[apt.git] / methods / https.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: http.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $
/* ######################################################################

   HTTPS Acquire Method - This is the HTTPS aquire method for APT.
   
   It uses libcurl

   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <apt-pkg/fileutl.h>
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/netrc.h>

#include <sys/stat.h>
#include <sys/time.h>
#include <utime.h>
#include <unistd.h>
#include <signal.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <iostream>
#include <apti18n.h>
#include <sstream>

#include "config.h"
#include "https.h"

									/*}}}*/
using namespace std;

size_t 
HttpsMethod::write_data(void *buffer, size_t size, size_t nmemb, void *userp)
{
   HttpsMethod *me = (HttpsMethod *)userp;

   if(me->File->Write(buffer, size*nmemb) != true)
      return false;

   return size*nmemb;
}

int 
HttpsMethod::progress_callback(void *clientp, double dltotal, double dlnow, 
			      double ultotal, double ulnow)
{
   HttpsMethod *me = (HttpsMethod *)clientp;
   if(dltotal > 0 && me->Res.Size == 0) {
      me->Res.Size = (unsigned long)dltotal;
      me->URIStart(me->Res);
   }
   return 0;
}

void HttpsMethod::SetupProxy()
{
   URI ServerName = Queue->Uri;

   // Determine the proxy setting
   string SpecificProxy = _config->Find("Acquire::http::Proxy::" + ServerName.Host);
   if (!SpecificProxy.empty())
   {
	   if (SpecificProxy == "DIRECT")
		   Proxy = "";
	   else
		   Proxy = SpecificProxy;
   }
   else
   {
	   string DefProxy = _config->Find("Acquire::http::Proxy");
	   if (!DefProxy.empty())
	   {
		   Proxy = DefProxy;
	   }
	   else
	   {
		   char* result = getenv("http_proxy");
		   Proxy = result ? result : "";
	   }
   }
   
   // Parse no_proxy, a , separated list of domains
   if (getenv("no_proxy") != 0)
   {
      if (CheckDomainList(ServerName.Host,getenv("no_proxy")) == true)
	 Proxy = "";
   }
   
   // Determine what host and port to use based on the proxy settings
   string Host;   
   if (Proxy.empty() == true || Proxy.Host.empty() == true)
   {
   }
   else
   {
      if (Proxy.Port != 0)
	 curl_easy_setopt(curl, CURLOPT_PROXYPORT, Proxy.Port);
      curl_easy_setopt(curl, CURLOPT_PROXY, Proxy.Host.c_str());
   }
}


// HttpsMethod::Fetch - Fetch an item					/*{{{*/
// ---------------------------------------------------------------------
/* This adds an item to the pipeline. We keep the pipeline at a fixed
   depth. */
bool HttpsMethod::Fetch(FetchItem *Itm)
{
   stringstream ss;
   struct stat SBuf;
   struct curl_slist *headers=NULL;  
   char curl_errorstr[CURL_ERROR_SIZE];
   long curl_responsecode;
   URI Uri = Itm->Uri;
   string remotehost = Uri.Host;

   // TODO:
   //       - http::Pipeline-Depth
   //       - error checking/reporting
   //       - more debug options? (CURLOPT_DEBUGFUNCTION?)

   curl_easy_reset(curl);
   SetupProxy();

   maybe_add_auth (Uri, _config->FindFile("Dir::Etc::netrc"));

   // callbacks
   curl_easy_setopt(curl, CURLOPT_URL, static_cast<string>(Uri).c_str());
   curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
   curl_easy_setopt(curl, CURLOPT_WRITEDATA, this);
   curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
   curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, this);
   curl_easy_setopt(curl, CURLOPT_NOPROGRESS, false);
   curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
   curl_easy_setopt(curl, CURLOPT_FILETIME, true);

   // SSL parameters are set by default to the common (non mirror-specific) value
   // if available (or a default one) and gets overload by mirror-specific ones.

   // File containing the list of trusted CA.
   string cainfo = _config->Find("Acquire::https::CaInfo","");
   string knob = "Acquire::https::"+remotehost+"::CaInfo";
   cainfo = _config->Find(knob.c_str(),cainfo.c_str());
   if(cainfo != "")
      curl_easy_setopt(curl, CURLOPT_CAINFO,cainfo.c_str());

   // Check server certificate against previous CA list ...
   bool peer_verify = _config->FindB("Acquire::https::Verify-Peer",true);
   knob = "Acquire::https::" + remotehost + "::Verify-Peer";
   peer_verify = _config->FindB(knob.c_str(), peer_verify);
   curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, peer_verify);

   // ... and hostname against cert CN or subjectAltName
   int default_verify = 2;
   bool verify = _config->FindB("Acquire::https::Verify-Host",true);
   knob = "Acquire::https::"+remotehost+"::Verify-Host";
   verify = _config->FindB(knob.c_str(),verify);
   if (!verify)
      default_verify = 0;
   curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, verify);

   // For client authentication, certificate file ...
   string pem = _config->Find("Acquire::https::SslCert","");
   knob = "Acquire::https::"+remotehost+"::SslCert";
   pem = _config->Find(knob.c_str(),pem.c_str());
   if(pem != "")
      curl_easy_setopt(curl, CURLOPT_SSLCERT, pem.c_str());

   // ... and associated key.
   string key = _config->Find("Acquire::https::SslKey","");
   knob = "Acquire::https::"+remotehost+"::SslKey";
   key = _config->Find(knob.c_str(),key.c_str());
   if(key != "")
      curl_easy_setopt(curl, CURLOPT_SSLKEY, key.c_str());

   // Allow forcing SSL version to SSLv3 or TLSv1 (SSLv2 is not
   // supported by GnuTLS).
   long final_version = CURL_SSLVERSION_DEFAULT;
   string sslversion = _config->Find("Acquire::https::SslForceVersion","");
   knob = "Acquire::https::"+remotehost+"::SslForceVersion";
   sslversion = _config->Find(knob.c_str(),sslversion.c_str());
   if(sslversion == "TLSv1")
     final_version = CURL_SSLVERSION_TLSv1;
   else if(sslversion == "SSLv3")
     final_version = CURL_SSLVERSION_SSLv3;
   curl_easy_setopt(curl, CURLOPT_SSLVERSION, final_version);

   // cache-control
   if(_config->FindB("Acquire::http::No-Cache",false) == false)
   {
      // cache enabled
      if (_config->FindB("Acquire::http::No-Store",false) == true)
	 headers = curl_slist_append(headers,"Cache-Control: no-store");
      ioprintf(ss, "Cache-Control: max-age=%u", _config->FindI("Acquire::http::Max-Age",0));
      headers = curl_slist_append(headers, ss.str().c_str());
   } else {
      // cache disabled by user
      headers = curl_slist_append(headers, "Cache-Control: no-cache");
      headers = curl_slist_append(headers, "Pragma: no-cache");
   }
   curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

   // speed limit
   int dlLimit = _config->FindI("Acquire::http::Dl-Limit",0)*1024;
   if (dlLimit > 0)
      curl_easy_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, dlLimit);

   // set header
   curl_easy_setopt(curl, CURLOPT_USERAGENT,"Debian APT-CURL/1.0 ("VERSION")");

   // set timeout
   int timeout = _config->FindI("Acquire::http::Timeout",120);
   curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, timeout);
   //set really low lowspeed timeout (see #497983)
   curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, DL_MIN_SPEED);
   curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, timeout);

   // set redirect options and default to 10 redirects
   bool AllowRedirect = _config->FindI("Acquire::https::AllowRedirect", true);
   curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, AllowRedirect);
   curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 10);

   // debug
   if(_config->FindB("Debug::Acquire::https", false))
      curl_easy_setopt(curl, CURLOPT_VERBOSE, true);

   // error handling
   curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr);

   // if we have the file send an if-range query with a range header
   if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
   {
      char Buf[1000];
      sprintf(Buf,"Range: bytes=%li-\r\nIf-Range: %s\r\n",
	      (long)SBuf.st_size - 1,
	      TimeRFC1123(SBuf.st_mtime).c_str());
      headers = curl_slist_append(headers, Buf);
   } 
   else if(Itm->LastModified > 0)
   {
      curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
      curl_easy_setopt(curl, CURLOPT_TIMEVALUE, Itm->LastModified);
   }

   // go for it - if the file exists, append on it
   File = new FileFd(Itm->DestFile, FileFd::WriteAny);
   if (File->Size() > 0)
      File->Seek(File->Size() - 1);
   
   // keep apt updated
   Res.Filename = Itm->DestFile;

   // get it!
   CURLcode success = curl_easy_perform(curl);
   curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &curl_responsecode);

   long curl_servdate;
   curl_easy_getinfo(curl, CURLINFO_FILETIME, &curl_servdate);

   // cleanup
   if(success != 0) 
   {
      _error->Error("%s", curl_errorstr);
      Fail();
      return true;
   }
   File->Close();

   // Timestamp
   struct utimbuf UBuf;
   if (curl_servdate != -1) {
       UBuf.actime = curl_servdate;
       UBuf.modtime = curl_servdate;
       utime(File->Name().c_str(),&UBuf);
   }

   // check the downloaded result
   struct stat Buf;
   if (stat(File->Name().c_str(),&Buf) == 0)
   {
      Res.Filename = File->Name();
      Res.LastModified = Buf.st_mtime;
      Res.IMSHit = false;
      if (curl_responsecode == 304)
      {
	 unlink(File->Name().c_str());
	 Res.IMSHit = true;
	 Res.LastModified = Itm->LastModified;
	 Res.Size = 0;
	 URIDone(Res);
	 return true;
      }
      Res.Size = Buf.st_size;
   }

   // take hashes
   Hashes Hash;
   FileFd Fd(Res.Filename, FileFd::ReadOnly);
   Hash.AddFD(Fd.Fd(), Fd.Size());
   Res.TakeHashes(Hash);
   
   // keep apt updated
   URIDone(Res);

   // cleanup
   Res.Size = 0;
   delete File;
   curl_slist_free_all(headers);

   return true;
};

int main()
{
   setlocale(LC_ALL, "");

   HttpsMethod Mth;
   curl_global_init(CURL_GLOBAL_SSL) ;

   return Mth.Run();
}
Commit	Line	Data
d546f98d MV	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	// $Id: http.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $
	4	/* ######################################################################
	5
ae58a985	6	HTTPS Acquire Method - This is the HTTPS aquire method for APT.
d546f98d MV	7
	8	It uses libcurl
	9
	10	##################################################################### */
	11	/}}}/
	12	// Include Files /{{{/
	13	#include <apt-pkg/fileutl.h>
	14	#include <apt-pkg/acquire-method.h>
	15	#include <apt-pkg/error.h>
	16	#include <apt-pkg/hashes.h>
592b7800	17	#include <apt-pkg/netrc.h>
d546f98d MV	18
	19	#include <sys/stat.h>
	20	#include <sys/time.h>
	21	#include <utime.h>
	22	#include <unistd.h>
	23	#include <signal.h>
	24	#include <stdio.h>
	25	#include <errno.h>
	26	#include <string.h>
	27	#include <iostream>
	28	#include <apti18n.h>
	29	#include <sstream>
	30
	31	#include "config.h"
	32	#include "https.h"
	33
	34	/}}}/
	35	using namespace std;
	36
	37	size_t
	38	HttpsMethod::write_data(void buffer, size_t size, size_t nmemb, void userp)
	39	{
	40	HttpsMethod me = (HttpsMethod )userp;
	41
	42	if(me->File->Write(buffer, size*nmemb) != true)
	43	return false;
	44
	45	return size*nmemb;
	46	}
	47
	48	int
	49	HttpsMethod::progress_callback(void *clientp, double dltotal, double dlnow,
	50	double ultotal, double ulnow)
	51	{
	52	HttpsMethod me = (HttpsMethod )clientp;
	53	if(dltotal > 0 && me->Res.Size == 0) {
21fd1746	54	me->Res.Size = (unsigned long)dltotal;
d546f98d MV	55	me->URIStart(me->Res);
	56	}
	57	return 0;
	58	}
	59
21fd1746	60	void HttpsMethod::SetupProxy()
d546f98d MV	61	{
	62	URI ServerName = Queue->Uri;
	63
	64	// Determine the proxy setting
788a8f42 EL	65	string SpecificProxy = _config->Find("Acquire::http::Proxy::" + ServerName.Host);
788a8f42 EL	66	if (!SpecificProxy.empty())
d546f98d	67	{
788a8f42 EL	68	if (SpecificProxy == "DIRECT")
	69	Proxy = "";
	70	else
	71	Proxy = SpecificProxy;
	72	}
	73	else
	74	{
	75	string DefProxy = _config->Find("Acquire::http::Proxy");
	76	if (!DefProxy.empty())
	77	{
	78	Proxy = DefProxy;
	79	}
	80	else
	81	{
	82	char* result = getenv("http_proxy");
	83	Proxy = result ? result : "";
	84	}
d546f98d MV	85	}
	86
	87	// Parse no_proxy, a , separated list of domains
	88	if (getenv("no_proxy") != 0)
	89	{
	90	if (CheckDomainList(ServerName.Host,getenv("no_proxy")) == true)
	91	Proxy = "";
	92	}
	93
	94	// Determine what host and port to use based on the proxy settings
d546f98d MV	95	string Host;
	96	if (Proxy.empty() == true \|\| Proxy.Host.empty() == true)
	97	{
	98	}
	99	else
	100	{
	101	if (Proxy.Port != 0)
	102	curl_easy_setopt(curl, CURLOPT_PROXYPORT, Proxy.Port);
	103	curl_easy_setopt(curl, CURLOPT_PROXY, Proxy.Host.c_str());
	104	}
	105	}
	106
	107
	108	// HttpsMethod::Fetch - Fetch an item /{{{/
	109	// ---------------------------------------------------------------------
	110	/* This adds an item to the pipeline. We keep the pipeline at a fixed
	111	depth. */
	112	bool HttpsMethod::Fetch(FetchItem *Itm)
	113	{
	114	stringstream ss;
	115	struct stat SBuf;
	116	struct curl_slist *headers=NULL;
714ee06c	117	char curl_errorstr[CURL_ERROR_SIZE];
4c499611	118	long curl_responsecode;
c769cd6f MV	119	URI Uri = Itm->Uri;
c769cd6f MV	120	string remotehost = Uri.Host;
d546f98d MV	121
d546f98d MV	122	// TODO:
d546f98d MV	123	// - http::Pipeline-Depth
	124	// - error checking/reporting
	125	// - more debug options? (CURLOPT_DEBUGFUNCTION?)
	126
5820530d	127	curl_easy_reset(curl);
d546f98d MV	128	SetupProxy();
d546f98d MV	129
1de1f703	130	maybe_add_auth (Uri, _config->FindFile("Dir::Etc::netrc"));
592b7800	131
d546f98d	132	// callbacks
01fc8930	133	curl_easy_setopt(curl, CURLOPT_URL, static_cast<string>(Uri).c_str());
d546f98d MV	134	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
	135	curl_easy_setopt(curl, CURLOPT_WRITEDATA, this);
	136	curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
	137	curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, this);
	138	curl_easy_setopt(curl, CURLOPT_NOPROGRESS, false);
	139	curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
5820530d	140	curl_easy_setopt(curl, CURLOPT_FILETIME, true);
d546f98d	141
c769cd6f MV	142	// SSL parameters are set by default to the common (non mirror-specific) value
	143	// if available (or a default one) and gets overload by mirror-specific ones.
	144
	145	// File containing the list of trusted CA.
	146	string cainfo = _config->Find("Acquire::https::CaInfo","");
	147	string knob = "Acquire::https::"+remotehost+"::CaInfo";
	148	cainfo = _config->Find(knob.c_str(),cainfo.c_str());
	149	if(cainfo != "")
	150	curl_easy_setopt(curl, CURLOPT_CAINFO,cainfo.c_str());
	151
	152	// Check server certificate against previous CA list ...
	153	bool peer_verify = _config->FindB("Acquire::https::Verify-Peer",true);
	154	knob = "Acquire::https::" + remotehost + "::Verify-Peer";
	155	peer_verify = _config->FindB(knob.c_str(), peer_verify);
714ee06c MV	156	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, peer_verify);
714ee06c MV	157
c769cd6f MV	158	// ... and hostname against cert CN or subjectAltName
	159	int default_verify = 2;
	160	bool verify = _config->FindB("Acquire::https::Verify-Host",true);
	161	knob = "Acquire::https::"+remotehost+"::Verify-Host";
	162	verify = _config->FindB(knob.c_str(),verify);
	163	if (!verify)
	164	default_verify = 0;
	165	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, verify);
	166
	167	// For client authentication, certificate file ...
714ee06c	168	string pem = _config->Find("Acquire::https::SslCert","");
c769cd6f MV	169	knob = "Acquire::https::"+remotehost+"::SslCert";
c769cd6f MV	170	pem = _config->Find(knob.c_str(),pem.c_str());
714ee06c MV	171	if(pem != "")
714ee06c MV	172	curl_easy_setopt(curl, CURLOPT_SSLCERT, pem.c_str());
c769cd6f MV	173
	174	// ... and associated key.
	175	string key = _config->Find("Acquire::https::SslKey","");
	176	knob = "Acquire::https::"+remotehost+"::SslKey";
	177	key = _config->Find(knob.c_str(),key.c_str());
	178	if(key != "")
	179	curl_easy_setopt(curl, CURLOPT_SSLKEY, key.c_str());
	180
	181	// Allow forcing SSL version to SSLv3 or TLSv1 (SSLv2 is not
	182	// supported by GnuTLS).
	183	long final_version = CURL_SSLVERSION_DEFAULT;
	184	string sslversion = _config->Find("Acquire::https::SslForceVersion","");
	185	knob = "Acquire::https::"+remotehost+"::SslForceVersion";
	186	sslversion = _config->Find(knob.c_str(),sslversion.c_str());
	187	if(sslversion == "TLSv1")
	188	final_version = CURL_SSLVERSION_TLSv1;
	189	else if(sslversion == "SSLv3")
	190	final_version = CURL_SSLVERSION_SSLv3;
	191	curl_easy_setopt(curl, CURLOPT_SSLVERSION, final_version);
d546f98d MV	192
	193	// cache-control
	194	if(_config->FindB("Acquire::http::No-Cache",false) == false)
	195	{
	196	// cache enabled
	197	if (_config->FindB("Acquire::http::No-Store",false) == true)
	198	headers = curl_slist_append(headers,"Cache-Control: no-store");
	199	ioprintf(ss, "Cache-Control: max-age=%u", _config->FindI("Acquire::http::Max-Age",0));
	200	headers = curl_slist_append(headers, ss.str().c_str());
	201	} else {
	202	// cache disabled by user
	203	headers = curl_slist_append(headers, "Cache-Control: no-cache");
	204	headers = curl_slist_append(headers, "Pragma: no-cache");
	205	}
	206	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
	207
d546f98d MV	208	// speed limit
	209	int dlLimit = _config->FindI("Acquire::http::Dl-Limit",0)*1024;
	210	if (dlLimit > 0)
	211	curl_easy_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, dlLimit);
	212
	213	// set header
	214	curl_easy_setopt(curl, CURLOPT_USERAGENT,"Debian APT-CURL/1.0 ("VERSION")");
	215
cc615257 OS	216	// set timeout
cc615257 OS	217	int timeout = _config->FindI("Acquire::http::Timeout",120);
cc615257	218	curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, timeout);
43cf55db	219	//set really low lowspeed timeout (see #497983)
5085e660	220	curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, DL_MIN_SPEED);
43cf55db	221	curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, timeout);
cc615257	222
668ce84d MV	223	// set redirect options and default to 10 redirects
	224	bool AllowRedirect = _config->FindI("Acquire::https::AllowRedirect", true);
	225	curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, AllowRedirect);
	226	curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 10);
	227
d546f98d	228	// debug
714ee06c	229	if(_config->FindB("Debug::Acquire::https", false))
d546f98d MV	230	curl_easy_setopt(curl, CURLOPT_VERBOSE, true);
d546f98d MV	231
714ee06c MV	232	// error handling
	233	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr);
	234
d6039f9e	235	// if we have the file send an if-range query with a range header
4c499611 MV	236	if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
	237	{
	238	char Buf[1000];
	239	sprintf(Buf,"Range: bytes=%li-\r\nIf-Range: %s\r\n",
	240	(long)SBuf.st_size - 1,
	241	TimeRFC1123(SBuf.st_mtime).c_str());
	242	headers = curl_slist_append(headers, Buf);
d6039f9e MV	243	}
	244	else if(Itm->LastModified > 0)
	245	{
	246	curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
	247	curl_easy_setopt(curl, CURLOPT_TIMEVALUE, Itm->LastModified);
4c499611	248	}
d546f98d MV	249
	250	// go for it - if the file exists, append on it
	251	File = new FileFd(Itm->DestFile, FileFd::WriteAny);
d6039f9e MV	252	if (File->Size() > 0)
d6039f9e MV	253	File->Seek(File->Size() - 1);
d546f98d MV	254
	255	// keep apt updated
	256	Res.Filename = Itm->DestFile;
	257
	258	// get it!
	259	CURLcode success = curl_easy_perform(curl);
4c499611	260	curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &curl_responsecode);
d546f98d	261
5820530d OS	262	long curl_servdate;
	263	curl_easy_getinfo(curl, CURLINFO_FILETIME, &curl_servdate);
	264
d546f98d	265	// cleanup
4c499611 MV	266	if(success != 0)
4c499611 MV	267	{
9b5d79ec	268	_error->Error("%s", curl_errorstr);
d546f98d MV	269	Fail();
	270	return true;
	271	}
4c499611	272	File->Close();
d546f98d	273
5820530d OS	274	// Timestamp
	275	struct utimbuf UBuf;
	276	if (curl_servdate != -1) {
	277	UBuf.actime = curl_servdate;
	278	UBuf.modtime = curl_servdate;
	279	utime(File->Name().c_str(),&UBuf);
	280	}
	281
d546f98d MV	282	// check the downloaded result
	283	struct stat Buf;
	284	if (stat(File->Name().c_str(),&Buf) == 0)
	285	{
d546f98d MV	286	Res.Filename = File->Name();
	287	Res.LastModified = Buf.st_mtime;
	288	Res.IMSHit = false;
4c499611	289	if (curl_responsecode == 304)
714ee06c	290	{
d6039f9e	291	unlink(File->Name().c_str());
d546f98d	292	Res.IMSHit = true;
714ee06c	293	Res.LastModified = Itm->LastModified;
d6039f9e MV	294	Res.Size = 0;
	295	URIDone(Res);
	296	return true;
714ee06c	297	}
d6039f9e	298	Res.Size = Buf.st_size;
d546f98d MV	299	}
	300
	301	// take hashes
	302	Hashes Hash;
	303	FileFd Fd(Res.Filename, FileFd::ReadOnly);
	304	Hash.AddFD(Fd.Fd(), Fd.Size());
	305	Res.TakeHashes(Hash);
	306
	307	// keep apt updated
	308	URIDone(Res);
	309
	310	// cleanup
d546f98d MV	311	Res.Size = 0;
	312	delete File;
	313	curl_slist_free_all(headers);
	314
	315	return true;
	316	};
	317
	318	int main()
	319	{
	320	setlocale(LC_ALL, "");
	321
	322	HttpsMethod Mth;
	323	curl_global_init(CURL_GLOBAL_SSL) ;
	324
	325	return Mth.Run();
	326	}
	327
	328