unsigned long CircleBuf::BwTickReadData=0;
struct timeval CircleBuf::BwReadTick={0,0};
const unsigned int CircleBuf::BW_HZ=10;
-
+
// CircleBuf::CircleBuf - Circular input buffer /*{{{*/
// ---------------------------------------------------------------------
/* */
// ---------------------------------------------------------------------
/* Returns 0 if things are OK, 1 if an IO error occurred and 2 if a header
parse error occurred */
-int ServerState::RunHeaders()
+ServerState::RunHeadersResult ServerState::RunHeaders()
{
State = Header;
string::const_iterator J = I;
for (; J != Data.end() && *J != '\n' && *J != '\r';J++);
if (HeaderLine(string(I,J)) == false)
- return 2;
+ return RUN_HEADERS_PARSE_ERROR;
I = J;
}
if (Encoding == Closes && HaveContent == true)
Persistent = false;
- return 0;
+ return RUN_HEADERS_OK;
}
while (Owner->Go(false,this) == true);
- return 1;
+ return RUN_HEADERS_IO_ERROR;
}
/*}}}*/
// ServerState::RunData - Transfer the data from the socket /*{{{*/
// Evil servers return no version
if (Line[4] == '/')
{
- if (sscanf(Line.c_str(),"HTTP/%u.%u %u%[^\n]",&Major,&Minor,
- &Result,Code) != 4)
+ int const elements = sscanf(Line.c_str(),"HTTP/%u.%u %u%[^\n]",&Major,&Minor,&Result,Code);
+ if (elements == 3)
+ {
+ Code[0] = '\0';
+ if (Debug == true)
+ clog << "HTTP server doesn't give Reason-Phrase for " << Result << std::endl;
+ }
+ else if (elements != 4)
return _error->Error(_("The HTTP server sent an invalid reply header"));
}
else
if (stringcasecmp(Tag,"Last-Modified:") == 0)
{
- if (StrToTime(Val,Date) == false)
+ if (RFC1123StrToTime(Val.c_str(), Date) == false)
return _error->Error(_("Unknown date format"));
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;
// HttpMethod::DealWithHeaders - Handle the retrieved header data /*{{{*/
// ---------------------------------------------------------------------
/* We look at the header data we got back from the server and decide what
- to do. Returns
- 0 - File is open,
- 1 - IMS hit
- 3 - Unrecoverable error
- 4 - Error with error content page
- 5 - Unrecoverable non-server error (close the connection)
- 6 - Try again with a new or changed URI
+ to do. Returns DealWithHeadersResult (see http.h for details).
*/
-int HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
+HttpMethod::DealWithHeadersResult
+HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
{
// Not Modified
if (Srv->Result == 304)
unlink(Queue->DestFile.c_str());
Res.IMSHit = true;
Res.LastModified = Queue->LastModified;
- return 1;
+ return IMS_HIT;
}
/* Redirect
if (!Srv->Location.empty())
{
NextURI = Srv->Location;
- return 6;
+ return TRY_AGAIN_OR_REDIRECT;
}
/* else pass through for error message */
}
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;
- return 3;
+ return ERROR_WITH_CONTENT_PAGE;
+ return ERROR_UNRECOVERABLE;
}
// This is some sort of 2xx 'data follows' reply
delete File;
File = new FileFd(Queue->DestFile,FileFd::WriteAny);
if (_error->PendingError() == true)
- return 5;
+ return ERROR_NOT_FROM_SERVER;
FailFile = Queue->DestFile;
FailFile.c_str(); // Make sure we dont do a malloc in the signal handler
if (Srv->In.Hash->AddFD(File->Fd(),Srv->StartPos) == false)
{
_error->Errno("read",_("Problem hashing file"));
- return 5;
+ return ERROR_NOT_FROM_SERVER;
}
lseek(File->Fd(),0,SEEK_END);
}
SetNonBlock(File->Fd(),true);
- return 0;
+ return FILE_IS_OPEN;
}
/*}}}*/
// HttpMethod::SigTerm - Handle a fatal signal /*{{{*/
PipelineDepth = _config->FindI("Acquire::http::Pipeline-Depth",
PipelineDepth);
Debug = _config->FindB("Debug::Acquire::http",false);
-
+ AutoDetectProxyCmd = _config->Find("Acquire::http::ProxyAutoDetect");
+
+ // Get the proxy to use
+ AutoDetectProxy();
+
return true;
}
/*}}}*/
// Fetch the next URL header data from the server.
switch (Server->RunHeaders())
{
- case 0:
+ case ServerState::RUN_HEADERS_OK:
break;
// The header data is bad
- case 2:
+ case ServerState::RUN_HEADERS_PARSE_ERROR:
{
_error->Error(_("Bad header data"));
Fail(true);
// The server closed a connection during the header get..
default:
- case 1:
+ case ServerState::RUN_HEADERS_IO_ERROR:
{
FailCounter++;
_error->Discard();
switch (DealWithHeaders(Res,Server))
{
// Ok, the file is Open
- case 0:
+ case FILE_IS_OPEN:
{
URIStart(Res);
}
// IMS hit
- case 1:
+ case IMS_HIT:
{
URIDone(Res);
break;
}
// Hard server error, not found or something
- case 3:
+ case ERROR_UNRECOVERABLE:
{
Fail();
break;
}
// Hard internal error, kill the connection and fail
- case 5:
+ case ERROR_NOT_FROM_SERVER:
{
delete File;
File = 0;
}
// We need to flush the data, the header is like a 404 w/ error text
- case 4:
+ case ERROR_WITH_CONTENT_PAGE:
{
Fail();
}
// Try again with a new URL
- case 6:
+ case TRY_AGAIN_OR_REDIRECT:
{
// Clear rest of response if there is content
if (Server->HaveContent)
return 0;
}
/*}}}*/
-
-int main()
+// HttpMethod::AutoDetectProxy - auto detect proxy /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool HttpMethod::AutoDetectProxy()
{
- setlocale(LC_ALL, "");
- // ignore SIGPIPE, this can happen on write() if the socket
- // closes the connection (this is dealt with via ServerDie())
- signal(SIGPIPE, SIG_IGN);
+ if (AutoDetectProxyCmd.empty())
+ return true;
- HttpMethod Mth;
- return Mth.Loop();
+ if (Debug)
+ clog << "Using auto proxy detect command: " << AutoDetectProxyCmd << endl;
+
+ int Pipes[2] = {-1,-1};
+ if (pipe(Pipes) != 0)
+ return _error->Errno("pipe", "Failed to create Pipe");
+
+ pid_t Process = ExecFork();
+ if (Process == 0)
+ {
+ close(Pipes[0]);
+ dup2(Pipes[1],STDOUT_FILENO);
+ SetCloseExec(STDOUT_FILENO,false);
+
+ const char *Args[2];
+ Args[0] = AutoDetectProxyCmd.c_str();
+ Args[1] = 0;
+ execv(Args[0],(char **)Args);
+ cerr << "Failed to exec method " << Args[0] << endl;
+ _exit(100);
+ }
+ char buf[512];
+ int InFd = Pipes[0];
+ close(Pipes[1]);
+ int res = read(InFd, buf, sizeof(buf));
+ ExecWait(Process, "ProxyAutoDetect", true);
+
+ if (res < 0)
+ return _error->Errno("read", "Failed to read");
+ if (res == 0)
+ return _error->Warning("ProxyAutoDetect returned no data");
+
+ // add trailing \0
+ buf[res] = 0;
+
+ if (Debug)
+ clog << "auto detect command returned: '" << buf << "'" << endl;
+
+ if (strstr(buf, "http://") == buf)
+ _config->Set("Acquire::http::proxy", _strstrip(buf));
+
+ return true;
}
+ /*}}}*/
projects / apt.git / blobdiff