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/* $Id: nntpfetch.C,v 1.3 2004/06/14 00:18:43 mrsam Exp $
**
** Copyright 2003, Double Precision Inc.
**
** See COPYING for distribution information.
*/
#include "nntpfetch.H"
#include <sstream>
#include <ctype.h>
using namespace std;
mail::nntp::FetchTaskBase::FetchTaskBase(mail::callback *callbackArg,
nntp &myserverArg,
std::string groupNameArg,
size_t msgNumArg,
std::string uidArg,
mail::readMode getTypeArg)
: GroupTask(callbackArg, myserverArg, groupNameArg),
msgNum(msgNumArg),
uid(uidArg),
getType(getTypeArg)
{
}
mail::nntp::FetchTaskBase::~FetchTaskBase()
{
}
void mail::nntp::FetchTaskBase::selectedGroup(msgnum_t estimatedCount,
msgnum_t loArticleCount,
msgnum_t hiArticleCount)
{
response_func= &mail::nntp::FetchTaskBase::processStatusResponse;
if (!myserver->fixGenericMessageNumber(uid, msgNum))
{
fail("Invalid message number.");
return;
}
byteCount=0;
ostringstream o;
switch (getType) {
case mail::readContents:
o << "BODY ";
break;
case mail::readBoth:
o << "ARTICLE ";
break;
default:
o << "HEAD ";
}
o << myserver->index[msgNum].msgNum << "\r\n";
myserver->socketWrite(o.str());
}
void mail::nntp::FetchTaskBase::processGroup(const char *cmd)
{
(this->*response_func)(cmd);
}
void mail::nntp::FetchTaskBase::processStatusResponse(const char *msg)
{
if (msg[0] != '2')
{
ostringstream o;
o << "The following error occured while reading this article:\n"
"\n"
" " << msg << "\n\n";
fetchedText(o.str());
success("Ok");
return;
}
response_func= getType == mail::readHeadersFolded
? &mail::nntp::FetchTaskBase::processFetchFoldedResponse:
&mail::nntp::FetchTaskBase::processFetchResponse;
foldedNewline=false;
}
void mail::nntp::FetchTaskBase::processFetchResponse(const char *cmd)
{
if (strcmp(cmd, "."))
{
if (*cmd == '.')
++cmd;
string s(cmd);
s += "\n";
byteCount += s.size();
if (callbackPtr)
callbackPtr->reportProgress(byteCount, 0, 0, 1);
fetchedText(s);
return;
}
if (callbackPtr)
callbackPtr->reportProgress(byteCount, byteCount, 0, 1);
success("Ok\n");
}
void mail::nntp::FetchTaskBase::processFetchFoldedResponse(const char *cmd)
{
if (strcmp(cmd, "."))
{
if (*cmd == '.')
++cmd;
if (*cmd && isspace((int)(unsigned char)*cmd) &&
foldedNewline)
{
while (*cmd && isspace((int)(unsigned char)*cmd))
cmd++;
string s(" ");
s += cmd;
byteCount += s.size();
if (callbackPtr)
callbackPtr->
reportProgress(byteCount, 0, 0, 1);
fetchedText(s);
}
else
{
string s;
if (foldedNewline)
s += "\n";
foldedNewline=true;
s += cmd;
byteCount += s.size();
if (callbackPtr)
callbackPtr->
reportProgress(byteCount, 0, 0, 1);
fetchedText(s);
}
return;
}
++byteCount;
if (callbackPtr)
callbackPtr->reportProgress(byteCount, byteCount, 0, 1);
fetchedText("\n");
success("Ok");
}
//
// TaskBase is recyled by CacheTask, which also fetches a message's contents,
// but does not have a callback::message, because it goes into a temporary
// file. That's why we separate out callback::message-specific processing
// into a subclass.
//
mail::nntp::FetchTask::FetchTask(callback::message *textCallbackArg,
nntp &myserverArg,
std::string groupNameArg,
size_t msgNumArg,
std::string uidArg,
mail::readMode getType)
: FetchTaskBase(textCallbackArg, myserverArg,
groupNameArg,
msgNumArg,
uidArg,
getType),
textCallback(*textCallbackArg)
{
}
mail::nntp::FetchTask::~FetchTask()
{
}
void mail::nntp::FetchTask::fetchedText(std::string s)
{
textCallback.messageTextCallback(msgNum, s);
}
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