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February 8, 2012 22:12
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Space Core Apache Module
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| /* ==================================================================== | |
| * Copyright (c) 2012 The Apache Group. All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * | |
| * 1. Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * | |
| * 2. Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in | |
| * the documentation and/or other materials provided with the | |
| * distribution. | |
| * | |
| * 3. All advertising materials mentioning features or use of this | |
| * software must display the following acknowledgment: | |
| * "This product includes software developed by the Apache Group | |
| * for use in the Apache HTTP server project (http://www.apache.org/)." | |
| * | |
| * 4. The names "Apache Server" and "Apache Group" must not be used to | |
| * endorse or promote products derived from this software without | |
| * prior written permission. | |
| * | |
| * 5. Redistributions of any form whatsoever must retain the following | |
| * acknowledgment: | |
| * "This product includes software developed by the Apache Group | |
| * for use in the Apache HTTP server project (http://www.apache.org/)." | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY | |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR | |
| * IT'S CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| * ==================================================================== | |
| * | |
| * This software consists of voluntary contributions made by many | |
| * individuals on behalf of the Apache Group and was originally based | |
| * on public domain software written at the National Center for | |
| * Supercomputing Applications, University of Illinois, Urbana-Champaign. | |
| * For more information on the Apache Group and the Apache HTTP server | |
| * project, please see <http://www.apache.org/>. | |
| * | |
| */ | |
| #include "httpd.h" | |
| #include "http_config.h" | |
| #include "http_core.h" | |
| #include "http_log.h" | |
| #include "http_protocol.h" | |
| #include "http_vhost.h" | |
| #include "apr_strings.h" | |
| #include "apr_ring.h" | |
| #include <stdlib.h> | |
| typedef struct _quote_t { | |
| APR_RING_ENTRY(_quote_t) link; | |
| const char *quote; | |
| } quote_t; | |
| typedef struct _quote_ring_t quote_ring_t; | |
| APR_RING_HEAD(_quote_ring_t, _quote_t); | |
| module AP_MODULE_DECLARE_DATA space_core_module; | |
| typedef struct { | |
| quote_ring_t *ring; | |
| int count; | |
| } space_core_server_cfg; | |
| static void *space_core_create_server_cfg(apr_pool_t *p, server_rec *s) { | |
| space_core_server_cfg *cfg = (space_core_server_cfg *)apr_pcalloc(p, sizeof(space_core_server_cfg)); | |
| if (!cfg) | |
| return NULL; | |
| cfg->ring = apr_palloc(p, sizeof(quote_ring_t)); | |
| cfg->count = 0; | |
| APR_RING_INIT(cfg->ring, _quote_t, link); | |
| return (void *)cfg; | |
| } | |
| static const char *space_core_file(cmd_parms *cmd, void *dummy, char *filename) { | |
| server_rec *s = cmd->server; | |
| space_core_server_cfg *cfg = (space_core_server_cfg *)ap_get_module_config(s->module_config, &space_core_module); | |
| char buf[1024] = {0}; | |
| apr_file_t *fd; | |
| apr_file_open(&fd, filename, APR_READ, APR_OS_DEFAULT, cmd->pool); | |
| while(APR_EOF != apr_file_gets(buf, 1024, fd)) { | |
| if(strlen(buf) > 1) { | |
| buf[strlen(buf)-1] = '\0'; | |
| quote_t *elem = apr_palloc(cmd->pool, sizeof(quote_t)); | |
| elem->quote = apr_pstrdup(cmd->pool, buf); | |
| APR_RING_INSERT_TAIL(cfg->ring, elem, _quote_t, link); | |
| cfg->count++; | |
| } | |
| } | |
| return NULL; | |
| } | |
| static const command_rec space_core_cmds[] = { | |
| AP_INIT_TAKE1( | |
| "SpaceCoreFile", | |
| space_core_file, | |
| NULL, | |
| RSRC_CONF, | |
| "Location of Quotes File" | |
| ), | |
| { NULL } | |
| }; | |
| static int ap_headers_fixup(request_rec *r) { | |
| space_core_server_cfg *cfg = (space_core_server_cfg *)ap_get_module_config(r->server->module_config, &space_core_module); | |
| int rand = random() % cfg->count; | |
| quote_t* elem; | |
| for(elem = APR_RING_FIRST(cfg->ring); elem && rand; elem = APR_RING_NEXT(elem, link)) | |
| rand--; | |
| if(elem) | |
| apr_table_set(r->headers_out, "X-Space-Core", elem->quote); | |
| return DECLINED; | |
| } | |
| static void register_hooks(apr_pool_t *p) { | |
| ap_hook_fixups(ap_headers_fixup, NULL, NULL, APR_HOOK_LAST); | |
| } | |
| module AP_MODULE_DECLARE_DATA space_core_module = { | |
| STANDARD20_MODULE_STUFF, | |
| NULL, | |
| NULL, | |
| space_core_create_server_cfg, | |
| NULL, | |
| space_core_cmds, | |
| register_hooks, | |
| }; |
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=== An example Apache Software License 1.1 file ===
This is the original Apache License which applies only to very old versions of Apache packages (such as version 1.2 of the Web server).
/* ====================================================================
*/