diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/modules/loggers/mod_log_forensic.c')
-rw-r--r-- | rubbos/app/httpd-2.0.64/modules/loggers/mod_log_forensic.c | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/rubbos/app/httpd-2.0.64/modules/loggers/mod_log_forensic.c b/rubbos/app/httpd-2.0.64/modules/loggers/mod_log_forensic.c deleted file mode 100644 index 35ea369d..00000000 --- a/rubbos/app/httpd-2.0.64/modules/loggers/mod_log_forensic.c +++ /dev/null @@ -1,288 +0,0 @@ -/* Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You under the Apache License, Version 2.0 - * (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * See also support/check_forensic. - * Relate the forensic log to the transfer log by including - * %{forensic-id}n in the custom log format, for example: - * CustomLog logs/custom "%h %l %u %t \"%r\" %>s %b %{forensic-id}n" - * - * Credit is due to Tina Bird <tbird precision-guesswork.com>, whose - * idea this module was. - * - * Ben Laurie 29/12/2003 - */ - -#include "httpd.h" -#include "http_config.h" -#include "http_log.h" -#include "apr_strings.h" -#include "apr_atomic.h" -#include "http_protocol.h" -#include "test_char.h" -#if APR_HAVE_UNISTD_H -#include <unistd.h> -#endif - -module AP_MODULE_DECLARE_DATA log_forensic_module; - -typedef struct fcfg { - const char *logname; - apr_file_t *fd; -} fcfg; - -static void *make_forensic_log_scfg(apr_pool_t *p, server_rec *s) -{ - fcfg *cfg = apr_pcalloc(p, sizeof *cfg); - - cfg->logname = NULL; - cfg->fd = NULL; - - return cfg; -} - -static void *merge_forensic_log_scfg(apr_pool_t *p, void *parent, void *new) -{ - fcfg *cfg = apr_pcalloc(p, sizeof *cfg); - fcfg *pc = parent; - fcfg *nc = new; - - cfg->logname = apr_pstrdup(p, nc->logname ? nc->logname : pc->logname); - cfg->fd = NULL; - - return cfg; -} - -static int open_log(server_rec *s, apr_pool_t *p) -{ - fcfg *cfg = ap_get_module_config(s->module_config, &log_forensic_module); - - if (!cfg->logname || cfg->fd) - return 1; - - if (*cfg->logname == '|') { - piped_log *pl; - const char *pname = ap_server_root_relative(p, cfg->logname + 1); - - pl = ap_open_piped_log(p, pname); - if (pl == NULL) { - ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, - "couldn't spawn forensic log pipe %s", cfg->logname); - return 0; - } - cfg->fd = ap_piped_log_write_fd(pl); - } - else { - const char *fname = ap_server_root_relative(p, cfg->logname); - apr_status_t rv; - - if ((rv = apr_file_open(&cfg->fd, fname, - APR_WRITE | APR_APPEND | APR_CREATE, - APR_OS_DEFAULT, p)) != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_ERR, rv, s, - "could not open forensic log file %s.", fname); - return 0; - } - } - - return 1; -} - -static int log_init(apr_pool_t *pc, apr_pool_t *p, apr_pool_t *pt, - server_rec *s) -{ - for ( ; s ; s = s->next) { - if (!open_log(s, p)) { - return HTTP_INTERNAL_SERVER_ERROR; - } - } - - return OK; -} - - -/* e is the first _invalid_ location in q - N.B. returns the terminating NUL. - */ -static char *log_escape(char *q, const char *e, const char *p) -{ - for ( ; *p ; ++p) { - ap_assert(q < e); - if (test_char_table[*(unsigned char *)p]&T_ESCAPE_FORENSIC) { - ap_assert(q+2 < e); - *q++ = '%'; - sprintf(q, "%02x", *(unsigned char *)p); - q += 2; - } - else - *q++ = *p; - } - ap_assert(q < e); - *q = '\0'; - - return q; -} - -typedef struct hlog { - char *log; - char *pos; - char *end; - apr_pool_t *p; - apr_size_t count; -} hlog; - -static int count_string(const char *p) -{ - int n; - - for (n = 0 ; *p ; ++p, ++n) - if (test_char_table[*(unsigned char *)p]&T_ESCAPE_FORENSIC) - n += 2; - return n; -} - -static int count_headers(void *h_, const char *key, const char *value) -{ - hlog *h = h_; - - h->count += count_string(key)+count_string(value)+2; - - return 1; -} - -static int log_headers(void *h_, const char *key, const char *value) -{ - hlog *h = h_; - - /* note that we don't have to check h->pos here, coz its been done - for us by log_escape */ - *h->pos++ = '|'; - h->pos = log_escape(h->pos, h->end, key); - *h->pos++ = ':'; - h->pos = log_escape(h->pos, h->end, value); - - return 1; -} - -static int log_before(request_rec *r) -{ - fcfg *cfg = ap_get_module_config(r->server->module_config, - &log_forensic_module); - const char *id; - hlog h; - apr_size_t n; - apr_status_t rv; - - if (!cfg->fd || r->prev) { - return DECLINED; - } - - if (!(id = apr_table_get(r->subprocess_env, "UNIQUE_ID"))) { - /* we make the assumption that we can't go through all the PIDs in - under 1 second */ - ap_log_error(APLOG_MARK, APLOG_ERR, 0, r->server, - "mod_log_forensic: mod_unique_id must also be active"); - return DECLINED; - } - ap_set_module_config(r->request_config, &log_forensic_module, (char *)id); - - h.p = r->pool; - h.count = 0; - - apr_table_do(count_headers, &h, r->headers_in, NULL); - - h.count += 1+strlen(id)+1+count_string(r->the_request)+1+1; - h.log = apr_palloc(r->pool, h.count); - h.pos = h.log; - h.end = h.log+h.count; - - *h.pos++ = '+'; - strcpy(h.pos, id); - h.pos += strlen(h.pos); - *h.pos++ = '|'; - h.pos = log_escape(h.pos, h.end, r->the_request); - - apr_table_do(log_headers, &h, r->headers_in, NULL); - - ap_assert(h.pos < h.end); - *h.pos++ = '\n'; - - n = h.count-1; - rv = apr_file_write(cfg->fd, h.log, &n); - ap_assert(rv == APR_SUCCESS && n == h.count-1); - - apr_table_setn(r->notes, "forensic-id", id); - - return OK; -} - -static int log_after(request_rec *r) -{ - fcfg *cfg = ap_get_module_config(r->server->module_config, - &log_forensic_module); - const char *id = ap_get_module_config(r->request_config, - &log_forensic_module); - char *s; - apr_size_t l, n; - apr_status_t rv; - - if (!cfg->fd) { - return DECLINED; - } - - s = apr_pstrcat(r->pool, "-", id, "\n", NULL); - l = n = strlen(s); - rv = apr_file_write(cfg->fd, s, &n); - ap_assert(rv == APR_SUCCESS && n == l); - - return OK; -} - -static const char *set_forensic_log(cmd_parms *cmd, void *dummy, const char *fn) -{ - fcfg *cfg = ap_get_module_config(cmd->server->module_config, - &log_forensic_module); - - cfg->logname = fn; - return NULL; -} - -static const command_rec forensic_log_cmds[] = -{ - AP_INIT_TAKE1("ForensicLog", set_forensic_log, NULL, RSRC_CONF, - "the filename of the forensic log"), - { NULL } -}; - -static void register_hooks(apr_pool_t *p) -{ - static const char * const pre[] = { "mod_unique_id.c", NULL }; - - ap_hook_open_logs(log_init,NULL,NULL,APR_HOOK_MIDDLE); - ap_hook_post_read_request(log_before,pre,NULL,APR_HOOK_REALLY_FIRST); - ap_hook_log_transaction(log_after,NULL,NULL,APR_HOOK_REALLY_LAST); -} - -module AP_MODULE_DECLARE_DATA log_forensic_module = -{ - STANDARD20_MODULE_STUFF, - NULL, /* create per-dir config */ - NULL, /* merge per-dir config */ - make_forensic_log_scfg, /* server config */ - merge_forensic_log_scfg, /* merge server config */ - forensic_log_cmds, /* command apr_table_t */ - register_hooks /* register hooks */ -}; 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