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authorJulian Andres Klode <jak@debian.org>2017-09-24 20:33:49 +0200
committerJulian Andres Klode <jak@debian.org>2017-09-24 20:36:41 +0200
commit5e770a07c8fd649340e83725f6d07b94c361e87c (patch)
treef7acc2299bc05d52a26d3507f37cfd0bd8b5ee6f /methods/curl.cc
parent6d44f502d102411325bb52efa7caa76c1054d2dd (diff)
Drop curl method and apt-transport-https package
This automatically removes any old apt-transport-https, as apt now Breaks it unversioned.
Diffstat (limited to 'methods/curl.cc')
-rw-r--r--methods/curl.cc548
1 files changed, 0 insertions, 548 deletions
diff --git a/methods/curl.cc b/methods/curl.cc
deleted file mode 100644
index 8e06d858d..000000000
--- a/methods/curl.cc
+++ /dev/null
@@ -1,548 +0,0 @@
-//-*- mode: cpp; mode: fold -*-
-// Description /*{{{*/
-// $Id: http.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $
-/* ######################################################################
-
- HTTPS Acquire Method - This is the HTTPS acquire method for APT.
-
- It uses libcurl
-
- ##################################################################### */
- /*}}}*/
-// Include Files /*{{{*/
-#include <config.h>
-
-#include <apt-pkg/configuration.h>
-#include <apt-pkg/error.h>
-#include <apt-pkg/fileutl.h>
-#include <apt-pkg/hashes.h>
-#include <apt-pkg/macros.h>
-#include <apt-pkg/netrc.h>
-#include <apt-pkg/proxy.h>
-#include <apt-pkg/strutl.h>
-
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <unistd.h>
-
-#include <array>
-#include <iostream>
-#include <sstream>
-
-#include "curl.h"
-
-#include <apti18n.h>
- /*}}}*/
-using namespace std;
-
-struct APT_HIDDEN CURLUserPointer {
- HttpsMethod * const https;
- HttpsMethod::FetchResult * const Res;
- HttpsMethod::FetchItem const * const Itm;
- RequestState * const Req;
- CURLUserPointer(HttpsMethod * const https, HttpsMethod::FetchResult * const Res,
- HttpsMethod::FetchItem const * const Itm, RequestState * const Req) : https(https), Res(Res), Itm(Itm), Req(Req) {}
-};
-
-size_t
-HttpsMethod::parse_header(void *buffer, size_t size, size_t nmemb, void *userp)
-{
- size_t len = size * nmemb;
- CURLUserPointer *me = static_cast<CURLUserPointer *>(userp);
- std::string line((char*) buffer, len);
- for (--len; len > 0; --len)
- if (isspace_ascii(line[len]) == 0)
- {
- ++len;
- break;
- }
- line.erase(len);
-
- if (line.empty() == true)
- {
- if (me->Req->File.Open(me->Itm->DestFile, FileFd::WriteAny) == false)
- return ERROR_NOT_FROM_SERVER;
-
- me->Req->JunkSize = 0;
- if (me->Req->Result != 416 && me->Req->StartPos != 0)
- ;
- else if (me->Req->Result == 416)
- {
- bool partialHit = false;
- if (me->Itm->ExpectedHashes.usable() == true)
- {
- Hashes resultHashes(me->Itm->ExpectedHashes);
- FileFd file(me->Itm->DestFile, FileFd::ReadOnly);
- me->Req->TotalFileSize = file.FileSize();
- me->Req->Date = file.ModificationTime();
- resultHashes.AddFD(file);
- HashStringList const hashList = resultHashes.GetHashStringList();
- partialHit = (me->Itm->ExpectedHashes == hashList);
- }
- else if (me->Req->Result == 416 && me->Req->TotalFileSize == me->Req->File.FileSize())
- partialHit = true;
-
- if (partialHit == true)
- {
- me->Req->Result = 200;
- me->Req->StartPos = me->Req->TotalFileSize;
- // the actual size is not important for https as curl will deal with it
- // by itself and e.g. doesn't bother us with transport-encoding…
- me->Req->JunkSize = std::numeric_limits<unsigned long long>::max();
- }
- else
- me->Req->StartPos = 0;
- }
- else
- me->Req->StartPos = 0;
-
- me->Res->LastModified = me->Req->Date;
- me->Res->Size = me->Req->TotalFileSize;
- me->Res->ResumePoint = me->Req->StartPos;
-
- // we expect valid data, so tell our caller we get the file now
- if (me->Req->Result >= 200 && me->Req->Result < 300)
- {
- if (me->Res->Size != 0 && me->Res->Size > me->Res->ResumePoint)
- me->https->URIStart(*me->Res);
- if (me->Req->AddPartialFileToHashes(me->Req->File) == false)
- return 0;
- }
- else
- me->Req->JunkSize = std::numeric_limits<decltype(me->Req->JunkSize)>::max();
- }
- else if (me->Req->HeaderLine(line) == false)
- return 0;
-
- return size*nmemb;
-}
-
-size_t
-HttpsMethod::write_data(void *buffer, size_t size, size_t nmemb, void *userp)
-{
- CURLUserPointer *me = static_cast<CURLUserPointer *>(userp);
- size_t buffer_size = size * nmemb;
- // we don't need to count the junk here, just drop anything we get as
- // we don't always know how long it would be, e.g. in chunked encoding.
- if (me->Req->JunkSize != 0)
- return buffer_size;
-
- if(me->Req->File.Write(buffer, buffer_size) != true)
- return 0;
-
- if(me->https->Queue->MaximumSize > 0)
- {
- unsigned long long const TotalWritten = me->Req->File.Tell();
- if (TotalWritten > me->https->Queue->MaximumSize)
- {
- me->https->SetFailReason("MaximumSizeExceeded");
- _error->Error(_("File has unexpected size (%llu != %llu). Mirror sync in progress?"),
- TotalWritten, me->https->Queue->MaximumSize);
- return 0;
- }
- }
-
- if (me->https->Server->GetHashes()->Add((unsigned char const * const)buffer, buffer_size) == false)
- return 0;
-
- return buffer_size;
-}
-
-// HttpsServerState::HttpsServerState - Constructor /*{{{*/
-HttpsServerState::HttpsServerState(URI Srv,HttpsMethod * Owner) : ServerState(Srv, Owner), Hash(NULL)
-{
- TimeOut = Owner->ConfigFindI("Timeout", TimeOut);
- Reset();
-}
- /*}}}*/
-bool HttpsServerState::InitHashes(HashStringList const &ExpectedHashes) /*{{{*/
-{
- delete Hash;
- Hash = new Hashes(ExpectedHashes);
- return true;
-}
- /*}}}*/
-APT_PURE Hashes * HttpsServerState::GetHashes() /*{{{*/
-{
- return Hash;
-}
- /*}}}*/
-
-bool HttpsMethod::SetupProxy() /*{{{*/
-{
- URI ServerName = Queue->Uri;
-
- // Determine the proxy setting
- AutoDetectProxy(ServerName);
-
- // Curl should never read proxy settings from the environment, as
- // we determine which proxy to use. Do this for consistency among
- // methods and prevent an environment variable overriding a
- // no-proxy ("DIRECT") setting in apt.conf.
- curl_easy_setopt(curl, CURLOPT_PROXY, "");
-
- // Determine the proxy setting - try https first, fallback to http and use env at last
- string UseProxy = ConfigFind("Proxy::" + ServerName.Host, "");
- if (UseProxy.empty() == true)
- UseProxy = ConfigFind("Proxy", "");
- // User wants to use NO proxy, so nothing to setup
- if (UseProxy == "DIRECT")
- return true;
-
- // Parse no_proxy, a comma (,) separated list of domains we don't want to use
- // a proxy for so we stop right here if it is in the list
- if (getenv("no_proxy") != 0 && CheckDomainList(ServerName.Host,getenv("no_proxy")) == true)
- return true;
-
- if (UseProxy.empty() == true)
- {
- const char* result = nullptr;
- if (std::find(methodNames.begin(), methodNames.end(), "https") != methodNames.end())
- result = getenv("https_proxy");
- // FIXME: Fall back to http_proxy is to remain compatible with
- // existing setups and behaviour of apt.conf. This should be
- // deprecated in the future (including apt.conf). Most other
- // programs do not fall back to http proxy settings and neither
- // should Apt.
- if (result == nullptr && std::find(methodNames.begin(), methodNames.end(), "http") != methodNames.end())
- result = getenv("http_proxy");
- UseProxy = result == nullptr ? "" : result;
- }
-
- // Determine what host and port to use based on the proxy settings
- if (UseProxy.empty() == false)
- {
- Proxy = UseProxy;
- AddProxyAuth(Proxy, ServerName);
-
- if (Proxy.Access == "socks5h")
- curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5_HOSTNAME);
- else if (Proxy.Access == "socks5")
- curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
- else if (Proxy.Access == "socks4a")
- curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4A);
- else if (Proxy.Access == "socks")
- curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4);
- else if (Proxy.Access == "http" || Proxy.Access == "https")
- curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
- else
- return false;
-
- if (Proxy.Port != 1)
- curl_easy_setopt(curl, CURLOPT_PROXYPORT, Proxy.Port);
- curl_easy_setopt(curl, CURLOPT_PROXY, Proxy.Host.c_str());
- if (Proxy.User.empty() == false || Proxy.Password.empty() == false)
- {
- curl_easy_setopt(curl, CURLOPT_PROXYUSERNAME, Proxy.User.c_str());
- curl_easy_setopt(curl, CURLOPT_PROXYPASSWORD, Proxy.Password.c_str());
- }
- }
- return true;
-} /*}}}*/
-// HttpsMethod::Fetch - Fetch an item /*{{{*/
-// ---------------------------------------------------------------------
-/* This adds an item to the pipeline. We keep the pipeline at a fixed
- depth. */
-bool HttpsMethod::Fetch(FetchItem *Itm)
-{
- struct stat SBuf;
- struct curl_slist *headers=NULL;
- char curl_errorstr[CURL_ERROR_SIZE];
- URI Uri = Itm->Uri;
- setPostfixForMethodNames(Uri.Host.c_str());
- AllowRedirect = ConfigFindB("AllowRedirect", true);
- Debug = DebugEnabled();
-
- // TODO:
- // - http::Pipeline-Depth
- // - error checking/reporting
- // - more debug options? (CURLOPT_DEBUGFUNCTION?)
- {
- auto const plus = Binary.find('+');
- if (plus != std::string::npos)
- Uri.Access = Binary.substr(plus + 1);
- }
-
- curl_easy_reset(curl);
- if (SetupProxy() == false)
- return _error->Error("Unsupported proxy configured: %s", URI::SiteOnly(Proxy).c_str());
-
- MaybeAddAuthTo(Uri);
- if (Server == nullptr || Server->Comp(Itm->Uri) == false)
- Server = CreateServerState(Itm->Uri);
-
- // The "+" is encoded as a workaround for a amazon S3 bug
- // see LP bugs #1003633 and #1086997. (taken from http method)
- Uri.Path = QuoteString(Uri.Path, "+~ ");
-
- FetchResult Res;
- RequestState Req(this, Server.get());
- CURLUserPointer userp(this, &Res, Itm, &Req);
- // callbacks
- curl_easy_setopt(curl, CURLOPT_URL, static_cast<string>(Uri).c_str());
- curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, parse_header);
- curl_easy_setopt(curl, CURLOPT_WRITEHEADER, &userp);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, &userp);
- // options
- curl_easy_setopt(curl, CURLOPT_NOPROGRESS, true);
- curl_easy_setopt(curl, CURLOPT_FILETIME, true);
- curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 0);
-
- if (std::find(methodNames.begin(), methodNames.end(), "https") != methodNames.end())
- {
- curl_easy_setopt(curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTPS);
- curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTPS);
-
- // File containing the list of trusted CA.
- std::string const cainfo = ConfigFind("CaInfo", "");
- if(cainfo.empty() == false)
- curl_easy_setopt(curl, CURLOPT_CAINFO, cainfo.c_str());
- // Check server certificate against previous CA list ...
- curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, ConfigFindB("Verify-Peer", true) ? 1 : 0);
- // ... and hostname against cert CN or subjectAltName
- curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, ConfigFindB("Verify-Host", true) ? 2 : 0);
- // Also enforce issuer of server certificate using its cert
- std::string const issuercert = ConfigFind("IssuerCert", "");
- if(issuercert.empty() == false)
- curl_easy_setopt(curl, CURLOPT_ISSUERCERT, issuercert.c_str());
- // For client authentication, certificate file ...
- std::string const pem = ConfigFind("SslCert", "");
- if(pem.empty() == false)
- curl_easy_setopt(curl, CURLOPT_SSLCERT, pem.c_str());
- // ... and associated key.
- std::string const key = ConfigFind("SslKey", "");
- if(key.empty() == false)
- curl_easy_setopt(curl, CURLOPT_SSLKEY, key.c_str());
- // Allow forcing SSL version to SSLv3 or TLSv1
- long final_version = CURL_SSLVERSION_DEFAULT;
- std::string const sslversion = ConfigFind("SslForceVersion", "");
- if(sslversion == "TLSv1")
- final_version = CURL_SSLVERSION_TLSv1;
- else if(sslversion == "TLSv1.0")
- final_version = CURL_SSLVERSION_TLSv1_0;
- else if(sslversion == "TLSv1.1")
- final_version = CURL_SSLVERSION_TLSv1_1;
- else if(sslversion == "TLSv1.2")
- final_version = CURL_SSLVERSION_TLSv1_2;
- else if(sslversion == "SSLv3")
- final_version = CURL_SSLVERSION_SSLv3;
- curl_easy_setopt(curl, CURLOPT_SSLVERSION, final_version);
- // CRL file
- std::string const crlfile = ConfigFind("CrlFile", "");
- if(crlfile.empty() == false)
- curl_easy_setopt(curl, CURLOPT_CRLFILE, crlfile.c_str());
- }
- else
- {
- curl_easy_setopt(curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTP);
- curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTP);
- }
- // cache-control
- if(ConfigFindB("No-Cache", false) == false)
- {
- // cache enabled
- if (ConfigFindB("No-Store", false) == true)
- headers = curl_slist_append(headers,"Cache-Control: no-store");
- std::string ss;
- strprintf(ss, "Cache-Control: max-age=%u", ConfigFindI("Max-Age", 0));
- headers = curl_slist_append(headers, ss.c_str());
- } else {
- // cache disabled by user
- headers = curl_slist_append(headers, "Cache-Control: no-cache");
- headers = curl_slist_append(headers, "Pragma: no-cache");
- }
- curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
- // speed limit
- int const dlLimit = ConfigFindI("Dl-Limit", 0) * 1024;
- if (dlLimit > 0)
- curl_easy_setopt(curl, CURLOPT_MAX_RECV_SPEED_LARGE, dlLimit);
-
- // set header
- curl_easy_setopt(curl, CURLOPT_USERAGENT, ConfigFind("User-Agent", "Debian APT-CURL/1.0 (" PACKAGE_VERSION ")").c_str());
-
- // set timeout
- int const timeout = ConfigFindI("Timeout", 120);
- curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, timeout);
- //set really low lowspeed timeout (see #497983)
- curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, DL_MIN_SPEED);
- curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, timeout);
-
- if(_config->FindB("Acquire::ForceIPv4", false) == true)
- curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
- else if(_config->FindB("Acquire::ForceIPv6", false) == true)
- curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);
-
- // debug
- if (Debug == true)
- curl_easy_setopt(curl, CURLOPT_VERBOSE, true);
-
- // error handling
- curl_errorstr[0] = '\0';
- curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr);
-
- // If we ask for uncompressed files servers might respond with content-
- // negotiation which lets us end up with compressed files we do not support,
- // see 657029, 657560 and co, so if we have no extension on the request
- // ask for text only. As a sidenote: If there is nothing to negotate servers
- // seem to be nice and ignore it.
- if (ConfigFindB("SendAccept", true))
- {
- size_t const filepos = Itm->Uri.find_last_of('/');
- string const file = Itm->Uri.substr(filepos + 1);
- if (flExtension(file) == file)
- headers = curl_slist_append(headers, "Accept: text/*");
- }
-
- // if we have the file send an if-range query with a range header
- if (Server->RangesAllowed && stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
- {
- std::string Buf;
- strprintf(Buf, "Range: bytes=%lli-", (long long) SBuf.st_size);
- headers = curl_slist_append(headers, Buf.c_str());
- strprintf(Buf, "If-Range: %s", TimeRFC1123(SBuf.st_mtime, false).c_str());
- headers = curl_slist_append(headers, Buf.c_str());
- }
- else if(Itm->LastModified > 0)
- {
- curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
- curl_easy_setopt(curl, CURLOPT_TIMEVALUE, Itm->LastModified);
- }
-
- if (Server->InitHashes(Itm->ExpectedHashes) == false)
- return false;
-
- // keep apt updated
- Res.Filename = Itm->DestFile;
-
- // get it!
- CURLcode success = curl_easy_perform(curl);
-
- // If the server returns 200 OK but the If-Modified-Since condition is not
- // met, CURLINFO_CONDITION_UNMET will be set to 1
- long curl_condition_unmet = 0;
- curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &curl_condition_unmet);
- if (curl_condition_unmet == 1)
- Req.Result = 304;
-
- Req.File.Close();
- curl_slist_free_all(headers);
-
- // cleanup
- if (success != CURLE_OK)
- {
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wswitch"
- switch (success)
- {
- case CURLE_COULDNT_RESOLVE_PROXY:
- case CURLE_COULDNT_RESOLVE_HOST:
- SetFailReason("ResolveFailure");
- break;
- case CURLE_COULDNT_CONNECT:
- SetFailReason("ConnectionRefused");
- break;
- case CURLE_OPERATION_TIMEDOUT:
- SetFailReason("Timeout");
- break;
- }
-#pragma GCC diagnostic pop
- // only take curls technical errors if we haven't our own
- // (e.g. for the maximum size limit we have and curls can be confusing)
- if (_error->PendingError() == false)
- _error->Error("%s", curl_errorstr);
- else
- _error->Warning("curl: %s", curl_errorstr);
- return false;
- }
-
- switch (DealWithHeaders(Res, Req))
- {
- case BaseHttpMethod::IMS_HIT:
- URIDone(Res);
- break;
-
- case BaseHttpMethod::ERROR_WITH_CONTENT_PAGE:
- // unlink, no need keep 401/404 page content in partial/
- RemoveFile(Binary.c_str(), Req.File.Name());
- // Fall through.
- case BaseHttpMethod::ERROR_UNRECOVERABLE:
- case BaseHttpMethod::ERROR_NOT_FROM_SERVER:
- return false;
-
- case BaseHttpMethod::TRY_AGAIN_OR_REDIRECT:
- Redirect(NextURI);
- break;
-
- case BaseHttpMethod::FILE_IS_OPEN:
- struct stat resultStat;
- if (unlikely(stat(Req.File.Name().c_str(), &resultStat) != 0))
- {
- _error->Errno("stat", "Unable to access file %s", Req.File.Name().c_str());
- return false;
- }
- Res.Size = resultStat.st_size;
-
- // Timestamp
- curl_easy_getinfo(curl, CURLINFO_FILETIME, &Res.LastModified);
- if (Res.LastModified != -1)
- {
- struct timeval times[2];
- times[0].tv_sec = Res.LastModified;
- times[1].tv_sec = Res.LastModified;
- times[0].tv_usec = times[1].tv_usec = 0;
- utimes(Req.File.Name().c_str(), times);
- }
- else
- Res.LastModified = resultStat.st_mtime;
-
- // take hashes
- Res.TakeHashes(*(Server->GetHashes()));
-
- // keep apt updated
- URIDone(Res);
- break;
- }
- return true;
-}
- /*}}}*/
-std::unique_ptr<ServerState> HttpsMethod::CreateServerState(URI const &uri)/*{{{*/
-{
- return std::unique_ptr<ServerState>(new HttpsServerState(uri, this));
-}
- /*}}}*/
-HttpsMethod::HttpsMethod(std::string &&pProg) : BaseHttpMethod(std::move(pProg),"1.2",Pipeline | SendConfig)/*{{{*/
-{
- auto addName = std::inserter(methodNames, methodNames.begin());
- addName = "http";
- auto const plus = Binary.find('+');
- if (plus != std::string::npos)
- {
- addName = Binary.substr(plus + 1);
- auto base = Binary.substr(0, plus);
- if (base != "https")
- addName = base;
- }
- if (std::find(methodNames.begin(), methodNames.end(), "https") != methodNames.end())
- curl_global_init(CURL_GLOBAL_SSL);
- else
- curl_global_init(CURL_GLOBAL_NOTHING);
- curl = curl_easy_init();
-}
- /*}}}*/
-HttpsMethod::~HttpsMethod() /*{{{*/
-{
- curl_easy_cleanup(curl);
-}
- /*}}}*/
-int main(int, const char *argv[]) /*{{{*/
-{
- std::string Binary = flNotDir(argv[0]);
- if (Binary.find('+') == std::string::npos && Binary != "https")
- Binary.append("+https");
- return HttpsMethod(std::move(Binary)).Run();
-}
- /*}}}*/