mod_include.c revision c815e1cfb2ec4db2e1a94fafd77de045d7fd93db
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* ====================================================================
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The Apache Software License, Version 1.1
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Copyright (c) 2000-2001 The Apache Software Foundation. All rights
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Redistribution and use in source and binary forms, with or without
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * modification, are permitted provided that the following conditions
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 1. Redistributions of source code must retain the above copyright
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * notice, this list of conditions and the following disclaimer.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 2. Redistributions in binary form must reproduce the above copyright
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * notice, this list of conditions and the following disclaimer in
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the documentation and/or other materials provided with the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * distribution.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 3. The end-user documentation included with the redistribution,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * if any, must include the following acknowledgment:
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * "This product includes software developed by the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Apache Software Foundation (http://www.apache.org/)."
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Alternately, this acknowledgment may appear in the software itself,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * if and wherever such third-party acknowledgments normally appear.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 4. The names "Apache" and "Apache Software Foundation" must
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * not be used to endorse or promote products derived from this
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * software without prior written permission. For written
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * permission, please contact apache@apache.org.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 5. Products derived from this software may not be called "Apache",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * nor may "Apache" appear in their name, without prior written
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * permission of the Apache Software Foundation.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * SUCH DAMAGE.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ====================================================================
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * This software consists of voluntary contributions made by many
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * individuals on behalf of the Apache Software Foundation. For more
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * information on the Apache Software Foundation, please see
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Portions of this software are based upon public domain software
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * originally written at the National Center for Supercomputing Applications,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * University of Illinois, Urbana-Champaign.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * http_include.c: Handles the server-parsed HTML documents
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Original by Rob McCool; substantial fixups by David Robinson;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * incorporated into the Apache module framework by rst.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanamodule AP_MODULE_DECLARE_DATA include_module;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic APR_OPTIONAL_FN_TYPE(ap_register_include_handler) *ssi_pfn_register;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/*****************************************************************
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * XBITHACK. Sigh... NB it's configurable per-directory; the compile-time
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * option only changes the default.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana xbithack_off, xbithack_on, xbithack_full
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanatypedef struct {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define BYTE_COUNT_THRESHOLD AP_MIN_BYTES_TO_WRITE
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* ------------------------ Environment function -------------------------- */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* Sentinel value to store in subprocess_env for items that
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * shouldn't be evaluated until/unless they're actually used
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define LAZY_VALUE (&lazy_eval_sentinel)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* XXX: could use ap_table_overlap here */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void add_include_vars(request_rec *r, char *timefmt)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "DATE_LOCAL", LAZY_VALUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "DATE_GMT", LAZY_VALUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "LAST_MODIFIED", LAZY_VALUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "DOCUMENT_URI", r->uri);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "DOCUMENT_PATH_INFO", r->path_info);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "USER_NAME", LAZY_VALUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "DOCUMENT_NAME", ++t);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "DOCUMENT_NAME", r->uri);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana char *arg_copy = apr_pstrdup(r->pool, r->args);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(e, "QUERY_STRING_UNESCAPED",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_escape_shell_cmd(r->pool, arg_copy));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const char *add_include_vars_lazy(request_rec *r, const char *var)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (include_dir_config *)ap_get_module_config(r->per_dir_config,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val = ap_ht_time(r->pool, r->request_time, conf->default_time_fmt, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (!strcasecmp(var, "DATE_GMT")) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (include_dir_config *)ap_get_module_config(r->per_dir_config,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val = ap_ht_time(r->pool, r->request_time, conf->default_time_fmt, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (!strcasecmp(var, "LAST_MODIFIED")) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (include_dir_config *)ap_get_module_config(r->per_dir_config,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val = ap_ht_time(r->pool, r->finfo.mtime, conf->default_time_fmt, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (!strcasecmp(var, "USER_NAME")) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (apr_get_username(&val, r->finfo.user, r->pool) != APR_SUCCESS) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(r->subprocess_env, var, val);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const char *get_include_var(request_rec *r, const char *var)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val = apr_table_get(r->subprocess_env, var);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* --------------------------- Parser functions --------------------------- */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* This is an implementation of the BNDM search algorithm.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Fast and Flexible String Matching by Combining Bit-parallelism and
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Suffix Automata (2001)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Gonzalo Navarro, Mathieu Raffinot
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * http://www-igm.univ-mlv.fr/~raffinot/ftp/jea2001.ps.gz
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Initial code submitted by Sascha Schumann.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanatypedef struct {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana unsigned int T[256];
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana unsigned int x;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* This is the pattern matcher that holds the STARTING_SEQUENCE bndm_t
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* Precompile the bndm_t data structure. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void bndm_compile(bndm_t *t, const char *n, apr_size_t nl)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana unsigned int x;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memset(t->T, 0, sizeof(unsigned int) * 256);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana t->T[(unsigned char) *n++] |= x;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* Implements the BNDM search algorithm (as described above).
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * n - the pattern to search for
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * nl - length of the pattern to search for
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * h - the string to look in
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * hl - length of the string to look for
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * t - precompiled bndm structure against the pattern
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Returns the count of character that is the first match or hl if no
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * match is found.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_size_t bndm(const char *n, apr_size_t nl, const char *h,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana unsigned int *T, x, d;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana x = t->x << 1;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana p = pi + nl; /* compare window right to left. point to the first char */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana d = (d >> 1) & T[(unsigned char) *p--];
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((d & 1)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return p - h + 1;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } while (d > 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* We've now found a start sequence tag... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_bucket* found_start_sequence(apr_bucket *dptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* We want to split the bucket at the '<'. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Split the bucket with the start of the tag in it */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket_split(ctx->head_start_bucket, ctx->head_start_index);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_bkt = APR_BUCKET_NEXT(ctx->head_start_bucket);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If it was a one bucket match */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->tag_start_index = tagStart - ctx->head_start_index;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* This function returns either a pointer to the split bucket containing the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * first byte of the BEGINNING_SEQUENCE (after finding a complete match) or it
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * returns NULL if no match found.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_bucket *find_start_sequence(apr_bucket *dptr, include_ctx_t *ctx,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket_brigade *bb, int *do_cleanup)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana const char *c;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_size_t slen = sizeof(STARTING_SEQUENCE) - 1;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (ctx->bytes_parsed >= BYTE_COUNT_THRESHOLD) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rv = apr_bucket_read(dptr, &buf, &len, APR_NONBLOCK_READ);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket_split(start_bucket, ctx->head_start_index);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana start_bucket = APR_BUCKET_NEXT(start_bucket);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rv = apr_bucket_read(dptr, &buf, &len, APR_BLOCK_READ);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Set our buffer to use. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* The last bucket had a left over partial match that we need to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmpLen = (len > (slen - 1)) ? len : (slen - 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (c < buf + tmpLen && *c == str[ctx->parse_pos])
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return found_start_sequence(dptr, ctx, c - buf);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* False alarm... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana pos = bndm(str, slen, c, len, &start_seq_pat);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return found_start_sequence(dptr, ctx, pos + slen);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Consider the case where we have <!-- at the end of the bucket. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* The reason for this, is that we need to make sure
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * that we catch cases like <<!--#. This makes the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * second check after the original check fails.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * If parse_pos was already 0 then we already checked this.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* FIXME: Why? */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*c == str[0]) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } while (dptr != APR_BRIGADE_SENTINEL(bb));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_bucket *find_end_sequence(apr_bucket *dptr, include_ctx_t *ctx,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana const char *c;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (ctx->bytes_parsed >= BYTE_COUNT_THRESHOLD) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rv = apr_bucket_read(dptr, &buf, &len, APR_NONBLOCK_READ);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* gonna start over parsing the directive next time through */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rv = apr_bucket_read(dptr, &buf, &len, APR_BLOCK_READ);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* We want to split the bucket at the '>'. The
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * end of the END_SEQUENCE is in the current bucket.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The beginning might be in a previous bucket.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* The reason for this, is that we need to make sure
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * that we catch cases like --->. This makes the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * second check after the original check fails.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * If parse_pos was already 0 then we already checked
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*c == str[0]) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (ctx->tag_length > ctx->directive_length) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->directive_length += ctx->parse_pos;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } while (dptr != APR_BRIGADE_SENTINEL(bb));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* This function culls through the buckets that have been set aside in the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ssi_tag_brigade and copies just the directive part of the SSI tag (none
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * of the start and end delimiter bytes are copied).
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_status_t get_combined_directive (include_ctx_t *ctx,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If the tag length is longer than the tmp buffer, allocate space. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (ctx->tag_length > tmp_buf_size-1) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((ctx->combined_tag = apr_pcalloc(r->pool,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } /* Else, just use the temp buffer. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Prime the pump. Start at the beginning of the tag... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Read the bucket... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket_read (dptr, &tmp_from, &tmp_from_len, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Adjust the pointer to start at the tag within the bucket... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_from_len -= (tmp_from_len - ctx->tail_start_index);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_from = &tmp_from[ctx->tag_start_index];
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Loop through the buckets from the tag_start_bucket until before
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the tail_start_bucket copying the contents into the buffer.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (ctx->curr_tag_pos, tmp_from, tmp_from_len);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket_read (dptr, &tmp_from, &tmp_from_len, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Adjust the count to stop at the beginning of the tail. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_from_len -= (tmp_from_len - ctx->tail_start_index);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } while ((!done) &&
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (ctx->curr_tag_pos < ctx->combined_tag + ctx->tag_length));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->combined_tag[ctx->tag_length] = '\0';
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * decodes a string containing html entities or numeric character references.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 's' is overwritten with the decoded string.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * If 's' is syntatically incorrect, then the followed fixups will be made:
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * unknown entities will be left undecoded;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * references to unused numeric characters will be deleted.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * In particular, � will not be decoded, but will be deleted.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* maximum length of any ISO-LATIN-1 HTML entity name. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* The following is a shrinking transformation, therefore safe. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void decodehtml(char *s)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana static const char * const entlist[MAXENTLEN + 1] =
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "quot\042Auml\304Euml\313Iuml\317Ouml\326Uuml\334auml\344euml\353\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaiuml\357ouml\366uuml\374yuml\377", /* 4 */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Acirc\302Aring\305AElig\306Ecirc\312Icirc\316Ocirc\324Ucirc\333\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh NagabhushanaTHORN\336szlig\337acirc\342aring\345aelig\346ecirc\352icirc\356ocirc\364\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Agrave\300Aacute\301Atilde\303Ccedil\307Egrave\310Eacute\311\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh NagabhushanaIgrave\314Iacute\315Ntilde\321Ograve\322Oacute\323Otilde\325Oslash\330\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh NagabhushanaUgrave\331Uacute\332Yacute\335agrave\340aacute\341atilde\343ccedil\347\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaegrave\350eacute\351igrave\354iacute\355ntilde\361ograve\362oacute\363\
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaotilde\365oslash\370ugrave\371uacute\372yacute\375" /* 6 */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Do a fast scan through the string until we find anything
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * that needs more complicated handling
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (; *s != '&'; s++) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*s == '\0') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (p = s; *s != '\0'; s++, p++) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*s != '&') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* find end of entity */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (i = 1; s[i] != ';' && s[i] != '\0'; i++) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (s[i] == '\0') { /* treat as normal data */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* is it numeric ? */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (j = 2, val = 0; j < i && apr_isdigit(s[j]); j++) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (j < i || val <= 8 || (val >= 11 && val <= 31) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (val >= 127 && val <= 160) || val >= 256) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana p--; /* no data to output */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (j > MAXENTLEN || entlist[j] == NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* wrong length */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana continue; /* skip it */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (ents = entlist[j]; *ents != '\0'; ents += i) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *p = RAW_ASCII_CHAR(((const unsigned char *) ents)[j]);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Extract the next tag name and value.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * If there are no more tags, set the tag name to NULL.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The tag value is html decoded if dodecode is non-zero.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The tag value may be NULL if there is no tag value..
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * [WS]<Tag>[WS]=[WS]['|"]<Value>['|"|WS]
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define SKIP_TAG_WHITESPACE(ptr) while ((*ptr != '\0') && (apr_isspace (*ptr))) ptr++
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void ap_ssi_get_tag_and_value(include_ctx_t *ctx, char **tag,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *tag = c; /* First non-whitespace character (could be NULL). */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana c++; /* Optimization for the common case where the tag */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } /* is already lowercase */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while ((*c != '=') && (!apr_isspace(*c)) && (*c != '\0')) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *c = apr_tolower(*c); /* find end of tag, lowercasing as we go... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((**tag == '\0') || (**tag == '=')) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return; /* We have found the end of the buffer. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } /* We might have a tag, but definitely no value. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*c == '=') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *c++ = '\0'; /* Overwrite the '=' with a terminating byte after tag. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else { /* Try skipping WS to find the '='. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *c++ = '\0'; /* Terminate the tag... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* There needs to be an equal sign if there's a value. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*c != '=') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return; /* There apparently was no value. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana c++; /* Skip the equals sign. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Allow quoted values for space inclusion. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana term = *c++; /* NOTE: This does not pass the quotes on return. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while ((*c != '\0') &&
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ((term == '\0') && (!apr_isspace(*c))))) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*c == '\\') { /* Accept \" and \' as valid char in string. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (*c == term) { /* Overwrite the "\" during the embedded */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana shift_val++; /* escape sequence of '\"' or "\'". Shift */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } /* bytes from here to next delimiter. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *(c-shift_val) = '\0'; /* Overwrites delimiter (term or WS) with NULL. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Do variable substitution on strings
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void ap_ssi_parse_string(request_rec *r, const char *in, char *out,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* leave room for nul terminator */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* truncated */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana char *end_of_var_name; /* end of var name + 1 */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana const char *expansion, *temp_end, *val;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* guess that the expansion won't happen */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana 0, r, "Missing '}' on variable \"%s\"",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (apr_isalnum(*in) || *in == '_') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* what a pain, too bad there's no table_getn where you can
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * pass a non-nul terminated string */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana l = end_of_var_name - start_of_var_name;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val = get_include_var(r, start_of_var_name);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* no expansion to be done */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* zero-length variable name causes just the $ to be
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana l = ((int)l > end_out - next) ? (end_out - next) : l;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* truncated */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* --------------------------- Action handlers ---------------------------- */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* ensure that path is relative, and does not contain ".." elements
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ensentially ensure that it does not match the regex:
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * (^/|(^|/)\.\.(/|$))
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * XXX: Simply replace with apr_filepath_merge
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int is_only_below(const char *path)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If the name is canonical this is redundant
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * but in security, redundancy is worthwhile.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Does OS2 belong here (accepts ... for ..)?
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (dots > 1 && (!path[dots] || path[dots] == '/'))
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (dots == 2 && (!path[dots] || path[dots] == '/'))
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_include(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!strcmp(tag, "virtual") || !strcmp(tag, "file")) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, parsed_string,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: Port to apr_filepath_merge
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * be safe; only files in this directory or below allowed
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "unable to include file \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rr = ap_sub_req_lookup_file(parsed_string, r, f->next);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rr = ap_sub_req_lookup_uri(parsed_string, r, f->next);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!error_fmt && rr->status != HTTP_OK) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "unable to include \"%s\" in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!error_fmt && (ctx->flags & FLAG_NO_EXEC) &&
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (strncmp(rr->content_type, "text/", 5))) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "unable to include potential exec \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* try to avoid recursive includes. We do this by walking
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * up the r->main list of subrequests, and at each level
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * walking back through any internal redirects. At each
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * step, we compare the filenames and the URIs.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The filename comparison catches a recursive include
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * with an ever-changing URL, eg.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * <!--#include virtual=
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * "$REQUEST_URI/$QUERY_STRING?$QUERY_STRING/x"-->
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * which, although they would eventually be caught because
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * we have a limit on the length of files, etc., can
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * recurse for a while.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The URI comparison catches the case where the filename
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * is changed while processing the request, so the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * current name is never the same as any previous one.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * This can happen with "DocumentRoot /foo" when you
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * request "/" on the server and it includes "/".
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * This only applies to modules such as mod_dir that
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * (somewhat improperly) mess with r->filename outside
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * of a filename translation phase.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (p = r; p != NULL && !founddupe; p = p->main) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (strcmp(q->filename, rr->filename) == 0)) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "Recursive include of \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* See the Kludge in send_parsed_file for why */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Basically, it puts a bread crumb in here, then looks */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* for the crumb later to see if its been here. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_set_module_config(rr->request_config,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana SPLIT_AND_PASS_PRETAG_BUCKETS(*bb, ctx, f->next, rc);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* let's not clutter the log on a busy server */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unable to include \"%s\" in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|loglevel,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana 0, r, error_fmt, tag_val, r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* destroy the sub request */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown parameter \"%s\" to tag include in %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_echo(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana const char *val = get_include_var(r, tag_val);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana echo_text = ap_escape_uri(r->pool, val);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana echo_text = ap_escape_html(r->pool, val);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: it'd probably be nice to use a pool bucket here */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(echo_text, e_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_immortal_create("(none)",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!strcasecmp(tag_val, "none")) encode = E_NONE;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (!strcasecmp(tag_val, "url")) encode = E_URL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (!strcasecmp(tag_val, "entity")) encode = E_ENTITY;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown value \"%s\" to parameter \"encoding\" of "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "tag echo in %s", tag_val, r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown parameter \"%s\" in tag echo of %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* error and tf must point to a string with room for at
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * least MAX_STRING_LEN characters
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_config(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return 0; /* Reached the end of the string. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->error_str_override = (char *)apr_palloc(ctx->pool,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->error_str = ctx->error_str_override;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, ctx->error_str_override,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->time_str_override = (char *)apr_palloc(ctx->pool,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->time_str = ctx->time_str_override;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, ctx->time_str_override,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(env, "DATE_LOCAL", ap_ht_time(r->pool, date,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(env, "DATE_GMT", ap_ht_time(r->pool, date,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, parsed_string,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (!strcmp(parsed_string, "abbrev")) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown parameter \"%s\" to tag config in %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int find_file(request_rec *r, const char *directive, const char *tag,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: Port to apr_filepath_merge
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * be safe; only files in this directory or below allowed
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "unable to access file \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_getparents(tag_val); /* get rid of any nasties */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* note: it is okay to pass NULL for the "next filter" since
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana we never attempt to "run" this sub request. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rr = ap_sub_req_lookup_file(tag_val, r, NULL);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (rr->status == HTTP_OK && rr->finfo.filetype != 0) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_FINFO_GPROT | APR_FINFO_MIN, rr->pool)) != APR_SUCCESS
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "unable to get information about \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana error_fmt = "unable to lookup information about \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_ERR | (rv ? 0 : APLOG_NOERRNO),
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rv, r, error_fmt, to_send, r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* note: it is okay to pass NULL for the "next filter" since
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana we never attempt to "run" this sub request. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rr = ap_sub_req_lookup_uri(tag_val, r, NULL);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (rr->status == HTTP_OK && rr->finfo.filetype != 0) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy((char *) finfo, (const char *) &rr->finfo,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unable to get information about \"%s\" "
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "in parsed file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown parameter \"%s\" to tag %s in %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_fsize(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, parsed_string,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!find_file(r, "fsize", tag, parsed_string, &finfo)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: if we *know* we're going to have to copy the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * thing off of the stack anyway, why not palloc buff
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * instead of sticking it on the stack; then we can just
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * use a pool bucket and skip the copy
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!(ctx->flags & FLAG_SIZE_IN_BYTES)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana int l, x, pos = 0;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_snprintf(tmp_buff, sizeof(tmp_buff),
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (x = 0; x < l; x++) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (x && (!((l - x) % 3))) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(buff, s_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_flastmod(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket *head_ptr, apr_bucket **inserted_head)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, parsed_string,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!find_file(r, "flastmod", tag, parsed_string, &finfo)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana t_val = ap_ht_time(r->pool, finfo.mtime, ctx->time_str, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: t_val was already pstrdup'ed into r->pool by
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ap_ht_time. no sense copying it again to the heap.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * should just use a pool bucket */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(t_val, t_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int re_check(request_rec *r, char *string, char *rexp)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana compiled = ap_pregcomp(r->pool, rexp, REG_EXTENDED | REG_NOSUB);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unable to compile pattern \"%s\"", rexp);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana regex_error = ap_regexec(compiled, string, 0, (regmatch_t *) NULL, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana token_and, token_or, token_not, token_eq, token_ne,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana token_rbrace, token_lbrace, token_group,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* there is an implicit assumption here that string is at most MAX_STRING_LEN-1
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * characters long...
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const char *get_ptoken(request_rec *r, const char *string,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Skip leading white space */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return (char *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return (char *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana token->type = token_string; /* the default type */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* We should only be here if we are in a string */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Yes I know that goto's are BAD. But, c doesn't allow me to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * exit a loop from a switch statement. Yes, I could use a flag,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * but that is (IMHO) even less readable/maintainable than the goto.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * I used the ++string throughout this section so that string
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ends up pointing to the next token and I can just return it
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (ch = *string; ((ch != '\0') && (!tkn_fnd)); ch = *++string) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If qs is still set, I have an unmatched ' */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Hey I still know that goto's are BAD. I don't think that I've ever
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * used two in the same project, let alone the same file before. But,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * I absolutely want to make sure that I clean up the memory in all
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * cases. And, without rewriting this completely, the easiest way
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * is to just branch to the return code which cleans it up.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* there is an implicit assumption here that expr is at most MAX_STRING_LEN-1
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * characters long...
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int parse_expr(request_rec *r, const char *expr, int *was_error,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana struct parse_node *left, *right, *parent;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana root = current = (struct parse_node *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (apr_pool_create(&expr_pool, r->pool) != APR_SUCCESS)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Create Parse Tree */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana new = (struct parse_node *) apr_palloc(expr_pool,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof(struct parse_node));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana new->parent = new->left = new->right = (struct parse_node *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((parse = get_ptoken(r, parse, &new->token, was_unmatched)) ==
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos],
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana " Token: string (%s)\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana strncat(current->token.value, new->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->token.value[sizeof(current->token.value) - 1] = '\0';
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (&debug[debug_pos], " Token: and/or\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof (" Token: and/or\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof (" Token: and/or\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Percolate upwards */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (current != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana new->parent = (struct parse_node *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy(&debug[debug_pos], " Token: not\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof(" Token: not\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Percolate upwards */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (current != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana new->parent = (struct parse_node *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy(&debug[debug_pos], " Token: eq/ne/ge/gt/le/lt\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof(" Token: eq/ne/ge/gt/le/lt\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof(" Token: eq/ne/ge/gt/le/lt\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Percolate upwards */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (current != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana new->parent = (struct parse_node *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (&debug[debug_pos], " Token: rbrace\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof (" Token: rbrace\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof (" Token: rbrace\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (current != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->token.type == token_lbrace) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Unmatched ')' in \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (&debug[debug_pos], " Token: lbrace\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof (" Token: lbrace\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof (" Token: lbrace\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Percolate upwards */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (current != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana new->parent = (struct parse_node *) NULL;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Evaluate Parse Tree */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (current != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (&debug[debug_pos], " Evaluate string\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof (" Evaluate string\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof (" Evaluate string\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->value = (current->token.value[0] != '\0');
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy(&debug[debug_pos], " Evaluate and/or\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof(" Evaluate and/or\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof(" Evaluate and/or\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->left == (struct parse_node *) NULL ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->right == (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->left->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->left->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->left->token.value[0] != '\0');
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->right->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->right->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->right->token.value[0] != '\0');
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Left: %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Right: %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->token.type == token_and) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->value = current->left->value && current->right->value;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->value = current->left->value || current->right->value;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Returning %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (&debug[debug_pos], " Evaluate eq/ne\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof (" Evaluate eq/ne\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof (" Evaluate eq/ne\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((current->left == (struct parse_node *) NULL) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->right == (struct parse_node *) NULL) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->left->token.type != token_string) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->right->token.type != token_string)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->left->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->left->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->right->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->right->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->right->token.value[0] == '/') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana len = strlen(current->right->token.value);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->right->token.value[len - 1] == '/') {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->right->token.value[len - 1] = '\0';
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid rexp \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->right->token.value, r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos],
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana " Re Compare (%s) with /%s/\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana re_check(r, current->left->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos],
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana " Compare (%s) with (%s)\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Returning %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy (&debug[debug_pos], " Evaluate ge/gt/le/lt\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana sizeof (" Evaluate ge/gt/le/lt\n"));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sizeof (" Evaluate ge/gt/le/lt\n");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((current->left == (struct parse_node *) NULL) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->right == (struct parse_node *) NULL) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->left->token.type != token_string) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (current->right->token.type != token_string)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid expression \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->left->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->left->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, current->right->token.value,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_cpystrn(current->right->token.value, buffer,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos],
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana " Compare (%s) with (%s)\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (current->token.type == token_gt) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (current->token.type == token_le) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (current->token.type == token_lt) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->value = 0; /* Don't return -1 if unknown token */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Returning %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->right != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->value = !current->right->value;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Evaluate !: %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (current->right != (struct parse_node *) NULL) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana current->value = current->right->value;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana debug_pos += sprintf (&debug[debug_pos], " Evaluate (): %c\n",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Unmatched '(' in \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Unmatched ')' in \"%s\" in file %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "bad token type");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana retval = (root == (struct parse_node *) NULL) ? 0 : root->value;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/*-------------------------------------------------------------------------*/
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* XXX overlaying the static string pointed to by cond_txt isn't cool */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define LOG_COND_STATUS(cntx, t_buck, h_ptr, ins_head, tag_text) \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana char *cond_txt = "**** X conditional_status=\"0\"\n"; \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memcpy(&cond_txt[5], tag_text, sizeof(tag_text)); \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana t_buck = apr_bucket_heap_create(cond_txt, sizeof(cond_txt), 1); \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(h_ptr, t_buck); \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define DUMP_PARSE_EXPR_DEBUG(t_buck, h_ptr, d_buf, ins_head) \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana t_buck = apr_bucket_heap_create(d_buf, strlen(d_buf), 1); \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(h_ptr, t_buck); \
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define LOG_COND_STATUS(cntx, t_buck, h_ptr, ins_head, tag_text)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#define DUMP_PARSE_EXPR_DEBUG(t_buck, h_ptr, d_buf, ins_head)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/*-------------------------------------------------------------------------*/
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* pjr - These seem to allow expr="fred" expr="joe" where joe overwrites fred. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_if(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana int expr_ret, was_error, was_unmatched;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "missing expr in if statement: %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana expr_ret = parse_expr(r, expr, &was_error, &was_unmatched,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana DUMP_PARSE_EXPR_DEBUG(tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana DUMP_PARSE_EXPR_DEBUG(tmp_buck, head_ptr, debug_buf,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->flags |= (FLAG_PRINTING | FLAG_COND_TRUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana LOG_COND_STATUS(ctx, tmp_buck, head_ptr, *inserted_head,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana d_len = sprintf(debug_buf, "**** if expr=\"%s\"\n", expr);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(debug_buf, d_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown parameter \"%s\" to tag if in %s", tag,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_elif(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana int expr_ret, was_error, was_unmatched;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana LOG_COND_STATUS(ctx, tmp_buck, head_ptr, *inserted_head,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "missing expr in elif statement: %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana expr_ret = parse_expr(r, expr, &was_error, &was_unmatched,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana DUMP_PARSE_EXPR_DEBUG(tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana DUMP_PARSE_EXPR_DEBUG(tmp_buck, head_ptr, debug_buf,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->flags |= (FLAG_PRINTING | FLAG_COND_TRUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana LOG_COND_STATUS(ctx, tmp_buck, head_ptr, *inserted_head,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana d_len = sprintf(debug_buf, "**** elif expr=\"%s\"\n", expr);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(debug_buf, d_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown parameter \"%s\" to tag if in %s", tag,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_else(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((tag != NULL) || (tag_val != NULL)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "else directive does not take tags in %s", r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana LOG_COND_STATUS(ctx, tmp_buck, head_ptr, *inserted_head, " else");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->flags |= (FLAG_PRINTING | FLAG_COND_TRUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_endif(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((tag != NULL) || (tag_val != NULL)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "endif directive does not take tags in %s", r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana LOG_COND_STATUS(ctx, tmp_buck, head_ptr, *inserted_head, "endif");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->flags |= (FLAG_PRINTING | FLAG_COND_TRUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_set(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *r, ap_filter_t *f, apr_bucket *head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((tag == NULL) && (tag_val == NULL)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "variable must precede value in set directive in %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_parse_string(r, tag_val, parsed_string,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(r->subprocess_env, apr_pstrdup(r->pool, var),
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid tag for set directive in %s", r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int handle_printenv(include_ctx_t *ctx, apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket *head_ptr, apr_bucket **inserted_head)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_ssi_get_tag_and_value(ctx, &tag, &tag_val, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((tag == NULL) && (tag_val == NULL)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana const apr_array_header_t *arr = apr_table_elts(r->subprocess_env);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana const apr_table_entry_t *elts = (const apr_table_entry_t *)arr->elts;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana key_text = ap_escape_html(r->pool, elts[i].key);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val_text = add_include_vars_lazy(r, elts[i].key);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana val_text = ap_escape_html(r->pool, elts[i].val);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: this isn't a very efficient way to do this. Buckets
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * aren't optimized for single-byte allocations. All of
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * this stuff is getting copied anyway, so it'd be better to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * pstrcat them into a single pool buffer and use a single
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * pool bucket. Less alloc calls, easier to send out to the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Key_text */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(key_text, k_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_immortal_create("=", 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Value_text */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_heap_create(val_text, v_len, 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* newline... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_buck = apr_bucket_immortal_create("\n", 1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_INSERT_BEFORE(head_ptr, tmp_buck);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "printenv directive does not take tags in %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_buck, head_ptr, *inserted_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/* -------------------------- The main function --------------------------- */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_status_t send_parsed_content(apr_bucket_brigade **bb,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket *dptr = APR_BRIGADE_FIRST(*bb);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (r->args) { /* add QUERY stuff to env cause it ain't yet */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana char *arg_copy = apr_pstrdup(r->pool, r->args);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(r->subprocess_env, "QUERY_STRING", r->args);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_setn(r->subprocess_env, "QUERY_STRING_UNESCAPED",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_escape_shell_cmd(r->pool, arg_copy));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while (dptr != APR_BRIGADE_SENTINEL(*bb)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* State to check for the STARTING_SEQUENCE. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((ctx->state == PRE_HEAD) || (ctx->state == PARSE_HEAD)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_size_t cleanup_bytes = ctx->parse_pos;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_dptr = find_start_sequence(dptr, ctx, *bb, &do_cleanup);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_STATUS_IS_SUCCESS(ctx->status)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* The few bytes stored in the ssi_tag_brigade turned out not to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * be a tag after all. This can only happen if the starting
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * tag actually spans brigades. This should be very rare.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((do_cleanup) && (!APR_BRIGADE_EMPTY(ctx->ssi_tag_brigade))) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_bkt = apr_bucket_immortal_create(STARTING_SEQUENCE,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_brigade_cleanup(ctx->ssi_tag_brigade);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If I am inside a conditional (if, elif, else) that is false
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * then I need to throw away anything contained in it.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((!(ctx->flags & FLAG_PRINTING)) && (tmp_dptr != NULL) &&
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana while ((dptr != APR_BRIGADE_SENTINEL(*bb)) &&
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Adjust the current bucket position based on what was found... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((tmp_dptr != NULL) && (ctx->state == PARSE_DIRECTIVE)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (ctx->bytes_parsed >= BYTE_COUNT_THRESHOLD))) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Send the large chunk of pre-tag bytes... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tag_and_after = apr_brigade_split(*bb, tmp_dptr);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* There was no possible SSI tag in the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * remainder of this brigade... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* State to check for the ENDING_SEQUENCE. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (((ctx->state == PARSE_DIRECTIVE) ||
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tmp_dptr = find_end_sequence(dptr, ctx, *bb);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_STATUS_IS_SUCCESS(ctx->status)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana dptr = tmp_dptr; /* Adjust bucket pos... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If some of the tag has already been set aside then set
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * aside remainder of tag. Now the full tag is in
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ssi_tag_brigade.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * If none has yet been set aside, then leave it all where it
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * In any event after this the entire set of tag buckets will
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * be in one place or another.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_BRIGADE_EMPTY(ctx->ssi_tag_brigade)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tag_and_after = apr_brigade_split(*bb, dptr);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BRIGADE_CONCAT(ctx->ssi_tag_brigade, *bb);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (ctx->bytes_parsed >= BYTE_COUNT_THRESHOLD)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana SPLIT_AND_PASS_PRETAG_BUCKETS(*bb, ctx, f->next, rv);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* remainder of this brigade... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* State to processed the directive... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket *content_head = NULL, *tmp_bkt;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana int (*handle_func)(include_ctx_t *, apr_bucket_brigade **,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana request_rec *, ap_filter_t *, apr_bucket *,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* By now the full tag (all buckets) should either be set aside into
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ssi_tag_brigade or contained within the current bb. All tag
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * processing from here on can assume that.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* At this point, everything between ctx->head_start_bucket and
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ctx->tail_start_bucket is an SSI
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * directive, we just have to deal with it now.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (get_combined_directive(ctx, r, *bb, tmp_buf,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "mod_include: error copying directive in %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_bkt, dptr, content_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* DO CLEANUP HERE!!!!! */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_BRIGADE_EMPTY(ctx->ssi_tag_brigade)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_brigade_cleanup(ctx->ssi_tag_brigade);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (tmp_dptr != APR_BRIGADE_SENTINEL(*bb)));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Can't destroy the tag buckets until I'm done processing
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * because the combined_tag might just be pointing to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the contents of a single bucket!
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Retrieve the handler function to be called for this directive
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * from the functions registered in the hash table.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Need to lower case the directive for proper matching. Also need
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * to have it NULL terminated (and include the NULL in the length)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * for proper hash matching.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana for (tmp_i = 0; tmp_i < ctx->directive_length; tmp_i++) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->combined_tag[ctx->directive_length] = '\0';
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->curr_tag_pos = &ctx->combined_tag[ctx->directive_length+1];
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (include_handler_fn_t *)apr_hash_get(include_hash,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana rv = (*handle_func)(ctx, bb, r, f, dptr, &content_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "unknown directive \"%s\" in parsed doc %s",
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_bkt, dptr, content_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* This chunk of code starts at the first bucket in the chain
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * of tag buckets (assuming that by this point the bucket for
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the STARTING_SEQUENCE has been split) and loops through to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the end of the tag buckets freeing them all.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Remember that some part of this may have been set aside
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * into the ssi_tag_brigade and the remainder (possibly as
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * little as one byte) will be in the current brigade.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The value of dptr should have been set during the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * PARSE_TAIL state to the first bucket after the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ENDING_SEQUENCE.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * The value of content_head may have been set during processing
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * of the directive. If so, the content was inserted in front
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * of the dptr bucket. The inserted buckets should not be thrown
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * away here, but they should also not be parsed later.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_BRIGADE_EMPTY(ctx->ssi_tag_brigade)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_brigade_cleanup(ctx->ssi_tag_brigade);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (tmp_dptr != APR_BRIGADE_SENTINEL(*bb)));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana memset (ctx->combined_tag, '\0', ctx->tag_length);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Don't reset the flags or the nesting level!!! */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_BRIGADE_EMPTY(ctx->ssi_tag_brigade)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_brigade_cleanup(ctx->ssi_tag_brigade);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* If I am in the middle of parsing an SSI tag then I need to set aside
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the pertinent trailing buckets and pass on the initial part of the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * brigade. The pertinent parts of the next brigades will be added to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * these set aside buckets to form the whole tag and will be processed
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * once the whole tag has been found.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Inside a false conditional (if, elif, else), so toss it all... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((dptr != APR_BRIGADE_SENTINEL(*bb)) &&
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana } while (dptr != APR_BRIGADE_SENTINEL(*bb));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Otherwise pass it along...
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * No SSI tags in this brigade... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else if (ctx->state == PARSED) { /* Invalid internal condition... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket *content_head = NULL, *tmp_bkt;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Invalid mod_include state during file %s", r->filename);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana CREATE_ERROR_BUCKET(ctx, tmp_bkt, APR_BRIGADE_FIRST(*bb), content_head);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else { /* Entire brigade is middle chunk of SSI tag... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!APR_BRIGADE_EMPTY(ctx->ssi_tag_brigade)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BRIGADE_CONCAT(ctx->ssi_tag_brigade, *bb);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana else { /* End of brigade contains part of SSI tag... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_bucket_split(ctx->head_start_bucket, ctx->head_start_index);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_BUCKET_NEXT(ctx->head_start_bucket);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Set aside tag, pass pre-tag... */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana tag_and_after = apr_brigade_split(*bb, ctx->head_start_bucket);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_save_brigade(f, &ctx->ssi_tag_brigade, &tag_and_after, r->pool);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void *create_includes_dir_config(apr_pool_t *p, char *dummy)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (include_dir_config *)apr_palloc(p, sizeof(include_dir_config));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana enum xbithack *xbh = (enum xbithack *) apr_palloc(p, sizeof(enum xbithack));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana result->default_error_msg = DEFAULT_ERROR_MSG;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana result->default_time_fmt = DEFAULT_TIME_FORMAT;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const char *set_xbithack(cmd_parms *cmd, void *xbp, const char *arg)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana include_dir_config *conf = (include_dir_config *)xbp;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana return "XBitHack must be set to Off, On, or Full";
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic apr_status_t includes_filter(ap_filter_t *f, apr_bucket_brigade *b)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana (include_dir_config *)ap_get_module_config(r->per_dir_config,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!(ap_allow_options(r) & OPT_INCLUDES)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana f->ctx = ctx = apr_pcalloc(f->c->pool, sizeof(*ctx));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->flags = (FLAG_PRINTING | FLAG_COND_TRUE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (ap_allow_options(r) & OPT_INCNOEXEC) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->ssi_tag_brigade = apr_brigade_create(f->c->pool);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->error_str = conf->default_error_msg;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ctx->time_str = conf->default_time_fmt;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if ((parent = ap_get_module_config(r->request_config, &include_module))) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Kludge --- for nested includes, we want to keep the subprocess
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * environment of the base document (for compatibility); that means
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * torquing our own last_modified date as well so that the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * LAST_MODIFIED variable gets reset to the proper value if the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * nested document resets <!--#config timefmt-->.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * We also insist that the memory for this subrequest not be
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * destroyed, that's dealt with in handle_include().
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana r->subprocess_env = r->main->subprocess_env;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* we're not a nested include, so we create an initial
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * environment */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana add_include_vars(r, conf->default_time_fmt);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* XXX: this is bogus, at some point we're going to do a subrequest,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * and when we do it we're going to be subjecting code that doesn't
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * expect to be signal-ready to SIGALRM. There is no clean way to
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * fix this, except to put alarm support into BUFF. -djg
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Always unset the content-length. There is no way to know if
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the content will be modified at some point by send_parsed_content.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * It is very possible for us to not find any content in the first
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 9k of the file, but still have to modify the content of the file.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * If we are going to pass the file through send_parsed_content, then
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * the content-length should just be unset.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_unset(f->r->headers_out, "Content-Length");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Always unset the ETag/Last-Modified fields - see RFC2616 - 13.3.4.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * We don't know if we are going to be including a file or executing
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * a program which may change the Last-Modified header or make the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * content completely dynamic. Therefore, we can't support these
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Exception: XBitHack full means we *should* set the Last-Modified field.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_unset(f->r->headers_out, "ETag");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* Assure the platform supports Group protections */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana && (r->finfo.protection & APR_GEXECUTE)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_table_unset(f->r->headers_out, "Last-Modified");
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void ap_register_include_handler(char *tag, include_handler_fn_t *func)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana apr_hash_set(include_hash, tag, strlen(tag), (const void *)func);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int include_post_config(apr_pool_t *p, apr_pool_t *plog,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* compile the pattern used by find_start_sequence */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana bndm_compile(&start_seq_pat, STARTING_SEQUENCE,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register = APR_RETRIEVE_OPTIONAL_FN(ap_register_include_handler);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register("endif", handle_endif);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register("fsize", handle_fsize);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register("config", handle_config);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register("include", handle_include);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register("flastmod", handle_flastmod);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ssi_pfn_register("printenv", handle_printenv);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const char *set_default_error_msg(cmd_parms *cmd, void *mconfig, const char *msg)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana include_dir_config *conf = (include_dir_config *)mconfig;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana conf->default_error_msg = apr_pstrdup(cmd->pool, msg);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const char *set_default_time_fmt(cmd_parms *cmd, void *mconfig, const char *fmt)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana include_dir_config *conf = (include_dir_config *)mconfig;
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana conf->default_time_fmt = apr_pstrdup(cmd->pool, fmt);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Module definition and configuration data structs...
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic const command_rec includes_cmds[] =
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana AP_INIT_TAKE1("XBitHack", set_xbithack, NULL, OR_OPTIONS,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "Off, On, or Full"),
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana AP_INIT_TAKE1("SSIErrorMsg", set_default_error_msg, NULL, OR_ALL,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana AP_INIT_TAKE1("SSITimeFormat", set_default_time_fmt, NULL, OR_ALL,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana "a strftime(3) formatted string"),
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic int xbithack_handler(request_rec *r)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#if defined(OS2) || defined(WIN32) || defined(NETWARE)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* OS/2 dosen't currently support the xbithack. This is being worked on. */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana conf = (include_dir_config *) ap_get_module_config(r->per_dir_config,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (!(r->finfo.protection & APR_UEXECUTE)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana /* We always return declined, because the default handler will actually
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * serve the file. All we have to do is add the filter.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_add_output_filter("INCLUDES", NULL, r, r->connection);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void insert_filter(request_rec *r)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana if (r->handler && (strcmp(r->handler, "server-parsed") == 0)) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_add_output_filter("INCLUDES", NULL, r, r->connection);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanastatic void register_hooks(apr_pool_t *p)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_REGISTER_OPTIONAL_FN(ap_ssi_get_tag_and_value);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_REGISTER_OPTIONAL_FN(ap_ssi_parse_string);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana APR_REGISTER_OPTIONAL_FN(ap_register_include_handler);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_hook_post_config(include_post_config, NULL, NULL, APR_HOOK_REALLY_FIRST);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_hook_handler(xbithack_handler, NULL, NULL, APR_HOOK_MIDDLE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_hook_insert_filter(insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana ap_register_output_filter("INCLUDES", includes_filter, AP_FTYPE_CONTENT);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanamodule AP_MODULE_DECLARE_DATA include_module =
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana create_includes_dir_config, /* dir config creater */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana NULL, /* dir merger --- default is to override */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana includes_cmds, /* command apr_table_t */