Adding upstream version 2.7.12.upstream/2.7.12

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 289 insertions, 0 deletions

diff --git a/methods/cdrom.cc b/methods/cdrom.cc
new file mode 100644
index 0000000..f534a06
--- /dev/null
+++ b/methods/cdrom.cc
@@ -0,0 +1,289 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   CDROM URI method for APT
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/cdrom.h>
+#include <apt-pkg/cdromutl.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/strutl.h>
+
+#include "aptmethod.h"
+
+#include <string>
+#include <vector>
+#include <sys/stat.h>
+
+#include <iostream>
+#include <apti18n.h>
+									/*}}}*/
+
+using namespace std;
+
+class CDROMMethod : public aptMethod
+{
+   bool DatabaseLoaded;
+   bool Debug;
+
+   ::Configuration Database;
+   string CurrentID;
+   string CDROM;
+   bool MountedByApt;
+   pkgUdevCdromDevices UdevCdroms;
+ 
+   bool IsCorrectCD(URI want, string MountPath, string& NewID);
+   bool AutoDetectAndMount(const URI, string &NewID);
+   virtual bool Fetch(FetchItem *Itm) APT_OVERRIDE;
+   std::string GetID(std::string const &Name);
+   virtual void Exit() APT_OVERRIDE;
+   virtual bool Configuration(std::string Message) APT_OVERRIDE;
+
+   public:
+   
+   CDROMMethod();
+};
+
+// CDROMMethod::CDROMethod - Constructor				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+CDROMMethod::CDROMMethod() : aptMethod("cdrom", "1.0",SingleInstance | LocalOnly |
+					  SendConfig | NeedsCleanup |
+					  Removable | SendURIEncoded),
+                                          DatabaseLoaded(false),
+					  Debug(false),
+                                          MountedByApt(false)
+{
+}
+									/*}}}*/
+// CDROMMethod::Exit - Unmount the disc if necessary			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void CDROMMethod::Exit()
+{ 
+  if (MountedByApt == true)
+      UnmountCdrom(CDROM);
+}
+									/*}}}*/
+// CDROMMethod::GetID - Search the database for a matching string	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::string CDROMMethod::GetID(std::string const &Name)
+{
+   // Search for an ID
+   const Configuration::Item *Top = Database.Tree("CD");
+   if (Top != 0)
+      Top = Top->Child;
+   
+   for (; Top != 0;)
+   {      
+      if (Top->Value == Name)
+	 return Top->Tag;
+      
+      Top = Top->Next;
+   }
+   return string();
+}
+									/*}}}*/
+// CDROMMethod::AutoDetectAndMount                                      /*{{{*/
+// ---------------------------------------------------------------------
+/* Modifies class variable CDROM to the mountpoint */
+bool CDROMMethod::AutoDetectAndMount(const URI Get, string &NewID)
+{
+   vector<struct CdromDevice> v = UdevCdroms.Scan();
+
+   // first check if its mounted somewhere already
+   for (unsigned int i=0; i < v.size(); i++)
+   {
+      if (v[i].Mounted)
+      {
+	 if (Debug)
+	    clog << "Checking mounted cdrom device " << v[i].DeviceName << endl;
+	 if (IsCorrectCD(Get, v[i].MountPath, NewID))
+	 {
+	    CDROM = v[i].MountPath;
+	    return true;
+	 }
+      }
+   }
+
+   // we are not supposed to mount, exit
+   if (_config->FindB("APT::CDROM::NoMount",false) == true)
+      return false;
+
+   // check if we have the mount point
+   string AptMountPoint = _config->FindDir("Dir::Media::MountPath");
+   if (!FileExists(AptMountPoint))
+      mkdir(AptMountPoint.c_str(), 0750);
+
+   // now try mounting
+   for (unsigned int i=0; i < v.size(); i++)
+   {
+      if (!v[i].Mounted)
+      {
+	 if(MountCdrom(AptMountPoint, v[i].DeviceName)) 
+	 {
+	    if (IsCorrectCD(Get, AptMountPoint, NewID))
+	    {
+	       MountedByApt = true;
+	       CDROM = AptMountPoint;
+	       return true;
+	    } else {
+	       UnmountCdrom(AptMountPoint);
+	    }
+	 }
+      }
+   }
+
+   return false;
+}
+									/*}}}*/
+// CDROMMethod::IsCorrectCD                                             /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool CDROMMethod::IsCorrectCD(URI want, string MountPath, string& NewID)
+{
+   for (unsigned int Version = 2; Version != 0; Version--)
+   {
+      if (IdentCdrom(MountPath,NewID,Version) == false)
+	 return false;
+      
+      if (Debug)
+	 clog << "ID " << Version << " " << NewID << endl;
+      
+      // A hit
+      if (Database.Find("CD::" + NewID) == want.Host)
+	 return true;
+   }
+   
+   return false;
+}
+									/*}}}*/
+// CDROMMethod::Fetch - Fetch a file					/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool CDROMMethod::Fetch(FetchItem *Itm)
+{
+   FetchResult Res;
+
+   URI Get(Itm->Uri);
+   std::string const File = DecodeSendURI(Get.Path);
+   Debug = DebugEnabled();
+
+   if (Debug)
+      clog << "CDROMMethod::Fetch " << Itm->Uri << endl;
+
+   /* All IMS queries are returned as a hit, CDROMs are readonly so 
+      time stamps never change */
+   if (Itm->LastModified != 0)
+   {
+      Res.LastModified = Itm->LastModified;
+      Res.IMSHit = true;
+      Res.Filename = Itm->DestFile;
+      URIDone(Res);
+      return true;
+   }
+
+   // Load the database
+   if (DatabaseLoaded == false)
+   {
+      // Read the database
+      string DFile = _config->FindFile("Dir::State::cdroms");
+      if (FileExists(DFile) == true)
+      {
+	 if (ReadConfigFile(Database,DFile) == false)
+	    return _error->Error(_("Unable to read the cdrom database %s"),
+			  DFile.c_str());
+      }
+      DatabaseLoaded = true;
+   }
+       
+   // All non IMS queries for package files fail.
+   if (Itm->IndexFile == true || GetID(Get.Host).empty() == true)
+   {
+      Fail(_("Please use apt-cdrom to make this CD-ROM recognized by APT."
+	   " apt-get update cannot be used to add new CD-ROMs"));
+      return true;
+   }
+
+   // We already have a CD inserted, but it is the wrong one
+   if (CurrentID.empty() == false && 
+       CurrentID != "FAIL" &&
+       Database.Find("CD::" + CurrentID) != Get.Host)
+   {
+      Fail(_("Wrong CD-ROM"),true);
+      return true;
+   }
+
+   bool const AutoDetect = ConfigFindB("AutoDetect", true);
+   CDROM = _config->FindDir("Acquire::cdrom::mount");
+   if (Debug)
+      clog << "Looking for CDROM at " << CDROM << endl;
+
+   if (CDROM[0] == '.')
+      CDROM= SafeGetCWD() + '/' + CDROM;
+
+   string NewID;
+   while (CurrentID.empty() == true)
+   {
+      if (AutoDetect)
+	 AutoDetectAndMount(Get, NewID);
+
+      if(!IsMounted(CDROM))
+	 MountedByApt = MountCdrom(CDROM);
+      
+      if (IsCorrectCD(Get, CDROM, NewID))
+	 break;
+	 
+      // I suppose this should prompt somehow?
+      if (_config->FindB("APT::CDROM::NoMount",false) == false &&
+	  UnmountCdrom(CDROM) == false)
+	 return _error->Error(_("Unable to unmount the CD-ROM in %s, it may still be in use."),
+			      CDROM.c_str());
+      if (MediaFail(Get.Host,CDROM) == false)
+      {
+	 CurrentID = "FAIL";
+	 return _error->Error(_("Disk not found."));
+      }
+   }
+   
+   // Found a CD
+   Res.Filename = CDROM + File;
+   struct stat Buf;
+   if (stat(Res.Filename.c_str(),&Buf) != 0)
+      return _error->Error(_("File not found"));
+
+   URIStart(Res);
+   if (NewID.empty() == false)
+      CurrentID = NewID;
+   Res.LastModified = Buf.st_mtime;
+   Res.Size = Buf.st_size;
+
+   Hashes Hash(Itm->ExpectedHashes);
+   FileFd Fd(Res.Filename, FileFd::ReadOnly);
+   Hash.AddFD(Fd);
+   Res.TakeHashes(Hash);
+
+   URIDone(Res);
+   return true;
+}
+									/*}}}*/
+bool CDROMMethod::Configuration(std::string Message)			/*{{{*/
+{
+   _config->CndSet("Binary::cdrom::Debug::NoDropPrivs", true);
+   return aptMethod::Configuration(Message);
+}
+									/*}}}*/
+
+int main()
+{
+   return CDROMMethod().Run();
+}