Set default basic auth realm

[thirdparty/squid.git] / src / whois.cc

/*
 * $Id: whois.cc,v 1.30 2005/09/10 19:31:31 serassio Exp $
 *
 * DEBUG: section 75    WHOIS protocol
 * AUTHOR: Duane Wessels, Kostas Anagnostakis
 *
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */

#include "squid.h"
#include "Store.h"
#include "HttpReply.h"
#include "HttpRequest.h"
#include "comm.h"
#include "HttpRequest.h"

#define WHOIS_PORT 43

class WhoisState
{

public:
    void readReply (int fd, char *buf, size_t len, comm_err_t flag, int xerrno);
    void setReplyToOK(StoreEntry *entry);
    StoreEntry *entry;
    HttpRequest *request;
    FwdState *fwd;
    char buf[BUFSIZ];
    bool dataWritten;
};

static PF whoisClose;
static PF whoisTimeout;
static IOCB whoisReadReply;

/* PUBLIC */

CBDATA_TYPE(WhoisState);

static void
whoisWriteComplete(int fd, char *buf, size_t size, comm_err_t flag, int xerrno, void *data)
{
    xfree(buf);
}

void
whoisStart(FwdState * fwd)
{
    WhoisState *p;
    int fd = fwd->server_fd;
    char *buf;
    size_t l;
    CBDATA_INIT_TYPE(WhoisState);
    p = cbdataAlloc(WhoisState);
    p->request = fwd->request;
    p->entry = fwd->entry;
    p->fwd = fwd;
    p->dataWritten = 0;
    storeLockObject(p->entry);
    comm_add_close_handler(fd, whoisClose, p);
    l = p->request->urlpath.size() + 3;
    buf = (char *)xmalloc(l);
    snprintf(buf, l, "%s\r\n", p->request->urlpath.buf() + 1);
    comm_write(fd, buf, strlen(buf), whoisWriteComplete, p);
    comm_read(fd, p->buf, BUFSIZ, whoisReadReply, p);
    commSetTimeout(fd, Config.Timeout.read, whoisTimeout, p);
}

/* PRIVATE */

static void
whoisTimeout(int fd, void *data)
{
    WhoisState *p = (WhoisState *)data;
    debug(75, 1) ("whoisTimeout: %s\n", storeUrl(p->entry));
    whoisClose(fd, p);
}

static void
whoisReadReply(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data)
{
    WhoisState *p = (WhoisState *)data;
    p->readReply(fd, buf, len, flag, xerrno);
}

void
WhoisState::setReplyToOK(StoreEntry *entry)
{
    HttpReply *reply = httpReplyCreate();
    storeBuffer(entry);
    HttpVersion version(1, 0);
    httpReplySetHeaders(reply, version, HTTP_OK, "Gatewaying", "text/plain", -1, -1, -2);
    storeEntryReplaceObject (entry, reply);
}

void
WhoisState::readReply (int fd, char *buf, size_t len, comm_err_t flag, int xerrno)
{
    int do_next_read = 0;

    /* Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us */

    if (flag == COMM_ERR_CLOSING) {
        return;
    }

    buf[len] = '\0';
    debug(75, 3) ("whoisReadReply: FD %d read %d bytes\n", fd, (int)len);
    debug(75, 5) ("{%s}\n", buf);

    if (flag == COMM_OK && len > 0) {
        if (!dataWritten)
            setReplyToOK(entry);

        kb_incr(&statCounter.server.all.kbytes_in, len);

        kb_incr(&statCounter.server.http.kbytes_in, len);

        /* No range support, we always grab it all */
        dataWritten = 1;

        storeAppend(entry, buf, len);

        storeBufferFlush(entry);

        do_next_read = 1;
    } else if (flag != COMM_OK || len < 0) {
        debug(50, 2) ("whoisReadReply: FD %d: read failure: %s.\n",
                      fd, xstrerror());

        if (ignoreErrno(errno)) {
            do_next_read = 1;
        } else {
            ErrorState *err;
            err = errorCon(ERR_READ_ERROR, HTTP_INTERNAL_SERVER_ERROR);
            err->xerrno = errno;
            fwdFail(fwd, err);
            comm_close(fd);
            do_next_read = 0;
        }
    } else {
        storeTimestampsSet(entry);
        storeBufferFlush(entry);

        if (!EBIT_TEST(entry->flags, RELEASE_REQUEST))
            storeSetPublicKey(entry);

        fwdComplete(fwd);

        debug(75, 3) ("whoisReadReply: Done: %s\n", storeUrl(entry));

        comm_close(fd);

        do_next_read = 0;
    }

    if (do_next_read)
        comm_read(fd, buf, BUFSIZ, whoisReadReply, this);
}

static void
whoisClose(int fd, void *data)
{
    WhoisState *p = (WhoisState *)data;
    debug(75, 3) ("whoisClose: FD %d\n", fd);
    storeUnlockObject(p->entry);
    cbdataFree(p);
}