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/*
* $Id: HttpStatusLine.c,v 1.31.2.1 2009/02/02 11:13:24 hno Exp $
*
* DEBUG: section 57 HTTP Status-line
* AUTHOR: Alex Rousskov
*
* 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"
/* local constants */
const char *HttpStatusLineFormat = "HTTP/%d.%d %3d %s\r\n";
void
httpStatusLineInit(HttpStatusLine * sline)
{
http_version_t version;
httpBuildVersion(&version, 0, 0);
httpStatusLineSet(sline, version, HTTP_STATUS_NONE, NULL);
}
void
httpStatusLineClean(HttpStatusLine * sline)
{
http_version_t version;
httpBuildVersion(&version, 0, 0);
httpStatusLineSet(sline, version, HTTP_INTERNAL_SERVER_ERROR, NULL);
}
/* set values */
void
httpStatusLineSet(HttpStatusLine * sline, http_version_t version, http_status status, const char *reason)
{
assert(sline);
sline->version = version;
sline->status = status;
/* Note: no xstrdup for 'reason', assumes constant 'reasons' */
sline->reason = reason;
}
/* parse a 0-terminating buffer and fill internal structures; returns true on success */
void
httpStatusLinePackInto(const HttpStatusLine * sline, Packer * p)
{
assert(sline && p);
debug(57, 9) ("packing sline %p using %p:\n", sline, p);
debug(57, 9) (HttpStatusLineFormat, sline->version.major,
sline->version.minor, sline->status,
sline->reason ? sline->reason : httpStatusString(sline->status));
packerPrintf(p, HttpStatusLineFormat, sline->version.major,
sline->version.minor, sline->status, httpStatusLineReason(sline));
}
/* pack fields using Packer */
int
httpStatusLineParse(HttpStatusLine * sline, const char *start, const char *end)
{
int maj, min, status;
const char *s;
assert(sline);
sline->status = HTTP_INVALID_HEADER; /* Squid header parsing error */
if (strncasecmp(start, "HTTP/", 5))
return 0;
start += 5;
if (!xisdigit(*start))
return 0;
/* Format: HTTP/x.x <space> <status code> <space> <reason-phrase> CRLF */
s = start;
maj = 0;
for (s = start; s < end && xisdigit(*s) && maj < 65536; s++) {
maj = maj * 10;
maj = maj + *s - '0';
}
if (s >= end || maj >= 65536) {
debug(57, 7) ("httpStatusLineParse: Invalid HTTP reply status major.\n");
return 0;
}
/* next should be '.' */
if (*s != '.') {
debug(57, 7) ("httpStatusLineParse: Invalid HTTP reply status line.\n");
return 0;
}
s++;
/* next should be minor number */
min = 0;
for (; s < end && xisdigit(*s) && min < 65536; s++) {
min = min * 10;
min = min + *s - '0';
}
if (s >= end || min >= 65536) {
debug(57, 7) ("httpStatusLineParse: Invalid HTTP reply status version minor.\n");
return 0;
}
/* then a space */
if (*s != ' ') {
}
s++;
/* next should be status start */
status = 0;
for (; s < end && xisdigit(*s); s++) {
status = status * 10;
status = status + *s - '0';
}
if (s >= end) {
debug(57, 7) ("httpStatusLineParse: Invalid HTTP reply status code.\n");
return 0;
}
/* then a space */
/* for now we ignore the reason-phrase */
/* then crlf */
sline->version.major = maj;
sline->version.minor = min;
sline->status = status;
/* we ignore 'reason-phrase' */
return 1; /* success */
}
const char *
httpStatusLineReason(const HttpStatusLine * sline)
{
assert(sline);
return sline->reason ? sline->reason : httpStatusString(sline->status);
}
const char *
httpStatusString(http_status status)
{
/* why not to return matching string instead of using "p" ? @?@ */
const char *p = NULL;
switch (status) {
case 0:
p = "Init"; /* we init .status with code 0 */
break;
case HTTP_CONTINUE:
p = "Continue";
break;
case HTTP_SWITCHING_PROTOCOLS:
p = "Switching Protocols";
break;
case HTTP_OK:
p = "OK";
break;
case HTTP_CREATED:
p = "Created";
break;
case HTTP_ACCEPTED:
p = "Accepted";
break;
case HTTP_NON_AUTHORITATIVE_INFORMATION:
p = "Non-Authoritative Information";
break;
case HTTP_NO_CONTENT:
p = "No Content";
break;
case HTTP_RESET_CONTENT:
p = "Reset Content";
break;
case HTTP_PARTIAL_CONTENT:
p = "Partial Content";
break;
case HTTP_MULTIPLE_CHOICES:
p = "Multiple Choices";
break;
case HTTP_MOVED_PERMANENTLY:
p = "Moved Permanently";
break;
case HTTP_MOVED_TEMPORARILY:
p = "Moved Temporarily";
break;
case HTTP_SEE_OTHER:
p = "See Other";
break;
case HTTP_NOT_MODIFIED:
p = "Not Modified";
break;
case HTTP_USE_PROXY:
p = "Use Proxy";
break;
case HTTP_TEMPORARY_REDIRECT:
p = "Temporary Redirect";
break;
case HTTP_BAD_REQUEST:
p = "Bad Request";
break;
case HTTP_UNAUTHORIZED:
p = "Unauthorized";
break;
case HTTP_PAYMENT_REQUIRED:
p = "Payment Required";
break;
case HTTP_FORBIDDEN:
p = "Forbidden";
break;
case HTTP_NOT_FOUND:
p = "Not Found";
break;
case HTTP_METHOD_NOT_ALLOWED:
p = "Method Not Allowed";
break;
case HTTP_NOT_ACCEPTABLE:
p = "Not Acceptable";
break;
case HTTP_PROXY_AUTHENTICATION_REQUIRED:
p = "Proxy Authentication Required";
break;
case HTTP_REQUEST_TIMEOUT:
p = "Request Time-out";
break;
case HTTP_CONFLICT:
p = "Conflict";
break;
case HTTP_GONE:
p = "Gone";
break;
case HTTP_LENGTH_REQUIRED:
p = "Length Required";
break;
case HTTP_PRECONDITION_FAILED:
p = "Precondition Failed";
break;
case HTTP_REQUEST_ENTITY_TOO_LARGE:
p = "Request Entity Too Large";
break;
case HTTP_REQUEST_URI_TOO_LONG:
p = "Request-URI Too Long";
break;
case HTTP_UNSUPPORTED_MEDIA_TYPE:
p = "Unsupported Media Type";
break;
case HTTP_INTERNAL_SERVER_ERROR:
p = "Internal Server Error";
break;
case HTTP_NOT_IMPLEMENTED:
p = "Not Implemented";
break;
case HTTP_BAD_GATEWAY:
p = "Bad Gateway";
break;
case HTTP_SERVICE_UNAVAILABLE:
p = "Service Unavailable";
break;
case HTTP_GATEWAY_TIMEOUT:
p = "Gateway Time-out";
break;
case HTTP_HTTP_VERSION_NOT_SUPPORTED:
p = "HTTP Version not supported";
break;
case HTTP_EXPECTATION_FAILED:
p = "Expectation failed";
break;
default:
p = "Unknown";
debug(57, 3) ("Unknown HTTP status code: %d\n", status);
break;
}
return p;
}
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