#include <apt-pkg/acquire.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
+#include <apt-pkg/sourcelist.h>
#include <fstream>
#include <iostream>
#include <stdarg.h>
#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
using namespace std;
#include "mirror.h"
#include "http.h"
-
+#include "apti18n.h"
/*}}}*/
-/*
+/* Done:
+ * - works with http (only!)
+ * - always picks the first mirror from the list
+ * - call out to problem reporting script
+ * - supports "deb mirror://host/path/to/mirror-list/// dist component"
+ * - uses pkgAcqMethod::FailReason() to have a string representation
+ * of the failure that is also send to LP
+ *
* TODO:
- * - send expected checksum to the mirror method so that
- some checking/falling back can be done here already
- * - keep the mirror file around in /var/lib/apt/mirrors
- * can't be put into lists/ because of the listclearer
- * cleanup by time (mtime relative to the other mtimes)
- * - use a TTL time the mirror file is fetched again (6h?)
* - deal with runing as non-root because we can't write to the lists
dir then -> use the cached mirror file
* - better method to download than having a pkgAcquire interface here
- * - magicmarker is (a bit) evil
+ * and better error handling there!
+ * - support more than http
* - testing :)
*/
MirrorMethod::MirrorMethod()
: HttpMethod(), HasMirrorFile(false)
{
-#if 0
- HasMirrorFile=true;
- BaseUri="mirror://people.ubuntu.com/~mvo/mirror/mirrors";
- MirrorFile="/var/lib/apt/lists/people.ubuntu.com_%7emvo_apt_mirror_mirrors";
- Mirror="http://de.archive.ubuntu.com/ubuntu/";
-#endif
};
// HttpMethod::Configuration - Handle a configuration message /*{{{*/
/*}}}*/
// clean the mirrors dir based on ttl information
-bool MirrorMethod::Clean(string dir)
+bool MirrorMethod::Clean(string Dir)
{
+ vector<metaIndex *>::const_iterator I;
+
+ if(Debug)
+ clog << "MirrorMethod::Clean(): " << Dir << endl;
+
+ // read sources.list
+ pkgSourceList list;
+ list.ReadMainList();
+
+ DIR *D = opendir(Dir.c_str());
+ if (D == 0)
+ return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
+
+ string StartDir = SafeGetCWD();
+ if (chdir(Dir.c_str()) != 0)
+ {
+ closedir(D);
+ return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
+ }
+
+ for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
+ {
+ // Skip some files..
+ if (strcmp(Dir->d_name,"lock") == 0 ||
+ strcmp(Dir->d_name,"partial") == 0 ||
+ strcmp(Dir->d_name,".") == 0 ||
+ strcmp(Dir->d_name,"..") == 0)
+ continue;
+
+ // see if we have that uri
+ for(I=list.begin(); I != list.end(); I++)
+ {
+ string uri = (*I)->GetURI();
+ if(uri.substr(0,strlen("mirror://")) != string("mirror://"))
+ continue;
+ string BaseUri = uri.substr(0,uri.size()-1);
+ if (URItoFileName(BaseUri) == Dir->d_name)
+ break;
+ }
+ // nothing found, nuke it
+ if (I == list.end())
+ unlink(Dir->d_name);
+ };
+ chdir(StartDir.c_str());
+ closedir(D);
+ return true;
}
-bool MirrorMethod::GetMirrorFile(string uri)
+bool MirrorMethod::GetMirrorFile(string mirror_uri_str)
{
- string Marker = _config->Find("Acquire::Mirror::MagicMarker","///");
- BaseUri = uri.substr(0,uri.find(Marker));
+ /*
+ - a mirror_uri_str looks like this:
+ mirror://people.ubuntu.com/~mvo/apt/mirror/mirrors/dists/feisty/Release.gpg
+
+ - the matching source.list entry
+ deb mirror://people.ubuntu.com/~mvo/apt/mirror/mirrors feisty main
+
+ - we actually want to go after:
+ http://people.ubuntu.com/~mvo/apt/mirror/mirrors
+
+ And we need to save the BaseUri for later:
+ - mirror://people.ubuntu.com/~mvo/apt/mirror/mirrors
+ FIXME: what if we have two similar prefixes?
+ mirror://people.ubuntu.com/~mvo/mirror
+ mirror://people.ubuntu.com/~mvo/mirror2
+ then mirror_uri_str looks like:
+ mirror://people.ubuntu.com/~mvo/apt/mirror/dists/feisty/Release.gpg
+ mirror://people.ubuntu.com/~mvo/apt/mirror2/dists/feisty/Release.gpg
+ we search sources.list and find:
+ mirror://people.ubuntu.com/~mvo/apt/mirror
+ in both cases! So we need to apply some domain knowledge here :( and
+ check for /dists/ or /Release.gpg as suffixes
+ */
+ if(Debug)
+ std::cerr << "GetMirrorFile: " << mirror_uri_str << std::endl;
+
+ // read sources.list and find match
+ vector<metaIndex *>::const_iterator I;
+ pkgSourceList list;
+ list.ReadMainList();
+ for(I=list.begin(); I != list.end(); I++)
+ {
+ string uristr = (*I)->GetURI();
+ if(Debug)
+ std::cerr << "Checking: " << uristr << std::endl;
+ if(uristr.substr(0,strlen("mirror://")) != string("mirror://"))
+ continue;
+ // find matching uri in sources.list
+ if(mirror_uri_str.substr(0,uristr.size()) == uristr)
+ {
+ if(Debug)
+ std::cerr << "found BaseURI: " << uristr << std::endl;
+ BaseUri = uristr.substr(0,uristr.size()-1);
+ }
+ }
string fetch = BaseUri;
fetch.replace(0,strlen("mirror://"),"http://");
+ // get new file
MirrorFile = _config->FindDir("Dir::State::mirrors") + URItoFileName(BaseUri);
if(Debug)
return true;
}
if(Debug)
- clog << "Mirror file " << MirrorFile << " older than " << refresh << ", re-download it" << endl;
+ clog << "Mirror file " << MirrorFile << " older than " << refresh << "min, re-download it" << endl;
}
// not that great to use pkgAcquire here, but we do not have
getline(in, Mirror);
if(Debug)
cerr << "Using mirror: " << Mirror << endl;
+
+ UsedMirror = Mirror;
return true;
}
// select mirror only once per session
if(!HasMirrorFile)
{
+ Clean(_config->FindDir("Dir::State::mirrors"));
GetMirrorFile(Itm->Uri);
SelectMirror();
}
projects / apt.git / blobdiff