Rename "Size" in ServerState to TotalFileSize

The variable "Size" was misleading and caused bug #1445239. To
avoid similar issues in the future, rename it to make the meaning
more obvious.

git-dch: ignore

3 files changed, 22 insertions, 16 deletions

diff --git a/methods/https.cc b/methods/https.cc
index 3a5981b58..12fc6c70f 100644
--- a/methods/https.cc
+++ b/methods/https.cc
@@ -55,10 +55,10 @@ HttpsMethod::parse_header(void *buffer, size_t size, size_t nmemb, void *userp)
    {
       if (me->Server->Result != 416 && me->Server->StartPos != 0)
 	 ;
-      else if (me->Server->Result == 416 && me->Server->Size == me->File->FileSize())
+      else if (me->Server->Result == 416 && me->Server->TotalFileSize == me->File->FileSize())
       {
          me->Server->Result = 200;
-	 me->Server->StartPos = me->Server->Size;
+	 me->Server->StartPos = me->Server->TotalFileSize;
 	 // the actual size is not important for https as curl will deal with it
 	 // by itself and e.g. doesn't bother us with transport-encoding…
 	 me->Server->JunkSize = std::numeric_limits<unsigned long long>::max();
diff --git a/methods/server.cc b/methods/server.cc
index ba0a8864b..6c05700a5 100644
--- a/methods/server.cc
+++ b/methods/server.cc
@@ -54,7 +54,7 @@ ServerState::RunHeadersResult ServerState::RunHeaders(FileFd * const File,
    Major = 0; 
    Minor = 0; 
    Result = 0; 
-   Size = 0; 
+   TotalFileSize = 0;
    JunkSize = 0;
    StartPos = 0;
    Encoding = Closes;
@@ -177,8 +177,8 @@ bool ServerState::HeaderLine(string Line)
       // On partial content (206) the Content-Length less than the real
       // size, so do not set it here but leave that to the Content-Range
       // header instead
-      if(Result != 206 && Size == 0)
-         Size = DownloadSize;
+      if(Result != 206 && TotalFileSize == 0)
+         TotalFileSize = DownloadSize;
 
       return true;
    }
@@ -194,15 +194,15 @@ bool ServerState::HeaderLine(string Line)
       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)
+      if (Result == 416 && sscanf(Val.c_str(), "bytes */%llu",&TotalFileSize) == 1)
 	 ; // we got the expected filesize which is all we wanted
-      else if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&Size) != 2)
+      else if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&TotalFileSize) != 2)
 	 return _error->Error(_("The HTTP server sent an invalid Content-Range header"));
-      if ((unsigned long long)StartPos > Size)
+      if ((unsigned long long)StartPos > TotalFileSize)
 	 return _error->Error(_("This HTTP server has broken range support"));
 
       // figure out what we will download
-      DownloadSize = Size - StartPos;
+      DownloadSize = TotalFileSize - StartPos;
       return true;
    }
 
@@ -313,7 +313,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
       struct stat SBuf;
       if (stat(Queue->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
       {
-	 if ((unsigned long long)SBuf.st_size == Server->Size)
+	 if ((unsigned long long)SBuf.st_size == Server->TotalFileSize)
 	 {
 	    // the file is completely downloaded, but was not moved
 	    if (Server->HaveContent == true)
@@ -323,7 +323,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
 	       Server->RunData(&DevNull);
 	    }
 	    Server->HaveContent = false;
-	    Server->StartPos = Server->Size;
+	    Server->StartPos = Server->TotalFileSize;
 	    Server->Result = 200;
 	 }
 	 else if (unlink(Queue->DestFile.c_str()) == 0)
@@ -349,7 +349,7 @@ ServerMethod::DealWithHeaders(FetchResult &Res)
 
    // This is some sort of 2xx 'data follows' reply
    Res.LastModified = Server->Date;
-   Res.Size = Server->Size;
+   Res.Size = Server->TotalFileSize;
    
    // Open the file
    delete File;
diff --git a/methods/server.h b/methods/server.h
index ed3cb456a..8c14282b6 100644
--- a/methods/server.h
+++ b/methods/server.h
@@ -34,10 +34,16 @@ struct ServerState
    char Code[360];
 
    // These are some statistics from the last parsed header lines
-   unsigned long long Size; // total size of the usable content (aka: the file)
-   unsigned long long DownloadSize; // size we actually download (can be smaller than Size if we have partial content)
-   unsigned long long JunkSize; // size of junk content (aka: server error pages)
+
+   // total size of the usable content (aka: the file)
+   unsigned long long TotalFileSize;
+   // size we actually download (can be smaller than Size if we have partial content)
+   unsigned long long DownloadSize;
+   // size of junk content (aka: server error pages)
+   unsigned long long JunkSize;
+   // The start of the data (for partial content)
    unsigned long long StartPos;
+
    time_t Date;
    bool HaveContent;
    enum {Chunked,Stream,Closes} Encoding;
@@ -73,7 +79,7 @@ struct ServerState
    RunHeadersResult RunHeaders(FileFd * const File, const std::string &Uri);
 
    bool Comp(URI Other) const {return Other.Host == ServerName.Host && Other.Port == ServerName.Port;};
-   virtual void Reset() {Major = 0; Minor = 0; Result = 0; Code[0] = '\0'; Size = 0; JunkSize = 0;
+   virtual void Reset() {Major = 0; Minor = 0; Result = 0; Code[0] = '\0'; TotalFileSize = 0; JunkSize = 0;
 		 StartPos = 0; Encoding = Closes; time(&Date); HaveContent = false;
 		 State = Header; Persistent = false; Pipeline = true;};
    virtual bool WriteResponse(std::string const &Data) = 0;