##################################################################### */
/*}}}*/
// Include Files /*{{{*/
+#include <config.h>
+
+#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/acquire-item.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/metaindex.h>
+#include <algorithm>
#include <fstream>
#include <iostream>
+
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/types.h>
+#include <sys/utsname.h>
#include <dirent.h>
using namespace std;
#include "mirror.h"
#include "http.h"
-#include "apti18n.h"
+#include <apti18n.h>
/*}}}*/
/* Done:
*/
MirrorMethod::MirrorMethod()
- : HttpMethod(), DownloadedMirrorFile(false)
+ : HttpMethod(), DownloadedMirrorFile(false), Debug(false)
{
};
continue;
// see if we have that uri
- for(I=list.begin(); I != list.end(); I++)
+ for(I=list.begin(); I != list.end(); ++I)
{
string uri = (*I)->GetURI();
if(uri.find("mirror://") != 0)
if (I == list.end())
unlink(Dir->d_name);
};
-
- chdir(StartDir.c_str());
+
closedir(D);
+ if (chdir(StartDir.c_str()) != 0)
+ return _error->Errno("chdir",_("Unable to change to %s"),StartDir.c_str());
return true;
}
bool MirrorMethod::DownloadMirrorFile(string mirror_uri_str)
{
- if(Debug)
- clog << "MirrorMethod::DownloadMirrorFile(): " << endl;
-
// not that great to use pkgAcquire here, but we do not have
// any other way right now
string fetch = BaseUri;
fetch.replace(0,strlen("mirror://"),"http://");
+#if 0 // no need for this, the getArchitectures() will also include the main
+ // arch
+ // append main architecture
+ fetch += "?arch=" + _config->Find("Apt::Architecture");
+#endif
+
+ // append all architectures
+ std::vector<std::string> vec = APT::Configuration::getArchitectures();
+ for (std::vector<std::string>::const_iterator I = vec.begin();
+ I != vec.end(); ++I)
+ if (I == vec.begin())
+ fetch += "?arch=" + (*I);
+ else
+ fetch += "&arch=" + (*I);
+
+ // append the dist as a query string
+ if (Dist != "")
+ fetch += "&dist=" + Dist;
+
+ if(Debug)
+ clog << "MirrorMethod::DownloadMirrorFile(): '" << fetch << "'"
+ << " to " << MirrorFile << endl;
+
pkgAcquire Fetcher;
new pkgAcqFile(&Fetcher, fetch, "", 0, "", "", "", MirrorFile);
bool res = (Fetcher.Run() == pkgAcquire::Continue);
- if(res)
+ if(res) {
DownloadedMirrorFile = true;
+ chmod(MirrorFile.c_str(), 0644);
+ }
Fetcher.Shutdown();
+
+ if(Debug)
+ clog << "MirrorMethod::DownloadMirrorFile() success: " << res << endl;
+
return res;
}
+// Randomizes the lines in the mirror file, this is used so that
+// we spread the load on the mirrors evenly
+bool MirrorMethod::RandomizeMirrorFile(string mirror_file)
+{
+ vector<string> content;
+ string line;
+
+ if (!FileExists(mirror_file))
+ return false;
+
+ // read
+ ifstream in(mirror_file.c_str());
+ while ( !in.eof() ) {
+ getline(in, line);
+ content.push_back(line);
+ }
+
+ // we want the file to be random for each different machine, but also
+ // "stable" on the same machine. this is to avoid running into out-of-sync
+ // issues (i.e. Release/Release.gpg different on each mirror)
+ struct utsname buf;
+ int seed=1, i;
+ if(uname(&buf) == 0) {
+ for(i=0,seed=1; buf.nodename[i] != 0; i++) {
+ seed = seed * 31 + buf.nodename[i];
+ }
+ }
+ srand( seed );
+ random_shuffle(content.begin(), content.end());
+
+ // write
+ ofstream out(mirror_file.c_str());
+ while ( !content.empty()) {
+ line = content.back();
+ content.pop_back();
+ out << line << "\n";
+ }
+
+ return true;
+}
+
/* convert a the Queue->Uri back to the mirror base uri and look
* at all mirrors we have for this, this is needed as queue->uri
* may point to different mirrors (if TryNextMirror() was run)
return;
// find current mirror and select next one
- for (int i=0; i < AllMirrors.size(); i++)
+ for (vector<string>::const_iterator mirror = AllMirrors.begin();
+ mirror != AllMirrors.end(); ++mirror)
{
- if (Queue->Uri.find(AllMirrors[i]) == 0)
+ if (Queue->Uri.find(*mirror) == 0)
{
- Queue->Uri.replace(0, AllMirrors[i].size(), BaseUri);
+ Queue->Uri.replace(0, mirror->length(), BaseUri);
return;
}
}
bool MirrorMethod::TryNextMirror()
{
// find current mirror and select next one
- for (int i=0; i < AllMirrors.size()-1; i++)
+ for (vector<string>::const_iterator mirror = AllMirrors.begin();
+ mirror != AllMirrors.end(); ++mirror)
{
- if (Queue->Uri.find(AllMirrors[i]) == 0)
- {
- Queue->Uri.replace(0, AllMirrors[i].size(), AllMirrors[i+1]);
- if (Debug)
- clog << "TryNextMirror: " << Queue->Uri << endl;
- return true;
- }
+ if (Queue->Uri.find(*mirror) != 0)
+ continue;
+
+ vector<string>::const_iterator nextmirror = mirror + 1;
+ if (nextmirror == AllMirrors.end())
+ break;
+ Queue->Uri.replace(0, mirror->length(), *nextmirror);
+ if (Debug)
+ clog << "TryNextMirror: " << Queue->Uri << endl;
+
+ // inform parent
+ UsedMirror = *nextmirror;
+ Log("Switching mirror");
+ return true;
}
if (Debug)
return _error->Error(_("No mirror file '%s' found "), MirrorFile.c_str());
}
+ if (access(MirrorFile.c_str(), R_OK) != 0)
+ {
+ // FIXME: fallback to a default mirror here instead
+ // and provide a config option to define that default
+ return _error->Error(_("Can not read mirror file '%s'"), MirrorFile.c_str());
+ }
+
// FIXME: make the mirror selection more clever, do not
// just use the first one!
// BUT: we can not make this random, the mirror has to be
while (!in.eof())
{
getline(in, s);
- if (s.size() > 0)
- AllMirrors.push_back(s);
+
+ // ignore lines that start with #
+ if (s.find("#") == 0)
+ continue;
+ // ignore empty lines
+ if (s.size() == 0)
+ continue;
+ // ignore non http lines
+ if (s.find("http://") != 0)
+ continue;
+
+ AllMirrors.push_back(s);
}
Mirror = AllMirrors[0];
UsedMirror = Mirror;
vector<metaIndex *>::const_iterator I;
pkgSourceList list;
list.ReadMainList();
- for(I=list.begin(); I != list.end(); I++)
+ for(I=list.begin(); I != list.end(); ++I)
{
string uristr = (*I)->GetURI();
if(Debug)
if(Debug)
std::cerr << "found BaseURI: " << uristr << std::endl;
BaseUri = uristr.substr(0,uristr.size()-1);
+ Dist = (*I)->GetDist();
}
}
// get new file
if(Itm->IndexFile && !DownloadedMirrorFile)
{
Clean(_config->FindDir("Dir::State::mirrors"));
- DownloadMirrorFile(Itm->Uri);
+ if (DownloadMirrorFile(Itm->Uri))
+ RandomizeMirrorFile(MirrorFile);
}
- if(Mirror.empty()) {
+ if(AllMirrors.empty()) {
if(!InitMirrors()) {
// no valid mirror selected, something went wrong downloading
// from the master mirror site most likely and there is
void MirrorMethod::Fail(string Err,bool Transient)
{
- // try the next mirror on fail
+ // FIXME: TryNextMirror is not ideal for indexfile as we may
+ // run into auth issues
+
+ if (Debug)
+ clog << "Failure to get " << Queue->Uri << endl;
+
+ // try the next mirror on fail (if its not a expected failure,
+ // e.g. translations are ok to ignore)
if (!Queue->FailIgnore && TryNextMirror())
return;
projects / apt.git / blobdiff