#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <apt-pkg/hashes.h>
+#include <apt-pkg/netrc.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <errno.h>
#include <string.h>
#include <iostream>
+#include <map>
#include <apti18n.h>
+
// Internet stuff
#include <netdb.h>
#include "connect.h"
#include "rfc2553emu.h"
#include "http.h"
-
/*}}}*/
using namespace std;
time_t HttpMethod::FailTime = 0;
unsigned long PipelineDepth = 10;
unsigned long TimeOut = 120;
+bool AllowRedirect = false;
bool Debug = false;
URI Proxy;
Persistent = true;
// Determine the proxy setting
- if (getenv("http_proxy") == 0)
+ string SpecificProxy = _config->Find("Acquire::http::Proxy::" + ServerName.Host);
+ if (!SpecificProxy.empty())
{
- string DefProxy = _config->Find("Acquire::http::Proxy");
- string SpecificProxy = _config->Find("Acquire::http::Proxy::" + ServerName.Host);
- if (SpecificProxy.empty() == false)
- {
- if (SpecificProxy == "DIRECT")
- Proxy = "";
- else
- Proxy = SpecificProxy;
- }
- else
- Proxy = DefProxy;
+ if (SpecificProxy == "DIRECT")
+ Proxy = "";
+ else
+ Proxy = SpecificProxy;
}
else
- Proxy = getenv("http_proxy");
+ {
+ string DefProxy = _config->Find("Acquire::http::Proxy");
+ if (!DefProxy.empty())
+ {
+ Proxy = DefProxy;
+ }
+ else
+ {
+ char* result = getenv("http_proxy");
+ Proxy = result ? result : "";
+ }
+ }
// Parse no_proxy, a , separated list of domains
if (getenv("no_proxy") != 0)
// Evil servers return no version
if (Line[4] == '/')
{
- if (sscanf(Line.c_str(),"HTTP/%u.%u %u %[^\n]",&Major,&Minor,
+ if (sscanf(Line.c_str(),"HTTP/%u.%u %u%[^\n]",&Major,&Minor,
&Result,Code) != 4)
return _error->Error(_("The HTTP server sent an invalid reply header"));
}
{
Major = 0;
Minor = 9;
- if (sscanf(Line.c_str(),"HTTP %u %[^\n]",&Result,Code) != 2)
+ if (sscanf(Line.c_str(),"HTTP %u%[^\n]",&Result,Code) != 2)
return _error->Error(_("The HTTP server sent an invalid reply header"));
}
return true;
}
+ if (stringcasecmp(Tag,"Location:") == 0)
+ {
+ Location = Val;
+ return true;
+ }
+
return true;
}
/*}}}*/
and a no-store directive for archives. */
sprintf(Buf,"GET %s HTTP/1.1\r\nHost: %s\r\n",
Itm->Uri.c_str(),ProperHost.c_str());
- // only generate a cache control header if we actually want to
- // use a cache
- if (_config->FindB("Acquire::http::No-Cache",false) == false)
+ }
+ // generate a cache control header (if needed)
+ if (_config->FindB("Acquire::http::No-Cache",false) == true)
+ {
+ strcat(Buf,"Cache-Control: no-cache\r\nPragma: no-cache\r\n");
+ }
+ else
+ {
+ if (Itm->IndexFile == true)
{
- if (Itm->IndexFile == true)
- sprintf(Buf+strlen(Buf),"Cache-Control: max-age=%u\r\n",
- _config->FindI("Acquire::http::Max-Age",0));
- else
- {
- if (_config->FindB("Acquire::http::No-Store",false) == true)
- strcat(Buf,"Cache-Control: no-store\r\n");
- }
+ sprintf(Buf+strlen(Buf),"Cache-Control: max-age=%u\r\n",
+ _config->FindI("Acquire::http::Max-Age",0));
+ }
+ else
+ {
+ if (_config->FindB("Acquire::http::No-Store",false) == true)
+ strcat(Buf,"Cache-Control: no-store\r\n");
}
}
- // generate a no-cache header if needed
- if (_config->FindB("Acquire::http::No-Cache",false) == true)
- strcat(Buf,"Cache-Control: no-cache\r\nPragma: no-cache\r\n");
string Req = Buf;
Req += string("Proxy-Authorization: Basic ") +
Base64Encode(Proxy.User + ":" + Proxy.Password) + "\r\n";
+ maybe_add_auth (Uri, _config->FindFile("Dir::Etc::netrc"));
if (Uri.User.empty() == false || Uri.Password.empty() == false)
+ {
Req += string("Authorization: Basic ") +
Base64Encode(Uri.User + ":" + Uri.Password) + "\r\n";
-
- Req += "User-Agent: Debian APT-HTTP/1.3 ("VERSION")\r\n\r\n";
+ }
+ Req += "User-Agent: " + _config->Find("Acquire::http::User-Agent",
+ "Ubuntu APT-HTTP/1.3 ("VERSION")") + "\r\n\r\n";
if (Debug == true)
cerr << Req << endl;
1 - IMS hit
3 - Unrecoverable error
4 - Error with error content page
- 5 - Unrecoverable non-server error (close the connection) */
+ 5 - Unrecoverable non-server error (close the connection)
+ 6 - Try again with a new or changed URI
+ */
int HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
{
// Not Modified
return 1;
}
+ /* Redirect
+ *
+ * Note that it is only OK for us to treat all redirection the same
+ * because we *always* use GET, not other HTTP methods. There are
+ * three redirection codes for which it is not appropriate that we
+ * redirect. Pass on those codes so the error handling kicks in.
+ */
+ if (AllowRedirect
+ && (Srv->Result > 300 && Srv->Result < 400)
+ && (Srv->Result != 300 // Multiple Choices
+ && Srv->Result != 304 // Not Modified
+ && Srv->Result != 306)) // (Not part of HTTP/1.1, reserved)
+ {
+ if (!Srv->Location.empty())
+ {
+ NextURI = Srv->Location;
+ return 6;
+ }
+ /* else pass through for error message */
+ }
+
/* We have a reply we dont handle. This should indicate a perm server
failure */
if (Srv->Result < 200 || Srv->Result >= 300)
{
+ char err[255];
+ snprintf(err,sizeof(err)-1,"HttpError%i",Srv->Result);
+ SetFailReason(err);
_error->Error("%u %s",Srv->Result,Srv->Code);
if (Srv->HaveContent == true)
return 4;
depth. */
bool HttpMethod::Fetch(FetchItem *)
{
- if (Server == 0)
+ if (Server == 0)
return true;
// Queue the requests
if (pkgAcqMethod::Configuration(Message) == false)
return false;
+ AllowRedirect = _config->FindB("Acquire::http::AllowRedirect",true);
TimeOut = _config->FindI("Acquire::http::Timeout",TimeOut);
PipelineDepth = _config->FindI("Acquire::http::Pipeline-Depth",
PipelineDepth);
/* */
int HttpMethod::Loop()
{
+ typedef vector<string> StringVector;
+ typedef vector<string>::iterator StringVectorIterator;
+ map<string, StringVector> Redirected;
+
signal(SIGTERM,SigTerm);
signal(SIGINT,SigTerm);
break;
}
+ // Try again with a new URL
+ case 6:
+ {
+ // Clear rest of response if there is content
+ if (Server->HaveContent)
+ {
+ File = new FileFd("/dev/null",FileFd::WriteExists);
+ Server->RunData();
+ delete File;
+ File = 0;
+ }
+
+ /* Detect redirect loops. No more redirects are allowed
+ after the same URI is seen twice in a queue item. */
+ StringVector &R = Redirected[Queue->DestFile];
+ bool StopRedirects = false;
+ if (R.size() == 0)
+ R.push_back(Queue->Uri);
+ else if (R[0] == "STOP" || R.size() > 10)
+ StopRedirects = true;
+ else
+ {
+ for (StringVectorIterator I = R.begin(); I != R.end(); I++)
+ if (Queue->Uri == *I)
+ {
+ R[0] = "STOP";
+ break;
+ }
+
+ R.push_back(Queue->Uri);
+ }
+
+ if (StopRedirects == false)
+ Redirect(NextURI);
+ else
+ Fail();
+
+ break;
+ }
+
default:
Fail(_("Internal error"));
break;
}
/*}}}*/
-int main()
-{
- setlocale(LC_ALL, "");
-
- HttpMethod Mth;
-
- return Mth.Loop();
-}
-
projects / apt.git / blobdiff