merge with apt/experimental

[apt.git] / methods / http.cc

diff --git a/methods/http.cc b/methods/http.cc
index b60cfeb9ed53fe3c374fe8e5808384ce5b6e2629..d2e03cfbc13352c295e13080d38c3f20a8beed73 100644 (file)
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -29,6 +29,7 @@
 
 #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>
@@ -41,6 +42,7 @@
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
+#include <climits>
 #include <iostream>
 #include <map>
 
@@ -288,6 +290,11 @@ void CircleBuf::Stats()
    clog << "Got " << InP << " in " << Diff << " at " << InP/Diff << endl;*/
 }
                                                                        /*}}}*/
+CircleBuf::~CircleBuf()
+{
+   delete [] Buf;
+   delete Hash;
+}
 
 // ServerState::ServerState - Constructor                              /*{{{*/
 // ---------------------------------------------------------------------
@@ -528,10 +535,6 @@ bool ServerState::HeaderLine(string Line)
    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())
    {
@@ -555,7 +558,7 @@ bool ServerState::HeaderLine(string Line)
       // Evil servers return no version
       if (Line[4] == '/')
       {
-        int const elements = sscanf(Line.c_str(),"HTTP/%u.%u %u%[^\n]",&Major,&Minor,&Result,Code);
+        int const elements = sscanf(Line.c_str(),"HTTP/%3u.%3u %3u%359[^\n]",&Major,&Minor,&Result,Code);
         if (elements == 3)
         {
            Code[0] = '\0';
@@ -569,7 +572,7 @@ bool ServerState::HeaderLine(string Line)
       {
         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"));
       }
 
@@ -579,7 +582,7 @@ bool ServerState::HeaderLine(string Line)
         Persistent = false;
       else
       {
-        if (Major == 1 && Minor <= 0)
+        if (Major == 1 && Minor == 0)
            Persistent = false;
         else
            Persistent = true;
@@ -597,9 +600,10 @@ bool ServerState::HeaderLine(string Line)
       // The length is already set from the Content-Range header
       if (StartPos != 0)
         return true;
-      
-      if (sscanf(Val.c_str(),"%llu",&Size) != 1)
-        return _error->Error(_("The HTTP server sent an invalid Content-Length header"));
+
+      Size = strtoull(Val.c_str(), NULL, 10);
+      if (Size == ULLONG_MAX)
+        return _error->Errno("HeaderLine", _("The HTTP server sent an invalid Content-Length header"));
       return true;
    }
 
@@ -710,7 +714,19 @@ 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
@@ -1001,31 +1017,21 @@ 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;
-      
-   // 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;
-   
-   // 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;
       }
-      lseek(File->Fd(),0,SEEK_END);
    }
    
    SetNonBlock(File->Fd(),true);
@@ -1321,7 +1327,7 @@ int HttpMethod::Loop()
                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;