+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ HTTP and HTTPS share a lot of common code and these classes are
+ exactly the dumping ground for this common code
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#include <config.h>
+
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/strutl.h>
+
+#include <ctype.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+#include <iostream>
+#include <limits>
+#include <map>
+#include <string>
+#include <vector>
+
+#include "basehttp.h"
+
+#include <apti18n.h>
+ /*}}}*/
+using namespace std;
+
+string BaseHttpMethod::FailFile;
+int BaseHttpMethod::FailFd = -1;
+time_t BaseHttpMethod::FailTime = 0;
+
+// ServerState::RunHeaders - Get the headers before the data /*{{{*/
+// ---------------------------------------------------------------------
+/* Returns 0 if things are OK, 1 if an IO error occurred and 2 if a header
+ parse error occurred */
+ServerState::RunHeadersResult ServerState::RunHeaders(RequestState &Req,
+ const std::string &Uri)
+{
+ Owner->Status(_("Waiting for headers"));
+ do
+ {
+ string Data;
+ if (ReadHeaderLines(Data) == false)
+ continue;
+
+ if (Owner->Debug == true)
+ clog << "Answer for: " << Uri << endl << Data;
+
+ for (string::const_iterator I = Data.begin(); I < Data.end(); ++I)
+ {
+ string::const_iterator J = I;
+ for (; J != Data.end() && *J != '\n' && *J != '\r'; ++J);
+ if (Req.HeaderLine(string(I,J)) == false)
+ return RUN_HEADERS_PARSE_ERROR;
+ I = J;
+ }
+
+ // 100 Continue is a Nop...
+ if (Req.Result == 100)
+ continue;
+
+ // Tidy up the connection persistence state.
+ if (Req.Encoding == RequestState::Closes && Req.HaveContent == true)
+ Persistent = false;
+
+ return RUN_HEADERS_OK;
+ }
+ while (LoadNextResponse(false, Req) == true);
+
+ return RUN_HEADERS_IO_ERROR;
+}
+ /*}}}*/
+bool RequestState::HeaderLine(string const &Line) /*{{{*/
+{
+ if (Line.empty() == true)
+ return true;
+
+ if (Line.size() > 4 && stringcasecmp(Line.data(), Line.data()+4, "HTTP") == 0)
+ {
+ // Evil servers return no version
+ if (Line[4] == '/')
+ {
+ int const elements = sscanf(Line.c_str(),"HTTP/%3u.%3u %3u%359[^\n]",&Major,&Minor,&Result,Code);
+ if (elements == 3)
+ {
+ Code[0] = '\0';
+ if (Owner != NULL && Owner->Debug == true)
+ clog << "HTTP server doesn't give Reason-Phrase for " << std::to_string(Result) << std::endl;
+ }
+ else if (elements != 4)
+ return _error->Error(_("The HTTP server sent an invalid reply header"));
+ }
+ else
+ {
+ Major = 0;
+ Minor = 9;
+ if (sscanf(Line.c_str(),"HTTP %3u%359[^\n]",&Result,Code) != 2)
+ return _error->Error(_("The HTTP server sent an invalid reply header"));
+ }
+
+ /* Check the HTTP response header to get the default persistence
+ state. */
+ if (Major < 1)
+ Server->Persistent = false;
+ else
+ {
+ if (Major == 1 && Minor == 0)
+ {
+ Server->Persistent = false;
+ }
+ else
+ {
+ Server->Persistent = true;
+ if (Server->PipelineAllowed)
+ Server->Pipeline = true;
+ }
+ }
+
+ return true;
+ }
+
+ // Blah, some servers use "connection:closes", evil.
+ // and some even send empty header fields…
+ string::size_type Pos = Line.find(':');
+ if (Pos == string::npos)
+ return _error->Error(_("Bad header line"));
+ ++Pos;
+
+ // Parse off any trailing spaces between the : and the next word.
+ string::size_type Pos2 = Pos;
+ while (Pos2 < Line.length() && isspace_ascii(Line[Pos2]) != 0)
+ Pos2++;
+
+ string const Tag(Line,0,Pos);
+ string const Val(Line,Pos2);
+
+ if (stringcasecmp(Tag,"Content-Length:") == 0)
+ {
+ if (Encoding == Closes)
+ Encoding = Stream;
+ HaveContent = true;
+
+ unsigned long long * DownloadSizePtr = &DownloadSize;
+ if (Result == 416 || (Result >= 300 && Result < 400))
+ DownloadSizePtr = &JunkSize;
+
+ *DownloadSizePtr = strtoull(Val.c_str(), NULL, 10);
+ if (*DownloadSizePtr >= std::numeric_limits<unsigned long long>::max())
+ return _error->Errno("HeaderLine", _("The HTTP server sent an invalid Content-Length header"));
+ else if (*DownloadSizePtr == 0)
+ HaveContent = false;
+
+ // On partial content (206) the Content-Length less than the real
+ // size, so do not set it here but leave that to the Content-Range
+ // header instead
+ if(Result != 206 && TotalFileSize == 0)
+ TotalFileSize = DownloadSize;
+
+ return true;
+ }
+
+ if (stringcasecmp(Tag,"Content-Type:") == 0)
+ {
+ HaveContent = true;
+ return true;
+ }
+
+ if (stringcasecmp(Tag,"Content-Range:") == 0)
+ {
+ HaveContent = true;
+
+ // §14.16 says 'byte-range-resp-spec' should be a '*' in case of 416
+ if (Result == 416 && sscanf(Val.c_str(), "bytes */%llu",&TotalFileSize) == 1)
+ ; // we got the expected filesize which is all we wanted
+ else if (sscanf(Val.c_str(),"bytes %llu-%*u/%llu",&StartPos,&TotalFileSize) != 2)
+ return _error->Error(_("The HTTP server sent an invalid Content-Range header"));
+ if ((unsigned long long)StartPos > TotalFileSize)
+ return _error->Error(_("This HTTP server has broken range support"));
+
+ // figure out what we will download
+ DownloadSize = TotalFileSize - StartPos;
+ return true;
+ }
+
+ if (stringcasecmp(Tag,"Transfer-Encoding:") == 0)
+ {
+ HaveContent = true;
+ if (stringcasecmp(Val,"chunked") == 0)
+ Encoding = Chunked;
+ return true;
+ }
+
+ if (stringcasecmp(Tag,"Connection:") == 0)
+ {
+ if (stringcasecmp(Val,"close") == 0)
+ {
+ Server->Persistent = false;
+ Server->Pipeline = false;
+ /* Some servers send error pages (as they are dynamically generated)
+ for simplicity via a connection close instead of e.g. chunked,
+ so assuming an always closing server only if we get a file + close */
+ if (Result >= 200 && Result < 300)
+ Server->PipelineAllowed = false;
+ }
+ else if (stringcasecmp(Val,"keep-alive") == 0)
+ Server->Persistent = true;
+ return true;
+ }
+
+ if (stringcasecmp(Tag,"Last-Modified:") == 0)
+ {
+ if (RFC1123StrToTime(Val.c_str(), Date) == false)
+ return _error->Error(_("Unknown date format"));
+ return true;
+ }
+
+ if (stringcasecmp(Tag,"Location:") == 0)
+ {
+ Location = Val;
+ return true;
+ }
+
+ if (stringcasecmp(Tag, "Accept-Ranges:") == 0)
+ {
+ std::string ranges = ',' + Val + ',';
+ ranges.erase(std::remove(ranges.begin(), ranges.end(), ' '), ranges.end());
+ if (ranges.find(",bytes,") == std::string::npos)
+ Server->RangesAllowed = false;
+ return true;
+ }
+
+ return true;
+}
+ /*}}}*/
+// ServerState::ServerState - Constructor /*{{{*/
+ServerState::ServerState(URI Srv, BaseHttpMethod *Owner) :
+ ServerName(Srv), TimeOut(120), Owner(Owner)
+{
+ Reset();
+}
+ /*}}}*/
+bool RequestState::AddPartialFileToHashes(FileFd &File) /*{{{*/
+{
+ File.Truncate(StartPos);
+ return Server->GetHashes()->AddFD(File, StartPos);
+}
+ /*}}}*/
+void ServerState::Reset() /*{{{*/
+{
+ Persistent = false;
+ Pipeline = false;
+ PipelineAllowed = true;
+ RangesAllowed = true;
+}
+ /*}}}*/
+
+// BaseHttpMethod::DealWithHeaders - Handle the retrieved header data /*{{{*/
+// ---------------------------------------------------------------------
+/* We look at the header data we got back from the server and decide what
+ to do. Returns DealWithHeadersResult (see http.h for details).
+ */
+BaseHttpMethod::DealWithHeadersResult
+BaseHttpMethod::DealWithHeaders(FetchResult &Res, RequestState &Req)
+{
+ // Not Modified
+ if (Req.Result == 304)
+ {
+ RemoveFile("server", Queue->DestFile);
+ Res.IMSHit = true;
+ Res.LastModified = Queue->LastModified;
+ Res.Size = 0;
+ return IMS_HIT;
+ }
+
+ /* 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
+ && (Req.Result > 300 && Req.Result < 400)
+ && (Req.Result != 300 // Multiple Choices
+ && Req.Result != 304 // Not Modified
+ && Req.Result != 306)) // (Not part of HTTP/1.1, reserved)
+ {
+ if (Req.Location.empty() == true)
+ ;
+ else if (Req.Location[0] == '/' && Queue->Uri.empty() == false)
+ {
+ URI Uri = Queue->Uri;
+ if (Uri.Host.empty() == false)
+ NextURI = URI::SiteOnly(Uri);
+ else
+ NextURI.clear();
+ NextURI.append(DeQuoteString(Req.Location));
+ if (Queue->Uri == NextURI)
+ {
+ SetFailReason("RedirectionLoop");
+ _error->Error("Redirection loop encountered");
+ if (Req.HaveContent == true)
+ return ERROR_WITH_CONTENT_PAGE;
+ return ERROR_UNRECOVERABLE;
+ }
+ return TRY_AGAIN_OR_REDIRECT;
+ }
+ else
+ {
+ NextURI = DeQuoteString(Req.Location);
+ URI tmpURI = NextURI;
+ if (tmpURI.Access.find('+') != std::string::npos)
+ {
+ _error->Error("Server tried to trick us into using a specific implementation: %s", tmpURI.Access.c_str());
+ if (Req.HaveContent == true)
+ return ERROR_WITH_CONTENT_PAGE;
+ return ERROR_UNRECOVERABLE;
+ }
+ URI Uri = Queue->Uri;
+ if (Binary.find('+') != std::string::npos)
+ {
+ auto base = Binary.substr(0, Binary.find('+'));
+ if (base != tmpURI.Access)
+ {
+ tmpURI.Access = base + '+' + tmpURI.Access;
+ if (tmpURI.Access == Binary)
+ {
+ std::string tmpAccess = Uri.Access;
+ std::swap(tmpURI.Access, Uri.Access);
+ NextURI = tmpURI;
+ std::swap(tmpURI.Access, Uri.Access);
+ }
+ else
+ NextURI = tmpURI;
+ }
+ }
+ if (Queue->Uri == NextURI)
+ {
+ SetFailReason("RedirectionLoop");
+ _error->Error("Redirection loop encountered");
+ if (Req.HaveContent == true)
+ return ERROR_WITH_CONTENT_PAGE;
+ return ERROR_UNRECOVERABLE;
+ }
+ Uri.Access = Binary;
+ // same protocol redirects are okay
+ if (tmpURI.Access == Uri.Access)
+ return TRY_AGAIN_OR_REDIRECT;
+ // as well as http to https
+ else if ((Uri.Access == "http" || Uri.Access == "https+http") && tmpURI.Access == "https")
+ return TRY_AGAIN_OR_REDIRECT;
+ else
+ {
+ auto const tmpplus = tmpURI.Access.find('+');
+ if (tmpplus != std::string::npos && tmpURI.Access.substr(tmpplus + 1) == "https")
+ {
+ auto const uriplus = Uri.Access.find('+');
+ if (uriplus == std::string::npos)
+ {
+ if (Uri.Access == tmpURI.Access.substr(0, tmpplus)) // foo -> foo+https
+ return TRY_AGAIN_OR_REDIRECT;
+ }
+ else if (Uri.Access.substr(uriplus + 1) == "http" &&
+ Uri.Access.substr(0, uriplus) == tmpURI.Access.substr(0, tmpplus)) // foo+http -> foo+https
+ return TRY_AGAIN_OR_REDIRECT;
+ }
+ }
+ _error->Error("Redirection from %s to '%s' is forbidden", Uri.Access.c_str(), NextURI.c_str());
+ }
+ /* else pass through for error message */
+ }
+ // retry after an invalid range response without partial data
+ else if (Req.Result == 416)
+ {
+ struct stat SBuf;
+ if (stat(Queue->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
+ {
+ bool partialHit = false;
+ if (Queue->ExpectedHashes.usable() == true)
+ {
+ Hashes resultHashes(Queue->ExpectedHashes);
+ FileFd file(Queue->DestFile, FileFd::ReadOnly);
+ Req.TotalFileSize = file.FileSize();
+ Req.Date = file.ModificationTime();
+ resultHashes.AddFD(file);
+ HashStringList const hashList = resultHashes.GetHashStringList();
+ partialHit = (Queue->ExpectedHashes == hashList);
+ }
+ else if ((unsigned long long)SBuf.st_size == Req.TotalFileSize)
+ partialHit = true;
+ if (partialHit == true)
+ {
+ // the file is completely downloaded, but was not moved
+ if (Req.HaveContent == true)
+ {
+ // nuke the sent error page
+ Server->RunDataToDevNull(Req);
+ Req.HaveContent = false;
+ }
+ Req.StartPos = Req.TotalFileSize;
+ Req.Result = 200;
+ }
+ else if (RemoveFile("server", Queue->DestFile))
+ {
+ NextURI = Queue->Uri;
+ return TRY_AGAIN_OR_REDIRECT;
+ }
+ }
+ }
+
+ /* We have a reply we don't handle. This should indicate a perm server
+ failure */
+ if (Req.Result < 200 || Req.Result >= 300)
+ {
+ if (_error->PendingError() == false)
+ {
+ std::string err;
+ strprintf(err, "HttpError%u", Req.Result);
+ SetFailReason(err);
+ _error->Error("%u %s", Req.Result, Req.Code);
+ }
+ if (Req.HaveContent == true)
+ return ERROR_WITH_CONTENT_PAGE;
+ return ERROR_UNRECOVERABLE;
+ }
+
+ // This is some sort of 2xx 'data follows' reply
+ Res.LastModified = Req.Date;
+ Res.Size = Req.TotalFileSize;
+ return FILE_IS_OPEN;
+}
+ /*}}}*/
+// BaseHttpMethod::SigTerm - Handle a fatal signal /*{{{*/
+// ---------------------------------------------------------------------
+/* This closes and timestamps the open file. This is necessary to get
+ resume behavoir on user abort */
+void BaseHttpMethod::SigTerm(int)
+{
+ if (FailFd == -1)
+ _exit(100);
+
+ struct timeval times[2];
+ times[0].tv_sec = FailTime;
+ times[1].tv_sec = FailTime;
+ times[0].tv_usec = times[1].tv_usec = 0;
+ utimes(FailFile.c_str(), times);
+ close(FailFd);
+
+ _exit(100);
+}
+ /*}}}*/
+// BaseHttpMethod::Fetch - Fetch an item /*{{{*/
+// ---------------------------------------------------------------------
+/* This adds an item to the pipeline. We keep the pipeline at a fixed
+ depth. */
+bool BaseHttpMethod::Fetch(FetchItem *)
+{
+ if (Server == nullptr || QueueBack == nullptr)
+ return true;
+
+ // If pipelining is disabled, we only queue 1 request
+ auto const AllowedDepth = Server->Pipeline ? PipelineDepth : 0;
+ // how deep is our pipeline currently?
+ decltype(PipelineDepth) CurrentDepth = 0;
+ for (FetchItem const *I = Queue; I != QueueBack; I = I->Next)
+ ++CurrentDepth;
+ if (CurrentDepth > AllowedDepth)
+ return true;
+
+ do {
+ // Make sure we stick with the same server
+ if (Server->Comp(QueueBack->Uri) == false)
+ break;
+
+ bool const UsableHashes = QueueBack->ExpectedHashes.usable();
+ // if we have no hashes, do at most one such request
+ // as we can't fixup pipeling misbehaviors otherwise
+ if (CurrentDepth != 0 && UsableHashes == false)
+ break;
+
+ if (UsableHashes && FileExists(QueueBack->DestFile))
+ {
+ FileFd partial(QueueBack->DestFile, FileFd::ReadOnly);
+ Hashes wehave(QueueBack->ExpectedHashes);
+ if (QueueBack->ExpectedHashes.FileSize() == partial.FileSize())
+ {
+ if (wehave.AddFD(partial) &&
+ wehave.GetHashStringList() == QueueBack->ExpectedHashes)
+ {
+ FetchResult Res;
+ Res.Filename = QueueBack->DestFile;
+ Res.ResumePoint = QueueBack->ExpectedHashes.FileSize();
+ URIStart(Res);
+ // move item to the start of the queue as URIDone will
+ // always dequeued the first item in the queue
+ if (Queue != QueueBack)
+ {
+ FetchItem *Prev = Queue;
+ for (; Prev->Next != QueueBack; Prev = Prev->Next)
+ /* look for the previous queue item */;
+ Prev->Next = QueueBack->Next;
+ QueueBack->Next = Queue;
+ Queue = QueueBack;
+ QueueBack = Prev->Next;
+ }
+ Res.TakeHashes(wehave);
+ URIDone(Res);
+ continue;
+ }
+ else
+ RemoveFile("Fetch-Partial", QueueBack->DestFile);
+ }
+ }
+ auto const Tmp = QueueBack;
+ QueueBack = QueueBack->Next;
+ SendReq(Tmp);
+ ++CurrentDepth;
+ } while (CurrentDepth <= AllowedDepth && QueueBack != nullptr);
+
+ return true;
+}
+ /*}}}*/
+// BaseHttpMethod::Loop - Main loop /*{{{*/
+int BaseHttpMethod::Loop()
+{
+ signal(SIGTERM,SigTerm);
+ signal(SIGINT,SigTerm);
+
+ Server = 0;
+
+ int FailCounter = 0;
+ while (1)
+ {
+ // We have no commands, wait for some to arrive
+ if (Queue == 0)
+ {
+ if (WaitFd(STDIN_FILENO) == false)
+ return 0;
+ }
+
+ /* Run messages, we can accept 0 (no message) if we didn't
+ do a WaitFd above.. Otherwise the FD is closed. */
+ int Result = Run(true);
+ if (Result != -1 && (Result != 0 || Queue == 0))
+ {
+ if(FailReason.empty() == false ||
+ ConfigFindB("DependOnSTDIN", true) == true)
+ return 100;
+ else
+ return 0;
+ }
+
+ if (Queue == 0)
+ continue;
+
+ // Connect to the server
+ if (Server == 0 || Server->Comp(Queue->Uri) == false)
+ {
+ Server = CreateServerState(Queue->Uri);
+ setPostfixForMethodNames(::URI(Queue->Uri).Host.c_str());
+ AllowRedirect = ConfigFindB("AllowRedirect", true);
+ PipelineDepth = ConfigFindI("Pipeline-Depth", 10);
+ Debug = DebugEnabled();
+ }
+
+ /* If the server has explicitly said this is the last connection
+ then we pre-emptively shut down the pipeline and tear down
+ the connection. This will speed up HTTP/1.0 servers a tad
+ since we don't have to wait for the close sequence to
+ complete */
+ if (Server->Persistent == false)
+ Server->Close();
+
+ // Reset the pipeline
+ if (Server->IsOpen() == false)
+ QueueBack = Queue;
+
+ // Connnect to the host
+ if (Server->Open() == false)
+ {
+ Fail(true);
+ Server = nullptr;
+ continue;
+ }
+
+ // Fill the pipeline.
+ Fetch(0);
+
+ RequestState Req(this, Server.get());
+ // Fetch the next URL header data from the server.
+ switch (Server->RunHeaders(Req, Queue->Uri))
+ {
+ case ServerState::RUN_HEADERS_OK:
+ break;
+
+ // The header data is bad
+ case ServerState::RUN_HEADERS_PARSE_ERROR:
+ {
+ _error->Error(_("Bad header data"));
+ Fail(true);
+ Server->Close();
+ RotateDNS();
+ continue;
+ }
+
+ // The server closed a connection during the header get..
+ default:
+ case ServerState::RUN_HEADERS_IO_ERROR:
+ {
+ FailCounter++;
+ _error->Discard();
+ Server->Close();
+ Server->Pipeline = false;
+ Server->PipelineAllowed = false;
+
+ if (FailCounter >= 2)
+ {
+ Fail(_("Connection failed"),true);
+ FailCounter = 0;
+ }
+
+ RotateDNS();
+ continue;
+ }
+ };
+
+ // Decide what to do.
+ FetchResult Res;
+ Res.Filename = Queue->DestFile;
+ switch (DealWithHeaders(Res, Req))
+ {
+ // Ok, the file is Open
+ case FILE_IS_OPEN:
+ {
+ URIStart(Res);
+
+ // Run the data
+ bool Result = true;
+
+ // ensure we don't fetch too much
+ // we could do "Server->MaximumSize = Queue->MaximumSize" here
+ // but that would break the clever pipeline messup detection
+ // so instead we use the size of the biggest item in the queue
+ Req.MaximumSize = FindMaximumObjectSizeInQueue();
+
+ if (Req.HaveContent)
+ Result = Server->RunData(Req);
+
+ /* If the server is sending back sizeless responses then fill in
+ the size now */
+ if (Res.Size == 0)
+ Res.Size = Req.File.Size();
+
+ // Close the file, destroy the FD object and timestamp it
+ FailFd = -1;
+ Req.File.Close();
+
+ // Timestamp
+ struct timeval times[2];
+ times[0].tv_sec = times[1].tv_sec = Req.Date;
+ times[0].tv_usec = times[1].tv_usec = 0;
+ utimes(Queue->DestFile.c_str(), times);
+
+ // Send status to APT
+ if (Result == true)
+ {
+ Hashes * const resultHashes = Server->GetHashes();
+ HashStringList const hashList = resultHashes->GetHashStringList();
+ if (PipelineDepth != 0 && Queue->ExpectedHashes.usable() == true && Queue->ExpectedHashes != hashList)
+ {
+ // we did not get the expected hash… mhhh:
+ // could it be that server/proxy messed up pipelining?
+ FetchItem * BeforeI = Queue;
+ for (FetchItem *I = Queue->Next; I != 0 && I != QueueBack; I = I->Next)
+ {
+ if (I->ExpectedHashes.usable() == true && I->ExpectedHashes == hashList)
+ {
+ // yes, he did! Disable pipelining and rewrite queue
+ if (Server->Pipeline == true)
+ {
+ Warning(_("Automatically disabled %s due to incorrect response from server/proxy. (man 5 apt.conf)"), "Acquire::http::Pipeline-Depth");
+ Server->Pipeline = false;
+ Server->PipelineAllowed = false;
+ // we keep the PipelineDepth value so that the rest of the queue can be fixed up as well
+ }
+ Rename(Res.Filename, I->DestFile);
+ Res.Filename = I->DestFile;
+ BeforeI->Next = I->Next;
+ I->Next = Queue;
+ Queue = I;
+ break;
+ }
+ BeforeI = I;
+ }
+ }
+ Res.TakeHashes(*resultHashes);
+ URIDone(Res);
+ }
+ else
+ {
+ if (Server->IsOpen() == false)
+ {
+ FailCounter++;
+ _error->Discard();
+ Server->Close();
+
+ if (FailCounter >= 2)
+ {
+ Fail(_("Connection failed"),true);
+ FailCounter = 0;
+ }
+
+ QueueBack = Queue;
+ }
+ else
+ {
+ Server->Close();
+ Fail(true);
+ }
+ }
+ break;
+ }
+
+ // IMS hit
+ case IMS_HIT:
+ {
+ URIDone(Res);
+ break;
+ }
+
+ // Hard server error, not found or something
+ case ERROR_UNRECOVERABLE:
+ {
+ Fail();
+ break;
+ }
+
+ // Hard internal error, kill the connection and fail
+ case ERROR_NOT_FROM_SERVER:
+ {
+ Fail();
+ RotateDNS();
+ Server->Close();
+ break;
+ }
+
+ // We need to flush the data, the header is like a 404 w/ error text
+ case ERROR_WITH_CONTENT_PAGE:
+ {
+ Server->RunDataToDevNull(Req);
+ Fail();
+ break;
+ }
+
+ // Try again with a new URL
+ case TRY_AGAIN_OR_REDIRECT:
+ {
+ // Clear rest of response if there is content
+ if (Req.HaveContent)
+ Server->RunDataToDevNull(Req);
+ Redirect(NextURI);
+ break;
+ }
+
+ default:
+ Fail(_("Internal error"));
+ break;
+ }
+
+ FailCounter = 0;
+ }
+
+ return 0;
+}
+ /*}}}*/
+unsigned long long BaseHttpMethod::FindMaximumObjectSizeInQueue() const /*{{{*/
+{
+ unsigned long long MaxSizeInQueue = 0;
+ for (FetchItem *I = Queue; I != 0 && I != QueueBack; I = I->Next)
+ MaxSizeInQueue = std::max(MaxSizeInQueue, I->MaximumSize);
+ return MaxSizeInQueue;
+}
+ /*}}}*/
+BaseHttpMethod::BaseHttpMethod(std::string &&Binary, char const * const Ver,unsigned long const Flags) :/*{{{*/
+ aptMethod(std::move(Binary), Ver, Flags), Server(nullptr), PipelineDepth(10),
+ AllowRedirect(false), Debug(false)
+{
+}
+ /*}}}*/
+bool BaseHttpMethod::Configuration(std::string Message) /*{{{*/
+{
+ if (aptMethod::Configuration(Message) == false)
+ return false;
+
+ _config->CndSet("Acquire::tor::Proxy",
+ "socks5h://apt-transport-tor@localhost:9050");
+ return true;
+}
+ /*}}}*/
+bool BaseHttpMethod::AddProxyAuth(URI &Proxy, URI const &Server) const /*{{{*/
+{
+ if (std::find(methodNames.begin(), methodNames.end(), "tor") != methodNames.end() &&
+ Proxy.User == "apt-transport-tor" && Proxy.Password.empty())
+ {
+ std::string pass = Server.Host;
+ pass.erase(std::remove_if(pass.begin(), pass.end(), [](char const c) { return std::isalnum(c) == 0; }), pass.end());
+ if (pass.length() > 255)
+ Proxy.Password = pass.substr(0, 255);
+ else
+ Proxy.Password = std::move(pass);
+ }
+ // FIXME: should we support auth.conf for proxies?
+ return true;
+}
+ /*}}}*/
projects / apt.git / commitdiff
