X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/c48eea97b93920062ea26001081d4fdf7eb967e3..b55ec4203f7a99d380903911f8839aba2a65e27e:/methods/server.cc

diff --git a/methods/server.cc b/methods/server.cc
index 82f9b4750..e403f1071 100644
--- a/methods/server.cc
+++ b/methods/server.cc
@@ -55,6 +55,7 @@ ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File,
    Minor = 0; 
    Result = 0; 
    Size = 0; 
+   JunkSize = 0;
    StartPos = 0;
    Encoding = Closes;
    HaveContent = false;
@@ -128,7 +129,7 @@ bool ServerState::HeaderLine(string Line)
 	 if (elements == 3)
 	 {
 	    Code[0] = '\0';
-	    if (Owner->Debug == true)
+	    if (Owner != NULL && Owner->Debug == true)
 	       clog << "HTTP server doesn't give Reason-Phrase for " << Result << std::endl;
 	 }
 	 else if (elements != 4)
@@ -163,14 +164,14 @@ bool ServerState::HeaderLine(string Line)
 	 Encoding = Stream;
       HaveContent = true;
 
-      // The length is already set from the Content-Range header
-      if (StartPos != 0)
-	 return true;
+      unsigned long long * SizePtr = &Size;
+      if (Result == 416)
+	 SizePtr = &JunkSize;
 
-      Size = strtoull(Val.c_str(), NULL, 10);
-      if (Size >= std::numeric_limits<unsigned long long>::max())
+      *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;
    }
@@ -187,10 +188,7 @@ bool ServerState::HeaderLine(string Line)
 
       // §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)
@@ -240,7 +238,12 @@ ServerState::ServerState(URI Srv, ServerMethod *Owner) : ServerName(Srv), TimeOu
 
 bool ServerMethod::Configuration(string Message)			/*{{{*/
 {
-   return pkgAcqMethod::Configuration(Message);
+   if (pkgAcqMethod::Configuration(Message) == false)
+      return false;
+
+   DropPrivsOrDie();
+
+   return true;
 }
 									/*}}}*/
 
@@ -308,9 +311,15 @@ 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)
 	 {
@@ -348,7 +357,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
    FailFd = File->Fd();
    FailTime = Server->Date;
 
-   if (Server->InitHashes(*File) == false)
+   if (Server->InitHashes(*File, Queue->ExpectedHashes) == false)
    {
       _error->Errno("read",_("Problem hashing file"));
       return ERROR_NOT_FROM_SERVER;
@@ -534,8 +543,10 @@ int ServerMethod::Loop()
 	    bool Result = true;
 
             // ensure we don't fetch too much
-            if (Queue->MaximumSize > 0)
-               Server->MaximumSize = Queue->MaximumSize;
+            // we could do "Server->MaximumSize = Queue->MaximumSize" here
+            // but that would break the clever pipeline messup detection
+            // so instead we use the size of the biggest item in the queue
+            Server->MaximumSize = FindMaximumObjectSizeInQueue();
 
             if (Server->HaveContent)
 	       Result = Server->RunData(File);
@@ -706,5 +717,15 @@ int ServerMethod::Loop()
    }
    
    return 0;
+}
+									/*}}}*/
+                         						/*{{{*/
+unsigned long long
+ServerMethod::FindMaximumObjectSizeInQueue() const 
+{
+   unsigned long long MaxSizeInQueue = 0;
+   for (FetchItem *I = Queue; I != 0 && I != QueueBack; I = I->Next)
+      MaxSizeInQueue = std::max(MaxSizeInQueue, I->MaximumSize);
+   return MaxSizeInQueue;
 }
 									/*}}}*/