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

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $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 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 
   downloading files..
   
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <config.h>

#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/md5.h>
#include <apt-pkg/sha1.h>
#include <apt-pkg/sha2.h>

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <string>
#include <vector>
#include <iostream>
#include <stdio.h>
									/*}}}*/

using namespace std;

// AcqMethod::pkgAcqMethod - Constructor				/*{{{*/
// ---------------------------------------------------------------------
/* This constructs the initialization text */
pkgAcqMethod::pkgAcqMethod(const char *Ver,unsigned long Flags)
{
   std::cout << "100 Capabilities\n"
	     << "Version: " << Ver << "\n";

   if ((Flags & SingleInstance) == SingleInstance)
      std::cout << "Single-Instance: true\n";

   if ((Flags & Pipeline) == Pipeline)
      std::cout << "Pipeline: true\n";

   if ((Flags & SendConfig) == SendConfig)
      std::cout << "Send-Config: true\n";

   if ((Flags & LocalOnly) == LocalOnly)
      std::cout <<"Local-Only: true\n";

   if ((Flags & NeedsCleanup) == NeedsCleanup)
      std::cout << "Needs-Cleanup: true\n";

   if ((Flags & Removable) == Removable)
      std::cout << "Removable: true\n";

   std::cout << "\n" << std::flush;

   SetNonBlock(STDIN_FILENO,true);

   Queue = 0;
   QueueBack = 0;
}
									/*}}}*/
// AcqMethod::Fail - A fetch has failed					/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::Fail(bool Transient)
{
   string Err = "Undetermined Error";
   if (_error->empty() == false)
      _error->PopMessage(Err);   
   _error->Discard();
   Fail(Err,Transient);
}
									/*}}}*/
// AcqMethod::Fail - A fetch has failed					/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::Fail(string Err,bool Transient)
{
   // Strip out junk from the error messages
   for (string::iterator I = Err.begin(); I != Err.end(); ++I)
   {
      if (*I == '\r') 
	 *I = ' ';
      if (*I == '\n') 
	 *I = ' ';
   }

   if (Queue != 0)
   {
      std::cout << "400 URI Failure\nURI: " << Queue->Uri << "\n"
		<< "Message: " << Err << " " << IP << "\n";
      Dequeue();
   }
   else
      std::cout << "400 URI Failure\nURI: <UNKNOWN>\nMessage: " << Err << "\n";

   if(FailReason.empty() == false)
      std::cout << "FailReason: " << FailReason << "\n";
   if (UsedMirror.empty() == false)
      std::cout << "UsedMirror: " << UsedMirror << "\n";
   // Set the transient flag
   if (Transient == true)
      std::cout << "Transient-Failure: true\n";

   std::cout << "\n" << std::flush;
}
									/*}}}*/
// AcqMethod::DropPrivsOrDie - Drop privileges or die		/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::DropPrivsOrDie()
{
   if (!DropPrivs()) {
      Fail(false);
      exit(112);	/* call the european emergency number */
   }
}

									/*}}}*/
// AcqMethod::URIStart - Indicate a download is starting		/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::URIStart(FetchResult &Res)
{
   if (Queue == 0)
      abort();

   std::cout << "200 URI Start\n"
	     << "URI: " << Queue->Uri << "\n";
   if (Res.Size != 0)
      std::cout << "Size: " << Res.Size << "\n";

   if (Res.LastModified != 0)
      std::cout << "Last-Modified: " << TimeRFC1123(Res.LastModified) << "\n";

   if (Res.ResumePoint != 0)
      std::cout << "Resume-Point: " << Res.ResumePoint << "\n";

   if (UsedMirror.empty() == false)
      std::cout << "UsedMirror: " << UsedMirror << "\n";

   std::cout << "\n" << std::flush;
}
									/*}}}*/
// AcqMethod::URIDone - A URI is finished				/*{{{*/
// ---------------------------------------------------------------------
/* */
static void printHashStringList(HashStringList const * const list)
{
      for (HashStringList::const_iterator hash = list->begin(); hash != list->end(); ++hash)
      {
	 // very old compatibility name for MD5Sum
	 if (hash->HashType() == "MD5Sum")
	    std::cout << "MD5-Hash: " << hash->HashValue() << "\n";
	 std::cout << hash->HashType() << "-Hash: " << hash->HashValue() << "\n";
      }
}
void pkgAcqMethod::URIDone(FetchResult &Res, FetchResult *Alt)
{
   if (Queue == 0)
      abort();

   std::cout << "201 URI Done\n"
	     << "URI: " << Queue->Uri << "\n";

   if (Res.Filename.empty() == false)
      std::cout << "Filename: " << Res.Filename << "\n";

   if (Res.Size != 0)
      std::cout << "Size: " << Res.Size << "\n";

   if (Res.LastModified != 0)
      std::cout << "Last-Modified: " << TimeRFC1123(Res.LastModified) << "\n";

   printHashStringList(&Res.Hashes);

   if (UsedMirror.empty() == false)
      std::cout << "UsedMirror: " << UsedMirror << "\n";
   if (Res.GPGVOutput.empty() == false)
   {
      std::cout << "GPGVOutput:\n";
      for (vector<string>::const_iterator I = Res.GPGVOutput.begin();
	   I != Res.GPGVOutput.end(); ++I)
	 std::cout << " " << *I << "\n";
   }

   if (Res.ResumePoint != 0)
      std::cout << "Resume-Point: " << Res.ResumePoint << "\n";

   if (Res.IMSHit == true)
      std::cout << "IMS-Hit: true\n";

   if (Alt != 0)
   {
      if (Alt->Filename.empty() == false)
	 std::cout << "Alt-Filename: " << Alt->Filename << "\n";

      if (Alt->Size != 0)
	 std::cout << "Alt-Size: " << Alt->Size << "\n";

      if (Alt->LastModified != 0)
	 std::cout << "Alt-Last-Modified: " << TimeRFC1123(Alt->LastModified) << "\n";

      printHashStringList(&Alt->Hashes);

      if (Alt->IMSHit == true)
	 std::cout << "Alt-IMS-Hit: true\n";
   }

   std::cout << "\n" << std::flush;
   Dequeue();
}
									/*}}}*/
// AcqMethod::MediaFail - Syncronous request for new media		/*{{{*/
// ---------------------------------------------------------------------
/* This sends a 403 Media Failure message to the APT and waits for it
   to be ackd */
bool pkgAcqMethod::MediaFail(string Required,string Drive)
{
   fprintf(stdout, "403 Media Failure\nMedia: %s\nDrive: %s\n",
	    Required.c_str(),Drive.c_str());
   std::cout << "\n" << std::flush;

   vector<string> MyMessages;
   
   /* Here we read messages until we find a 603, each non 603 message is
      appended to the main message list for later processing */
   while (1)
   {
      if (WaitFd(STDIN_FILENO) == false)
	 return false;
      
      if (ReadMessages(STDIN_FILENO,MyMessages) == false)
	 return false;

      string Message = MyMessages.front();
      MyMessages.erase(MyMessages.begin());
      
      // Fetch the message number
      char *End;
      int Number = strtol(Message.c_str(),&End,10);
      if (End == Message.c_str())
      {	 
	 cerr << "Malformed message!" << endl;
	 exit(100);
      }

      // Change ack
      if (Number == 603)
      {
	 while (MyMessages.empty() == false)
	 {
	    Messages.push_back(MyMessages.front());
	    MyMessages.erase(MyMessages.begin());
	 }

	 return !StringToBool(LookupTag(Message,"Failed"),false);
      }
      
      Messages.push_back(Message);
   }   
}
									/*}}}*/
// 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.c_str();
   const char *MsgEnd = I + Message.length();
   
   unsigned int Length = strlen("Config-Item");
   for (; I + Length < MsgEnd; I++)
   {
      // Not a config item
      if (I[Length] != ':' || stringcasecmp(I,I+Length,"Config-Item") != 0)
	 continue;
      
      I += Length + 1;
      
      for (; I < MsgEnd && *I == ' '; I++);
      const char *Equals = (const char*) memchr(I, '=', MsgEnd - I);
      if (Equals == NULL)
	 return false;
      const char *End = (const char*) memchr(Equals, '\n', MsgEnd - Equals);
      if (End == NULL)
	 End = MsgEnd;
      
      Cnf.Set(DeQuoteString(string(I,Equals-I)),
	      DeQuoteString(string(Equals+1,End-Equals-1)));
      I = End;
   }
   
   return true;
}
									/*}}}*/
// AcqMethod::Run - Run the message engine				/*{{{*/
// ---------------------------------------------------------------------
/* Fetch any messages and execute them. In single mode it returns 1 if
   there are no more available messages - any other result is a 
   fatal failure code! */
int pkgAcqMethod::Run(bool Single)
{
   while (1)
   {
      // Block if the message queue is empty
      if (Messages.empty() == true)
      {
	 if (Single == false)
	    if (WaitFd(STDIN_FILENO) == false)
	       break;
	 if (ReadMessages(STDIN_FILENO,Messages) == false)
	    break;
      }
            
      // Single mode exits if the message queue is empty
      if (Single == true && Messages.empty() == true)
	 return -1;
      
      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:
	 {
	    FetchItem *Tmp = new FetchItem;
	    
	    Tmp->Uri = LookupTag(Message,"URI");
	    Tmp->DestFile = LookupTag(Message,"FileName");
	    if (RFC1123StrToTime(LookupTag(Message,"Last-Modified").c_str(),Tmp->LastModified) == false)
	       Tmp->LastModified = 0;
	    Tmp->IndexFile = StringToBool(LookupTag(Message,"Index-File"),false);
	    Tmp->FailIgnore = StringToBool(LookupTag(Message,"Fail-Ignore"),false);
	    Tmp->ExpectedHashes = HashStringList();
	    for (char const * const * t = HashString::SupportedHashes(); *t != NULL; ++t)
	    {
	       std::string tag = "Expected-";
	       tag.append(*t);
	       std::string const hash = LookupTag(Message, tag.c_str());
	       if (hash.empty() == false)
		  Tmp->ExpectedHashes.push_back(HashString(*t, hash));
	    }
	    Tmp->Next = 0;
	    
	    // Append it to the list
	    FetchItem **I = &Queue;
	    for (; *I != 0; I = &(*I)->Next);
	    *I = Tmp;
	    if (QueueBack == 0)
	       QueueBack = Tmp;
	    
	    // Notify that this item is to be fetched.
	    if (Fetch(Tmp) == false)
	       Fail();
	    
	    break;					     
	 }   
      }      
   }

   Exit();
   return 0;
}
									/*}}}*/
// AcqMethod::PrintStatus - privately really send a log/status message	/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::PrintStatus(char const * const header, const char* Format,
			       va_list &args) const
{
   string CurrentURI = "<UNKNOWN>";
   if (Queue != 0)
      CurrentURI = Queue->Uri;
   if (UsedMirror.empty() == true)
      fprintf(stdout, "%s\nURI: %s\nMessage: ",
	      header, CurrentURI.c_str());
   else
      fprintf(stdout, "%s\nURI: %s\nUsedMirror: %s\nMessage: ",
	      header, CurrentURI.c_str(), UsedMirror.c_str());
   vfprintf(stdout,Format,args);
   std::cout << "\n\n" << std::flush;
}
									/*}}}*/
// AcqMethod::Log - Send a log message					/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::Log(const char *Format,...)
{
   va_list args;
   va_start(args,Format);
   PrintStatus("101 Log", Format, args);
   va_end(args);
}
									/*}}}*/
// AcqMethod::Status - Send a status message				/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgAcqMethod::Status(const char *Format,...)
{
   va_list args;
   va_start(args,Format);
   PrintStatus("102 Status", Format, args);
   va_end(args);
}
									/*}}}*/
// AcqMethod::Redirect - Send a redirect message                       /*{{{*/
// ---------------------------------------------------------------------
/* This method sends the redirect message and dequeues the item as
 * the worker will enqueue again later on to the right queue */
void pkgAcqMethod::Redirect(const string &NewURI)
{
   std::cout << "103 Redirect\nURI: " << Queue->Uri << "\n"
	     << "New-URI: " << NewURI << "\n"
	     << "\n" << std::flush;
   Dequeue();
}
                                                                        /*}}}*/
// AcqMethod::FetchResult::FetchResult - Constructor			/*{{{*/
// ---------------------------------------------------------------------
/* */
pkgAcqMethod::FetchResult::FetchResult() : LastModified(0),
                                   IMSHit(false), Size(0), ResumePoint(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(class Hashes &Hash)
{
   Hashes = Hash.GetHashStringList();
}
									/*}}}*/
void pkgAcqMethod::Dequeue() {						/*{{{*/
   FetchItem const * const Tmp = Queue;
   Queue = Queue->Next;
   if (Tmp == QueueBack)
      QueueBack = Queue;
   delete Tmp;
}
									/*}}}*/
Commit	Line	Data
93bf083d AL	1	// -- mode: cpp; mode: fold --
93bf083d AL	2	// Description /{{{/
b3d44315	3	// $Id: acquire-method.cc,v 1.27.2.1 2003/12/24 23:09:17 mdz Exp $
93bf083d AL	4	/* ######################################################################
	5
	6	Acquire Method
	7
8384ebdf	8	This is a skeleton class that implements most of the functionality
b2e465d6	9	of a method and some useful functions to make method implementation
8384ebdf AL	10	simpler. The methods all derive this and specialize it. The most
	11	complex implementation is the http method which needs to provide
	12	pipelining, it runs the message engine at the same time it is
	13	downloading files..
	14
93bf083d AL	15	##################################################################### */
	16	/}}}/
	17	// Include Files /{{{/
ea542140 DK	18	#include <config.h>
ea542140 DK	19
93bf083d AL	20	#include <apt-pkg/acquire-method.h>
	21	#include <apt-pkg/error.h>
	22	#include <apt-pkg/configuration.h>
cdcc6d34	23	#include <apt-pkg/strutl.h>
93bf083d	24	#include <apt-pkg/fileutl.h>
a7c835af	25	#include <apt-pkg/hashes.h>
453b82a3 DK	26	#include <apt-pkg/md5.h>
	27	#include <apt-pkg/sha1.h>
	28	#include <apt-pkg/sha2.h>
b4fc9b6f	29
453b82a3 DK	30	#include <stdarg.h>
	31	#include <stdlib.h>
	32	#include <string.h>
	33	#include <unistd.h>
	34	#include <string>
	35	#include <vector>
b4fc9b6f	36	#include <iostream>
93bf083d AL	37	#include <stdio.h>
	38	/}}}/
	39
b4fc9b6f AL	40	using namespace std;
b4fc9b6f AL	41
93bf083d AL	42	// AcqMethod::pkgAcqMethod - Constructor /{{{/
	43	// ---------------------------------------------------------------------
	44	/* This constructs the initialization text */
	45	pkgAcqMethod::pkgAcqMethod(const char *Ver,unsigned long Flags)
	46	{
c8848ae2 DK	47	std::cout << "100 Capabilities\n"
c8848ae2 DK	48	<< "Version: " << Ver << "\n";
93bf083d AL	49
93bf083d AL	50	if ((Flags & SingleInstance) == SingleInstance)
c8848ae2 DK	51	std::cout << "Single-Instance: true\n";
c8848ae2 DK	52
93bf083d	53	if ((Flags & Pipeline) == Pipeline)
c8848ae2 DK	54	std::cout << "Pipeline: true\n";
c8848ae2 DK	55
93bf083d	56	if ((Flags & SendConfig) == SendConfig)
c8848ae2	57	std::cout << "Send-Config: true\n";
e331f6ed AL	58
e331f6ed AL	59	if ((Flags & LocalOnly) == LocalOnly)
c8848ae2	60	std::cout <<"Local-Only: true\n";
8e5fc8f5 AL	61
8e5fc8f5 AL	62	if ((Flags & NeedsCleanup) == NeedsCleanup)
c8848ae2	63	std::cout << "Needs-Cleanup: true\n";
459681d3 AL	64
459681d3 AL	65	if ((Flags & Removable) == Removable)
c8848ae2	66	std::cout << "Removable: true\n";
93bf083d	67
c8848ae2	68	std::cout << "\n" << std::flush;
be4401bf AL	69
be4401bf AL	70	SetNonBlock(STDIN_FILENO,true);
5cb5d8dc	71
92e889c8	72	Queue = 0;
5cb5d8dc	73	QueueBack = 0;
93bf083d AL	74	}
	75	/}}}/
	76	// AcqMethod::Fail - A fetch has failed /{{{/
	77	// ---------------------------------------------------------------------
	78	/* */
a72ace20	79	void pkgAcqMethod::Fail(bool Transient)
93bf083d AL	80	{
	81	string Err = "Undetermined Error";
	82	if (_error->empty() == false)
	83	_error->PopMessage(Err);
	84	_error->Discard();
a72ace20	85	Fail(Err,Transient);
93bf083d AL	86	}
	87	/}}}/
	88	// AcqMethod::Fail - A fetch has failed /{{{/
	89	// ---------------------------------------------------------------------
	90	/* */
a72ace20	91	void pkgAcqMethod::Fail(string Err,bool Transient)
6d5dd02a AL	92	{
6d5dd02a AL	93	// Strip out junk from the error messages
f7f0d6c7	94	for (string::iterator I = Err.begin(); I != Err.end(); ++I)
6d5dd02a AL	95	{
	96	if (*I == '\r')
	97	*I = ' ';
	98	if (*I == '\n')
	99	*I = ' ';
	100	}
c8848ae2	101
be4401bf AL	102	if (Queue != 0)
be4401bf AL	103	{
c8848ae2 DK	104	std::cout << "400 URI Failure\nURI: " << Queue->Uri << "\n"
c8848ae2 DK	105	<< "Message: " << Err << " " << IP << "\n";
e1284a59	106	Dequeue();
be4401bf AL	107	}
be4401bf AL	108	else
c8848ae2 DK	109	std::cout << "400 URI Failure\nURI: <UNKNOWN>\nMessage: " << Err << "\n";
c8848ae2 DK	110
36280399	111	if(FailReason.empty() == false)
c8848ae2	112	std::cout << "FailReason: " << FailReason << "\n";
36280399	113	if (UsedMirror.empty() == false)
c8848ae2 DK	114	std::cout << "UsedMirror: " << UsedMirror << "\n";
c8848ae2 DK	115	// Set the transient flag
a72ace20	116	if (Transient == true)
c8848ae2 DK	117	std::cout << "Transient-Failure: true\n";
	118
	119	std::cout << "\n" << std::flush;
93bf083d	120	}
7b18d559 JAK	121	/}}}/
	122	// AcqMethod::DropPrivsOrDie - Drop privileges or die /{{{/
	123	// ---------------------------------------------------------------------
	124	/* */
	125	void pkgAcqMethod::DropPrivsOrDie()
	126	{
	127	if (!DropPrivs()) {
	128	Fail(false);
	129	exit(112); /* call the european emergency number */
	130	}
	131	}
	132
93bf083d AL	133	/}}}/
	134	// AcqMethod::URIStart - Indicate a download is starting /{{{/
	135	// ---------------------------------------------------------------------
	136	/* */
be4401bf	137	void pkgAcqMethod::URIStart(FetchResult &Res)
93bf083d	138	{
be4401bf AL	139	if (Queue == 0)
be4401bf AL	140	abort();
c8848ae2 DK	141
	142	std::cout << "200 URI Start\n"
	143	<< "URI: " << Queue->Uri << "\n";
93bf083d	144	if (Res.Size != 0)
c8848ae2 DK	145	std::cout << "Size: " << Res.Size << "\n";
c8848ae2 DK	146
93bf083d	147	if (Res.LastModified != 0)
c8848ae2 DK	148	std::cout << "Last-Modified: " << TimeRFC1123(Res.LastModified) << "\n";
c8848ae2 DK	149
be4401bf	150	if (Res.ResumePoint != 0)
c8848ae2 DK	151	std::cout << "Resume-Point: " << Res.ResumePoint << "\n";
c8848ae2 DK	152
196fd136	153	if (UsedMirror.empty() == false)
c8848ae2 DK	154	std::cout << "UsedMirror: " << UsedMirror << "\n";
	155
	156	std::cout << "\n" << std::flush;
93bf083d AL	157	}
	158	/}}}/
	159	// AcqMethod::URIDone - A URI is finished /{{{/
	160	// ---------------------------------------------------------------------
	161	/* */
b3501edb DK	162	static void printHashStringList(HashStringList const * const list)
	163	{
	164	for (HashStringList::const_iterator hash = list->begin(); hash != list->end(); ++hash)
	165	{
	166	// very old compatibility name for MD5Sum
	167	if (hash->HashType() == "MD5Sum")
	168	std::cout << "MD5-Hash: " << hash->HashValue() << "\n";
	169	std::cout << hash->HashType() << "-Hash: " << hash->HashValue() << "\n";
	170	}
	171	}
93bf083d AL	172	void pkgAcqMethod::URIDone(FetchResult &Res, FetchResult *Alt)
93bf083d AL	173	{
be4401bf AL	174	if (Queue == 0)
be4401bf AL	175	abort();
c8848ae2 DK	176
	177	std::cout << "201 URI Done\n"
	178	<< "URI: " << Queue->Uri << "\n";
93bf083d AL	179
93bf083d AL	180	if (Res.Filename.empty() == false)
c8848ae2 DK	181	std::cout << "Filename: " << Res.Filename << "\n";
c8848ae2 DK	182
93bf083d	183	if (Res.Size != 0)
c8848ae2 DK	184	std::cout << "Size: " << Res.Size << "\n";
c8848ae2 DK	185
93bf083d	186	if (Res.LastModified != 0)
c8848ae2	187	std::cout << "Last-Modified: " << TimeRFC1123(Res.LastModified) << "\n";
93bf083d	188
b3501edb DK	189	printHashStringList(&Res.Hashes);
b3501edb DK	190
36280399	191	if (UsedMirror.empty() == false)
c8848ae2 DK	192	std::cout << "UsedMirror: " << UsedMirror << "\n";
	193	if (Res.GPGVOutput.empty() == false)
	194	{
	195	std::cout << "GPGVOutput:\n";
	196	for (vector<string>::const_iterator I = Res.GPGVOutput.begin();
	197	I != Res.GPGVOutput.end(); ++I)
	198	std::cout << " " << *I << "\n";
	199	}
93bf083d	200
b98f2859	201	if (Res.ResumePoint != 0)
c8848ae2	202	std::cout << "Resume-Point: " << Res.ResumePoint << "\n";
b98f2859	203
93bf083d	204	if (Res.IMSHit == true)
c8848ae2 DK	205	std::cout << "IMS-Hit: true\n";
c8848ae2 DK	206
93bf083d AL	207	if (Alt != 0)
	208	{
	209	if (Alt->Filename.empty() == false)
c8848ae2 DK	210	std::cout << "Alt-Filename: " << Alt->Filename << "\n";
c8848ae2 DK	211
93bf083d	212	if (Alt->Size != 0)
c8848ae2 DK	213	std::cout << "Alt-Size: " << Alt->Size << "\n";
c8848ae2 DK	214
93bf083d	215	if (Alt->LastModified != 0)
c8848ae2 DK	216	std::cout << "Alt-Last-Modified: " << TimeRFC1123(Alt->LastModified) << "\n";
c8848ae2 DK	217
b3501edb DK	218	printHashStringList(&Alt->Hashes);
b3501edb DK	219
93bf083d	220	if (Alt->IMSHit == true)
c8848ae2	221	std::cout << "Alt-IMS-Hit: true\n";
93bf083d	222	}
c8848ae2 DK	223
c8848ae2 DK	224	std::cout << "\n" << std::flush;
e1284a59	225	Dequeue();
93bf083d AL	226	}
93bf083d AL	227	/}}}/
f46e7681 AL	228	// AcqMethod::MediaFail - Syncronous request for new media /{{{/
	229	// ---------------------------------------------------------------------
	230	/* This sends a 403 Media Failure message to the APT and waits for it
	231	to be ackd */
018f1533	232	bool pkgAcqMethod::MediaFail(string Required,string Drive)
f46e7681	233	{
c8848ae2	234	fprintf(stdout, "403 Media Failure\nMedia: %s\nDrive: %s\n",
f46e7681	235	Required.c_str(),Drive.c_str());
c8848ae2	236	std::cout << "\n" << std::flush;
f46e7681	237
f46e7681 AL	238	vector<string> MyMessages;
	239
	240	/* Here we read messages until we find a 603, each non 603 message is
	241	appended to the main message list for later processing */
	242	while (1)
	243	{
	244	if (WaitFd(STDIN_FILENO) == false)
76d97c26	245	return false;
f46e7681 AL	246
f46e7681 AL	247	if (ReadMessages(STDIN_FILENO,MyMessages) == false)
76d97c26 AL	248	return false;
76d97c26 AL	249
f46e7681 AL	250	string Message = MyMessages.front();
	251	MyMessages.erase(MyMessages.begin());
	252
	253	// Fetch the message number
	254	char *End;
	255	int Number = strtol(Message.c_str(),&End,10);
	256	if (End == Message.c_str())
	257	{
	258	cerr << "Malformed message!" << endl;
	259	exit(100);
	260	}
	261
	262	// Change ack
	263	if (Number == 603)
	264	{
76d97c26	265	while (MyMessages.empty() == false)
f46e7681 AL	266	{
	267	Messages.push_back(MyMessages.front());
	268	MyMessages.erase(MyMessages.begin());
	269	}
542ec555	270
2a749770	271	return !StringToBool(LookupTag(Message,"Failed"),false);
f46e7681 AL	272	}
	273
	274	Messages.push_back(Message);
	275	}
	276	}
	277	/}}}/
93bf083d AL	278	// AcqMethod::Configuration - Handle the configuration message /{{{/
	279	// ---------------------------------------------------------------------
	280	/* This parses each configuration entry and puts it into the _config
	281	Configuration class. */
	282	bool pkgAcqMethod::Configuration(string Message)
	283	{
	284	::Configuration &Cnf = *_config;
	285
b4fc9b6f AL	286	const char *I = Message.c_str();
b4fc9b6f AL	287	const char *MsgEnd = I + Message.length();
93bf083d AL	288
93bf083d AL	289	unsigned int Length = strlen("Config-Item");
b4fc9b6f	290	for (; I + Length < MsgEnd; I++)
93bf083d AL	291	{
	292	// Not a config item
	293	if (I[Length] != ':' \|\| stringcasecmp(I,I+Length,"Config-Item") != 0)
	294	continue;
	295
	296	I += Length + 1;
	297
b4fc9b6f	298	for (; I < MsgEnd && *I == ' '; I++);
404528bd DK	299	const char Equals = (const char) memchr(I, '=', MsgEnd - I);
404528bd DK	300	if (Equals == NULL)
93bf083d	301	return false;
404528bd DK	302	const char End = (const char) memchr(Equals, '\n', MsgEnd - Equals);
	303	if (End == NULL)
	304	End = MsgEnd;
93bf083d	305
6d5dd02a AL	306	Cnf.Set(DeQuoteString(string(I,Equals-I)),
6d5dd02a AL	307	DeQuoteString(string(Equals+1,End-Equals-1)));
93bf083d AL	308	I = End;
	309	}
	310
	311	return true;
	312	}
	313	/}}}/
	314	// AcqMethod::Run - Run the message engine /{{{/
	315	// ---------------------------------------------------------------------
8384ebdf AL	316	/* Fetch any messages and execute them. In single mode it returns 1 if
	317	there are no more available messages - any other result is a
	318	fatal failure code! */
be4401bf	319	int pkgAcqMethod::Run(bool Single)
93bf083d	320	{
93bf083d AL	321	while (1)
93bf083d AL	322	{
be4401bf	323	// Block if the message queue is empty
93bf083d	324	if (Messages.empty() == true)
be4401bf AL	325	{
	326	if (Single == false)
	327	if (WaitFd(STDIN_FILENO) == false)
8e5fc8f5	328	break;
92e889c8	329	if (ReadMessages(STDIN_FILENO,Messages) == false)
8e5fc8f5	330	break;
92e889c8 AL	331	}
92e889c8 AL	332
be4401bf AL	333	// Single mode exits if the message queue is empty
be4401bf AL	334	if (Single == true && Messages.empty() == true)
8384ebdf	335	return -1;
be4401bf	336
93bf083d AL	337	string Message = Messages.front();
	338	Messages.erase(Messages.begin());
	339
	340	// Fetch the message number
	341	char *End;
	342	int Number = strtol(Message.c_str(),&End,10);
	343	if (End == Message.c_str())
	344	{
	345	cerr << "Malformed message!" << endl;
	346	return 100;
	347	}
	348
	349	switch (Number)
8e5fc8f5	350	{
93bf083d AL	351	case 601:
	352	if (Configuration(Message) == false)
	353	return 100;
	354	break;
	355
	356	case 600:
be4401bf AL	357	{
	358	FetchItem *Tmp = new FetchItem;
	359
	360	Tmp->Uri = LookupTag(Message,"URI");
	361	Tmp->DestFile = LookupTag(Message,"FileName");
96cc64a5	362	if (RFC1123StrToTime(LookupTag(Message,"Last-Modified").c_str(),Tmp->LastModified) == false)
b98f2859	363	Tmp->LastModified = 0;
a72ace20	364	Tmp->IndexFile = StringToBool(LookupTag(Message,"Index-File"),false);
963b16dc	365	Tmp->FailIgnore = StringToBool(LookupTag(Message,"Fail-Ignore"),false);
d003a557 DK	366	Tmp->ExpectedHashes = HashStringList();
	367	for (char const * const * t = HashString::SupportedHashes(); *t != NULL; ++t)
	368	{
	369	std::string tag = "Expected-";
	370	tag.append(*t);
	371	std::string const hash = LookupTag(Message, tag.c_str());
	372	if (hash.empty() == false)
	373	Tmp->ExpectedHashes.push_back(HashString(*t, hash));
	374	}
be4401bf AL	375	Tmp->Next = 0;
	376
	377	// Append it to the list
	378	FetchItem **I = &Queue;
92e889c8	379	for (; I != 0; I = &(I)->Next);
be4401bf	380	*I = Tmp;
5cb5d8dc AL	381	if (QueueBack == 0)
	382	QueueBack = Tmp;
	383
bfd22fc0	384	// Notify that this item is to be fetched.
be4401bf	385	if (Fetch(Tmp) == false)
93bf083d	386	Fail();
bfd22fc0	387
93bf083d AL	388	break;
	389	}
	390	}
	391	}
	392
8e5fc8f5	393	Exit();
93bf083d AL	394	return 0;
	395	}
	396	/}}}/
f1bdfe81	397	// AcqMethod::PrintStatus - privately really send a log/status message /{{{/
be4401bf AL	398	// ---------------------------------------------------------------------
be4401bf AL	399	/* */
f1bdfe81 DK	400	void pkgAcqMethod::PrintStatus(char const * const header, const char* Format,
f1bdfe81 DK	401	va_list &args) const
be4401bf AL	402	{
	403	string CurrentURI = "<UNKNOWN>";
	404	if (Queue != 0)
	405	CurrentURI = Queue->Uri;
f1bdfe81 DK	406	if (UsedMirror.empty() == true)
	407	fprintf(stdout, "%s\nURI: %s\nMessage: ",
	408	header, CurrentURI.c_str());
	409	else
	410	fprintf(stdout, "%s\nURI: %s\nUsedMirror: %s\nMessage: ",
	411	header, CurrentURI.c_str(), UsedMirror.c_str());
	412	vfprintf(stdout,Format,args);
	413	std::cout << "\n\n" << std::flush;
	414	}
	415	/}}}/
	416	// AcqMethod::Log - Send a log message /{{{/
	417	// ---------------------------------------------------------------------
	418	/* */
	419	void pkgAcqMethod::Log(const char *Format,...)
	420	{
be4401bf AL	421	va_list args;
be4401bf AL	422	va_start(args,Format);
f1bdfe81	423	PrintStatus("101 Log", Format, args);
c8848ae2	424	va_end(args);
be4401bf AL	425	}
	426	/}}}/
	427	// AcqMethod::Status - Send a status message /{{{/
	428	// ---------------------------------------------------------------------
	429	/* */
	430	void pkgAcqMethod::Status(const char *Format,...)
	431	{
be4401bf AL	432	va_list args;
be4401bf AL	433	va_start(args,Format);
f1bdfe81	434	PrintStatus("102 Status", Format, args);
c8848ae2	435	va_end(args);
be4401bf AL	436	}
be4401bf AL	437	/}}}/
ebb461fd MV	438	// AcqMethod::Redirect - Send a redirect message /{{{/
ebb461fd MV	439	// ---------------------------------------------------------------------
5674f6b3 RG	440	/* This method sends the redirect message and dequeues the item as
5674f6b3 RG	441	* the worker will enqueue again later on to the right queue */
ebb461fd MV	442	void pkgAcqMethod::Redirect(const string &NewURI)
ebb461fd MV	443	{
b40b7c38 DK	444	std::cout << "103 Redirect\nURI: " << Queue->Uri << "\n"
b40b7c38 DK	445	<< "New-URI: " << NewURI << "\n"
c8848ae2	446	<< "\n" << std::flush;
5674f6b3	447	Dequeue();
ebb461fd MV	448	}
ebb461fd MV	449	/}}}/
93bf083d AL	450	// AcqMethod::FetchResult::FetchResult - Constructor /{{{/
	451	// ---------------------------------------------------------------------
	452	/* */
93274b8d AL	453	pkgAcqMethod::FetchResult::FetchResult() : LastModified(0),
93274b8d AL	454	IMSHit(false), Size(0), ResumePoint(0)
93bf083d AL	455	{
	456	}
	457	/}}}/
a7c835af AL	458	// AcqMethod::FetchResult::TakeHashes - Load hashes /{{{/
	459	// ---------------------------------------------------------------------
	460	/* This hides the number of hashes we are supporting from the caller.
	461	It just deals with the hash class. */
b3501edb	462	void pkgAcqMethod::FetchResult::TakeHashes(class Hashes &Hash)
a7c835af	463	{
b3501edb	464	Hashes = Hash.GetHashStringList();
a7c835af AL	465	}
a7c835af AL	466	/}}}/
e1284a59 DK	467	void pkgAcqMethod::Dequeue() { /{{{/
	468	FetchItem const * const Tmp = Queue;
	469	Queue = Queue->Next;
	470	if (Tmp == QueueBack)
	471	QueueBack = Queue;
	472	delete Tmp;
	473	}
	474	/}}}/