cppcheck complains about some possible speed improvements which could be

[apt.git] / methods / http.cc

diff --git a/methods/http.cc b/methods/http.cc
index 5fdc62696d2b2ca46116dfedafb06415051a8935..65a0cbbb7f3da99d2a40bd681a0ed9880f3cb1df 100644 (file)
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -402,10 +402,10 @@ ServerState::RunHeadersResult ServerState::RunHeaders()
       if (Debug == true)
         clog << Data;
       
-      for (string::const_iterator I = Data.begin(); I < Data.end(); I++)
+      for (string::const_iterator I = Data.begin(); I < Data.end(); ++I)
       {
         string::const_iterator J = I;
-        for (; J != Data.end() && *J != '\n' && *J != '\r';J++);
+        for (; J != Data.end() && *J != '\n' && *J != '\r'; ++J);
         if (HeaderLine(string(I,J)) == false)
            return RUN_HEADERS_PARSE_ERROR;
         I = J;
@@ -553,8 +553,14 @@ bool ServerState::HeaderLine(string Line)
       // Evil servers return no version
       if (Line[4] == '/')
       {
-        if (sscanf(Line.c_str(),"HTTP/%u.%u %u%[^\n]",&Major,&Minor,
-                   &Result,Code) != 4)
+        int const elements = sscanf(Line.c_str(),"HTTP/%u.%u %u%[^\n]",&Major,&Minor,&Result,Code);
+        if (elements == 3)
+        {
+           Code[0] = '\0';
+           if (Debug == true)
+              clog << "HTTP server doesn't give Reason-Phrase for " << Result << std::endl;
+        }
+        else if (elements != 4)
            return _error->Error(_("The HTTP server sent an invalid reply header"));
       }
       else
@@ -772,9 +778,10 @@ bool HttpMethod::Go(bool ToFile,ServerState *Srv)
    
    if (Srv->In.WriteSpace() == true && ToFile == true && FileFD != -1)
       FD_SET(FileFD,&wfds);
-   
+
    // Add stdin
-   FD_SET(STDIN_FILENO,&rfds);
+   if (_config->FindB("Acquire::http::DependOnSTDIN", true) == true)
+      FD_SET(STDIN_FILENO,&rfds);
          
    // Figure out the max fd
    int MaxFd = FileFD;
@@ -941,9 +948,25 @@ HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
            && Srv->Result != 304    // Not Modified
            && Srv->Result != 306))  // (Not part of HTTP/1.1, reserved)
    {
-      if (!Srv->Location.empty())
+      if (Srv->Location.empty() == true);
+      else if (Srv->Location[0] == '/' && Queue->Uri.empty() == false)
       {
-         NextURI = Srv->Location;
+        URI Uri = Queue->Uri;
+        if (Uri.Host.empty() == false)
+        {
+           if (Uri.Port != 0)
+              strprintf(NextURI, "http://%s:%u", Uri.Host.c_str(), Uri.Port);
+           else
+              NextURI = "http://" + Uri.Host;
+        }
+        else
+           NextURI.clear();
+        NextURI.append(DeQuoteString(Srv->Location));
+        return TRY_AGAIN_OR_REDIRECT;
+      }
+      else
+      {
+         NextURI = DeQuoteString(Srv->Location);
          return TRY_AGAIN_OR_REDIRECT;
       }
       /* else pass through for error message */
@@ -953,6 +976,9 @@ HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
       failure */
    if (Srv->Result < 200 || Srv->Result >= 300)
    {
+      char err[255];
+      snprintf(err,sizeof(err)-1,"HttpError%i",Srv->Result);
+      SetFailReason(err);
       _error->Error("%u %s",Srv->Result,Srv->Code);
       if (Srv->HaveContent == true)
         return ERROR_WITH_CONTENT_PAGE;
@@ -1104,7 +1130,13 @@ int HttpMethod::Loop()
          do a WaitFd above.. Otherwise the FD is closed. */
       int Result = Run(true);
       if (Result != -1 && (Result != 0 || Queue == 0))
-        return 100;
+      {
+        if(FailReason.empty() == false ||
+           _config->FindB("Acquire::http::DependOnSTDIN", true) == true)
+           return 100;
+        else
+           return 0;
+      }
 
       if (Queue == 0)
         continue;
@@ -1293,7 +1325,7 @@ int HttpMethod::Loop()
                StopRedirects = true;
             else
             {
-               for (StringVectorIterator I = R.begin(); I != R.end(); I++)
+               for (StringVectorIterator I = R.begin(); I != R.end(); ++I)
                   if (Queue->Uri == *I)
                   {
                      R[0] = "STOP";
@@ -1340,9 +1372,10 @@ bool HttpMethod::AutoDetectProxy()
    pid_t Process = ExecFork();
    if (Process == 0)
    {
+      close(Pipes[0]);
       dup2(Pipes[1],STDOUT_FILENO);
       SetCloseExec(STDOUT_FILENO,false);
-      
+
       const char *Args[2];
       Args[0] = AutoDetectProxyCmd.c_str();
       Args[1] = 0;
@@ -1352,10 +1385,18 @@ bool HttpMethod::AutoDetectProxy()
    }
    char buf[512];
    int InFd = Pipes[0];
-   if (read(InFd, buf, sizeof(buf)) < 0)
+   close(Pipes[1]);
+   int res = read(InFd, buf, sizeof(buf));
+   ExecWait(Process, "ProxyAutoDetect", true);
+
+   if (res < 0)
       return _error->Errno("read", "Failed to read");
-   ExecWait(Process, "ProxyAutoDetect");
-   
+   if (res == 0)
+      return _error->Warning("ProxyAutoDetect returned no data");
+
+   // add trailing \0
+   buf[res] = 0;
+
    if (Debug)
       clog << "auto detect command returned: '" << buf << "'" << endl;
 
@@ -1366,15 +1407,4 @@ bool HttpMethod::AutoDetectProxy()
 }
                                                                        /*}}}*/
 
-int main()
-{
-   setlocale(LC_ALL, "");
-   // ignore SIGPIPE, this can happen on write() if the socket
-   // closes the connection (this is dealt with via ServerDie())
-   signal(SIGPIPE, SIG_IGN);
-
-   HttpMethod Mth;
-   return Mth.Loop();
-}
-