* debian/apt.symbols:

[apt.git] / methods / http.h

diff --git a/methods/http.h b/methods/http.h
index 07a65d702b555e4569f7535332fd9d4634aff1bc..6302807c5e743fcfa2a764eaf462906596ec1f0d 100644 (file)
--- a/methods/http.h
+++ b/methods/http.h
@@ -1,9 +1,9 @@
 // -*- mode: cpp; mode: fold -*-
-// Description                                                         /*{{{*/// $Id: http.h,v 1.10 2001/03/06 07:15:29 jgg Exp $
-// $Id: http.h,v 1.10 2001/03/06 07:15:29 jgg Exp $
+// Description                                                         /*{{{*/// $Id: http.h,v 1.12 2002/04/18 05:09:38 jgg Exp $
+// $Id: http.h,v 1.12 2002/04/18 05:09:38 jgg Exp $
 /* ######################################################################
 
-   HTTP Aquire Method - This is the HTTP aquire method for APT.
+   HTTP Acquire Method - This is the HTTP aquire method for APT.
 
    ##################################################################### */
                                                                        /*}}}*/
@@ -13,6 +13,11 @@
 
 #define MAXLEN 360
 
+#include <apt-pkg/hashes.h>
+
+using std::cout;
+using std::endl;
+
 class HttpMethod;
 
 class CircleBuf
@@ -26,14 +31,19 @@ class CircleBuf
    unsigned long MaxGet;
    struct timeval Start;
    
-   unsigned long LeftRead()
+   static unsigned long BwReadLimit;
+   static unsigned long BwTickReadData;
+   static struct timeval BwReadTick;
+   static const unsigned int BW_HZ;
+
+   unsigned long LeftRead() const
    {
       unsigned long Sz = Size - (InP - OutP);
       if (Sz > Size - (InP%Size))
         Sz = Size - (InP%Size);
       return Sz;
    }
-   unsigned long LeftWrite()
+   unsigned long LeftWrite() const
    {
       unsigned long Sz = InP - OutP;
       if (InP > MaxGet)
@@ -58,19 +68,19 @@ class CircleBuf
    
    // Control the write limit
    void Limit(long Max) {if (Max == -1) MaxGet = 0-1; else MaxGet = OutP + Max;}   
-   bool IsLimit() {return MaxGet == OutP;};
-   void Print() {cout << MaxGet << ',' << OutP << endl;};
+   bool IsLimit() const {return MaxGet == OutP;};
+   void Print() const {cout << MaxGet << ',' << OutP << endl;};
 
    // Test for free space in the buffer
-   bool ReadSpace() {return Size - (InP - OutP) > 0;};
-   bool WriteSpace() {return InP - OutP > 0;};
+   bool ReadSpace() const {return Size - (InP - OutP) > 0;};
+   bool WriteSpace() const {return InP - OutP > 0;};
 
    // Dump everything
    void Reset();
    void Stats();
 
    CircleBuf(unsigned long Size);
-   ~CircleBuf() {delete [] Buf;};
+   ~CircleBuf() {delete [] Buf; delete Hash;};
 };
 
 struct ServerState
@@ -89,6 +99,7 @@ struct ServerState
    enum {Chunked,Stream,Closes} Encoding;
    enum {Header, Data} State;
    bool Persistent;
+   string Location;
    
    // This is a Persistent attribute of the server itself.
    bool Pipeline;
@@ -102,11 +113,23 @@ struct ServerState
    URI ServerName;
   
    bool HeaderLine(string Line);
-   bool Comp(URI Other) {return Other.Host == ServerName.Host && Other.Port == ServerName.Port;};
+   bool Comp(URI Other) const {return Other.Host == ServerName.Host && Other.Port == ServerName.Port;};
    void Reset() {Major = 0; Minor = 0; Result = 0; Size = 0; StartPos = 0;
                  Encoding = Closes; time(&Date); ServerFd = -1; 
                  Pipeline = true;};
-   int RunHeaders();
+
+   /** \brief Result of the header acquire */
+   enum RunHeadersResult {
+      /** \brief Header ok */
+      RUN_HEADERS_OK,
+      /** \brief IO error while retrieving */
+      RUN_HEADERS_IO_ERROR,
+      /** \brief Parse error after retrieving */
+      RUN_HEADERS_PARSE_ERROR,
+   };
+   /** \brief Get the headers before the data */
+   RunHeadersResult RunHeaders();
+   /** \brief Transfer the data from the socket */
    bool RunData();
    
    bool Open();
@@ -122,9 +145,28 @@ class HttpMethod : public pkgAcqMethod
    bool Go(bool ToFile,ServerState *Srv);
    bool Flush(ServerState *Srv);
    bool ServerDie(ServerState *Srv);
-   int DealWithHeaders(FetchResult &Res,ServerState *Srv);
 
-   virtual bool Fetch(FetchItem *);
+   /** \brief Result of the header parsing */
+   enum DealWithHeadersResult { 
+      /** \brief The file is open and ready */
+      FILE_IS_OPEN,
+      /** \brief We got a IMS hit, the file has not changed */
+      IMS_HIT,
+      /** \brief The server reported a unrecoverable error */
+      ERROR_UNRECOVERABLE,
+      /** \brief The server reported a error with a error content page */
+      ERROR_WITH_CONTENT_PAGE,
+      /** \brief A error on the client side */
+      ERROR_NOT_FROM_SERVER,
+      /** \brief A redirect or retry request */
+      TRY_AGAIN_OR_REDIRECT 
+   };
+   /** \brief Handle the retrieved header data */
+   DealWithHeadersResult DealWithHeaders(FetchResult &Res,ServerState *Srv);
+
+   /** \brief Try to AutoDetect the proxy */
+   bool AutoDetectProxy();
+
    virtual bool Configuration(string Message);
    
    // In the event of a fatal signal this file will be closed and timestamped.
@@ -132,9 +174,15 @@ class HttpMethod : public pkgAcqMethod
    static int FailFd;
    static time_t FailTime;
    static void SigTerm(int);
+
+   protected:
+   virtual bool Fetch(FetchItem *);
    
+   string NextURI;
+   string AutoDetectProxyCmd;
+
    public:
-   friend class ServerState;
+   friend struct ServerState;
 
    FileFd *File;
    ServerState *Server;
@@ -148,6 +196,4 @@ class HttpMethod : public pkgAcqMethod
    };
 };
 
-URI Proxy;
-
 #endif