test/interactive-helper/aptwebserver.cc

   1 #include <config.h>
   2
   3 #include <apt-pkg/strutl.h>
   4 #include <apt-pkg/fileutl.h>
   5 #include <apt-pkg/error.h>
   6 #include <apt-pkg/cmndline.h>
   7 #include <apt-pkg/configuration.h>
   8 #include <apt-pkg/init.h>
   9
  10 #include <vector>
  11 #include <string>
  12 #include <list>
  13 #include <sstream>
  14
  15 #include <sys/socket.h>
  16 #include <sys/types.h>
  17 #include <sys/stat.h>
  18 #include <netinet/in.h>
  19 #include <unistd.h>
  20 #include <errno.h>
  21 #include <time.h>
  22 #include <stdlib.h>
  23 #include <dirent.h>
  24 #include <signal.h>
  25
  26 char const * const httpcodeToStr(int const httpcode)                    /*{{{*/
  27 {
  28    switch (httpcode)
  29    {
  30       // Informational 1xx
  31       case 100: return "100 Continue";
  32       case 101: return "101 Switching Protocols";
  33       // Successful 2xx
  34       case 200: return "200 OK";
  35       case 201: return "201 Created";
  36       case 202: return "202 Accepted";
  37       case 203: return "203 Non-Authoritative Information";
  38       case 204: return "204 No Content";
  39       case 205: return "205 Reset Content";
  40       case 206: return "206 Partial Content";
  41       // Redirections 3xx
  42       case 300: return "300 Multiple Choices";
  43       case 301: return "301 Moved Permanently";
  44       case 302: return "302 Found";
  45       case 303: return "303 See Other";
  46       case 304: return "304 Not Modified";
  47       case 305: return "304 Use Proxy";
  48       case 307: return "307 Temporary Redirect";
  49       // Client errors 4xx
  50       case 400: return "400 Bad Request";
  51       case 401: return "401 Unauthorized";
  52       case 402: return "402 Payment Required";
  53       case 403: return "403 Forbidden";
  54       case 404: return "404 Not Found";
  55       case 405: return "405 Method Not Allowed";
  56       case 406: return "406 Not Acceptable";
  57       case 407: return "407 Proxy Authentication Required";
  58       case 408: return "408 Request Time-out";
  59       case 409: return "409 Conflict";
  60       case 410: return "410 Gone";
  61       case 411: return "411 Length Required";
  62       case 412: return "412 Precondition Failed";
  63       case 413: return "413 Request Entity Too Large";
  64       case 414: return "414 Request-URI Too Large";
  65       case 415: return "415 Unsupported Media Type";
  66       case 416: return "416 Requested range not satisfiable";
  67       case 417: return "417 Expectation Failed";
  68       case 418: return "418 I'm a teapot";
  69       // Server error 5xx
  70       case 500: return "500 Internal Server Error";
  71       case 501: return "501 Not Implemented";
  72       case 502: return "502 Bad Gateway";
  73       case 503: return "503 Service Unavailable";
  74       case 504: return "504 Gateway Time-out";
  75       case 505: return "505 HTTP Version not supported";
  76    }
  77    return NULL;
  78 }
  79                                                                         /*}}}*/
  80 void addFileHeaders(std::list<std::string> &headers, FileFd &data)      /*{{{*/
  81 {
  82    std::ostringstream contentlength;
  83    contentlength << "Content-Length: " << data.FileSize();
  84    headers.push_back(contentlength.str());
  85
  86    std::string lastmodified("Last-Modified: ");
  87    lastmodified.append(TimeRFC1123(data.ModificationTime()));
  88    headers.push_back(lastmodified);
  89 }
  90                                                                         /*}}}*/
  91 void addDataHeaders(std::list<std::string> &headers, std::string &data) /*{{{*/
  92 {
  93    std::ostringstream contentlength;
  94    contentlength << "Content-Length: " << data.size();
  95    headers.push_back(contentlength.str());
  96 }
  97                                                                         /*}}}*/
  98 bool sendHead(int const client, int const httpcode, std::list<std::string> &headers)/*{{{*/
  99 {
 100    std::string response("HTTP/1.1 ");
 101    response.append(httpcodeToStr(httpcode));
 102    headers.push_front(response);
 103
 104    headers.push_back("Server: APT webserver");
 105
 106    std::string date("Date: ");
 107    date.append(TimeRFC1123(time(NULL)));
 108    headers.push_back(date);
 109
 110    std::clog << ">>> RESPONSE >>>" << std::endl;
 111    bool Success = true;
 112    for (std::list<std::string>::const_iterator h = headers.begin();
 113         Success == true && h != headers.end(); ++h)
 114    {
 115       Success &= FileFd::Write(client, h->c_str(), h->size());
 116       if (Success == true)
 117          Success &= FileFd::Write(client, "\r\n", 2);
 118       std::clog << *h << std::endl;
 119    }
 120    if (Success == true)
 121       Success &= FileFd::Write(client, "\r\n", 2);
 122    std::clog << "<<<<<<<<<<<<<<<<" << std::endl;
 123    return Success;
 124 }
 125                                                                         /*}}}*/
 126 bool sendFile(int const client, FileFd &data)                           /*{{{*/
 127 {
 128    bool Success = true;
 129    char buffer[500];
 130    unsigned long long actual = 0;
 131    while ((Success &= data.Read(buffer, sizeof(buffer), &actual)) == true)
 132    {
 133       if (actual == 0)
 134          break;
 135       if (Success == true)
 136          Success &= FileFd::Write(client, buffer, actual);
 137    }
 138    if (Success == true)
 139       Success &= FileFd::Write(client, "\r\n", 2);
 140    return Success;
 141 }
 142                                                                         /*}}}*/
 143 bool sendData(int const client, std::string const &data)                /*{{{*/
 144 {
 145    bool Success = true;
 146    Success &= FileFd::Write(client, data.c_str(), data.size());
 147    if (Success == true)
 148       Success &= FileFd::Write(client, "\r\n", 2);
 149    return Success;
 150 }
 151                                                                         /*}}}*/
 152 void sendError(int const client, int const httpcode, std::string const &request,/*{{{*/
 153                bool content, std::string const &error = "")
 154 {
 155    std::list<std::string> headers;
 156    std::string response("<html><head><title>");
 157    response.append(httpcodeToStr(httpcode)).append("</title></head>");
 158    response.append("<body><h1>").append(httpcodeToStr(httpcode)).append("</h1>");
 159    if (httpcode != 200)
 160    {
 161       if (error.empty() == false)
 162          response.append("<p><em>Error</em>: ").append(error).append("</p>");
 163       response.append("This error is a result of the request: <pre>");
 164    }
 165    else
 166    {
 167       if (error.empty() == false)
 168          response.append("<p><em>Success</em>: ").append(error).append("</p>");
 169       response.append("The successfully executed operation was requested by: <pre>");
 170    }
 171    response.append(request).append("</pre></body></html>");
 172    addDataHeaders(headers, response);
 173    sendHead(client, httpcode, headers);
 174    if (content == true)
 175       sendData(client, response);
 176 }
 177 void sendSuccess(int const client, std::string const &request,
 178                bool content, std::string const &error = "")
 179 {
 180    sendError(client, 200, request, content, error);
 181 }
 182                                                                         /*}}}*/
 183 void sendRedirect(int const client, int const httpcode, std::string const &uri,/*{{{*/
 184                   std::string const &request, bool content)
 185 {
 186    std::list<std::string> headers;
 187    std::string response("<html><head><title>");
 188    response.append(httpcodeToStr(httpcode)).append("</title></head>");
 189    response.append("<body><h1>").append(httpcodeToStr(httpcode)).append("</h1");
 190    response.append("<p>You should be redirected to <em>").append(uri).append("</em></p>");
 191    response.append("This page is a result of the request: <pre>");
 192    response.append(request).append("</pre></body></html>");
 193    addDataHeaders(headers, response);
 194    std::string location("Location: ");
 195    if (strncmp(uri.c_str(), "http://", 7) != 0)
 196       location.append("http://").append(LookupTag(request, "Host")).append("/").append(uri);
 197    else
 198       location.append(uri);
 199    headers.push_back(location);
 200    sendHead(client, httpcode, headers);
 201    if (content == true)
 202       sendData(client, response);
 203 }
 204                                                                         /*}}}*/
 205 int filter_hidden_files(const struct dirent *a)                         /*{{{*/
 206 {
 207    if (a->d_name[0] == '.')
 208       return 0;
 209 #ifdef _DIRENT_HAVE_D_TYPE
 210    // if we have the d_type check that only files and dirs will be included
 211    if (a->d_type != DT_UNKNOWN &&
 212        a->d_type != DT_REG &&
 213        a->d_type != DT_LNK && // this includes links to regular files
 214        a->d_type != DT_DIR)
 215       return 0;
 216 #endif
 217    return 1;
 218 }
 219 int grouped_alpha_case_sort(const struct dirent **a, const struct dirent **b) {
 220 #ifdef _DIRENT_HAVE_D_TYPE
 221    if ((*a)->d_type == DT_DIR && (*b)->d_type == DT_DIR);
 222    else if ((*a)->d_type == DT_DIR && (*b)->d_type == DT_REG)
 223       return -1;
 224    else if ((*b)->d_type == DT_DIR && (*a)->d_type == DT_REG)
 225       return 1;
 226    else
 227 #endif
 228    {
 229       struct stat f_prop; //File's property
 230       stat((*a)->d_name, &f_prop);
 231       int const amode = f_prop.st_mode;
 232       stat((*b)->d_name, &f_prop);
 233       int const bmode = f_prop.st_mode;
 234       if (S_ISDIR(amode) && S_ISDIR(bmode));
 235       else if (S_ISDIR(amode))
 236          return -1;
 237       else if (S_ISDIR(bmode))
 238          return 1;
 239    }
 240    return strcasecmp((*a)->d_name, (*b)->d_name);
 241 }
 242                                                                         /*}}}*/
 243 void sendDirectoryListing(int const client, std::string const &dir,     /*{{{*/
 244                           std::string const &request, bool content)
 245 {
 246    std::list<std::string> headers;
 247    std::ostringstream listing;
 248
 249    struct dirent **namelist;
 250    int const counter = scandir(dir.c_str(), &namelist, filter_hidden_files, grouped_alpha_case_sort);
 251    if (counter == -1)
 252    {
 253       sendError(client, 500, request, content);
 254       return;
 255    }
 256
 257    listing << "<html><head><title>Index of " << dir << "</title>"
 258            << "<style type=\"text/css\"><!-- td {padding: 0.02em 0.5em 0.02em 0.5em;}"
 259            << "tr:nth-child(even){background-color:#dfdfdf;}"
 260            << "h1, td:nth-child(3){text-align:center;}"
 261            << "table {margin-left:auto;margin-right:auto;} --></style>"
 262            << "</head>" << std::endl
 263            << "<body><h1>Index of " << dir << "</h1>" << std::endl
 264            << "<table><tr><th>#</th><th>Name</th><th>Size</th><th>Last-Modified</th></tr>" << std::endl;
 265    if (dir != ".")
 266       listing << "<tr><td>d</td><td><a href=\"..\">Parent Directory</a></td><td>-</td><td>-</td></tr>";
 267    for (int i = 0; i < counter; ++i) {
 268       struct stat fs;
 269       std::string filename(dir);
 270       filename.append("/").append(namelist[i]->d_name);
 271       stat(filename.c_str(), &fs);
 272       if (S_ISDIR(fs.st_mode))
 273       {
 274          listing << "<tr><td>d</td>"
 275                  << "<td><a href=\"" << namelist[i]->d_name << "/\">" << namelist[i]->d_name << "</a></td>"
 276                  << "<td>-</td>";
 277       }
 278       else
 279       {
 280          listing << "<tr><td>f</td>"
 281                  << "<td><a href=\"" << namelist[i]->d_name << "\">" << namelist[i]->d_name << "</a></td>"
 282                  << "<td>" << SizeToStr(fs.st_size) << "B</td>";
 283       }
 284       listing << "<td>" << TimeRFC1123(fs.st_mtime) << "</td></tr>" << std::endl;
 285    }
 286    listing << "</table></body></html>" << std::endl;
 287
 288    std::string response(listing.str());
 289    addDataHeaders(headers, response);
 290    sendHead(client, 200, headers);
 291    if (content == true)
 292       sendData(client, response);
 293 }
 294                                                                         /*}}}*/
 295 bool parseFirstLine(int const client, std::string const &request,       /*{{{*/
 296                     std::string &filename, bool &sendContent,
 297                     bool &closeConnection)
 298 {
 299    if (strncmp(request.c_str(), "HEAD ", 5) == 0)
 300       sendContent = false;
 301    if (strncmp(request.c_str(), "GET ", 4) != 0)
 302    {
 303       sendError(client, 501, request, true);
 304       return false;
 305    }
 306
 307    size_t const lineend = request.find('\n');
 308    size_t filestart = request.find(' ');
 309    for (; request[filestart] == ' '; ++filestart);
 310    size_t fileend = request.rfind(' ', lineend);
 311    if (lineend == std::string::npos || filestart == std::string::npos ||
 312          fileend == std::string::npos || filestart == fileend)
 313    {
 314       sendError(client, 500, request, sendContent, "Filename can't be extracted");
 315       return false;
 316    }
 317
 318    size_t httpstart = fileend;
 319    for (; request[httpstart] == ' '; ++httpstart);
 320    if (strncmp(request.c_str() + httpstart, "HTTP/1.1\r", 9) == 0)
 321       closeConnection = strcasecmp(LookupTag(request, "Connection", "Keep-Alive").c_str(), "Keep-Alive") != 0;
 322    else if (strncmp(request.c_str() + httpstart, "HTTP/1.0\r", 9) == 0)
 323       closeConnection = strcasecmp(LookupTag(request, "Connection", "Keep-Alive").c_str(), "close") == 0;
 324    else
 325    {
 326       sendError(client, 500, request, sendContent, "Not a HTTP/1.{0,1} request");
 327       return false;
 328    }
 329
 330    filename = request.substr(filestart, fileend - filestart);
 331    if (filename.find(' ') != std::string::npos)
 332    {
 333       sendError(client, 500, request, sendContent, "Filename contains an unencoded space");
 334       return false;
 335    }
 336
 337    std::string host = LookupTag(request, "Host", "");
 338    if (host.empty() == true)
 339    {
 340       // RFC 2616 §14.23 requires Host
 341       sendError(client, 400, request, sendContent, "Host header is required");
 342       return false;
 343    }
 344    host = "http://" + host;
 345
 346    // Proxies require absolute uris, so this is a simple proxy-fake option
 347    std::string const absolute = _config->Find("aptwebserver::request::absolute", "uri,path");
 348    if (strncmp(host.c_str(), filename.c_str(), host.length()) == 0)
 349    {
 350       if (absolute.find("uri") == std::string::npos)
 351       {
 352          sendError(client, 400, request, sendContent, "Request is absoluteURI, but configured to not accept that");
 353          return false;
 354       }
 355       // strip the host from the request to make it an absolute path
 356       filename.erase(0, host.length());
 357    }
 358    else if (absolute.find("path") == std::string::npos)
 359    {
 360       sendError(client, 400, request, sendContent, "Request is absolutePath, but configured to not accept that");
 361       return false;
 362    }
 363    filename = DeQuoteString(filename);
 364
 365    // this is not a secure server, but at least prevent the obvious …
 366    if (filename.empty() == true || filename[0] != '/' ||
 367        strncmp(filename.c_str(), "//", 2) == 0 ||
 368        filename.find_first_of("\r\n\t\f\v") != std::string::npos ||
 369        filename.find("/../") != std::string::npos)
 370    {
 371       sendError(client, 400, request, sendContent, "Filename contains illegal character (sequence)");
 372       return false;
 373    }
 374
 375    // nuke the first character which is a / as we assured above
 376    filename.erase(0, 1);
 377    if (filename.empty() == true)
 378       filename = ".";
 379    return true;
 380 }
 381                                                                         /*}}}*/
 382 bool handleOnTheFlyReconfiguration(int const client, std::string const &request, std::vector<std::string> const &parts)/*{{{*/
 383 {
 384    size_t const pcount = parts.size();
 385    if (pcount == 4 && parts[1] == "set")
 386    {
 387       _config->Set(parts[2], parts[3]);
 388       sendSuccess(client, request, true, "Option '" + parts[2] + "' was set to '" + parts[3] + "'!");
 389       return true;
 390    }
 391    else if (pcount == 4 && parts[1] == "find")
 392    {
 393       std::list<std::string> headers;
 394       std::string response = _config->Find(parts[2], parts[3]);
 395       addDataHeaders(headers, response);
 396       sendHead(client, 200, headers);
 397       sendData(client, response);
 398       return true;
 399    }
 400    else if (pcount == 3 && parts[1] == "find")
 401    {
 402       std::list<std::string> headers;
 403       if (_config->Exists(parts[2]) == true)
 404       {
 405          std::string response = _config->Find(parts[2]);
 406          addDataHeaders(headers, response);
 407          sendHead(client, 200, headers);
 408          sendData(client, response);
 409          return true;
 410       }
 411       sendError(client, 404, request, "Requested Configuration option doesn't exist.");
 412       return false;
 413    }
 414    else if (pcount == 3 && parts[1] == "clear")
 415    {
 416       _config->Clear(parts[2]);
 417       sendSuccess(client, request, true, "Option '" + parts[2] + "' was cleared.");
 418       return true;
 419    }
 420
 421    sendError(client, 400, request, true, "Unknown on-the-fly configuration request");
 422    return false;
 423 }
 424                                                                         /*}}}*/
 425 int main(int const argc, const char * argv[])
 426 {
 427    CommandLine::Args Args[] = {
 428       {0, "port", "aptwebserver::port", CommandLine::HasArg},
 429       {0, "request-absolute", "aptwebserver::request::absolute", CommandLine::HasArg},
 430       {'c',"config-file",0,CommandLine::ConfigFile},
 431       {'o',"option",0,CommandLine::ArbItem},
 432       {0,0,0,0}
 433    };
 434
 435    CommandLine CmdL(Args, _config);
 436    if(CmdL.Parse(argc,argv) == false)
 437    {
 438       _error->DumpErrors();
 439       exit(1);
 440    }
 441
 442    // create socket, bind and listen to it {{{
 443    // ignore SIGPIPE, this can happen on write() if the socket closes connection
 444    signal(SIGPIPE, SIG_IGN);
 445    int sock = socket(AF_INET6, SOCK_STREAM, 0);
 446    if(sock < 0)
 447    {
 448       _error->Errno("aptwerbserver", "Couldn't create socket");
 449       _error->DumpErrors(std::cerr);
 450       return 1;
 451    }
 452
 453    int const port = _config->FindI("aptwebserver::port", 8080);
 454
 455    // ensure that we accept all connections: v4 or v6
 456    int const iponly = 0;
 457    setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &iponly, sizeof(iponly));
 458    // to not linger on an address
 459    int const enable = 1;
 460    setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable));
 461
 462    struct sockaddr_in6 locAddr;
 463    memset(&locAddr, 0, sizeof(locAddr));
 464    locAddr.sin6_family = AF_INET6;
 465    locAddr.sin6_port = htons(port);
 466    locAddr.sin6_addr = in6addr_any;
 467
 468    if (bind(sock, (struct sockaddr*) &locAddr, sizeof(locAddr)) < 0)
 469    {
 470       _error->Errno("aptwerbserver", "Couldn't bind");
 471       _error->DumpErrors(std::cerr);
 472       return 2;
 473    }
 474
 475    FileFd pidfile;
 476    if (_config->FindB("aptwebserver::fork", false) == true)
 477    {
 478       std::string const pidfilename = _config->Find("aptwebserver::pidfile", "aptwebserver.pid");
 479       int const pidfilefd = GetLock(pidfilename);
 480       if (pidfilefd < 0 || pidfile.OpenDescriptor(pidfilefd, FileFd::WriteOnly) == false)
 481       {
 482          _error->Errno("aptwebserver", "Couldn't acquire lock on pidfile '%s'", pidfilename.c_str());
 483          _error->DumpErrors(std::cerr);
 484          return 3;
 485       }
 486
 487       pid_t child = fork();
 488       if (child < 0)
 489       {
 490          _error->Errno("aptwebserver", "Forking failed");
 491          _error->DumpErrors(std::cerr);
 492          return 4;
 493       }
 494       else if (child != 0)
 495       {
 496          // successfully forked: ready to serve!
 497          std::string pidcontent;
 498          strprintf(pidcontent, "%d", child);
 499          pidfile.Write(pidcontent.c_str(), pidcontent.size());
 500          if (_error->PendingError() == true)
 501          {
 502             _error->DumpErrors(std::cerr);
 503             return 5;
 504          }
 505          std::cout << "Successfully forked as " << child << std::endl;
 506          return 0;
 507       }
 508    }
 509
 510    std::clog << "Serving ANY file on port: " << port << std::endl;
 511
 512    listen(sock, 1);
 513    /*}}}*/
 514
 515    std::vector<std::string> messages;
 516    int client;
 517    while ((client = accept(sock, NULL, NULL)) != -1)
 518    {
 519       std::clog << "ACCEPT client " << client
 520                 << " on socket " << sock << std::endl;
 521
 522       while (ReadMessages(client, messages))
 523       {
 524          bool closeConnection = false;
 525          for (std::vector<std::string>::const_iterator m = messages.begin();
 526               m != messages.end() && closeConnection == false; ++m) {
 527             std::clog << ">>> REQUEST >>>>" << std::endl << *m
 528                       << std::endl << "<<<<<<<<<<<<<<<<" << std::endl;
 529             std::list<std::string> headers;
 530             std::string filename;
 531             bool sendContent = true;
 532             if (parseFirstLine(client, *m, filename, sendContent, closeConnection) == false)
 533                continue;
 534
 535             // special webserver command request
 536             if (filename.length() > 1 && filename[0] == '_')
 537             {
 538                std::vector<std::string> parts = VectorizeString(filename, '/');
 539                if (parts[0] == "_config")
 540                {
 541                   handleOnTheFlyReconfiguration(client, *m, parts);
 542                   continue;
 543                }
 544             }
 545
 546             // string replacements in the requested filename
 547             ::Configuration::Item const *Replaces = _config->Tree("aptwebserver::redirect::replace");
 548             if (Replaces != NULL)
 549             {
 550                std::string redirect = "/" + filename;
 551                for (::Configuration::Item *I = Replaces->Child; I != NULL; I = I->Next)
 552                   redirect = SubstVar(redirect, I->Tag, I->Value);
 553                redirect.erase(0,1);
 554                if (redirect != filename)
 555                {
 556                   sendRedirect(client, 301, redirect, *m, sendContent);
 557                   continue;
 558                }
 559             }
 560
 561             ::Configuration::Item const *Overwrite = _config->Tree("aptwebserver::overwrite");
 562             if (Overwrite != NULL)
 563             {
 564                for (::Configuration::Item *I = Overwrite->Child; I != NULL; I = I->Next)
 565                {
 566                   regex_t *pattern = new regex_t;
 567                   int const res = regcomp(pattern, I->Tag.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
 568                   if (res != 0)
 569                   {
 570                      char error[300];
 571                      regerror(res, pattern, error, sizeof(error));
 572                      sendError(client, 500, *m, sendContent, error);
 573                      continue;
 574                   }
 575                   if (regexec(pattern, filename.c_str(), 0, 0, 0) == 0)
 576                   {
 577                       filename = _config->Find("aptwebserver::overwrite::" + I->Tag + "::filename", filename);
 578                       if (filename[0] == '/')
 579                          filename.erase(0,1);
 580                       regfree(pattern);
 581                       break;
 582                   }
 583                   regfree(pattern);
 584                }
 585             }
 586
 587             // deal with the request
 588             if (RealFileExists(filename) == true)
 589             {
 590                FileFd data(filename, FileFd::ReadOnly);
 591                std::string condition = LookupTag(*m, "If-Modified-Since", "");
 592                if (condition.empty() == false)
 593                {
 594                   time_t cache;
 595                   if (RFC1123StrToTime(condition.c_str(), cache) == true &&
 596                         cache >= data.ModificationTime())
 597                   {
 598                      sendHead(client, 304, headers);
 599                      continue;
 600                   }
 601                }
 602
 603                addFileHeaders(headers, data);
 604                sendHead(client, 200, headers);
 605                if (sendContent == true)
 606                   sendFile(client, data);
 607             }
 608             else if (DirectoryExists(filename) == true)
 609             {
 610                if (filename == "." || filename[filename.length()-1] == '/')
 611                   sendDirectoryListing(client, filename, *m, sendContent);
 612                else
 613                   sendRedirect(client, 301, filename.append("/"), *m, sendContent);
 614             }
 615             else
 616                sendError(client, 404, *m, sendContent);
 617          }
 618          _error->DumpErrors(std::cerr);
 619          messages.clear();
 620          if (closeConnection == true)
 621             break;
 622       }
 623
 624       std::clog << "CLOSE client " << client
 625                 << " on socket " << sock << std::endl;
 626       close(client);
 627    }
 628    pidfile.Close();
 629
 630    return 0;
 631 }