02d:%02d",
 477                 tp.tm_year + 1900,
 478                 tp.tm_mon + 1,
 479                 tp.tm_mday,
 480                 tp.tm_hour,tp.tm_min,tp.tm_sec);
 481         return slask;
 482 }
 483
 484
 485 void HttpdSocket::Reset()
 486 {
 487         HTTPSocket::Reset();
 488         m_content_length = 0;
 489         if (m_file)
 490         {
 491                 delete m_file;
 492                 m_file = NULL;
 493         }
 494         m_received = 0;
 495         m_request_id = ++m_request_count;
 496         if (m_cookies)
 497                 delete m_cookies;
 498         m_cookies = NULL;
 499         if (m_form)
 500                 delete m_form;
 501         m_form = NULL;
 502 }
 503
 504
 505 const std::string& HttpdSocket::GetHttpDate() const
 506 {
 507         return m_http_date;
 508 }
 509
 510
 511 HttpdCookies *HttpdSocket::GetCookies()
 512 {
 513         return m_cookies;
 514 }
 515
 516
 517 const HttpdForm *HttpdSocket::GetForm() const
 518 {
 519         return m_form;
 520 }
 521
 522
 523
 524 #ifdef SOCKETS_NAMESPACE
 525 }
 526 #endif
 527
 528