dispose http(s) 416 error page as non-content

[ntk/apt.git] / methods / server.cc

diff --git a/methods/server.cc b/methods/server.cc
index ef90c80..cb0341d 100644 (file)
--- a/methods/server.cc
+++ b/methods/server.cc
@@ -10,32 +10,27 @@
 // Include Files                                                       /*{{{*/
 #include <config.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/fileutl.h>
+#include <apt-pkg/strutl.h>
 
-#include <fcntl.h>
+#include <ctype.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/time.h>
+#include <time.h>
 #include <unistd.h>
-#include <signal.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <climits>
 #include <iostream>
+#include <limits>
 #include <map>
+#include <string>
+#include <vector>
 
-// Internet stuff
-#include <netdb.h>
-
-#include "config.h"
-#include "connect.h"
-#include "rfc2553emu.h"
-#include "http.h"
+#include "server.h"
 
 #include <apti18n.h>
                                                                        /*}}}*/
@@ -49,7 +44,8 @@ time_t ServerMethod::FailTime = 0;
 // ---------------------------------------------------------------------
 /* Returns 0 if things are OK, 1 if an IO error occurred and 2 if a header
    parse error occurred */
-ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File)
+ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File,
+                                                      const std::string &Uri)
 {
    State = Header;
    
@@ -59,6 +55,7 @@ ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File)
    Minor = 0; 
    Result = 0; 
    Size = 0; 
+   JunkSize = 0;
    StartPos = 0;
    Encoding = Closes;
    HaveContent = false;
@@ -71,7 +68,7 @@ ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File)
         continue;
 
       if (Owner->Debug == true)
-        clog << Data;
+        clog << "Answer for: " << Uri << endl << Data;
       
       for (string::const_iterator I = Data.begin(); I < Data.end(); ++I)
       {
@@ -119,10 +116,10 @@ bool ServerState::HeaderLine(string Line)
    string::size_type Pos2 = Pos;
    while (Pos2 < Line.length() && isspace(Line[Pos2]) != 0)
       Pos2++;
-      
+
    string Tag = string(Line,0,Pos);
    string Val = string(Line,Pos2);
-   
+
    if (stringcasecmp(Tag.c_str(),Tag.c_str()+4,"HTTP") == 0)
    {
       // Evil servers return no version
@@ -159,22 +156,22 @@ bool ServerState::HeaderLine(string Line)
       }
 
       return true;
-   }      
-      
+   }
+
    if (stringcasecmp(Tag,"Content-Length:") == 0)
    {
       if (Encoding == Closes)
         Encoding = Stream;
       HaveContent = true;
-      
-      // The length is already set from the Content-Range header
-      if (StartPos != 0)
-        return true;
 
-      Size = strtoull(Val.c_str(), NULL, 10);
-      if (Size >= std::numeric_limits<unsigned long long>::max())
+      unsigned long long * SizePtr = &Size;
+      if (Result == 416)
+        SizePtr = &JunkSize;
+
+      *SizePtr = strtoull(Val.c_str(), NULL, 10);
+      if (*SizePtr >= std::numeric_limits<unsigned long long>::max())
         return _error->Errno("HeaderLine", _("The HTTP server sent an invalid Content-Length header"));
-      else if (Size == 0)
+      else if (*SizePtr == 0)
         HaveContent = false;
       return true;
    }
@@ -184,29 +181,26 @@ bool ServerState::HeaderLine(string Line)
       HaveContent = true;
       return true;
    }
-   
+
    if (stringcasecmp(Tag,"Content-Range:") == 0)
    {
       HaveContent = true;
 
       // §14.16 says 'byte-range-resp-spec' should be a '*' in case of 416
       if (Result == 416 && sscanf(Val.c_str(), "bytes */%llu",&Size) == 1)
-      {
-        StartPos = 1; // ignore Content-Length, it would override Size
-        HaveContent = false;
-      }
+        ; // we got the expected filesize which is all we wanted
       else if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&Size) != 2)
         return _error->Error(_("The HTTP server sent an invalid Content-Range header"));
       if ((unsigned long long)StartPos > Size)
         return _error->Error(_("This HTTP server has broken range support"));
       return true;
    }
-   
+
    if (stringcasecmp(Tag,"Transfer-Encoding:") == 0)
    {
       HaveContent = true;
       if (stringcasecmp(Val,"chunked") == 0)
-        Encoding = Chunked;      
+        Encoding = Chunked;
       return true;
    }
 
@@ -218,7 +212,7 @@ bool ServerState::HeaderLine(string Line)
         Persistent = true;
       return true;
    }
-   
+
    if (stringcasecmp(Tag,"Last-Modified:") == 0)
    {
       if (RFC1123StrToTime(Val.c_str(), Date) == false)
@@ -312,9 +306,15 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
         if ((unsigned long long)SBuf.st_size == Server->Size)
         {
            // the file is completely downloaded, but was not moved
+           if (Server->HaveContent == true)
+           {
+              // Send to error page to dev/null
+              FileFd DevNull("/dev/null",FileFd::WriteExists);
+              Server->RunData(&DevNull);
+           }
+           Server->HaveContent = false;
            Server->StartPos = Server->Size;
            Server->Result = 200;
-           Server->HaveContent = false;
         }
         else if (unlink(Queue->DestFile.c_str()) == 0)
         {
@@ -413,7 +413,7 @@ bool ServerMethod::Fetch(FetchItem *)
    }
    
    return true;
-};
+}
                                                                        /*}}}*/
 // ServerMethod::Loop - Main loop                                      /*{{{*/
 int ServerMethod::Loop()
@@ -483,7 +483,7 @@ int ServerMethod::Loop()
       Fetch(0);
       
       // Fetch the next URL header data from the server.
-      switch (Server->RunHeaders(File))
+      switch (Server->RunHeaders(File, Queue->Uri))
       {
         case ServerState::RUN_HEADERS_OK:
         break;