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[apt.git] / test / interactive-helper / aptwebserver.cc
index 94f63bb39e590d3427fab91eb0d5d0e2d87f79f7..b7663a76aa421b34c48f2745890548b79c7dce4e 100644 (file)
@@ -112,7 +112,7 @@ bool sendHead(int const client, int const httpcode, std::list<std::string> &head
    date.append(TimeRFC1123(time(NULL)));
    headers.push_back(date);
 
-   std::clog << ">>> RESPONSE >>>" << std::endl;
+   std::clog << ">>> RESPONSE to " << client << " >>>" << std::endl;
    bool Success = true;
    for (std::list<std::string>::const_iterator h = headers.begin();
        Success == true && h != headers.end(); ++h)
@@ -470,6 +470,173 @@ bool handleOnTheFlyReconfiguration(int const client, std::string const &request,
    return false;
 }
                                                                        /*}}}*/
+void * handleClient(void * voidclient)                                 /*{{{*/
+{
+   int client = *((int*)(voidclient));
+   std::clog << "ACCEPT client " << client << std::endl;
+   std::vector<std::string> messages;
+   while (ReadMessages(client, messages))
+   {
+      bool closeConnection = false;
+      for (std::vector<std::string>::const_iterator m = messages.begin();
+           m != messages.end() && closeConnection == false; ++m) {
+        std::clog << ">>> REQUEST from " << client << " >>>" << std::endl << *m
+           << std::endl << "<<<<<<<<<<<<<<<<" << std::endl;
+        std::list<std::string> headers;
+        std::string filename;
+        std::string params;
+        bool sendContent = true;
+        if (parseFirstLine(client, *m, filename, params, sendContent, closeConnection) == false)
+           continue;
+
+        // special webserver command request
+        if (filename.length() > 1 && filename[0] == '_')
+        {
+           std::vector<std::string> parts = VectorizeString(filename, '/');
+           if (parts[0] == "_config")
+           {
+              handleOnTheFlyReconfiguration(client, *m, parts);
+              continue;
+           }
+        }
+
+        // string replacements in the requested filename
+        ::Configuration::Item const *Replaces = _config->Tree("aptwebserver::redirect::replace");
+        if (Replaces != NULL)
+        {
+           std::string redirect = "/" + filename;
+           for (::Configuration::Item *I = Replaces->Child; I != NULL; I = I->Next)
+              redirect = SubstVar(redirect, I->Tag, I->Value);
+           redirect.erase(0,1);
+           if (redirect != filename)
+           {
+              sendRedirect(client, 301, redirect, *m, sendContent);
+              continue;
+           }
+        }
+
+        ::Configuration::Item const *Overwrite = _config->Tree("aptwebserver::overwrite");
+        if (Overwrite != NULL)
+        {
+           for (::Configuration::Item *I = Overwrite->Child; I != NULL; I = I->Next)
+           {
+              regex_t *pattern = new regex_t;
+              int const res = regcomp(pattern, I->Tag.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
+              if (res != 0)
+              {
+                 char error[300];
+                 regerror(res, pattern, error, sizeof(error));
+                 sendError(client, 500, *m, sendContent, error);
+                 continue;
+              }
+              if (regexec(pattern, filename.c_str(), 0, 0, 0) == 0)
+              {
+                 filename = _config->Find("aptwebserver::overwrite::" + I->Tag + "::filename", filename);
+                 if (filename[0] == '/')
+                    filename.erase(0,1);
+                 regfree(pattern);
+                 break;
+              }
+              regfree(pattern);
+           }
+        }
+
+        // deal with the request
+        if (RealFileExists(filename) == true)
+        {
+           FileFd data(filename, FileFd::ReadOnly);
+           std::string condition = LookupTag(*m, "If-Modified-Since", "");
+           if (_config->FindB("aptwebserver::support::modified-since", true) == true && condition.empty() == false)
+           {
+              time_t cache;
+              if (RFC1123StrToTime(condition.c_str(), cache) == true &&
+                    cache >= data.ModificationTime())
+              {
+                 sendHead(client, 304, headers);
+                 continue;
+              }
+           }
+
+           if (_config->FindB("aptwebserver::support::range", true) == true)
+              condition = LookupTag(*m, "Range", "");
+           else
+              condition.clear();
+           if (condition.empty() == false && strncmp(condition.c_str(), "bytes=", 6) == 0)
+           {
+              time_t cache;
+              std::string ifrange;
+              if (_config->FindB("aptwebserver::support::if-range", true) == true)
+                 ifrange = LookupTag(*m, "If-Range", "");
+              bool validrange = (ifrange.empty() == true ||
+                    (RFC1123StrToTime(ifrange.c_str(), cache) == true &&
+                     cache <= data.ModificationTime()));
+
+              // FIXME: support multiple byte-ranges (APT clients do not do this)
+              if (condition.find(',') == std::string::npos)
+              {
+                 size_t start = 6;
+                 unsigned long long filestart = strtoull(condition.c_str() + start, NULL, 10);
+                 // FIXME: no support for last-byte-pos being not the end of the file (APT clients do not do this)
+                 size_t dash = condition.find('-') + 1;
+                 unsigned long long fileend = strtoull(condition.c_str() + dash, NULL, 10);
+                 unsigned long long filesize = data.FileSize();
+                 if ((fileend == 0 || (fileend == filesize && fileend >= filestart)) &&
+                       validrange == true)
+                 {
+                    if (filesize > filestart)
+                    {
+                       data.Skip(filestart);
+                       std::ostringstream contentlength;
+                       contentlength << "Content-Length: " << (filesize - filestart);
+                       headers.push_back(contentlength.str());
+                       std::ostringstream contentrange;
+                       contentrange << "Content-Range: bytes " << filestart << "-"
+                          << filesize - 1 << "/" << filesize;
+                       headers.push_back(contentrange.str());
+                       sendHead(client, 206, headers);
+                       if (sendContent == true)
+                          sendFile(client, data);
+                       continue;
+                    }
+                    else
+                    {
+                       headers.push_back("Content-Length: 0");
+                       std::ostringstream contentrange;
+                       contentrange << "Content-Range: bytes */" << filesize;
+                       headers.push_back(contentrange.str());
+                       sendHead(client, 416, headers);
+                       continue;
+                    }
+                 }
+              }
+           }
+
+           addFileHeaders(headers, data);
+           sendHead(client, 200, headers);
+           if (sendContent == true)
+              sendFile(client, data);
+        }
+        else if (DirectoryExists(filename) == true)
+        {
+           if (filename[filename.length()-1] == '/')
+              sendDirectoryListing(client, filename, *m, sendContent);
+           else
+              sendRedirect(client, 301, filename.append("/"), *m, sendContent);
+        }
+        else
+           sendError(client, 404, *m, sendContent);
+      }
+      _error->DumpErrors(std::cerr);
+      messages.clear();
+      if (closeConnection == true)
+        break;
+   }
+   close(client);
+   std::clog << "CLOSE client " << client << std::endl;
+   return NULL;
+}
+                                                                       /*}}}*/
+
 int main(int const argc, const char * argv[])
 {
    CommandLine::Args Args[] = {
@@ -490,6 +657,9 @@ int main(int const argc, const char * argv[])
    // create socket, bind and listen to it {{{
    // ignore SIGPIPE, this can happen on write() if the socket closes connection
    signal(SIGPIPE, SIG_IGN);
+   // we don't care for our slaves, so ignore their death
+   signal(SIGCHLD, SIG_IGN);
+
    int sock = socket(AF_INET6, SOCK_STREAM, 0);
    if(sock < 0)
    {
@@ -557,179 +727,47 @@ int main(int const argc, const char * argv[])
 
    std::clog << "Serving ANY file on port: " << port << std::endl;
 
-   listen(sock, 1);
+   int const slaves = _config->FindB("aptwebserver::slaves", SOMAXCONN);
+   listen(sock, slaves);
    /*}}}*/
 
    _config->CndSet("aptwebserver::response-header::Server", "APT webserver");
    _config->CndSet("aptwebserver::response-header::Accept-Ranges", "bytes");
    _config->CndSet("aptwebserver::directoryindex", "index.html");
 
-   std::vector<std::string> messages;
-   int client;
-   while ((client = accept(sock, NULL, NULL)) != -1)
-   {
-      std::clog << "ACCEPT client " << client
-               << " on socket " << sock << std::endl;
+   std::list<int> accepted_clients;
 
-      while (ReadMessages(client, messages))
+   while (true)
+   {
+      int client = accept(sock, NULL, NULL);
+      if (client == -1)
       {
-        bool closeConnection = false;
-        for (std::vector<std::string>::const_iterator m = messages.begin();
-             m != messages.end() && closeConnection == false; ++m) {
-           std::clog << ">>> REQUEST >>>>" << std::endl << *m
-                     << std::endl << "<<<<<<<<<<<<<<<<" << std::endl;
-           std::list<std::string> headers;
-           std::string filename;
-           bool sendContent = true;
-           if (parseFirstLine(client, *m, filename, sendContent, closeConnection) == false)
-              continue;
-
-           // special webserver command request
-           if (filename.length() > 1 && filename[0] == '_')
-           {
-              std::vector<std::string> parts = VectorizeString(filename, '/');
-              if (parts[0] == "_config")
-              {
-                 handleOnTheFlyReconfiguration(client, *m, parts);
-                 continue;
-              }
-           }
-
-           // string replacements in the requested filename
-           ::Configuration::Item const *Replaces = _config->Tree("aptwebserver::redirect::replace");
-           if (Replaces != NULL)
-           {
-              std::string redirect = "/" + filename;
-              for (::Configuration::Item *I = Replaces->Child; I != NULL; I = I->Next)
-                 redirect = SubstVar(redirect, I->Tag, I->Value);
-              redirect.erase(0,1);
-              if (redirect != filename)
-              {
-                 sendRedirect(client, 301, redirect, *m, sendContent);
-                 continue;
-              }
-           }
-
-           ::Configuration::Item const *Overwrite = _config->Tree("aptwebserver::overwrite");
-           if (Overwrite != NULL)
-           {
-              for (::Configuration::Item *I = Overwrite->Child; I != NULL; I = I->Next)
-              {
-                 regex_t *pattern = new regex_t;
-                 int const res = regcomp(pattern, I->Tag.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
-                 if (res != 0)
-                 {
-                    char error[300];
-                    regerror(res, pattern, error, sizeof(error));
-                    sendError(client, 500, *m, sendContent, error);
-                    continue;
-                 }
-                 if (regexec(pattern, filename.c_str(), 0, 0, 0) == 0)
-                 {
-                     filename = _config->Find("aptwebserver::overwrite::" + I->Tag + "::filename", filename);
-                     if (filename[0] == '/')
-                        filename.erase(0,1);
-                     regfree(pattern);
-                     break;
-                 }
-                 regfree(pattern);
-              }
-           }
-
-           // deal with the request
-           if (RealFileExists(filename) == true)
-           {
-              FileFd data(filename, FileFd::ReadOnly);
-              std::string condition = LookupTag(*m, "If-Modified-Since", "");
-              if (condition.empty() == false)
-              {
-                 time_t cache;
-                 if (RFC1123StrToTime(condition.c_str(), cache) == true &&
-                       cache >= data.ModificationTime())
-                 {
-                    sendHead(client, 304, headers);
-                    continue;
-                 }
-              }
-
-              if (_config->FindB("aptwebserver::support::range", true) == true)
-                 condition = LookupTag(*m, "Range", "");
-              else
-                 condition.clear();
-              if (condition.empty() == false && strncmp(condition.c_str(), "bytes=", 6) == 0)
-              {
-                 time_t cache;
-                 std::string ifrange;
-                 if (_config->FindB("aptwebserver::support::if-range", true) == true)
-                    ifrange = LookupTag(*m, "If-Range", "");
-                 bool validrange = (ifrange.empty() == true ||
-                       (RFC1123StrToTime(ifrange.c_str(), cache) == true &&
-                        cache <= data.ModificationTime()));
-
-                 // FIXME: support multiple byte-ranges (APT clients do not do this)
-                 if (condition.find(',') == std::string::npos)
-                 {
-                    size_t start = 6;
-                    unsigned long long filestart = strtoull(condition.c_str() + start, NULL, 10);
-                    // FIXME: no support for last-byte-pos being not the end of the file (APT clients do not do this)
-                    size_t dash = condition.find('-') + 1;
-                    unsigned long long fileend = strtoull(condition.c_str() + dash, NULL, 10);
-                    unsigned long long filesize = data.FileSize();
-                    if ((fileend == 0 || (fileend == filesize && fileend >= filestart)) &&
-                          validrange == true)
-                    {
-                       if (filesize > filestart)
-                       {
-                          data.Skip(filestart);
-                          std::ostringstream contentlength;
-                          contentlength << "Content-Length: " << (filesize - filestart);
-                          headers.push_back(contentlength.str());
-                          std::ostringstream contentrange;
-                          contentrange << "Content-Range: bytes " << filestart << "-"
-                             << filesize - 1 << "/" << filesize;
-                          headers.push_back(contentrange.str());
-                          sendHead(client, 206, headers);
-                          if (sendContent == true)
-                             sendFile(client, data);
-                          continue;
-                       }
-                       else
-                       {
-                          headers.push_back("Content-Length: 0");
-                          std::ostringstream contentrange;
-                          contentrange << "Content-Range: bytes */" << filesize;
-                          headers.push_back(contentrange.str());
-                          sendHead(client, 416, headers);
-                          continue;
-                       }
-                    }
-                 }
-              }
+        if (errno == EINTR)
+           continue;
+        _error->Errno("accept", "Couldn't accept client on socket %d", sock);
+        _error->DumpErrors(std::cerr);
+        return 6;
+      }
 
-              addFileHeaders(headers, data);
-              sendHead(client, 200, headers);
-              if (sendContent == true)
-                 sendFile(client, data);
-           }
-           else if (DirectoryExists(filename) == true)
-           {
-              if (filename[filename.length()-1] == '/')
-                 sendDirectoryListing(client, filename, *m, sendContent);
-              else
-                 sendRedirect(client, 301, filename.append("/"), *m, sendContent);
-           }
-           else
-              sendError(client, 404, *m, sendContent);
-        }
+      pthread_attr_t attr;
+      if (pthread_attr_init(&attr) != 0 || pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) != 0)
+      {
+        _error->Errno("pthread_attr", "Couldn't set detach attribute for a fresh thread to handle client %d on socket %d", client, sock);
         _error->DumpErrors(std::cerr);
-        messages.clear();
-        if (closeConnection == true)
-           break;
+        close(client);
+        continue;
       }
 
-      std::clog << "CLOSE client " << client
-               << " on socket " << sock << std::endl;
-      close(client);
+      pthread_t tid;
+      // thats rather dirty, but we need to store the client socket somewhere safe
+      accepted_clients.push_front(client);
+      if (pthread_create(&tid, &attr, &handleClient, &(*accepted_clients.begin())) != 0)
+      {
+        _error->Errno("pthread_create", "Couldn't create a fresh thread to handle client %d on socket %d", client, sock);
+        _error->DumpErrors(std::cerr);
+        close(client);
+        continue;
+      }
    }
    pidfile.Close();