[apt-legacy.git] / methods / file.cc

extern "C" {
    #include <mach-o/nlist.h>
}

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: file.cc,v 1.9.2.1 2004/01/16 18:58:50 mdz Exp $
/* ######################################################################

   File URI method for APT
   
   This simply checks that the file specified exists, if so the relevent
   information is returned. If a .gz filename is specified then the file
   name with .gz removed will also be checked and information about it
   will be returned in Alt-*
   
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/fileutl.h>

#include <sys/stat.h>
#include <unistd.h>
#include <apti18n.h>
									/*}}}*/

class FileMethod : public pkgAcqMethod
{
   virtual bool Fetch(FetchItem *Itm);
   
   public:
   
   FileMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly) {};
};

// FileMethod::Fetch - Fetch a file					/*{{{*/
// ---------------------------------------------------------------------
/* */
bool FileMethod::Fetch(FetchItem *Itm)
{
   URI Get = Itm->Uri;
   string File = Get.Path;
   FetchResult Res;
   if (Get.Host.empty() == false)
      return _error->Error(_("Invalid URI, local URIS must not start with //"));

   // See if the file exists
   struct stat Buf;
   if (stat(File.c_str(),&Buf) == 0)
   {
      Res.Size = Buf.st_size;
      Res.Filename = File;
      Res.LastModified = Buf.st_mtime;
      Res.IMSHit = false;
      if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
	 Res.IMSHit = true;
   }
   
   // See if we can compute a file without a .gz exentsion
   string::size_type Pos = File.rfind(".gz");
   if (Pos + 3 == File.length())
   {
      File = string(File,0,Pos);
      if (stat(File.c_str(),&Buf) == 0)
      {
	 FetchResult AltRes;
	 AltRes.Size = Buf.st_size;
	 AltRes.Filename = File;
	 AltRes.LastModified = Buf.st_mtime;
	 AltRes.IMSHit = false;
	 if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
	    AltRes.IMSHit = true;
	 
	 URIDone(Res,&AltRes);
	 return true;
      }      
   }
   
   if (Res.Filename.empty() == true)
      return _error->Error(_("File not found"));

   Hashes Hash;
   FileFd Fd(Res.Filename, FileFd::ReadOnly);
   Hash.AddFD(Fd.Fd(), Fd.Size());
   Res.TakeHashes(Hash);
   URIDone(Res);
   return true;
}
									/*}}}*/

int main()
{
#if !defined(__ENVIRONMENT_ASPEN_VERSION_MIN_REQUIRED__) || __ENVIRONMENT_ASPEN_VERSION_MIN_REQUIRED__ < 10200
   struct nlist nl[2];
   memset(nl, 0, sizeof(nl));
   nl[0].n_un.n_name = (char *) "_useMDNSResponder";
   nlist("/usr/lib/libc.dylib", nl);
   if (nl[0].n_type != N_UNDF)
       *(int *) nl[0].n_value = 0;
#endif

   setlocale(LC_ALL, "");

   FileMethod Mth;
   return Mth.Run();
}
Commit	Line	Data
854e5ff1 JF	1	extern "C" {
	2	#include <mach-o/nlist.h>
	3	}
	4
da6ee469 JF	5	// -- mode: cpp; mode: fold --
	6	// Description /{{{/
	7	// $Id: file.cc,v 1.9.2.1 2004/01/16 18:58:50 mdz Exp $
	8	/* ######################################################################
	9
	10	File URI method for APT
	11
	12	This simply checks that the file specified exists, if so the relevent
	13	information is returned. If a .gz filename is specified then the file
	14	name with .gz removed will also be checked and information about it
	15	will be returned in Alt-*
	16
	17	##################################################################### */
	18	/}}}/
	19	// Include Files /{{{/
	20	#include <apt-pkg/acquire-method.h>
	21	#include <apt-pkg/error.h>
	22	#include <apt-pkg/hashes.h>
	23	#include <apt-pkg/fileutl.h>
	24
	25	#include <sys/stat.h>
	26	#include <unistd.h>
	27	#include <apti18n.h>
	28	/}}}/
	29
	30	class FileMethod : public pkgAcqMethod
	31	{
	32	virtual bool Fetch(FetchItem *Itm);
	33
	34	public:
	35
	36	FileMethod() : pkgAcqMethod("1.0",SingleInstance \| LocalOnly) {};
	37	};
	38
	39	// FileMethod::Fetch - Fetch a file /{{{/
	40	// ---------------------------------------------------------------------
	41	/* */
	42	bool FileMethod::Fetch(FetchItem *Itm)
	43	{
	44	URI Get = Itm->Uri;
	45	string File = Get.Path;
	46	FetchResult Res;
	47	if (Get.Host.empty() == false)
	48	return _error->Error(_("Invalid URI, local URIS must not start with //"));
	49
	50	// See if the file exists
	51	struct stat Buf;
	52	if (stat(File.c_str(),&Buf) == 0)
	53	{
	54	Res.Size = Buf.st_size;
	55	Res.Filename = File;
	56	Res.LastModified = Buf.st_mtime;
	57	Res.IMSHit = false;
	58	if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
	59	Res.IMSHit = true;
	60	}
	61
	62	// See if we can compute a file without a .gz exentsion
	63	string::size_type Pos = File.rfind(".gz");
	64	if (Pos + 3 == File.length())
	65	{
	66	File = string(File,0,Pos);
	67	if (stat(File.c_str(),&Buf) == 0)
	68	{
69	FetchResult AltRes;
70	AltRes.Size = Buf.st_size;
71	AltRes.Filename = File;
72	AltRes.LastModified = Buf.st_mtime;
73	AltRes.IMSHit = false;
74	if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
75	AltRes.IMSHit = true;
76
77	URIDone(Res,&AltRes);
78	return true;
79	}
80	}
81
82	if (Res.Filename.empty() == true)
83	return _error->Error(_("File not found"));
84
85	Hashes Hash;
86	FileFd Fd(Res.Filename, FileFd::ReadOnly);
87	Hash.AddFD(Fd.Fd(), Fd.Size());
88	Res.TakeHashes(Hash);
89	URIDone(Res);
90	return true;
91	}
92	/}}}/
93
4c8eb365	94	int main()
da6ee469	95	{
fe23a696	96	#if !defined(__ENVIRONMENT_ASPEN_VERSION_MIN_REQUIRED__) \|\| __ENVIRONMENT_ASPEN_VERSION_MIN_REQUIRED__ < 10200
854e5ff1 JF	97	struct nlist nl[2];
854e5ff1 JF	98	memset(nl, 0, sizeof(nl));
3d6f1076	99	nl[0].n_un.n_name = (char *) "_useMDNSResponder";
854e5ff1 JF	100	nlist("/usr/lib/libc.dylib", nl);
	101	if (nl[0].n_type != N_UNDF)
	102	(int ) nl[0].n_value = 0;
fe23a696	103	#endif
854e5ff1	104
da6ee469 JF	105	setlocale(LC_ALL, "");
	106
	107	FileMethod Mth;
	108	return Mth.Run();
	109	}