// $Id: http.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $
/* ######################################################################
- HTTPS Acquire Method - This is the HTTPS aquire method for APT.
+ HTTPS Acquire Method - This is the HTTPS acquire method for APT.
It uses libcurl
#include <apt-pkg/hashes.h>
#include <apt-pkg/netrc.h>
#include <apt-pkg/configuration.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/proxy.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <unistd.h>
-#include <signal.h>
#include <stdio.h>
-#include <errno.h>
-#include <string.h>
#include <iostream>
#include <sstream>
+#include <ctype.h>
+#include <stdlib.h>
-#include "config.h"
#include "https.h"
+
#include <apti18n.h>
/*}}}*/
using namespace std;
+struct APT_HIDDEN CURLUserPointer {
+ HttpsMethod * const https;
+ HttpsMethod::FetchResult * const Res;
+ HttpsMethod::FetchItem const * const Itm;
+ CURLUserPointer(HttpsMethod * const https, HttpsMethod::FetchResult * const Res,
+ HttpsMethod::FetchItem const * const Itm) : https(https), Res(Res), Itm(Itm) {}
+};
+
size_t
HttpsMethod::parse_header(void *buffer, size_t size, size_t nmemb, void *userp)
{
size_t len = size * nmemb;
- HttpsMethod *me = (HttpsMethod *)userp;
+ CURLUserPointer *me = static_cast<CURLUserPointer *>(userp);
std::string line((char*) buffer, len);
for (--len; len > 0; --len)
if (isspace(line[len]) == 0)
if (line.empty() == true)
{
- if (me->Server->Result != 416 && me->Server->StartPos != 0)
+ if (me->https->Server->Result != 416 && me->https->Server->StartPos != 0)
;
- else if (me->Server->Result == 416 && me->Server->Size == me->File->FileSize())
+ else if (me->https->Server->Result == 416)
{
- me->Server->Result = 200;
- me->Server->StartPos = me->Server->Size;
+ bool partialHit = false;
+ if (me->Itm->ExpectedHashes.usable() == true)
+ {
+ Hashes resultHashes(me->Itm->ExpectedHashes);
+ FileFd file(me->Itm->DestFile, FileFd::ReadOnly);
+ me->https->Server->TotalFileSize = file.FileSize();
+ me->https->Server->Date = file.ModificationTime();
+ resultHashes.AddFD(file);
+ HashStringList const hashList = resultHashes.GetHashStringList();
+ partialHit = (me->Itm->ExpectedHashes == hashList);
+ }
+ else if (me->https->Server->Result == 416 && me->https->Server->TotalFileSize == me->https->File->FileSize())
+ partialHit = true;
+
+ if (partialHit == true)
+ {
+ me->https->Server->Result = 200;
+ me->https->Server->StartPos = me->https->Server->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->https->Server->JunkSize = std::numeric_limits<unsigned long long>::max();
+ }
+ else
+ me->https->Server->StartPos = 0;
}
else
- me->Server->StartPos = 0;
+ me->https->Server->StartPos = 0;
+
+ me->Res->LastModified = me->https->Server->Date;
+ me->Res->Size = me->https->Server->TotalFileSize;
+ me->Res->ResumePoint = me->https->Server->StartPos;
- me->File->Truncate(me->Server->StartPos);
- me->File->Seek(me->Server->StartPos);
+ // we expect valid data, so tell our caller we get the file now
+ if (me->https->Server->Result >= 200 && me->https->Server->Result < 300)
+ {
+ if (me->https->Server->JunkSize == 0 && me->Res->Size != 0 && me->Res->Size > me->Res->ResumePoint)
+ me->https->URIStart(*me->Res);
+ if (me->https->Server->AddPartialFileToHashes(*(me->https->File)) == false)
+ return 0;
+ }
}
- else if (me->Server->HeaderLine(line) == false)
+ else if (me->https->Server->HeaderLine(line) == false)
return 0;
return size*nmemb;
size_t
HttpsMethod::write_data(void *buffer, size_t size, size_t nmemb, void *userp)
{
- HttpsMethod *me = (HttpsMethod *)userp;
+ HttpsMethod *me = static_cast<HttpsMethod *>(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->Server->JunkSize != 0)
+ return buffer_size;
+
+ if(me->File->Write(buffer, buffer_size) != true)
+ return 0;
- if (me->Res.Size == 0)
- me->URIStart(me->Res);
- if(me->File->Write(buffer, size*nmemb) != true)
- return false;
+ if(me->Queue->MaximumSize > 0)
+ {
+ unsigned long long const TotalWritten = me->File->Tell();
+ if (TotalWritten > me->Queue->MaximumSize)
+ {
+ me->SetFailReason("MaximumSizeExceeded");
+ _error->Error("Writing more data than expected (%llu > %llu)",
+ TotalWritten, me->Queue->MaximumSize);
+ return 0;
+ }
+ }
- return size*nmemb;
-}
+ if (me->Server->GetHashes()->Add((unsigned char const * const)buffer, buffer_size) == false)
+ return 0;
-int
-HttpsMethod::progress_callback(void *clientp, double dltotal, double dlnow,
- double ultotal, double ulnow)
-{
- HttpsMethod *me = (HttpsMethod *)clientp;
- if(dltotal > 0 && me->Res.Size == 0) {
- me->Res.Size = (unsigned long long)dltotal;
- }
- return 0;
+ return buffer_size;
}
// HttpsServerState::HttpsServerState - Constructor /*{{{*/
-HttpsServerState::HttpsServerState(URI Srv,HttpsMethod *Owner) : ServerState(Srv, NULL)
+HttpsServerState::HttpsServerState(URI Srv,HttpsMethod * Owner) : ServerState(Srv, Owner), Hash(NULL)
{
TimeOut = _config->FindI("Acquire::https::Timeout",TimeOut);
Reset();
}
/*}}}*/
+bool HttpsServerState::InitHashes(HashStringList const &ExpectedHashes) /*{{{*/
+{
+ delete Hash;
+ Hash = new Hashes(ExpectedHashes);
+ return true;
+}
+ /*}}}*/
+APT_PURE Hashes * HttpsServerState::GetHashes() /*{{{*/
+{
+ return Hash;
+}
+ /*}}}*/
-void HttpsMethod::SetupProxy() /*{{{*/
+void 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
bool HttpsMethod::Fetch(FetchItem *Itm)
{
struct stat SBuf;
- struct curl_slist *headers=NULL;
+ struct curl_slist *headers=NULL;
char curl_errorstr[CURL_ERROR_SIZE];
URI Uri = Itm->Uri;
string remotehost = Uri.Host;
maybe_add_auth (Uri, _config->FindFile("Dir::Etc::netrc"));
+ FetchResult Res;
+ CURLUserPointer userp(this, &Res, Itm);
// 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, this);
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, &userp);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, this);
- curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
- curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, this);
// options
- curl_easy_setopt(curl, CURLOPT_NOPROGRESS, false);
+ curl_easy_setopt(curl, CURLOPT_NOPROGRESS, true);
curl_easy_setopt(curl, CURLOPT_FILETIME, true);
// only allow curl to handle https, not the other stuff it supports
curl_easy_setopt(curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTPS);
curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, timeout);
// set redirect options and default to 10 redirects
- bool const AllowRedirect = _config->FindB("Acquire::https::AllowRedirect",
- _config->FindB("Acquire::http::AllowRedirect",true));
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, AllowRedirect);
curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 10);
// debug
- if(_config->FindB("Debug::Acquire::https", false))
+ if (Debug == true)
curl_easy_setopt(curl, CURLOPT_VERBOSE, true);
// error handling
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errorstr);
// If we ask for uncompressed files servers might respond with content-
- // negotation which lets us end up with compressed files we do not support,
+ // 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 we have the file send an if-range query with a range header
if (stat(Itm->DestFile.c_str(),&SBuf) >= 0 && SBuf.st_size > 0)
{
- char Buf[1000];
- sprintf(Buf, "Range: bytes=%li-", (long) SBuf.st_size);
- headers = curl_slist_append(headers, Buf);
- sprintf(Buf, "If-Range: %s", TimeRFC1123(SBuf.st_mtime).c_str());
- headers = curl_slist_append(headers, Buf);
+ 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).c_str());
+ headers = curl_slist_append(headers, Buf.c_str());
}
else if(Itm->LastModified > 0)
{
// go for it - if the file exists, append on it
File = new FileFd(Itm->DestFile, FileFd::WriteAny);
- Server = new HttpsServerState(Itm->Uri, this);
+ Server = CreateServerState(Itm->Uri);
+ if (Server->InitHashes(Itm->ExpectedHashes) == false)
+ return false;
// keep apt updated
Res.Filename = Itm->DestFile;
curl_slist_free_all(headers);
// cleanup
- if (success != 0)
+ if (success != CURLE_OK)
{
- _error->Error("%s", curl_errorstr);
- unlink(File->Name().c_str());
- return false;
+#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
+ return _error->Error("%s", curl_errorstr);
}
// server says file not modified
if (Server->Result == 304 || curl_condition_unmet == 1)
{
- unlink(File->Name().c_str());
+ RemoveFile("https", File->Name());
Res.IMSHit = true;
Res.LastModified = Itm->LastModified;
Res.Size = 0;
char err[255];
snprintf(err, sizeof(err) - 1, "HttpError%i", Server->Result);
SetFailReason(err);
- _error->Error("%s", err);
+ _error->Error("%i %s", Server->Result, Server->Code);
// unlink, no need keep 401/404 page content in partial/
- unlink(File->Name().c_str());
+ RemoveFile("https", File->Name());
return false;
}
- struct stat resultStat;
- if (unlikely(stat(File->Name().c_str(), &resultStat) != 0))
- {
- _error->Errno("stat", "Unable to access file %s", File->Name().c_str());
- return false;
- }
- Res.Size = resultStat.st_size;
-
// invalid range-request
if (Server->Result == 416)
{
- unlink(File->Name().c_str());
- Res.Size = 0;
+ RemoveFile("https", File->Name());
delete File;
Redirect(Itm->Uri);
return true;
}
+ struct stat resultStat;
+ if (unlikely(stat(File->Name().c_str(), &resultStat) != 0))
+ {
+ _error->Errno("stat", "Unable to access file %s", File->Name().c_str());
+ return false;
+ }
+ Res.Size = resultStat.st_size;
+
// Timestamp
curl_easy_getinfo(curl, CURLINFO_FILETIME, &Res.LastModified);
if (Res.LastModified != -1)
Res.LastModified = resultStat.st_mtime;
// take hashes
- Hashes Hash;
- FileFd Fd(Res.Filename, FileFd::ReadOnly);
- Hash.AddFD(Fd);
- Res.TakeHashes(Hash);
+ Res.TakeHashes(*(Server->GetHashes()));
// keep apt updated
URIDone(Res);
// cleanup
- Res.Size = 0;
delete File;
return true;
-};
+}
+ /*}}}*/
+// HttpsMethod::Configuration - Handle a configuration message /*{{{*/
+bool HttpsMethod::Configuration(string Message)
+{
+ if (ServerMethod::Configuration(Message) == false)
+ return false;
+
+ AllowRedirect = _config->FindB("Acquire::https::AllowRedirect",
+ _config->FindB("Acquire::http::AllowRedirect", true));
+ Debug = _config->FindB("Debug::Acquire::https",false);
+
+ return true;
+}
+ /*}}}*/
+std::unique_ptr<ServerState> HttpsMethod::CreateServerState(URI const &uri)/*{{{*/
+{
+ return std::unique_ptr<ServerState>(new HttpsServerState(uri, this));
+}
+ /*}}}*/
int main()
{
projects / apt.git / blobdiff