delete targets data

[apt.git] / methods / http.cc

diff --git a/methods/http.cc b/methods/http.cc
index c05abc8622d8a7a7c1c7cb0b291d65b4c782c30d..ec5b1ff52ff2bd01fd699af754be2194d243bae8 100644 (file)
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -25,8 +25,11 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include <config.h>
+

 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/acquire-method.h>

+#include <apt-pkg/configuration.h>

 #include <apt-pkg/error.h>
 #include <apt-pkg/hashes.h>
 #include <apt-pkg/netrc.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/hashes.h>
 #include <apt-pkg/netrc.h>


@@ -39,10 +42,9 @@
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>

+#include <climits>

 #include <iostream>
 #include <map>
 #include <iostream>
 #include <map>

-#include <apti18n.h>
-

 
 // Internet stuff
 #include <netdb.h>
 
 // Internet stuff
 #include <netdb.h>


@@ -51,27 +53,29 @@
 #include "connect.h"
 #include "rfc2553emu.h"
 #include "http.h"
 #include "connect.h"
 #include "rfc2553emu.h"
 #include "http.h"

+
+#include <apti18n.h>

                                                                        /*}}}*/
 using namespace std;
 
 string HttpMethod::FailFile;
 int HttpMethod::FailFd = -1;
 time_t HttpMethod::FailTime = 0;
                                                                        /*}}}*/
 using namespace std;
 
 string HttpMethod::FailFile;
 int HttpMethod::FailFd = -1;
 time_t HttpMethod::FailTime = 0;

-unsigned long PipelineDepth = 10;
+unsigned long PipelineDepth = 0;

 unsigned long TimeOut = 120;
 bool AllowRedirect = false;
 bool Debug = false;
 URI Proxy;
 
 unsigned long TimeOut = 120;
 bool AllowRedirect = false;
 bool Debug = false;
 URI Proxy;
 

-unsigned long CircleBuf::BwReadLimit=0;
-unsigned long CircleBuf::BwTickReadData=0;
+unsigned long long CircleBuf::BwReadLimit=0;
+unsigned long long CircleBuf::BwTickReadData=0;

 struct timeval CircleBuf::BwReadTick={0,0};
 const unsigned int CircleBuf::BW_HZ=10;
  
 // CircleBuf::CircleBuf - Circular input buffer                                /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 struct timeval CircleBuf::BwReadTick={0,0};
 const unsigned int CircleBuf::BW_HZ=10;
  
 // CircleBuf::CircleBuf - Circular input buffer                                /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-CircleBuf::CircleBuf(unsigned long Size) : Size(Size), Hash(0)
+CircleBuf::CircleBuf(unsigned long long Size) : Size(Size), Hash(0)

 {
    Buf = new unsigned char[Size];
    Reset();
 {
    Buf = new unsigned char[Size];
    Reset();


@@ -87,7 +91,7 @@ void CircleBuf::Reset()
    InP = 0;
    OutP = 0;
    StrPos = 0;
    InP = 0;
    OutP = 0;
    StrPos = 0;

-   MaxGet = (unsigned int)-1;
+   MaxGet = (unsigned long long)-1;

    OutQueue = string();
    if (Hash != 0)
    {
    OutQueue = string();
    if (Hash != 0)
    {


@@ -102,7 +106,7 @@ void CircleBuf::Reset()
    is non-blocking.. */
 bool CircleBuf::Read(int Fd)
 {
    is non-blocking.. */
 bool CircleBuf::Read(int Fd)
 {

-   unsigned long BwReadMax;
+   unsigned long long BwReadMax;

 
    while (1)
    {
 
    while (1)
    {


@@ -117,7 +121,7 @@ bool CircleBuf::Read(int Fd)
         struct timeval now;
         gettimeofday(&now,0);
 
         struct timeval now;
         gettimeofday(&now,0);
 

-        unsigned long d = (now.tv_sec-CircleBuf::BwReadTick.tv_sec)*1000000 +
+        unsigned long long d = (now.tv_sec-CircleBuf::BwReadTick.tv_sec)*1000000 +

            now.tv_usec-CircleBuf::BwReadTick.tv_usec;
         if(d > 1000000/BW_HZ) {
            CircleBuf::BwReadTick = now;
            now.tv_usec-CircleBuf::BwReadTick.tv_usec;
         if(d > 1000000/BW_HZ) {
            CircleBuf::BwReadTick = now;


@@ -131,7 +135,7 @@ bool CircleBuf::Read(int Fd)
       }
 
       // Write the buffer segment
       }
 
       // Write the buffer segment

-      int Res;
+      ssize_t Res;

       if(CircleBuf::BwReadLimit) {
         Res = read(Fd,Buf + (InP%Size), 
                    BwReadMax > LeftRead() ? LeftRead() : BwReadMax);
       if(CircleBuf::BwReadLimit) {
         Res = read(Fd,Buf + (InP%Size), 
                    BwReadMax > LeftRead() ? LeftRead() : BwReadMax);


@@ -180,7 +184,7 @@ void CircleBuf::FillOut()
         return;
       
       // Write the buffer segment
         return;
       
       // Write the buffer segment

-      unsigned long Sz = LeftRead();
+      unsigned long long Sz = LeftRead();

       if (OutQueue.length() - StrPos < Sz)
         Sz = OutQueue.length() - StrPos;
       memcpy(Buf + (InP%Size),OutQueue.c_str() + StrPos,Sz);
       if (OutQueue.length() - StrPos < Sz)
         Sz = OutQueue.length() - StrPos;
       memcpy(Buf + (InP%Size),OutQueue.c_str() + StrPos,Sz);


@@ -214,7 +218,7 @@ bool CircleBuf::Write(int Fd)
         return true;
       
       // Write the buffer segment
         return true;
       
       // Write the buffer segment

-      int Res;
+      ssize_t Res;

       Res = write(Fd,Buf + (OutP%Size),LeftWrite());
 
       if (Res == 0)
       Res = write(Fd,Buf + (OutP%Size),LeftWrite());
 
       if (Res == 0)


@@ -240,7 +244,7 @@ bool CircleBuf::Write(int Fd)
 bool CircleBuf::WriteTillEl(string &Data,bool Single)
 {
    // We cheat and assume it is unneeded to have more than one buffer load
 bool CircleBuf::WriteTillEl(string &Data,bool Single)
 {
    // We cheat and assume it is unneeded to have more than one buffer load

-   for (unsigned long I = OutP; I < InP; I++)
+   for (unsigned long long I = OutP; I < InP; I++)

    {      
       if (Buf[I%Size] != '\n')
         continue;
    {      
       if (Buf[I%Size] != '\n')
         continue;


@@ -258,7 +262,7 @@ bool CircleBuf::WriteTillEl(string &Data,bool Single)
       Data = "";
       while (OutP < I)
       {
       Data = "";
       while (OutP < I)
       {

-        unsigned long Sz = LeftWrite();
+        unsigned long long Sz = LeftWrite();

         if (Sz == 0)
            return false;
         if (I - OutP < Sz)
         if (Sz == 0)
            return false;
         if (I - OutP < Sz)


@@ -286,6 +290,11 @@ void CircleBuf::Stats()
    clog << "Got " << InP << " in " << Diff << " at " << InP/Diff << endl;*/
 }
                                                                        /*}}}*/
    clog << "Got " << InP << " in " << Diff << " at " << InP/Diff << endl;*/
 }
                                                                        /*}}}*/

+CircleBuf::~CircleBuf()
+{
+   delete [] Buf;
+   delete Hash;
+}

 
 // ServerState::ServerState - Constructor                              /*{{{*/
 // ---------------------------------------------------------------------
 
 // ServerState::ServerState - Constructor                              /*{{{*/
 // ---------------------------------------------------------------------


@@ -402,10 +411,10 @@ ServerState::RunHeadersResult ServerState::RunHeaders()
       if (Debug == true)
         clog << Data;
       
       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;
       {
         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;
         if (HeaderLine(string(I,J)) == false)
            return RUN_HEADERS_PARSE_ERROR;
         I = J;


@@ -453,7 +462,7 @@ bool ServerState::RunData()
            return false;
                 
         // See if we are done
            return false;
                 
         // See if we are done

-        unsigned long Len = strtol(Data.c_str(),0,16);
+        unsigned long long Len = strtoull(Data.c_str(),0,16);

         if (Len == 0)
         {
            In.Limit(-1);
         if (Len == 0)
         {
            In.Limit(-1);


@@ -526,10 +535,6 @@ bool ServerState::HeaderLine(string Line)
    if (Line.empty() == true)
       return true;
 
    if (Line.empty() == true)
       return true;
 

-   // The http server might be trying to do something evil.
-   if (Line.length() >= MAXLEN)
-      return _error->Error(_("Got a single header line over %u chars"),MAXLEN);
-

    string::size_type Pos = Line.find(' ');
    if (Pos == string::npos || Pos+1 > Line.length())
    {
    string::size_type Pos = Line.find(' ');
    if (Pos == string::npos || Pos+1 > Line.length())
    {


@@ -553,15 +558,21 @@ bool ServerState::HeaderLine(string Line)
       // Evil servers return no version
       if (Line[4] == '/')
       {
       // 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/%3u.%3u %3u%359[^\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
       {
         Major = 0;
         Minor = 9;
            return _error->Error(_("The HTTP server sent an invalid reply header"));
       }
       else
       {
         Major = 0;
         Minor = 9;

-        if (sscanf(Line.c_str(),"HTTP %u%[^\n]",&Result,Code) != 2)
+        if (sscanf(Line.c_str(),"HTTP %3u%359[^\n]",&Result,Code) != 2)

            return _error->Error(_("The HTTP server sent an invalid reply header"));
       }
 
            return _error->Error(_("The HTTP server sent an invalid reply header"));
       }
 


@@ -571,7 +582,7 @@ bool ServerState::HeaderLine(string Line)
         Persistent = false;
       else
       {
         Persistent = false;
       else
       {

-        if (Major == 1 && Minor <= 0)
+        if (Major == 1 && Minor == 0)

            Persistent = false;
         else
            Persistent = true;
            Persistent = false;
         else
            Persistent = true;


@@ -589,9 +600,10 @@ bool ServerState::HeaderLine(string Line)
       // The length is already set from the Content-Range header
       if (StartPos != 0)
         return true;
       // The length is already set from the Content-Range header
       if (StartPos != 0)
         return true;

-      
-      if (sscanf(Val.c_str(),"%lu",&Size) != 1)
-        return _error->Error(_("The HTTP server sent an invalid Content-Length header"));
+
+      Size = strtoull(Val.c_str(), NULL, 10);
+      if (Size >= std::numeric_limits<unsigned long long>::max())
+        return _error->Errno("HeaderLine", _("The HTTP server sent an invalid Content-Length header"));

       return true;
    }
 
       return true;
    }
 


@@ -605,9 +617,9 @@ bool ServerState::HeaderLine(string Line)
    {
       HaveContent = true;
       
    {
       HaveContent = true;
       

-      if (sscanf(Val.c_str(),"bytes %lu-%*u/%lu",&StartPos,&Size) != 2)
+      if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&Size) != 2)

         return _error->Error(_("The HTTP server sent an invalid Content-Range header"));
         return _error->Error(_("The HTTP server sent an invalid Content-Range header"));

-      if ((unsigned)StartPos > Size)
+      if ((unsigned long long)StartPos > Size)

         return _error->Error(_("This HTTP server has broken range support"));
       return true;
    }
         return _error->Error(_("This HTTP server has broken range support"));
       return true;
    }


@@ -631,7 +643,7 @@ bool ServerState::HeaderLine(string Line)
    
    if (stringcasecmp(Tag,"Last-Modified:") == 0)
    {
    
    if (stringcasecmp(Tag,"Last-Modified:") == 0)
    {

-      if (StrToTime(Val,Date) == false)
+      if (RFC1123StrToTime(Val.c_str(), Date) == false)

         return _error->Error(_("Unknown date format"));
       return true;
    }
         return _error->Error(_("Unknown date format"));
       return true;
    }


@@ -655,7 +667,12 @@ void HttpMethod::SendReq(FetchItem *Itm,CircleBuf &Out)
 
    // The HTTP server expects a hostname with a trailing :port
    char Buf[1000];
 
    // The HTTP server expects a hostname with a trailing :port
    char Buf[1000];

-   string ProperHost = Uri.Host;
+   string ProperHost;
+
+   if (Uri.Host.find(':') != string::npos)
+      ProperHost = '[' + Uri.Host + ']';
+   else
+      ProperHost = Uri.Host;

    if (Uri.Port != 0)
    {
       sprintf(Buf,":%u",Uri.Port);
    if (Uri.Port != 0)
    {
       sprintf(Buf,":%u",Uri.Port);


@@ -673,8 +690,12 @@ void HttpMethod::SendReq(FetchItem *Itm,CircleBuf &Out)
       pass it on, HTTP/1.1 says the connection should default to keep alive
       and we expect the proxy to do this */
    if (Proxy.empty() == true || Proxy.Host.empty())
       pass it on, HTTP/1.1 says the connection should default to keep alive
       and we expect the proxy to do this */
    if (Proxy.empty() == true || Proxy.Host.empty())

+   {
+      // see LP bugs #1003633 and #1086997. The "+" is encoded as a workaround
+      // for a amazon S3 bug

       sprintf(Buf,"GET %s HTTP/1.1\r\nHost: %s\r\nConnection: keep-alive\r\n",
       sprintf(Buf,"GET %s HTTP/1.1\r\nHost: %s\r\nConnection: keep-alive\r\n",

-             QuoteString(Uri.Path,"~").c_str(),ProperHost.c_str());
+             QuoteString(Uri.Path,"+~ ").c_str(),ProperHost.c_str());
+   }

    else
    {
       /* Generate a cache control header if necessary. We place a max
    else
    {
       /* Generate a cache control header if necessary. We place a max


@@ -702,7 +723,19 @@ void HttpMethod::SendReq(FetchItem *Itm,CircleBuf &Out)
       }
    }
 
       }
    }
 

-   
+   // If we ask for uncompressed files servers might respond with content-
+   // negotation which lets us end up with compressed files we do not support,
+   // see 657029, 657560 and co, so if we have no extension on the request
+   // ask for text only. As a sidenote: If there is nothing to negotate servers
+   // seem to be nice and ignore it.
+   if (_config->FindB("Acquire::http::SendAccept", true) == true)
+   {
+      size_t const filepos = Itm->Uri.find_last_of('/');
+      string const file = Itm->Uri.substr(filepos + 1);
+      if (flExtension(file) == file)
+        strcat(Buf,"Accept: text/*\r\n");
+   }
+

    string Req = Buf;
 
    // Check for a partial file
    string Req = Buf;
 
    // Check for a partial file


@@ -710,7 +743,7 @@ void HttpMethod::SendReq(FetchItem *Itm,CircleBuf &Out)
    if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
    {
       // In this case we send an if-range query with a range header
    if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
    {
       // In this case we send an if-range query with a range header

-      sprintf(Buf,"Range: bytes=%li-\r\nIf-Range: %s\r\n",(long)SBuf.st_size - 1,
+      sprintf(Buf,"Range: bytes=%lli-\r\nIf-Range: %s\r\n",(long long)SBuf.st_size - 1,

              TimeRFC1123(SBuf.st_mtime).c_str());
       Req += Buf;
    }
              TimeRFC1123(SBuf.st_mtime).c_str());
       Req += Buf;
    }


@@ -734,7 +767,7 @@ void HttpMethod::SendReq(FetchItem *Itm,CircleBuf &Out)
           Base64Encode(Uri.User + ":" + Uri.Password) + "\r\n";
    }
    Req += "User-Agent: " + _config->Find("Acquire::http::User-Agent",
           Base64Encode(Uri.User + ":" + Uri.Password) + "\r\n";
    }
    Req += "User-Agent: " + _config->Find("Acquire::http::User-Agent",

-               "Debian APT-HTTP/1.3 ("VERSION")") + "\r\n\r\n";
+               "Debian APT-HTTP/1.3 (" PACKAGE_VERSION ")") + "\r\n\r\n";

    
    if (Debug == true)
       cerr << Req << endl;
    
    if (Debug == true)
       cerr << Req << endl;


@@ -772,9 +805,10 @@ bool HttpMethod::Go(bool ToFile,ServerState *Srv)
    
    if (Srv->In.WriteSpace() == true && ToFile == true && FileFD != -1)
       FD_SET(FileFD,&wfds);
    
    if (Srv->In.WriteSpace() == true && ToFile == true && FileFD != -1)
       FD_SET(FileFD,&wfds);

-   
+

    // Add stdin
    // 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;
          
    // Figure out the max fd
    int MaxFd = FileFD;


@@ -914,13 +948,7 @@ bool HttpMethod::ServerDie(ServerState *Srv)
 // HttpMethod::DealWithHeaders - Handle the retrieved header data      /*{{{*/
 // ---------------------------------------------------------------------
 /* We look at the header data we got back from the server and decide what
 // HttpMethod::DealWithHeaders - Handle the retrieved header data      /*{{{*/
 // ---------------------------------------------------------------------
 /* We look at the header data we got back from the server and decide what

-   to do. Returns 
-     0 - File is open,
-     1 - IMS hit
-     3 - Unrecoverable error 
-     4 - Error with error content page
-     5 - Unrecoverable non-server error (close the connection) 
-     6 - Try again with a new or changed URI
+   to do. Returns DealWithHeadersResult (see http.h for details).

  */
 HttpMethod::DealWithHeadersResult
 HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
  */
 HttpMethod::DealWithHeadersResult
 HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)


@@ -947,10 +975,24 @@ HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
            && Srv->Result != 304    // Not Modified
            && Srv->Result != 306))  // (Not part of HTTP/1.1, reserved)
    {
            && 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)
+      {
+        URI Uri = Queue->Uri;
+        if (Uri.Host.empty() == false)
+            NextURI = URI::SiteOnly(Uri);
+        else
+           NextURI.clear();
+        NextURI.append(DeQuoteString(Srv->Location));
+        return TRY_AGAIN_OR_REDIRECT;
+      }
+      else

       {
       {

-         NextURI = Srv->Location;
-         return TRY_AGAIN_OR_REDIRECT;
+         NextURI = DeQuoteString(Srv->Location);
+         URI tmpURI = NextURI;
+         // Do not allow a redirection to switch protocol
+         if (tmpURI.Access == "http")
+            return TRY_AGAIN_OR_REDIRECT;

       }
       /* else pass through for error message */
    }
       }
       /* else pass through for error message */
    }


@@ -959,6 +1001,9 @@ HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
       failure */
    if (Srv->Result < 200 || Srv->Result >= 300)
    {
       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;
       _error->Error("%u %s",Srv->Result,Srv->Code);
       if (Srv->HaveContent == true)
         return ERROR_WITH_CONTENT_PAGE;


@@ -979,31 +1024,21 @@ HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
    FailFile.c_str();   // Make sure we dont do a malloc in the signal handler
    FailFd = File->Fd();
    FailTime = Srv->Date;
    FailFile.c_str();   // Make sure we dont do a malloc in the signal handler
    FailFd = File->Fd();
    FailTime = Srv->Date;

-      
-   // Set the expected size
-   if (Srv->StartPos >= 0)
-   {
-      Res.ResumePoint = Srv->StartPos;
-      if (ftruncate(File->Fd(),Srv->StartPos) < 0)
-        _error->Errno("ftruncate", _("Failed to truncate file"));
-   }
-      
-   // Set the start point
-   lseek(File->Fd(),0,SEEK_END);

 
    delete Srv->In.Hash;
    Srv->In.Hash = new Hashes;
 
    delete Srv->In.Hash;
    Srv->In.Hash = new Hashes;

-   
-   // Fill the Hash if the file is non-empty (resume)
-   if (Srv->StartPos > 0)
+
+   // Set the expected size and read file for the hashes
+   if (Srv->StartPos >= 0)

    {
    {

-      lseek(File->Fd(),0,SEEK_SET);
-      if (Srv->In.Hash->AddFD(File->Fd(),Srv->StartPos) == false)
+      Res.ResumePoint = Srv->StartPos;
+      File->Truncate(Srv->StartPos);
+
+      if (Srv->In.Hash->AddFD(*File,Srv->StartPos) == false)

       {
         _error->Errno("read",_("Problem hashing file"));
         return ERROR_NOT_FROM_SERVER;
       }
       {
         _error->Errno("read",_("Problem hashing file"));
         return ERROR_NOT_FROM_SERVER;
       }

-      lseek(File->Fd(),0,SEEK_END);

    }
    
    SetNonBlock(File->Fd(),true);
    }
    
    SetNonBlock(File->Fd(),true);


@@ -1110,7 +1145,13 @@ int HttpMethod::Loop()
          do a WaitFd above.. Otherwise the FD is closed. */
       int Result = Run(true);
       if (Result != -1 && (Result != 0 || Queue == 0))
          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;
 
       if (Queue == 0)
         continue;


@@ -1293,13 +1334,13 @@ int HttpMethod::Loop()
                after the same URI is seen twice in a queue item. */
             StringVector &R = Redirected[Queue->DestFile];
             bool StopRedirects = false;
                after the same URI is seen twice in a queue item. */
             StringVector &R = Redirected[Queue->DestFile];
             bool StopRedirects = false;

-            if (R.size() == 0)
+            if (R.empty() == true)

                R.push_back(Queue->Uri);
             else if (R[0] == "STOP" || R.size() > 10)
                StopRedirects = true;
             else
             {
                R.push_back(Queue->Uri);
             else if (R[0] == "STOP" || R.size() > 10)
                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";
                   if (Queue->Uri == *I)
                   {
                      R[0] = "STOP";


@@ -1346,9 +1387,10 @@ bool HttpMethod::AutoDetectProxy()
    pid_t Process = ExecFork();
    if (Process == 0)
    {
    pid_t Process = ExecFork();
    if (Process == 0)
    {

+      close(Pipes[0]);

       dup2(Pipes[1],STDOUT_FILENO);
       SetCloseExec(STDOUT_FILENO,false);
       dup2(Pipes[1],STDOUT_FILENO);
       SetCloseExec(STDOUT_FILENO,false);

-      
+

       const char *Args[2];
       Args[0] = AutoDetectProxyCmd.c_str();
       Args[1] = 0;
       const char *Args[2];
       Args[0] = AutoDetectProxyCmd.c_str();
       Args[1] = 0;


@@ -1358,10 +1400,18 @@ bool HttpMethod::AutoDetectProxy()
    }
    char buf[512];
    int InFd = Pipes[0];
    }
    char buf[512];
    int InFd = Pipes[0];

-   if (read(InFd, buf, sizeof(buf)) < 0)
+   close(Pipes[1]);
+   int res = read(InFd, buf, sizeof(buf)-1);
+   ExecWait(Process, "ProxyAutoDetect", true);
+
+   if (res < 0)

       return _error->Errno("read", "Failed to read");
       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;
 
    if (Debug)
       clog << "auto detect command returned: '" << buf << "'" << endl;
 


@@ -1372,15 +1422,4 @@ 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();
-}
-