* added https transport method as optional pacakge

1 files changed, 226 insertions, 0 deletions

diff --git a/methods/https.cc b/methods/https.cc
new file mode 100644
index 000000000..06b7dff48
--- /dev/null
+++ b/methods/https.cc
@@ -0,0 +1,226 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: http.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $
+/* ######################################################################
+
+   HTTPS Aquire 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 <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 = dltotal;
+      me->URIStart(me->Res);
+   }
+   return 0;
+}
+
+bool HttpsMethod::SetupProxy()
+{
+   URI ServerName = Queue->Uri;
+
+   // Determine the proxy setting
+   if (getenv("http_proxy") == 0)
+   {
+      string DefProxy = _config->Find("Acquire::http::Proxy");
+      string SpecificProxy = _config->Find("Acquire::http::Proxy::" + ServerName.Host);
+      if (SpecificProxy.empty() == false)
+      {
+	 if (SpecificProxy == "DIRECT")
+	    Proxy = "";
+	 else
+	    Proxy = SpecificProxy;
+      }   
+      else
+	 Proxy = DefProxy;
+   }
+   
+   // 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
+   int Port = 0;
+   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;  
+
+   // TODO:
+   //       - http::Timeout
+   //       - http::Pipeline-Depth
+   //       - error checking/reporting
+   //       - more debug options? (CURLOPT_DEBUGFUNCTION?)
+
+   SetupProxy();
+
+   // callbacks
+   curl_easy_setopt(curl, CURLOPT_URL, Itm->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);
+
+   // FIXME: https: offer various options of verification
+   curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, false);
+
+   // 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);
+
+   // set time values
+   curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
+   curl_easy_setopt(curl, CURLOPT_TIMEVALUE, Itm->LastModified);
+
+   // 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")");
+
+   // debug
+   if(_config->FindB("Debug::Acquire::http", false))
+      curl_easy_setopt(curl, CURLOPT_VERBOSE, true);
+
+   // In this case we send an if-range query with a range header
+  if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
+     curl_easy_setopt(curl, CURLOPT_RESUME_FROM, (long)SBuf.st_size);
+
+   // go for it - if the file exists, append on it
+   File = new FileFd(Itm->DestFile, FileFd::WriteAny);
+   File->Seek(File->Size());
+   
+   // keep apt updated
+   Res.Filename = Itm->DestFile;
+
+   // get it!
+   CURLcode success = curl_easy_perform(curl);
+
+
+   // cleanup
+   if(success != 0) {
+      Fail();
+      return true;
+   }
+
+   if (Res.Size == 0)
+      Res.Size = File->Size();
+
+   // check the downloaded result
+   struct stat Buf;
+   if (stat(File->Name().c_str(),&Buf) == 0)
+   {
+      Res.Size = Buf.st_size;
+      Res.Filename = File->Name();
+      Res.LastModified = Buf.st_mtime;
+      Res.IMSHit = false;
+      if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
+	 Res.IMSHit = true;
+   }
+
+   // 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
+   File->Close();
+   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();
+}
+
+