X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/893d3e85b98124fc28002be5584b685324646037..baec76f5f0f9fcbd71f6e2afaa7fc85543bd624c:/methods/cdrom.cc

diff --git a/methods/cdrom.cc b/methods/cdrom.cc
index 601bc11c9..87a58e948 100644
--- a/methods/cdrom.cc
+++ b/methods/cdrom.cc
@@ -8,15 +8,21 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
-#include <apt-pkg/acquire-method.h>
+#include <config.h>
+
+#include <apt-pkg/cdrom.h>
 #include <apt-pkg/cdromutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/strutl.h>
 #include <apt-pkg/hashes.h>
 
+#include "aptmethod.h"
+
+#include <string>
+#include <vector>
 #include <sys/stat.h>
-#include <unistd.h>
 
 #include <iostream>
 #include <apti18n.h>
@@ -24,18 +30,23 @@
 
 using namespace std;
 
-class CDROMMethod : public pkgAcqMethod
+class CDROMMethod : public aptMethod
 {
    bool DatabaseLoaded;
+   bool Debug;
+
    ::Configuration Database;
    string CurrentID;
    string CDROM;
    bool MountedByApt;
-   
-   virtual bool Fetch(FetchItem *Itm);
+   pkgUdevCdromDevices UdevCdroms;
+ 
+   bool IsCorrectCD(URI want, string MountPath, string& NewID);
+   bool AutoDetectAndMount(const URI, string &NewID);
+   virtual bool Fetch(FetchItem *Itm) APT_OVERRIDE;
    string GetID(string Name);
-   virtual void Exit();
-   
+   virtual void Exit() APT_OVERRIDE;
+      
    public:
    
    CDROMMethod();
@@ -44,20 +55,22 @@ class CDROMMethod : public pkgAcqMethod
 // CDROMMethod::CDROMethod - Constructor				/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-CDROMMethod::CDROMMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly |
+CDROMMethod::CDROMMethod() : aptMethod("cdrom", "1.0",SingleInstance | LocalOnly |
 					  SendConfig | NeedsCleanup |
-					  Removable), 
-                                          DatabaseLoaded(false), 
+					  Removable),
+                                          DatabaseLoaded(false),
+					  Debug(false),
                                           MountedByApt(false)
 {
-};
+   UdevCdroms.Dlopen();
+}
 									/*}}}*/
 // CDROMMethod::Exit - Unmount the disc if necessary			/*{{{*/
 // ---------------------------------------------------------------------
 /* */
 void CDROMMethod::Exit()
-{
-   if (MountedByApt == true)
+{ 
+  if (MountedByApt == true)
       UnmountCdrom(CDROM);
 }
 									/*}}}*/
@@ -81,16 +94,93 @@ string CDROMMethod::GetID(string Name)
    return string();
 }
 									/*}}}*/
+// CDROMMethod::AutoDetectAndMount                                      /*{{{*/
+// ---------------------------------------------------------------------
+/* Modifies class varaiable 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;
    string File = Get.Path;
-   FetchResult Res;
+   Debug = DebugEnabled();
 
-   bool Debug = _config->FindB("Debug::Acquire::cdrom",false);
+   if (Debug)
+      clog << "CDROMMethod::Fetch " << Itm->Uri << endl;
 
    /* All IMS queries are returned as a hit, CDROMs are readonly so 
       time stamps never change */
@@ -126,38 +216,32 @@ bool CDROMMethod::Fetch(FetchItem *Itm)
    }
 
    // We already have a CD inserted, but it is the wrong one
-   if (CurrentID.empty() == false && Database.Find("CD::" + CurrentID) != Get.Host)
+   if (CurrentID.empty() == false && 
+       CurrentID != "FAIL" &&
+       Database.Find("CD::" + CurrentID) != Get.Host)
    {
       Fail(_("Wrong CD-ROM"),true);
       return true;
    }
-   
-   CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
+
+   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)
    {
-      bool Hit = false;
+      if (AutoDetect)
+	 AutoDetectAndMount(Get, NewID);
+
       if(!IsMounted(CDROM))
 	 MountedByApt = MountCdrom(CDROM);
-      for (unsigned int Version = 2; Version != 0; Version--)
-      {
-	 if (IdentCdrom(CDROM,NewID,Version) == false)
-	    return false;
-	 
-	 if (Debug == true)
-	    clog << "ID " << Version << " " << NewID << endl;
       
-	 // A hit
-	 if (Database.Find("CD::" + NewID) == Get.Host)
-	 {
-	    Hit = true;
-	    break;
-	 }	 
-      }
-
-      if (Hit == true)
+      if (IsCorrectCD(Get, CDROM, NewID))
 	 break;
 	 
       // I suppose this should prompt somehow?
@@ -177,15 +261,16 @@ bool CDROMMethod::Fetch(FetchItem *Itm)
    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;
+   Hashes Hash(Itm->ExpectedHashes);
    FileFd Fd(Res.Filename, FileFd::ReadOnly);
-   Hash.AddFD(Fd.Fd(), Fd.Size());
+   Hash.AddFD(Fd);
    Res.TakeHashes(Hash);
 
    URIDone(Res);
@@ -195,8 +280,6 @@ bool CDROMMethod::Fetch(FetchItem *Itm)
 
 int main()
 {
-   setlocale(LC_ALL, "");
-
-   CDROMMethod Mth;
-   return Mth.Run();
+   _config->CndSet("Binary::cdrom::Debug::NoDropPrivs", true);
+   return CDROMMethod().Run();
 }