* added a callback to pkgMarkUsed() so that frontend can extend the root-set of the...

[apt.git] / apt-pkg / acquire-method.cc

diff --git a/apt-pkg/acquire-method.cc b/apt-pkg/acquire-method.cc
index 13b11c8dbc0d61bc28aba25b0be00ee0b42b0019..04c62eaaa3997a06002b77c1ec863a790f1de701 100644 (file)
--- a/apt-pkg/acquire-method.cc
+++ b/apt-pkg/acquire-method.cc
@@ -1,12 +1,12 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: acquire-method.cc,v 1.20 1999/08/04 02:39:13 jgg Exp $
+// $Id: acquire-method.cc,v 1.27.2.1 2003/12/24 23:09:17 mdz Exp $
 /* ######################################################################
 
    Acquire Method
 
    This is a skeleton class that implements most of the functionality
-   of a method and some usefull functions to make method implementation
+   of a method and some useful functions to make method implementation
    simpler. The methods all derive this and specialize it. The most
    complex implementation is the http method which needs to provide
    pipelining, it runs the message engine at the same time it is 
@@ -23,11 +23,17 @@
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/hashes.h>
 
+#include <iostream>
+#include <stdarg.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <sys/signal.h>
                                                                        /*}}}*/
 
+using namespace std;
+
 // AcqMethod::pkgAcqMethod - Constructor                               /*{{{*/
 // ---------------------------------------------------------------------
 /* This constructs the initialization text */
@@ -49,6 +55,12 @@ pkgAcqMethod::pkgAcqMethod(const char *Ver,unsigned long Flags)
 
    if ((Flags & LocalOnly) == LocalOnly)
       strcat(End,"Local-Only: true\n");
+
+   if ((Flags & NeedsCleanup) == NeedsCleanup)
+      strcat(End,"Needs-Cleanup: true\n");
+
+   if ((Flags & Removable) == Removable)
+      strcat(End,"Removable: true\n");
    strcat(End,"\n");
 
    if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
@@ -78,7 +90,7 @@ void pkgAcqMethod::Fail(bool Transient)
 void pkgAcqMethod::Fail(string Err,bool Transient)
 {
    // Strip out junk from the error messages
-   for (char *I = Err.begin(); I != Err.end(); I++)
+   for (string::iterator I = Err.begin(); I != Err.end(); I++)
    {
       if (*I == '\r') 
         *I = ' ';
@@ -89,8 +101,9 @@ void pkgAcqMethod::Fail(string Err,bool Transient)
    char S[1024];
    if (Queue != 0)
    {
-      snprintf(S,sizeof(S),"400 URI Failure\nURI: %s\n"
-              "Message: %s\n",Queue->Uri.c_str(),Err.c_str());
+      snprintf(S,sizeof(S)-50,"400 URI Failure\nURI: %s\n"
+              "Message: %s %s\n",Queue->Uri.c_str(),Err.c_str(),
+              FailExtra.c_str());
 
       // Dequeue
       FetchItem *Tmp = Queue;
@@ -100,8 +113,9 @@ void pkgAcqMethod::Fail(string Err,bool Transient)
         QueueBack = Queue;
    }
    else
-      snprintf(S,sizeof(S),"400 URI Failure\nURI: <UNKNOWN>\n"
-              "Message: %s\n",Err.c_str());
+      snprintf(S,sizeof(S)-50,"400 URI Failure\nURI: <UNKNOWN>\n"
+              "Message: %s %s\n",Err.c_str(),
+              FailExtra.c_str());
       
    // Set the transient flag 
    if (Transient == true)
@@ -126,14 +140,14 @@ void pkgAcqMethod::URIStart(FetchResult &Res)
    
    End += snprintf(S,sizeof(S),"200 URI Start\nURI: %s\n",Queue->Uri.c_str());
    if (Res.Size != 0)
-      End += snprintf(End,sizeof(S) - (End - S),"Size: %lu\n",Res.Size);
+      End += snprintf(End,sizeof(S)-4 - (End - S),"Size: %lu\n",Res.Size);
    
    if (Res.LastModified != 0)
-      End += snprintf(End,sizeof(S) - (End - S),"Last-Modified: %s\n",
+      End += snprintf(End,sizeof(S)-4 - (End - S),"Last-Modified: %s\n",
                      TimeRFC1123(Res.LastModified).c_str());
    
    if (Res.ResumePoint != 0)
-      End += snprintf(End,sizeof(S) - (End - S),"Resume-Point: %lu\n",
+      End += snprintf(End,sizeof(S)-4 - (End - S),"Resume-Point: %lu\n",
                      Res.ResumePoint);
       
    strcat(End,"\n");
@@ -155,20 +169,27 @@ void pkgAcqMethod::URIDone(FetchResult &Res, FetchResult *Alt)
    End += snprintf(S,sizeof(S),"201 URI Done\nURI: %s\n",Queue->Uri.c_str());
 
    if (Res.Filename.empty() == false)
-      End += snprintf(End,sizeof(S) - (End - S),"Filename: %s\n",Res.Filename.c_str());
+      End += snprintf(End,sizeof(S)-50 - (End - S),"Filename: %s\n",Res.Filename.c_str());
    
    if (Res.Size != 0)
-      End += snprintf(End,sizeof(S) - (End - S),"Size: %lu\n",Res.Size);
+      End += snprintf(End,sizeof(S)-50 - (End - S),"Size: %lu\n",Res.Size);
    
    if (Res.LastModified != 0)
-      End += snprintf(End,sizeof(S) - (End - S),"Last-Modified: %s\n",
+      End += snprintf(End,sizeof(S)-50 - (End - S),"Last-Modified: %s\n",
                      TimeRFC1123(Res.LastModified).c_str());
 
    if (Res.MD5Sum.empty() == false)
-      End += snprintf(End,sizeof(S) - (End - S),"MD5-Hash: %s\n",Res.MD5Sum.c_str());
+      End += snprintf(End,sizeof(S)-50 - (End - S),"MD5-Hash: %s\n",Res.MD5Sum.c_str());
+   if (Res.SHA1Sum.empty() == false)
+      End += snprintf(End,sizeof(S)-50 - (End - S),"SHA1-Hash: %s\n",Res.SHA1Sum.c_str());
+   if (Res.GPGVOutput.size() > 0)
+      End += snprintf(End,sizeof(S)-50 - (End - S),"GPGVOutput:\n");     
+   for (vector<string>::iterator I = Res.GPGVOutput.begin();
+      I != Res.GPGVOutput.end(); I++)
+      End += snprintf(End,sizeof(S)-50 - (End - S), " %s\n", (*I).c_str());
 
    if (Res.ResumePoint != 0)
-      End += snprintf(End,sizeof(S) - (End - S),"Resume-Point: %lu\n",
+      End += snprintf(End,sizeof(S)-50 - (End - S),"Resume-Point: %lu\n",
                      Res.ResumePoint);
 
    if (Res.IMSHit == true)
@@ -178,18 +199,21 @@ void pkgAcqMethod::URIDone(FetchResult &Res, FetchResult *Alt)
    if (Alt != 0)
    {
       if (Alt->Filename.empty() == false)
-        End += snprintf(End,sizeof(S) - (End - S),"Alt-Filename: %s\n",Alt->Filename.c_str());
+        End += snprintf(End,sizeof(S)-50 - (End - S),"Alt-Filename: %s\n",Alt->Filename.c_str());
       
       if (Alt->Size != 0)
-        End += snprintf(End,sizeof(S) - (End - S),"Alt-Size: %lu\n",Alt->Size);
+        End += snprintf(End,sizeof(S)-50 - (End - S),"Alt-Size: %lu\n",Alt->Size);
       
       if (Alt->LastModified != 0)
-        End += snprintf(End,sizeof(S) - (End - S),"Alt-Last-Modified: %s\n",
+        End += snprintf(End,sizeof(S)-50 - (End - S),"Alt-Last-Modified: %s\n",
                         TimeRFC1123(Alt->LastModified).c_str());
       
       if (Alt->MD5Sum.empty() == false)
-        End += snprintf(End,sizeof(S) - (End - S),"Alt-MD5-Hash: %s\n",
+        End += snprintf(End,sizeof(S)-50 - (End - S),"Alt-MD5-Hash: %s\n",
                         Alt->MD5Sum.c_str());
+      if (Alt->SHA1Sum.empty() == false)
+        End += snprintf(End,sizeof(S)-50 - (End - S),"Alt-SHA1-Hash: %s\n",
+                        Alt->SHA1Sum.c_str());
       
       if (Alt->IMSHit == true)
         strcat(End,"Alt-IMS-Hit: true\n");
@@ -268,10 +292,11 @@ bool pkgAcqMethod::Configuration(string Message)
 {
    ::Configuration &Cnf = *_config;
    
-   const char *I = Message.begin();
+   const char *I = Message.c_str();
+   const char *MsgEnd = I + Message.length();
    
    unsigned int Length = strlen("Config-Item");
-   for (; I + Length < Message.end(); I++)
+   for (; I + Length < MsgEnd; I++)
    {
       // Not a config item
       if (I[Length] != ':' || stringcasecmp(I,I+Length,"Config-Item") != 0)
@@ -279,11 +304,11 @@ bool pkgAcqMethod::Configuration(string Message)
       
       I += Length + 1;
       
-      for (; I < Message.end() && *I == ' '; I++);
+      for (; I < MsgEnd && *I == ' '; I++);
       const char *Equals = I;
-      for (; Equals < Message.end() && *Equals != '='; Equals++);
+      for (; Equals < MsgEnd && *Equals != '='; Equals++);
       const char *End = Equals;
-      for (; End < Message.end() && *End != '\n'; End++);
+      for (; End < MsgEnd && *End != '\n'; End++);
       if (End == Equals)
         return false;
       
@@ -309,10 +334,9 @@ int pkgAcqMethod::Run(bool Single)
       {
         if (Single == false)
            if (WaitFd(STDIN_FILENO) == false)
-              return 0;
-      
+              break;
         if (ReadMessages(STDIN_FILENO,Messages) == false)
-           return 0;
+           break;
       }
             
       // Single mode exits if the message queue is empty
@@ -332,7 +356,7 @@ int pkgAcqMethod::Run(bool Single)
       }
 
       switch (Number)
-      {
+      {         
         case 601:
         if (Configuration(Message) == false)
            return 100;
@@ -365,6 +389,7 @@ int pkgAcqMethod::Run(bool Single)
       }      
    }
 
+   Exit();
    return 0;
 }
                                                                        /*}}}*/
@@ -382,10 +407,10 @@ void pkgAcqMethod::Log(const char *Format,...)
 
    // sprintf the description
    char S[1024];
-   unsigned int Len = snprintf(S,sizeof(S),"101 Log\nURI: %s\n"
+   unsigned int Len = snprintf(S,sizeof(S)-4,"101 Log\nURI: %s\n"
                               "Message: ",CurrentURI.c_str());
 
-   vsnprintf(S+Len,sizeof(S)-Len,Format,args);
+   vsnprintf(S+Len,sizeof(S)-4-Len,Format,args);
    strcat(S,"\n\n");
    
    if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
@@ -406,10 +431,10 @@ void pkgAcqMethod::Status(const char *Format,...)
 
    // sprintf the description
    char S[1024];
-   unsigned int Len = snprintf(S,sizeof(S),"102 Status\nURI: %s\n"
+   unsigned int Len = snprintf(S,sizeof(S)-4,"102 Status\nURI: %s\n"
                               "Message: ",CurrentURI.c_str());
 
-   vsnprintf(S+Len,sizeof(S)-Len,Format,args);
+   vsnprintf(S+Len,sizeof(S)-4-Len,Format,args);
    strcat(S,"\n\n");
    
    if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
@@ -425,4 +450,13 @@ pkgAcqMethod::FetchResult::FetchResult() : LastModified(0),
 {
 }
                                                                        /*}}}*/
-
+// AcqMethod::FetchResult::TakeHashes - Load hashes                    /*{{{*/
+// ---------------------------------------------------------------------
+/* This hides the number of hashes we are supporting from the caller. 
+   It just deals with the hash class. */
+void pkgAcqMethod::FetchResult::TakeHashes(Hashes &Hash)
+{
+   MD5Sum = Hash.MD5.Result();
+   SHA1Sum = Hash.SHA1.Result();
+}
+                                                                       /*}}}*/