core.c revision 14c6f2e13d97a4fafac1fbc247a274a298d5b418
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* Portions of this software are based upon public domain software
* originally written at the National Center for Supercomputing Applications,
* University of Illinois, Urbana-Champaign.
*/
#include "apr.h"
#include "apr_strings.h"
#include "apr_lib.h"
#include "apr_fnmatch.h"
#include "apr_hash.h"
#include "apr_thread_proc.h" /* for RLIMIT stuff */
#define APR_WANT_IOVEC
#define APR_WANT_STRFUNC
#define APR_WANT_MEMFUNC
#include "apr_want.h"
#define CORE_PRIVATE
#include "ap_config.h"
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_protocol.h" /* For index_of_response(). Grump. */
#include "http_request.h"
#include "http_vhost.h"
#include "http_main.h" /* For the default_handler below... */
#include "http_log.h"
#include "rfc1413.h"
#include "util_md5.h"
#include "http_connection.h"
#include "apr_buckets.h"
#include "util_filter.h"
#include "util_ebcdic.h"
#include "mpm.h"
#include "mpm_common.h"
#include "scoreboard.h"
#include "mod_core.h"
/* LimitXMLRequestBody handling */
#define AP_LIMIT_UNSET ((long) -1)
#define AP_MIN_SENDFILE_BYTES (256)
)
/* Server core module... This module provides support for really basic
* server operations, including options and commands which control the
* operation of other modules. Consider this the bureaucracy module.
*
* The core module also defines handlers, etc., do handle just enough
* to allow a server with the core module ONLY to actually serve documents
* (though it slaps DefaultType on all of 'em); this was useful in testing,
* but may not be worth preserving.
*
* This file could almost be mod_core.c, except for the stuff which affects
* the http_conf_globals.
*/
{
/* conf->r and conf->d[_*] are initialized in */
#ifdef RLIMIT_CPU
#endif
#endif
#ifdef RLIMIT_NPROC
#endif
conf->limit_req_body = 0;
/* Overriding all negotiation
*/
return (void *)conf;
}
{
int i;
if (base->response_code_strings) {
* RESPONSE_CODES);
}
/* there was no explicit setting of new->opts, so we merge
* preserve the invariant (opts_add & opts_remove) == 0
*/
| new->opts_remove;
}
}
else {
/* otherwise we just copy, because an explicit opts setting
* overrides all earlier +/- modifiers
*/
}
}
if (new->ap_default_type) {
}
if (new->ap_auth_type) {
}
if (new->ap_auth_name) {
}
if (new->ap_requires) {
}
if (new->response_code_strings) {
}
else {
for (i = 0; i < RESPONSE_CODES; ++i) {
= new->response_code_strings[i];
}
}
}
}
}
}
}
}
#ifdef RLIMIT_CPU
}
#endif
}
#endif
#ifdef RLIMIT_NPROC
if (new->limit_nproc) {
}
#endif
if (new->limit_req_body) {
}
else
}
}
if (new->add_default_charset_name) {
}
}
/* Overriding all negotiation
*/
}
}
if (new->output_filters) {
}
if (new->input_filters) {
}
return (void*)conf;
}
{
int is_virtual = s->is_virtual;
#ifdef GPROF
#endif
return (void *)conf;
}
{
if (!conf->access_name) {
}
if (!conf->ap_document_root) {
}
return conf;
}
/* Add per-directory configuration entry (for <directory> section);
* these are part of the core server config.
*/
{
&core_module);
*new_space = dir_config;
}
{
&core_module);
*new_space = url_config;
}
{
*new_space = url_config;
}
/* We need to do a stable sort, qsort isn't stable. So to make it stable
* we'll be maintaining the original index into the list, and using it
* as the minor key during sorting. The major key is the number of
* components (where the root component is zero).
*/
struct reorder_sort_rec {
int orig_index;
};
{
const struct reorder_sort_rec *a = va;
const struct reorder_sort_rec *b = vb;
/* a regex always sorts after a non-regex
*/
return -1;
}
return 1;
}
/* we always sort next by the number of components
*/
return -1;
}
return 1;
}
/* They have the same number of components, we now have to compare
* the minor key to maintain the original order (from the config.)
*/
return a->orig_index - b->orig_index;
}
{
struct reorder_sort_rec *sortbin;
int nelts;
int i;
/* we have to allocate tmp space to do a stable sort */
apr_pool_create(&tmp, p);
for (i = 0; i < nelts; ++i) {
sortbin[i].orig_index = i;
}
/* and now copy back to the original array */
for (i = 0; i < nelts; ++i) {
}
}
/*****************************************************************
*
* There are some elements of the core config structures in which
* other modules have a legitimate interest (this is ugly, but necessary
* to preserve NCSA back-compatibility). So, we have a bunch of accessors
* here...
*/
{
}
{
&core_module);
}
{
&core_module);
return conf->ap_auth_type;
}
{
&core_module);
return conf->ap_auth_name;
}
{
&core_module);
return conf->ap_default_type
}
{
&core_module);
return conf->ap_document_root;
}
{
&core_module);
return conf->ap_requires;
}
{
&core_module);
}
/* Should probably just get rid of this... the only code that cares is
* part of the core anyway (and in fact, it isn't publicised to other
* modules).
*/
{
&core_module);
return NULL;
}
}
/* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
{
if (conn->double_reverse) {
/* already done */
return;
}
/* single reverse failed, so don't bother */
return;
}
if (rv == APR_SUCCESS) {
while (sa) {
sa->ipaddr_len)) {
return;
}
#if APR_HAVE_IPV6
/* match IPv4-mapped IPv6 addresses with IPv4 A record */
sa->ipaddr_ptr,
return;
}
#endif
}
}
}
{
int hostname_lookups;
if (str_is_ip) { /* if caller wants to know */
*str_is_ip = 0;
}
/* If we haven't checked the host name, and we want to */
if (dir_config) {
if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
}
}
else {
/* the default */
}
if (type != REMOTE_NOLOOKUP
&& (type == REMOTE_DOUBLE_REV
|| hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
}
}
}
/* if failed, set it to the NULL string to indicate error */
}
}
if (type == REMOTE_DOUBLE_REV) {
return NULL;
}
}
/*
* Return the desired information; either the remote DNS name, if found,
* or either NULL (if the hostname was requested) or the IP address
* (if any identifier was requested).
*/
return conn->remote_host;
}
else {
return NULL;
}
else {
if (str_is_ip) { /* if caller wants to know */
*str_is_ip = 1;
}
}
}
}
{
return r->connection->remote_logname;
}
/* If we haven't checked the identity, and we want to */
&core_module);
}
else {
return NULL;
}
}
/* There are two options regarding what the "name" of a server is. The
* "canonical" name as defined by ServerName and Port, or the "client's
* name" as supplied by a possible Host: header or full URI. We never
* trust the port passed in the client's headers, we always use the
* port of the actual socket.
*
* The DNS option to UseCanonicalName causes this routine to do a
* reverse lookup on the local IP address of the connection and use
* that for the ServerName. This makes its value more reliable while
* at the same time allowing Demon's magic virtual hosting to work.
* The assumption is that DNS lookups are sufficiently quick...
* -- fanf 1998-10-03
*/
{
core_dir_config *d;
&core_module);
if (d->use_canonical_name == USE_CANONICAL_NAME_OFF) {
}
if (d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
else {
}
}
return conn->local_host;
}
/* default */
return r->server->server_hostname;
}
{
core_dir_config *d =
if (d->use_canonical_name == USE_CANONICAL_NAME_OFF
|| d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
if (r->hostname) {
}
}
/* default */
return port;
}
request_rec *r)
{
unsigned port = ap_get_server_port(r);
const char *host = ap_get_server_name(r);
if (ap_is_default_port(port, r)) {
}
}
{
core_dir_config *d =
return d->limit_req_body;
}
/*****************************************************************
*
* Commands... this module handles almost all of the NCSA httpd.conf
* commands, but most of the old srm.conf is in the the modules.
*/
/* returns a parent if it matches the given directive */
const char *what)
{
/* ### it would be nice to have atom-ized directives */
return dirp;
}
return NULL;
}
unsigned forbidden)
{
? ">" : "";
const ap_directive_t *found;
" cannot occur within <VirtualHost> section", NULL);
}
" cannot occur within <Limit> section", NULL);
}
"section", NULL);
}
if (((forbidden & NOT_IN_DIRECTORY)
|| ((forbidden & NOT_IN_LOCATION)
|| ((forbidden & NOT_IN_FILES)
"> section", NULL);
}
return NULL;
}
const char *arg)
{
return err;
}
return NULL;
}
#ifdef GPROF
{
return err;
}
return NULL;
}
#endif /*GPROF*/
{
core_dir_config *d=d_;
return err;
}
}
}
else {
d->add_default_charset_name = arg;
}
return NULL;
}
const char *arg)
{
return err;
}
/* TODO: ap_configtestonly && ap_docrootcheck && */
/* XXX Shouldn't this be relative to ServerRoot ??? */
"Warning: DocumentRoot [%s] does not exist",
arg);
}
else {
return "DocumentRoot must be a directory";
}
}
return NULL;
}
{
int idx;
apr_pcalloc(r->pool,
sizeof(*conf->response_code_strings) *
}
}
{
return err;
}
/* 1st parameter should be a 3 digit number, which we recognize;
* convert it into an array index
*/
if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
}
}
/* Heuristic to determine second argument. */
else if (msg[0] == '/')
what = LOCAL_PATH;
what = REMOTE_PATH;
else
/* The entry should be ignored if it is a full URL for a 401 error */
"cannot use a full URL in a 401 ErrorDocument "
"directive --- ignoring!");
}
else { /* Store it... */
}
/* hack. Prefix a " if it is a msg; as that is what
* http_protocol.c relies on to distinguish between
* a msg and a (local) path.
*/
}
return NULL;
}
{
core_dir_config *d=d_;
char *w;
return err;
}
while (l[0]) {
if (!strcasecmp(w, "Limit")) {
}
else if (!strcasecmp(w, "Options")) {
d->override |= OR_OPTIONS;
}
else if (!strcasecmp(w, "FileInfo")) {
d->override |= OR_FILEINFO;
}
else if (!strcasecmp(w, "AuthConfig")) {
d->override |= OR_AUTHCFG;
}
else if (!strcasecmp(w, "Indexes")) {
d->override |= OR_INDEXES;
}
else if (!strcasecmp(w, "None")) {
}
else if (!strcasecmp(w, "All")) {
}
else {
}
}
return NULL;
}
{
core_dir_config *d=d_;
int first = 1;
char action;
while (l[0]) {
action = '\0';
if (*w == '+' || *w == '-') {
action = *(w++);
}
else if (first) {
first = 0;
}
if (!strcasecmp(w, "Indexes")) {
opt = OPT_INDEXES;
}
else if (!strcasecmp(w, "Includes")) {
opt = OPT_INCLUDES;
}
else if (!strcasecmp(w, "IncludesNOEXEC")) {
}
else if (!strcasecmp(w, "FollowSymLinks")) {
opt = OPT_SYM_LINKS;
}
else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
opt = OPT_SYM_OWNER;
}
else if (!strcasecmp(w, "execCGI")) {
opt = OPT_EXECCGI;
}
else if (!strcasecmp(w, "MultiViews")) {
}
}
else if (!strcasecmp(w, "None")) {
}
else if (!strcasecmp(w, "All")) {
}
else {
}
/* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
if (action == '-') {
d->opts_remove |= opt;
}
else if (action == '+') {
d->opts_remove &= ~opt;
}
else {
}
}
return NULL;
}
{
core_dir_config *c=c_;
c->satisfy = SATISFY_ALL;
}
c->satisfy = SATISFY_ANY;
}
else {
return "Satisfy either 'any' or 'all'.";
}
return NULL;
}
{
require_line *r;
core_dir_config *c=c_;
if (!c->ap_requires) {
}
return NULL;
}
const char *arg) {
apr_int64_t limited = 0;
const char *errmsg;
return err;
}
while (limited_methods[0]) {
int methnum;
/* check for builtin or module registered method number */
return "TRACE cannot be controlled by <Limit>";
}
/* method has not been registered yet, but resorce restriction
* is always checked before method handling, so register it.
*/
}
}
/* Killing two features with one function,
* if (tog == NULL) <Limit>, else <LimitExcept>
*/
return errmsg;
}
* the same problem!!!
* We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
* people don't get bitten by wrong-cased regex matches
*/
#ifdef WIN32
#else
#define USE_ICASE 0
#endif
/*
* Report a missing-'>' syntax error.
*/
{
"> directive missing closing '>'", NULL);
}
{
const char *errmsg;
return err;
}
return unclosed_directive(cmd);
}
if (!arg) {
return "<DirectoryMatch > block must specify a path";
else
return "<Directory > block must specify a path";
}
return "<Directory ~ > block must specify a path";
}
}
{
char *newpath;
/* Ensure that the pathname is canonical */
"\"> path is invalid.", NULL);
}
}
}
/* initialize our config and fetch it */
return errmsg;
conf->r = r;
/* Make this explicit - the "/" root has 0 elements, that is, we
* will always merge it, and it will always sort and merge first.
* All others are sorted and tested by the number of slashes.
*/
conf->d_components = 0;
else
if (*arg != '\0') {
"> arguments not (yet) supported.", NULL);
}
return NULL;
}
{
const char *errmsg;
return err;
}
return unclosed_directive(cmd);
}
}
}
/* initialize our config and fetch it */
return errmsg;
conf->r = r;
if (*arg != '\0') {
"> arguments not (yet) supported.", NULL);
}
return NULL;
}
{
const char *errmsg;
return err;
}
return unclosed_directive(cmd);
}
/* Only if not an .htaccess file */
if (!old_path) {
}
}
}
else {
char *newpath;
/* Ensure that the pathname is canonical, but we
"\"> is invalid.", NULL);
}
/* initialize our config and fetch it */
return errmsg;
conf->r = r;
if (*arg != '\0') {
"> arguments not (yet) supported.", NULL);
}
return NULL;
}
{
return unclosed_directive(cmd);
}
if (not) {
arg++;
}
const char *retval;
return retval;
}
else {
}
}
{
char **defines;
int i;
for (i = 0; i < ap_server_config_defines->nelts; i++) {
return 1;
}
}
return 0;
}
{
const char *endp;
int defined;
int not = 0;
return unclosed_directive(cmd);
}
if (arg[0] == '!') {
not = 1;
arg++;
}
defined = ap_exists_config_define(arg);
const char *retval;
return retval;
}
else {
}
}
/* httpd.conf commands... beginning with the <VirtualHost> business */
const char *arg)
{
const char *errmsg;
return err;
}
return unclosed_directive(cmd);
}
/* FIXME: There's another feature waiting to happen here -- since you
you might want to use it to group common definitions and then
define other "subhosts" with their individual differences. But
personally I'd rather just do it with a macro preprocessor. -djg */
if (main_server->is_virtual) {
return "<VirtualHost> doesn't nest!";
}
if (errmsg) {
return errmsg;
}
main_server->next = s;
s->lookup_defaults);
return errmsg;
}
const char *arg)
{
return "ServerAlias only used in <VirtualHost>";
}
while (*arg) {
if (ap_is_matchexp(name)) {
}
else {
}
}
return NULL;
}
const char *arg)
{
/* This one's pretty generic... */
return err;
}
return NULL;
}
{
int port;
return err;
}
"\" is outside the appropriate range "
"(i.e., 1..65535).", NULL);
}
return NULL;
}
const char *arg)
{
core_dir_config *d=d_;
return err;
}
d->server_signature = srv_sig_on;
}
d->server_signature = srv_sig_off;
}
}
else {
return "ServerSignature: use one of: off | on | email";
}
return NULL;
}
const char *arg)
{
return err;
}
return "ServerRoot must be a valid directory";
}
return NULL;
}
{
return err;
}
return NULL;
}
{
core_dir_config *d=d_;
return err;
}
d->do_rfc1413 = arg != 0;
return NULL;
}
const char *arg)
{
core_dir_config *d=d_;
return err;
}
}
}
}
else {
return "parameter must be 'on', 'off', or 'double'";
}
return NULL;
}
const char *arg)
{
return err;
}
return NULL;
}
{
core_dir_config *d=d_;
return err;
}
d->content_md5 = arg != 0;
return NULL;
}
const char *arg)
{
core_dir_config *d=d_;
return err;
}
}
}
}
else {
return "parameter must be 'on', 'off', or 'dns'";
}
return NULL;
}
const char *name)
{
return NULL;
}
{
char *str;
return err;
}
}
}
}
}
}
}
}
}
else {
return "LogLevel requires level keyword: one of "
}
}
else {
return "LogLevel requires level keyword";
}
return NULL;
}
{
char sport[20];
&core_module);
return "";
}
" Server at <a href=\"mailto:",
"</address>\n", NULL);
}
"</address>\n", NULL);
}
/*
* Load an authorisation realm into our location configuration, applying the
* usual rules that apply to realms.
*/
const char *word1)
{
return NULL;
}
#ifdef _OSD_POSIX /* BS2000 Logon Passwd file */
{
return err;
}
}
#endif /*_OSD_POSIX*/
/*
* Handle a request to include the server's OS platform in the Server
* response header field (the ServerTokens directive). Unfortunately
* this requires a new global in order to communicate the setting back to
* http_main so it can insert the information in the right place in the
* string.
*/
static char *server_version = NULL;
static int version_locked = 0;
enum server_token_type {
SrvTk_MIN, /* eg: Apache/1.3.0 */
SrvTk_OS, /* eg: Apache/1.3.0 (UNIX) */
SrvTk_FULL, /* eg: Apache/1.3.0 (UNIX) PHP/3.0 FooBar/1.2b */
SrvTk_PRODUCT_ONLY /* eg: Apache */
};
{
version_locked = 0;
return APR_SUCCESS;
}
AP_DECLARE(const char *) ap_get_server_version(void)
{
}
{
if (! version_locked) {
/*
* If the version string is null, register our cleanup to reset the
* pointer on pool destruction. We also know that, if NULL,
* we are adding the original SERVER_BASEVERSION string.
*/
if (server_version == NULL) {
}
else {
/*
* Tack the given component identifier to the end of
* the existing string.
*/
}
}
}
/*
* This routine adds the real server base identity to the version string,
* and then locks out changes until the next reconfig.
*/
{
if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
}
else if (ap_server_tokens == SrvTk_MIN) {
}
else {
}
/*
* Lock the server_version string if we're not displaying
* the full set of tokens
*/
if (ap_server_tokens != SrvTk_FULL) {
}
}
const char *arg)
{
return err;
}
}
}
}
else {
}
return NULL;
}
const char *arg)
{
int lim;
return err;
}
if (lim < 0) {
"\" must be a non-negative integer", NULL);
}
if (lim > DEFAULT_LIMIT_REQUEST_LINE) {
"must not exceed the precompiled maximum of %d",
}
return NULL;
}
const char *arg)
{
int lim;
return err;
}
if (lim < 0) {
"\" must be a non-negative integer (0 = no limit)",
NULL);
}
if (lim > DEFAULT_LIMIT_REQUEST_FIELDSIZE) {
"must not exceed the precompiled maximum of %d",
}
return NULL;
}
const char *arg)
{
int lim;
return err;
}
if (lim < 0) {
"\" must be a non-negative integer (0 = no limit)",
NULL);
}
return NULL;
}
const char *arg)
{
return err;
}
/* WTF: If strtoul is not portable, then write a replacement.
* Instead we have an idiotic define in httpd.h that prevents
* it from being used even when it is available. Sheesh.
*/
return NULL;
}
const char *arg)
{
return err;
}
if (conf->limit_xml_body < 0)
return "LimitXMLRequestBody requires a non-negative integer.";
return NULL;
}
{
return AP_DEFAULT_LIMIT_XML_BODY;
}
#if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
{
return NULL;
}
#endif
#ifdef RLIMIT_CPU
{
return NULL;
}
#endif
{
#if defined(RLIMIT_AS)
#elif defined(RLIMIT_DATA)
#elif defined(RLIMIT_VMEM)
#endif
return NULL;
}
#endif
#ifdef RLIMIT_NPROC
{
return NULL;
}
#endif
{
apr_size_t bytes_written = 0;
apr_size_t n = len;
int i = 0;
*nbytes = 0;
/* XXX handle checking for non-blocking socket */
while (bytes_written != len) {
bytes_written += n;
if (rv != APR_SUCCESS)
return rv;
*nbytes += n;
/* If the write did not complete, adjust the iovecs and issue
* apr_sendv again
*/
if (bytes_written < len) {
/* Skip over the vectors that have already been written */
i++;
}
if (n < cnt) {
/* Handle partial write of vec i */
}
}
n = len - bytes_written;
}
return APR_SUCCESS;
}
/* sendfile_it_all()
* send the entire file using sendfile()
* handle partial writes
* return only when all bytes have been sent or an error is encountered.
*/
#if APR_HAS_SENDFILE
apr_file_t *fd,
{
#ifdef AP_DEBUG
apr_int32_t timeout = 0;
#endif
&timeout) == APR_SUCCESS) &&
timeout > 0); /* socket must be in timeout mode */
do {
flags);
return rv; /* normal case & error exit */
}
/* partial write, oooh noooo...
* Skip over any header data which was written
*/
--hdtr->numheaders;
}
else {
tmplen = 0;
}
}
/* Skip over any file data which was written */
if (tmplen <= file_bytes_left) {
file_offset += tmplen;
continue;
}
file_bytes_left = 0;
file_offset = 0;
/* Skip over any trailer data which was written */
--hdtr->numtrailers;
}
else {
tmplen = 0;
}
}
} while (1);
}
#endif
/*
* emulate_sendfile()
* to the network. emulate_sendfile will return only when all the bytes have been
* sent (i.e., it handles partial writes) or on a network error condition.
*/
{
apr_size_t sendlen = 0;
apr_int32_t i;
apr_off_t o; /* Track the file offset for partial writes */
char buffer[8192];
*nbytes = 0;
/* Send the headers
* writev_it_all handles partial writes.
* XXX: optimization... if headers are less than MIN_WRITE_SIZE, copy
* them into buffer
*/
for (i = 0; i < hdtr->numheaders; i++) {
}
sendlen, &bytes_sent);
if (rv == APR_SUCCESS)
}
/* Seek the file to 'offset' */
}
/* Send the file, making sure to handle partial writes */
o = 0;
if (rv == APR_SUCCESS) {
o += bytes_sent; /* o is where we are in the buffer */
*nbytes += bytes_sent;
}
}
}
/* Send the trailers
* XXX: optimization... if it will fit, send this on the last send in the
* loop above
*/
sendlen = 0;
for (i = 0; i < hdtr->numtrailers; i++) {
}
sendlen, &bytes_sent);
if (rv == APR_SUCCESS)
*nbytes += bytes_sent;
}
return rv;
}
/* Note --- ErrorDocument will now work from .htaccess files.
* The AllowOverride of Fileinfo allows webmasters to turn it off
*/
static const command_rec core_cmds[] = {
/* Old access config file commands */
"Container for directives affecting resources located in the specified "
"directories"),
"Container for directives affecting resources accessed through the "
"specified URL paths"),
"Container to map directives to a particular virtual host, takes one or "
"more host addresses"),
"Container for directives affecting files matching specified patterns"),
"Container for authentication directives when accessed using specified HTTP "
"methods"),
"Container for authentication directives to be applied when any HTTP "
"method other than those specified is used to access the resource"),
"Container for directives based on existance of specified modules"),
"Container for directives based on existance of command line defines"),
"Container for directives affecting resources located in the "
"specified directories"),
"Container for directives affecting resources accessed through the "
"specified URL paths"),
"Container for directives affecting files matching specified patterns"),
"An HTTP authorization type (e.g., \"Basic\")"),
"The authentication realm (e.g. \"Members Only\")"),
"Selects which authenticated users or groups may access a protected space"),
"access policy if both allow and require used ('all' or 'any')"),
#ifdef GPROF
"Directory to plop gmon.out files"),
#endif
"The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
/* Old resource config file commands */
"Name(s) of per-directory config files (default: .htaccess)"),
"Root directory of the document tree"),
"Change responses for HTTP errors"),
"Controls what groups of directives can be configured by per-directory "
"config files"),
"Set a number of attributes for a given directory"),
OR_FILEINFO, "the default MIME type for untypable files"),
/* Old server config file commands */
"\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
"enable double-reverse DNS lookups"),
"The email address of the server administrator"),
"The hostname of the server"),
"Common directory of server-related files (logs, confs, etc.)"),
"The filename of the error log"),
"A name or names alternately used to access the server"),
"The pathname the server can be reached at"),
"Timeout duration (sec)"),
"Enable identd (RFC 1413) user lookups - SLOW"),
"whether or not to send a Content-MD5 header with each request"),
"How to work out the ServerName : Port when constructing URLs"),
/* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
/* TODO: ListenBacklog in MPM */
"Name of the config file to be included"),
"Level of verbosity in error logging"),
"A numeric IP address:port, or the name of a host"),
#ifdef _OSD_POSIX
"Name of server User's bs2000 logon account name"),
#endif
"Determine tokens displayed in the Server: header - Min(imal), OS or Full"),
"Limit on maximum size of an HTTP request line"),
"Limit on maximum size of an HTTP request header field"),
"Limit (0 = unlimited) on max number of header fields in a request message"),
"Limit (in bytes) on maximum size of request message body"),
"Limit (in bytes) on maximum size of an XML-based request "
"body"),
/* System Resource Controls */
#ifdef RLIMIT_CPU
#else
#endif
#else
#endif
#ifdef RLIMIT_NPROC
#else
#endif
"a mime type that overrides other configured type"),
"a handler name that overrides any other configured handler"),
"filter (or ; delimited list of filters) to be run on the request content"),
"filter (or ; delimited list of filters) to be run on the request body"),
/*
* pay attention to. If an mpm wishes to use these, they should
* #defined them in mpm.h.
*/
#ifdef AP_MPM_WANT_SET_PIDFILE
"A file for logging the server process ID"),
#endif
#ifdef AP_MPM_WANT_SET_SCOREBOARD
"A file for Apache to maintain runtime process management information"),
#endif
#ifdef AP_MPM_WANT_SET_LOCKFILE
"The lockfile used when Apache needs to lock the accept() call"),
#endif
#ifdef AP_MPM_WANT_SET_MAX_REQUESTS
"Maximum number of requests a particular child serves before dying."),
#endif
#ifdef AP_MPM_WANT_SET_COREDUMPDIR
"The location of the directory Apache changes to before dumping core"),
#endif
"The system mutex implementation to use for the accept mutex"),
#endif
{ NULL }
};
/*****************************************************************
*
* Core handlers for various phases of server operation...
*/
{
/* XXX We have already been here, or another module did the work
* for us. At this moment, we will enable only file subrequests.
*/
return OK;
/* XXX this seems too specific, this should probably become
* some general-case test
*/
if (r->proxyreq) {
return HTTP_FORBIDDEN;
}
"Invalid URI in request %s", r->the_request);
return HTTP_BAD_REQUEST;
}
| APR_FILEPATH_SECUREROOT, r->pool)
!= APR_SUCCESS) {
return HTTP_FORBIDDEN;
}
r->canonical_filename = r->filename;
}
else {
/*
* Make sure that we do not mess up the translation by adding two
* /'s in a row. This happens under windows when the document
* root ends with a /
*/
| APR_FILEPATH_SECUREROOT, r->pool)
!= APR_SUCCESS) {
return HTTP_FORBIDDEN;
}
r->canonical_filename = r->filename;
}
return OK;
}
/*****************************************************************
*
* Test the filesystem name through directory_walk and file_walk
*/
static int core_map_to_storage(request_rec *r)
{
int access_status;
if ((access_status = ap_directory_walk(r))) {
return access_status;
}
if ((access_status = ap_file_walk(r))) {
return access_status;
}
return OK;
}
static int core_override_type(request_rec *r)
{
&core_module);
/* Check for overrides with ForceType / SetHandler
*/
return OK;
}
static int default_handler(request_rec *r)
{
apr_bucket *e;
core_dir_config *d;
int errstatus;
* remove this support or coordinate when to use the filter vs.
* when to use this code
* The current choice of when to compute the md5 here matches the 1.3
* support fairly closely (unlike 1.3, we don't handle computing md5
* when the charset is translated).
*/
int bld_content_md5;
/*
* The old way of doing handlers meant that this handler would
* match literally anything - this way will require handler to
* have a / in the middle, which probably captures the original
* intent, but may cause problems at first - Ben 7th Jan 01
*/
return DECLINED;
&core_module);
return errstatus;
}
if (r->method_number == M_INVALID) {
"Invalid method in request %s", r->the_request);
return HTTP_NOT_IMPLEMENTED;
}
if (r->method_number == M_OPTIONS) {
return ap_send_http_options(r);
}
if (r->method_number == M_PUT) {
return HTTP_METHOD_NOT_ALLOWED;
}
"File does not exist: %s",r->path_info ?
: r->filename);
return HTTP_NOT_FOUND;
}
return HTTP_METHOD_NOT_ALLOWED;
}
"file permissions deny server access: %s", r->filename);
return HTTP_FORBIDDEN;
}
ap_set_etag(r);
return errstatus;
}
if (bld_content_md5) {
}
/* APR_HAS_LARGE_FILES issue; must split into mutiple buckets,
* no greater than MAX(apr_size_t), and more granular than that
*/
while (fsize > AP_MAX_SENDFILE) {
apr_bucket_copy(e, &e);
e->start += AP_MAX_SENDFILE;
fsize -= AP_MAX_SENDFILE;
}
}
else
#endif
e = apr_bucket_eos_create();
}
static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b, ap_input_mode_t mode, apr_off_t *readbytes)
{
apr_bucket *e;
if (!f->ctx) { /* If we haven't passed up the socket yet... */
f->ctx = (void *)1;
e = apr_bucket_socket_create(f->c->client_socket);
APR_BRIGADE_INSERT_TAIL(b, e);
return APR_SUCCESS;
}
else {
/* Either some code lost track of the socket
* bucket or we already found out that the
* client closed.
*/
return APR_EOF;
}
}
/* Default filter. This filter should almost always be used. Its only job
* is to send the headers if they haven't already been sent, and then send
* the actual data.
*/
typedef struct CORE_OUTPUT_FILTER_CTX {
* request is finished
*/
int subpool_has_stuff; /* anything in the subpool? */
#define MAX_IOVEC_TO_WRITE 16
{
conn_rec *c = f->c;
}
/* If we have a saved brigade, concatenate the new brigade to it */
if (ctx->b) {
APR_BRIGADE_CONCAT(ctx->b, b);
b = ctx->b;
}
/* Perform multiple passes over the brigade, sending batches of output
to the connection. */
while (b) {
apr_size_t nbytes = 0;
apr_bucket *e;
/* tail of brigade if we need another pass */
/* one group of iovecs per pass over the brigade */
apr_size_t nvec = 0;
apr_size_t nvec_trailers = 0;
/* one file per pass over the brigade */
apr_size_t flen = 0;
APR_BRIGADE_FOREACH(e, b) {
/* XXX: APR_BRIGADE_FOREACH breaks the value of e!
* is that the expected behavior?
*/
last_e = e;
if (APR_BUCKET_IS_EOS(e) || APR_BUCKET_IS_FLUSH(e)) {
break;
}
/* It doesn't make any sense to use sendfile for a file bucket
* that represents 10 bytes.
*/
else if (APR_BUCKET_IS_FILE(e)
&& (e->length >= AP_MIN_SENDFILE_BYTES)) {
apr_bucket_file *a = e->data;
/* We can't handle more than one file bucket at a time
* so we split here and send the file we have already
* found.
*/
if (fd) {
more = apr_brigade_split(b, e);
break;
}
}
else {
const char *str;
apr_size_t n;
if (n) {
if (!fd) {
if (nvec == MAX_IOVEC_TO_WRITE) {
/* woah! too many. stop now. */
more = apr_brigade_split(b, e);
break;
}
nvec++;
}
else {
/* The bucket is a trailer to a file bucket */
if (nvec_trailers == MAX_IOVEC_TO_WRITE) {
/* woah! too many. stop now. */
more = apr_brigade_split(b, e);
break;
}
}
nbytes += n;
}
}
}
/* Completed iterating over the brigades, now determine if we want
* to buffer the brigade or send the brigade out on the network.
*
* Save if:
*
* 1) we didn't see a file, we don't have more passes over the
* brigade to perform, we haven't accumulated enough bytes to
* send, AND we didn't stop at a FLUSH bucket.
* (IOW, we will save away plain old bytes)
* or
* 2) we hit the EOS and have a keep-alive connection
* (IOW, this response is a bit more complex, but we save it
* with the hope of concatenating with another response)
*/
}
/* NEVER save an EOS in here. If we are saving a brigade with
* an EOS bucket, then we are doing keepalive connections, and
* we want to process to second request fully.
*/
if (APR_BUCKET_IS_EOS(last_e)) {
/* If we are in here, then this request is a keepalive. We
* need to be certain that any data in a bucket is valid
* after the request_pool is cleared.
*/
}
APR_BRIGADE_FOREACH(bucket, b) {
const char *str;
apr_size_t n;
/* This apr_brigade_write does not use a flush function
because we assume that we will not write enough data
into it to cause a flush. However, if we *do* write
"too much", then we could end up with transient
buckets which would suck. This works for now, but is
a bit shaky if changes are made to some of the
buffering sizes. Let's do an assert to prevent
potential future problems... */
if (rv != APR_SUCCESS) {
"core_output_filter: Error reading from bucket.");
return rv;
}
}
}
else {
}
return APR_SUCCESS;
}
if (fd) {
#if APR_HAS_SENDFILE
apr_int32_t flags = 0;
#endif
if (nvec) {
}
if (nvec_trailers) {
}
#if APR_HAS_SENDFILE
if (!c->keepalive) {
/* Prepare the socket to be reused */
}
fd, /* the file to send */
&hdtr, /* header and trailer iovecs */
foffset, /* offset in the file to begin
sending from */
flen, /* length of file */
headers */
flags); /* apr_sendfile flags */
/* If apr_sendfile() returns APR_ENOTIMPL, call emulate_sendfile().
* emulate_sendfile() is useful to enable the same Apache binary
* distribution to support Windows NT/2000 (supports TransmitFile)
* and Win95/98 (do not support TransmitFile)
*/
if (rv == APR_ENOTIMPL)
#endif
{
}
}
else {
}
if (rv != APR_SUCCESS) {
"core_output_filter: writing data to the network");
if (more)
if (APR_STATUS_IS_ECONNABORTED(rv) ||
c->aborted = 1;
}
return rv;
}
b = more;
} /* end while () */
ctx->subpool_has_stuff = 0;
}
return APR_SUCCESS;
}
{
}
{
ap_open_logs(s, pconf);
}
static void core_insert_filter(request_rec *r)
{
&core_module);
if (filters) {
}
}
if (filters) {
}
}
}
static int core_create_req(request_rec *r)
{
if (r->main) {
}
else {
}
return OK;
}
static void register_hooks(apr_pool_t *p)
{
/* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
/* register the core's insert_filter hook and register core-provided
* filters
*/
}
create_core_dir_config, /* create per-directory config structure */
merge_core_dir_configs, /* merge per-directory config structures */
create_core_server_config, /* create per-server config structure */
merge_core_server_configs, /* merge per-server config structures */
core_cmds, /* command apr_table_t */
register_hooks /* register hooks */
};