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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: acquire-method.cc,v 1.1 1998/10/30 07:53:35 jgg Exp $
/* ######################################################################
Acquire Method
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#ifdef __GNUG__
#pragma implementation "apt-pkg/acquire-method.h"
#endif
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <apt-pkg/configuration.h>
#include <strutl.h>
#include <apt-pkg/fileutl.h>
#include <stdio.h>
/*}}}*/
// AcqMethod::pkgAcqMethod - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* This constructs the initialization text */
pkgAcqMethod::pkgAcqMethod(const char *Ver,unsigned long Flags)
{
char S[300] = "";
char *End = S;
strcat(End,"100 Capabilities\n");
sprintf(End+strlen(End),"Version: %s\n",Ver);
if ((Flags & SingleInstance) == SingleInstance)
strcat(End,"Single-Instance: true\n");
if ((Flags & PreScan) == PreScan)
strcat(End,"Pre-Scan: true\n");
if ((Flags & Pipeline) == Pipeline)
strcat(End,"Pipeline: true\n");
if ((Flags & SendConfig) == SendConfig)
strcat(End,"Send-Config: true\n");
strcat(End,"\n");
if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
exit(100);
}
/*}}}*/
// AcqMethod::Fail - A fetch has failed /*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::Fail()
{
string Err = "Undetermined Error";
if (_error->empty() == false)
_error->PopMessage(Err);
_error->Discard();
Fail(Err);
}
/*}}}*/
// AcqMethod::Fail - A fetch has failed /*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::Fail(string Err)
{
char S[1024];
snprintf(S,sizeof(S),"400 URI Failure\nURI: %s\n"
"Message %s\n\n",CurrentURI.c_str(),Err.c_str());
if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
exit(100);
}
/*}}}*/
// AcqMethod::URIStart - Indicate a download is starting /*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::URIStart(FetchResult &Res,unsigned long Resume = 0)
{
char S[1024] = "";
char *End = S;
End += snprintf(S,sizeof(S),"200 URI Start\nURI: %s\n",CurrentURI.c_str());
if (Res.Size != 0)
End += snprintf(End,sizeof(S) - (End - S),"Size: %u\n",Res.Size);
if (Res.LastModified != 0)
End += snprintf(End,sizeof(S) - (End - S),"Last-Modified: %s\n",
TimeRFC1123(Res.LastModified).c_str());
if (Resume != 0)
End += snprintf(End,sizeof(S) - (End - S),"Resume-Point: %u\n",
Resume);
strcat(End,"\n");
if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
exit(100);
}
/*}}}*/
// AcqMethod::URIDone - A URI is finished /*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::URIDone(FetchResult &Res, FetchResult *Alt)
{
char S[1024] = "";
char *End = S;
End += snprintf(S,sizeof(S),"201 URI Done\nURI: %s\n",CurrentURI.c_str());
if (Res.Filename.empty() == false)
End += snprintf(End,sizeof(S) - (End - S),"Filename: %s\n",Res.Filename.c_str());
if (Res.Size != 0)
End += snprintf(End,sizeof(S) - (End - S),"Size: %u\n",Res.Size);
if (Res.LastModified != 0)
End += snprintf(End,sizeof(S) - (End - S),"Last-Modified: %s\n",
TimeRFC1123(Res.LastModified).c_str());
if (Res.MD5Sum.empty() == false)
End += snprintf(End,sizeof(S) - (End - S),"MD5Sum: %s\n",Res.MD5Sum.c_str());
if (Res.IMSHit == true)
strcat(End,"IMS-Hit: true\n");
End = S + strlen(S);
if (Alt != 0)
{
if (Alt->Filename.empty() == false)
End += snprintf(End,sizeof(S) - (End - S),"Alt-Filename: %s\n",Alt->Filename.c_str());
if (Alt->Size != 0)
End += snprintf(End,sizeof(S) - (End - S),"Alt-Size: %u\n",Alt->Size);
if (Alt->LastModified != 0)
End += snprintf(End,sizeof(S) - (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-MD5Sum: %s\n",
Alt->MD5Sum.c_str());
if (Alt->IMSHit == true)
strcat(End,"Alt-IMS-Hit: true\n");
}
strcat(End,"\n");
if (write(STDOUT_FILENO,S,strlen(S)) != (signed)strlen(S))
exit(100);
}
/*}}}*/
// AcqMethod::Configuration - Handle the configuration message /*{{{*/
// ---------------------------------------------------------------------
/* This parses each configuration entry and puts it into the _config
Configuration class. */
bool pkgAcqMethod::Configuration(string Message)
{
::Configuration &Cnf = *_config;
const char *I = Message.begin();
unsigned int Length = strlen("Config-Item");
for (; I + Length < Message.end(); I++)
{
// Not a config item
if (I[Length] != ':' || stringcasecmp(I,I+Length,"Config-Item") != 0)
continue;
I += Length + 1;
for (; I < Message.end() && *I == ' '; I++);
const char *Equals = I;
for (; Equals < Message.end() && *Equals != '='; Equals++);
const char *End = Equals;
for (; End < Message.end() && *End != '\n'; End++);
if (End == Equals)
return false;
Cnf.Set(string(I,Equals-I),string(Equals+1,End-Equals-1));
I = End;
}
return true;
}
/*}}}*/
// AcqMethod::Run - Run the message engine /*{{{*/
// ---------------------------------------------------------------------
/* */
int pkgAcqMethod::Run()
{
SetNonBlock(STDIN_FILENO,true);
while (1)
{
if (Messages.empty() == true)
if (WaitFd(STDIN_FILENO) == false)
return 0;
if (ReadMessages(STDIN_FILENO,Messages) == false)
return 0;
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;
}
switch (Number)
{
case 601:
if (Configuration(Message) == false)
return 100;
break;
case 600:
{
CurrentURI = LookupTag(Message,"URI");
DestFile = LookupTag(Message,"FileName");
StrToTime(LookupTag(Message,"Last-Modified"),LastModified);
if (Fetch(Message,CurrentURI) == false)
Fail();
break;
}
}
}
return 0;
}
/*}}}*/
// AcqMethod::FetchResult::FetchResult - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgAcqMethod::FetchResult::FetchResult() : LastModified(0),
IMSHit(false), Size(0)
{
}
/*}}}*/
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