* - always picks the first mirror from the list
* - call out to problem reporting script
* - supports "deb mirror://host/path/to/mirror-list/// dist component"
- * - use pkgAcqMethod::FailReason() to have a string representation
+ * - uses pkgAcqMethod::FailReason() to have a string representation
* of the failure that is also send to LP
*
* TODO:
* - 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
+ * and better error handling there!
* - support more than http
* - testing :)
*/
MirrorMethod::MirrorMethod()
- : HttpMethod(), HasMirrorFile(false)
+ : HttpMethod(), DownloadedMirrorFile(false)
{
};
if(Debug)
clog << "MirrorMethod::Clean(): " << Dir << endl;
+ if(Dir == "/")
+ return _error->Error("will not clean: '/'");
+
// read sources.list
pkgSourceList list;
list.ReadMainList();
}
-bool MirrorMethod::GetMirrorFile(string mirror_uri_str)
+bool MirrorMethod::DownloadMirrorFile(string mirror_uri_str)
+{
+ if(Debug)
+ clog << "MirrorMethod::DownloadMirrorFile(): " << endl;
+
+ // check the file, if it is not older than RefreshInterval just use it
+ // otherwise try to get a new one
+ if(FileExists(MirrorFile))
+ {
+ struct stat buf;
+ time_t t,now,refresh;
+ if(stat(MirrorFile.c_str(), &buf) != 0)
+ return false;
+ t = std::max(buf.st_mtime, buf.st_ctime);
+ now = time(NULL);
+ refresh = 60*_config->FindI("Acquire::Mirror::RefreshInterval",360);
+ if(t + refresh > now)
+ {
+ if(Debug)
+ clog << "Mirror file is in RefreshInterval" << endl;
+ DownloadedMirrorFile = true;
+ return true;
+ }
+ if(Debug)
+ clog << "Mirror file " << MirrorFile << " older than " << refresh << "min, re-download it" << 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://");
+
+ pkgAcquire Fetcher;
+ new pkgAcqFile(&Fetcher, fetch, "", 0, "", "", "", MirrorFile);
+ bool res = (Fetcher.Run() == pkgAcquire::Continue);
+ if(res)
+ DownloadedMirrorFile = true;
+ Fetcher.Shutdown();
+ return res;
+}
+
+bool MirrorMethod::SelectMirror()
+{
+ // if we do not have a MirrorFile, fallback
+ if(!FileExists(MirrorFile))
+ {
+ // FIXME: fallback to a default mirror here instead
+ // and provide a config option to define that default
+ return _error->Error(_("No mirror file '%s' found "), 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
+ // stable accross session, because otherwise we can
+ // get into sync issues (got indexfiles from mirror A,
+ // but packages from mirror B - one might be out of date etc)
+ ifstream in(MirrorFile.c_str());
+ getline(in, Mirror);
+ if(Debug)
+ cerr << "Using mirror: " << Mirror << endl;
+
+ UsedMirror = Mirror;
+ return true;
+}
+
+string MirrorMethod::GetMirrorFileName(string mirror_uri_str)
{
/*
- a mirror_uri_str looks like this:
in both cases! So we need to apply some domain knowledge here :( and
check for /dists/ or /Release.gpg as suffixes
*/
+ string name;
if(Debug)
- std::cerr << "GetMirrorFile: " << mirror_uri_str << std::endl;
+ std::cerr << "GetMirrorFileName: " << mirror_uri_str << std::endl;
// read sources.list and find match
vector<metaIndex *>::const_iterator I;
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);
+ name = _config->FindDir("Dir::State::mirrors") + URItoFileName(BaseUri);
if(Debug)
{
cerr << "base-uri: " << BaseUri << endl;
- cerr << "mirror-file: " << MirrorFile << endl;
- }
-
- // check the file, if it is not older than RefreshInterval just use it
- // otherwise try to get a new one
- if(FileExists(MirrorFile))
- {
- struct stat buf;
- time_t t,now,refresh;
- if(stat(MirrorFile.c_str(), &buf) != 0)
- return false;
- t = std::max(buf.st_mtime, buf.st_ctime);
- now = time(NULL);
- refresh = 60*_config->FindI("Acquire::Mirror::RefreshInterval",360);
- if(t + refresh > now)
- {
- if(Debug)
- clog << "Mirror file is in RefreshInterval" << endl;
- HasMirrorFile = true;
- return true;
- }
- if(Debug)
- clog << "Mirror file " << MirrorFile << " older than " << refresh << "min, re-download it" << endl;
+ cerr << "mirror-file: " << name << endl;
}
-
- // not that great to use pkgAcquire here, but we do not have
- // any other way right now
- pkgAcquire Fetcher;
- new pkgAcqFile(&Fetcher, fetch, "", 0, "", "", "", MirrorFile);
- bool res = (Fetcher.Run() == pkgAcquire::Continue);
- if(res)
- HasMirrorFile = true;
- Fetcher.Shutdown();
- return res;
-}
-
-bool MirrorMethod::SelectMirror()
-{
- // FIXME: make the mirror selection more clever, do not
- // just use the first one!
- ifstream in(MirrorFile.c_str());
- getline(in, Mirror);
- if(Debug)
- cerr << "Using mirror: " << Mirror << endl;
-
- UsedMirror = Mirror;
- return true;
+ return name;
}
// MirrorMethod::Fetch - Fetch an item /*{{{*/
depth. */
bool MirrorMethod::Fetch(FetchItem *Itm)
{
- // select mirror only once per session
- if(!HasMirrorFile)
+ if(Debug)
+ clog << "MirrorMethod::Fetch()" << endl;
+
+ // the http method uses Fetch(0) as a way to update the pipeline,
+ // just let it do its work in this case - Fetch() with a valid
+ // Itm will always run before the first Fetch(0)
+ if(Itm == NULL)
+ return HttpMethod::Fetch(Itm);
+
+ // if we don't have the name of the mirror file on disk yet,
+ // calculate it now (can be derived from the uri)
+ if(MirrorFile.empty())
+ MirrorFile = GetMirrorFileName(Itm->Uri);
+
+ // download mirror file once (if we are after index files)
+ if(Itm->IndexFile && !DownloadedMirrorFile)
{
Clean(_config->FindDir("Dir::State::mirrors"));
- GetMirrorFile(Itm->Uri);
- SelectMirror();
+ DownloadMirrorFile(Itm->Uri);
+ }
+
+ if(Mirror.empty()) {
+ if(!SelectMirror()) {
+ // no valid mirror selected, something went wrong downloading
+ // from the master mirror site most likely and there is
+ // no old mirror file availalbe
+ return false;
+ }
}
+ if(Debug)
+ clog << "selected mirror: " << Mirror << endl;
+
for (FetchItem *I = Queue; I != 0; I = I->Next)
{
if(I->Uri.find("mirror://") != string::npos)
- I->Uri.replace(0,BaseUri.size(),Mirror);
+ I->Uri.replace(0,BaseUri.size(), Mirror);
}
-
+
// now run the real fetcher
return HttpMethod::Fetch(Itm);
};
projects / apt.git / blobdiff