Added copy method

Author: jgg
Date: 1998-10-25 01:57:07 GMT
Added copy method

diff --git a/methods/copy.cc b/methods/copy.cc
new file mode 100644 (file)
index 0000000..68253a6
--- /dev/null
+++ b/methods/copy.cc
@@ -0,0 +1,116 @@
+// -*- mode: cpp; mode: fold -*-
+// Description                                                         /*{{{*/
+// $Id: copy.cc,v 1.1 1998/10/25 01:57:07 jgg Exp $
+/* ######################################################################
+
+   Copy URI - This method takes a uri like a file: uri and copies it
+   to the destination URI.
+   
+   ##################################################################### */
+                                                                       /*}}}*/
+// Include Files                                                       /*{{{*/
+#include <apt-pkg/fileutl.h>
+#include <strutl.h>
+#include <apt-pkg/error.h>
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdio.h>
+                                                                       /*}}}*/
+
+// Fail - Generate a failure message                                   /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void Fail(string URI)
+{
+   string Err = "Undetermined Error";
+   if (_error->empty() == false)
+      _error->PopMessage(Err);
+   
+   printf("400 URI Failure\n"
+         "URI: %s\n"
+         "Message: %s\n\n",URI.c_str(),Err.c_str());
+   _error->Discard();
+}
+                                                                       /*}}}*/
+
+int main()
+{
+   setlinebuf(stdout);
+   SetNonBlock(STDIN_FILENO,true);
+   
+   printf("100 Capabilities\n"
+         "Version: 1.0\n"
+         "Pipeline: true\n\n");
+      
+   vector<string> Messages;   
+   while (1)
+   {
+      if (WaitFd(STDIN_FILENO) == false ||
+         ReadMessages(STDIN_FILENO,Messages) == false)
+        return 0;
+
+      while (Messages.empty() == false)
+      {
+        string Message = Messages.front();
+        Messages.erase(Messages.begin());
+        
+        // Fetch the message number
+        char *End;
+        int Number = strtol(Message.c_str(),&End,10);
+        if (End == Message.c_str())
+        {
+           cerr << "Malformed message!" << endl;
+           return 100;
+        }
+        
+        // We only understand 600 URI Fetch messages
+        if (Number != 600)
+           continue;
+        
+        // Grab the URI bit 
+        string URI = LookupTag(Message,"URI");
+        string Target = LookupTag(Message,"Filename");
+        
+        // Grab the filename
+        string::size_type Pos = URI.find(':');
+        if (Pos == string::npos)
+        {
+           _error->Error("Invalid message");
+           Fail(URI);
+           continue;
+        }
+        string File = string(URI,Pos+1);
+        
+        // Start the reply message
+        string Result = "201 URI Done";
+        Result += "\nURI: " + URI;
+        Result += "\nFileName: " + Target;
+        
+        // See if the file exists
+        FileFd From(File,FileFd::ReadOnly);
+        FileFd To(Target,FileFd::WriteEmpty);
+        To.EraseOnFailure();
+        if (_error->PendingError() == true)
+        {
+           Fail(URI);
+           continue;
+        }       
+        
+        // Copy the file
+        if (CopyFile(From,To) == false)
+        {
+           Fail(URI);
+           continue;
+        }       
+        
+        // Send the message
+        Result += "\n\n";
+        if (write(STDOUT_FILENO,Result.begin(),Result.length()) != 
+            (signed)Result.length())
+           return 100;
+      }      
+   }
+   
+   return 0;
+}

diff --git a/methods/makefile b/methods/makefile
index dbe159a7a7b01cca306635e848950684f84c3e46..ac76b56d9915a75c683c0f7cfe0c6f9210341755 100644 (file)
--- a/methods/makefile
+++ b/methods/makefile
@@ -11,3 +11,9 @@ PROGRAM=file
 SLIBS = -lapt-pkg 
 SOURCE = file.cc
 include $(PROGRAM_H)
+
+# The copy method
+PROGRAM=copy
+SLIBS = -lapt-pkg 
+SOURCE = copy.cc
+include $(PROGRAM_H)