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Diffstat (limited to 'APACHE_1_3_42/src/os/netware/mod_log_nw.c')
| -rw-r--r-- | APACHE_1_3_42/src/os/netware/mod_log_nw.c | 1256 |
1 files changed, 1256 insertions, 0 deletions
diff --git a/APACHE_1_3_42/src/os/netware/mod_log_nw.c b/APACHE_1_3_42/src/os/netware/mod_log_nw.c new file mode 100644 index 0000000000..b0e900418e --- /dev/null +++ b/APACHE_1_3_42/src/os/netware/mod_log_nw.c @@ -0,0 +1,1256 @@ +/* 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. + */ + +/* + * Modified by djm@va.pubnix.com: + * If no TransferLog is given explicitly, decline to log. + * + * This is module implements the TransferLog directive (same as the + * common log module), and additional directives, LogFormat and CustomLog. + * + * + * Syntax: + * + * TransferLog fn Logs transfers to fn in standard log format, unless + * a custom format is set with LogFormat + * LogFormat format Set a log format from TransferLog files + * CustomLog fn format + * Log to file fn with format given by the format + * argument + * + * CookieLog fn For backwards compatability with old Cookie + * logging module - now deprecated. + * + * There can be any number of TransferLog and CustomLog + * commands. Each request will be logged to _ALL_ the + * named files, in the appropriate format. + * + * If no TransferLog or CustomLog directive appears in a VirtualHost, + * the request will be logged to the log file(s) defined outside + * the virtual host section. If a TransferLog or CustomLog directive + * appears in the VirtualHost section, the log files defined outside + * the VirtualHost will _not_ be used. This makes this module compatable + * with the CLF and config log modules, where the use of TransferLog + * inside the VirtualHost section overrides its use outside. + * + * Examples: + * + * TransferLog logs/access_log + * <VirtualHost> + * LogFormat "... custom format ..." + * TransferLog log/virtual_only + * CustomLog log/virtual_useragents "%t %{user-agent}i" + * </VirtualHost> + * + * This will log using CLF to access_log any requests handled by the + * main server, while any requests to the virtual host will be logged + * with the "... custom format..." to virtual_only _AND_ using + * the custom user-agent log to virtual_useragents. + * + * Note that the NCSA referer and user-agent logs are easily added with + * CustomLog: + * CustomLog logs/referer "%{referer}i -> %U" + * CustomLog logs/agent "%{user-agent}i" + * + * RefererIgnore functionality can be obtained with conditional + * logging (SetEnvIf and CustomLog ... env=!VAR). + * + * But using this method allows much easier modification of the + * log format, e.g. to log hosts along with UA: + * CustomLog logs/referer "%{referer}i %U %h" + * + * The argument to LogFormat and CustomLog is a string, which can include + * literal characters copied into the log files, and '%' directives as + * follows: + * + * %...B: bytes sent, excluding HTTP headers. + * %...b: bytes sent, excluding HTTP headers in CLF format, i.e. a '-' + * when no bytes where sent (rather than a '0'. + * %...c: Status of the connection. + * 'X' = connection aborted before the response completed. + * '+' = connection may be kept alive after the response is sent. + * '-' = connection will be closed after the response is sent. + * %...{FOOBAR}e: The contents of the environment variable FOOBAR + * %...f: filename + * %...h: remote host + * %...a: remote IP-address + * %...A: local IP-address + * %...{Foobar}i: The contents of Foobar: header line(s) in the request + * sent to the client. + * %...l: remote logname (from identd, if supplied) + * %...{Foobar}n: The contents of note "Foobar" from another module. + * %...{Foobar}o: The contents of Foobar: header line(s) in the reply. + * %...p: the port the request was served to + * %...P: the process ID of the child that serviced the request. + * %...r: first line of request + * %...s: status. For requests that got internally redirected, this + * is status of the *original* request --- %...>s for the last. + * %...t: time, in common log format time format + * %...{format}t: The time, in the form given by format, which should + * be in strftime(3) format. + * %...T: the time taken to serve the request, in seconds. + * %...u: remote user (from auth; may be bogus if return status (%s) is 401) + * %...U: the URL path requested. + * %...v: the configured name of the server (i.e. which virtual host?) + * %...V: the server name according to the UseCanonicalName setting + * %...m: the request method + * %...H: the request protocol + * %...q: the query string prepended by "?", or empty if no query string + * + * The '...' can be nothing at all (e.g. "%h %u %r %s %b"), or it can + * indicate conditions for inclusion of the item (which will cause it + * to be replaced with '-' if the condition is not met). Note that + * there is no escaping performed on the strings from %r, %...i and + * %...o; some with long memories may remember that I thought this was + * a bad idea, once upon a time, and I'm still not comfortable with + * it, but it is difficult to see how to "do the right thing" with all + * of '%..i', unless we URL-escape everything and break with CLF. + * + * The forms of condition are a list of HTTP status codes, which may + * or may not be preceded by '!'. Thus, '%400,501{User-agent}i' logs + * User-agent: on 400 errors and 501 errors (Bad Request, Not + * Implemented) only; '%!200,304,302{Referer}i' logs Referer: on all + * requests which did *not* return some sort of normal status. + * + * The default LogFormat reproduces CLF; see below. + * + * The way this is supposed to work with virtual hosts is as follows: + * a virtual host can have its own LogFormat, or its own TransferLog. + * If it doesn't have its own LogFormat, it inherits from the main + * server. If it doesn't have its own TransferLog, it writes to the + * same descriptor (meaning the same process for "| ..."). + * + * --- rst */ + +#define DEFAULT_LOG_FORMAT "%h %l %u %t \"%r\" %>s %b" + +#include "httpd.h" +#include "http_config.h" +#include "http_core.h" /* For REMOTE_NAME */ +#include "http_log.h" +#include <limits.h> + +module MODULE_VAR_EXPORT config_log_module; + +static int xfer_flags = (O_WRONLY | O_APPEND | O_CREAT); +#if defined(OS2) || defined(WIN32) || defined(NETWARE) +/* OS/2 dosen't support users and groups */ +static mode_t xfer_mode = (S_IREAD | S_IWRITE); +#else +static mode_t xfer_mode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); +#endif + +/* POSIX.1 defines PIPE_BUF as the maximum number of bytes that is + * guaranteed to be atomic when writing a pipe. And PIPE_BUF >= 512 + * is guaranteed. So we'll just guess 512 in the event the system + * doesn't have this. Now, for file writes there is actually no limit, + * the entire write is atomic. Whether all systems implement this + * correctly is another question entirely ... so we'll just use PIPE_BUF + * because it's probably a good guess as to what is implemented correctly + * everywhere. + */ +#ifdef PIPE_BUF +#define LOG_BUFSIZE PIPE_BUF +#else +#define LOG_BUFSIZE (512) +#endif + +/* + * multi_log_state is our per-(virtual)-server configuration. We store + * an array of the logs we are going to use, each of type config_log_state. + * If a default log format is given by LogFormat, store in default_format + * (backward compat. with mod_log_config). We also store for each virtual + * server a pointer to the logs specified for the main server, so that if this + * vhost has no logs defined, we can use the main server's logs instead. + * + * So, for the main server, config_logs contains a list of the log files + * and server_config_logs in empty. For a vhost, server_config_logs + * points to the same array as config_logs in the main server, and + * config_logs points to the array of logs defined inside this vhost, + * which might be empty. + */ + +typedef struct { + char *default_format_string; + array_header *default_format; + array_header *config_logs; + array_header *server_config_logs; + table *formats; + int rotatedaily; + int rotateinterval; +} multi_log_state; + +/* + * config_log_state holds the status of a single log file. fname might + * be NULL, which means this module does no logging for this + * request. format might be NULL, in which case the default_format + * from the multi_log_state should be used, or if that is NULL as + * well, use the CLF. log_fd is -1 before the log file is opened and + * set to a valid fd after it is opened. + */ + +typedef struct { + char *fname; + char *format_string; + array_header *format; + int log_fd; + char *condition_var; +#ifdef BUFFERED_LOGS + int outcnt; + char outbuf[LOG_BUFSIZE]; +#endif + time_t time_jump; +} config_log_state; + +/* + * Format items... + * Note that many of these could have ap_sprintfs replaced with static buffers. + */ + +typedef const char *(*item_key_func) (request_rec *, char *); + +typedef struct { + item_key_func func; + char *arg; + int condition_sense; + int want_orig; + array_header *conditions; +} log_format_item; + +static char *format_integer(pool *p, int i) +{ + return ap_psprintf(p, "%d", i); +} + +static char *pfmt(pool *p, int i) +{ + if (i <= 0) { + return "-"; + } + else { + return format_integer(p, i); + } +} + +static const char *constant_item(request_rec *dummy, char *stuff) +{ + return stuff; +} + +static const char *log_remote_host(request_rec *r, char *a) +{ + return ap_get_remote_host(r->connection, r->per_dir_config, + REMOTE_NAME); +} + +static const char *log_remote_address(request_rec *r, char *a) +{ + return r->connection->remote_ip; +} + +static const char *log_local_address(request_rec *r, char *a) +{ + return r->connection->local_ip; +} + +static const char *log_remote_logname(request_rec *r, char *a) +{ + return ap_get_remote_logname(r); +} + +static const char *log_remote_user(request_rec *r, char *a) +{ + char *rvalue = r->connection->user; + + if (rvalue == NULL) { + rvalue = "-"; + } + else if (strlen(rvalue) == 0) { + rvalue = "\"\""; + } + return rvalue; +} + +static const char *log_request_line(request_rec *r, char *a) +{ + /* NOTE: If the original request contained a password, we + * re-write the request line here to contain XXXXXX instead: + * (note the truncation before the protocol string for HTTP/0.9 requests) + * (note also that r->the_request contains the unmodified request) + */ + return (r->parsed_uri.password) ? ap_pstrcat(r->pool, r->method, " ", + ap_unparse_uri_components(r->pool, &r->parsed_uri, 0), + r->assbackwards ? NULL : " ", r->protocol, NULL) + : r->the_request; +} + +static const char *log_request_file(request_rec *r, char *a) +{ + return r->filename; +} +static const char *log_request_uri(request_rec *r, char *a) +{ + return r->uri; +} +static const char *log_request_method(request_rec *r, char *a) +{ + return r->method; +} +static const char *log_request_protocol(request_rec *r, char *a) +{ + return r->protocol; +} +static const char *log_request_query(request_rec *r, char *a) +{ + return (r->args != NULL) ? ap_pstrcat(r->pool, "?", r->args, NULL) + : ""; +} +static const char *log_status(request_rec *r, char *a) +{ + return pfmt(r->pool, r->status); +} + +static const char *clf_log_bytes_sent(request_rec *r, char *a) +{ + if (!r->sent_bodyct) { + return "-"; + } + else { + long int bs; + ap_bgetopt(r->connection->client, BO_BYTECT, &bs); + return ap_psprintf(r->pool, "%ld", bs); + } +} + +static const char *log_bytes_sent(request_rec *r, char *a) +{ + if (!r->sent_bodyct) { + return "0"; + } + else { + long int bs; + ap_bgetopt(r->connection->client, BO_BYTECT, &bs); + return ap_psprintf(r->pool, "%ld", bs); + } +} + + +static const char *log_header_in(request_rec *r, char *a) +{ + return ap_table_get(r->headers_in, a); +} + +static const char *log_header_out(request_rec *r, char *a) +{ + const char *cp = ap_table_get(r->headers_out, a); + if (!strcasecmp(a, "Content-type") && r->content_type) { + cp = ap_field_noparam(r->pool, r->content_type); + } + if (cp) { + return cp; + } + return ap_table_get(r->err_headers_out, a); +} + +static const char *log_note(request_rec *r, char *a) +{ + return ap_table_get(r->notes, a); +} +static const char *log_env_var(request_rec *r, char *a) +{ + return ap_table_get(r->subprocess_env, a); +} + +static const char *log_request_time(request_rec *r, char *a) +{ + int timz; + struct tm *t; + char tstr[MAX_STRING_LEN]; + + t = ap_get_gmtoff(&timz); + + if (a && *a) { /* Custom format */ + strftime(tstr, MAX_STRING_LEN, a, t); + } + else { /* CLF format */ + char sign = (timz < 0 ? '-' : '+'); + + if (timz < 0) { + timz = -timz; + } + ap_snprintf(tstr, sizeof(tstr), "[%02d/%s/%d:%02d:%02d:%02d %c%.2d%.2d]", + t->tm_mday, ap_month_snames[t->tm_mon], t->tm_year+1900, + t->tm_hour, t->tm_min, t->tm_sec, + sign, timz / 60, timz % 60); + } + + return ap_pstrdup(r->pool, tstr); +} + +static const char *log_request_duration(request_rec *r, char *a) +{ + return ap_psprintf(r->pool, "%ld", time(NULL) - r->request_time); +} + +/* These next two routines use the canonical name:port so that log + * parsers don't need to duplicate all the vhost parsing crud. + */ +static const char *log_virtual_host(request_rec *r, char *a) +{ + return r->server->server_hostname; +} + +static const char *log_server_port(request_rec *r, char *a) +{ + return ap_psprintf(r->pool, "%u", + r->server->port ? r->server->port : ap_default_port(r)); +} + +/* This respects the setting of UseCanonicalName so that + * the dynamic mass virtual hosting trick works better. + */ +static const char *log_server_name(request_rec *r, char *a) +{ + return ap_get_server_name(r); +} + +static const char *log_child_pid(request_rec *r, char *a) +{ + return ap_psprintf(r->pool, "%ld", (long) getpid()); +} +static const char *log_connection_status(request_rec *r, char *a) +{ + if (r->connection->aborted) + return "X"; + + if ((r->connection->keepalive) && + ((r->server->keep_alive_max - r->connection->keepalives) > 0)) { + return "+"; + } + + return "-"; +} +/***************************************************************** + * + * Parsing the log format string + */ + +static struct log_item_list { + char ch; + item_key_func func; + int want_orig_default; +} log_item_keys[] = { + + { + 'h', log_remote_host, 0 + }, + { + 'a', log_remote_address, 0 + }, + { + 'A', log_local_address, 0 + }, + { + 'l', log_remote_logname, 0 + }, + { + 'u', log_remote_user, 0 + }, + { + 't', log_request_time, 0 + }, + { + 'T', log_request_duration, 1 + }, + { + 'r', log_request_line, 1 + }, + { + 'f', log_request_file, 0 + }, + { + 'U', log_request_uri, 1 + }, + { + 's', log_status, 1 + }, + { + 'b', clf_log_bytes_sent, 0 + }, + { + 'B', log_bytes_sent, 0 + }, + { + 'i', log_header_in, 0 + }, + { + 'o', log_header_out, 0 + }, + { + 'n', log_note, 0 + }, + { + 'e', log_env_var, 0 + }, + { + 'V', log_server_name, 0 + }, + { + 'v', log_virtual_host, 0 + }, + { + 'p', log_server_port, 0 + }, + { + 'P', log_child_pid, 0 + }, + { + 'H', log_request_protocol, 0 + }, + { + 'm', log_request_method, 0 + }, + { + 'q', log_request_query, 0 + }, + { + 'c', log_connection_status, 0 + }, + { + '\0' + } +}; + +static struct log_item_list *find_log_func(char k) +{ + int i; + + for (i = 0; log_item_keys[i].ch; ++i) + if (k == log_item_keys[i].ch) { + return &log_item_keys[i]; + } + + return NULL; +} + +static char *parse_log_misc_string(pool *p, log_format_item *it, + const char **sa) +{ + const char *s; + char *d; + + it->func = constant_item; + it->conditions = NULL; + + s = *sa; + while (*s && *s != '%') { + s++; + } + /* + * This might allocate a few chars extra if there's a backslash + * escape in the format string. + */ + it->arg = ap_palloc(p, s - *sa + 1); + + d = it->arg; + s = *sa; + while (*s && *s != '%') { + if (*s != '\\') { + *d++ = *s++; + } + else { + s++; + switch (*s) { + case '\\': + *d++ = '\\'; + s++; + break; + case 'n': + *d++ = '\n'; + s++; + break; + case 't': + *d++ = '\t'; + s++; + break; + default: + /* copy verbatim */ + *d++ = '\\'; + /* + * Allow the loop to deal with this *s in the normal + * fashion so that it handles end of string etc. + * properly. + */ + break; + } + } + } + *d = '\0'; + + *sa = s; + return NULL; +} + +static char *parse_log_item(pool *p, log_format_item *it, const char **sa) +{ + const char *s = *sa; + + if (*s != '%') { + return parse_log_misc_string(p, it, sa); + } + + ++s; + it->condition_sense = 0; + it->conditions = NULL; + it->want_orig = -1; + it->arg = ""; /* For safety's sake... */ + + while (*s) { + int i; + struct log_item_list *l; + + switch (*s) { + case '!': + ++s; + it->condition_sense = !it->condition_sense; + break; + + case '<': + ++s; + it->want_orig = 1; + break; + + case '>': + ++s; + it->want_orig = 0; + break; + + case ',': + ++s; + break; + + case '{': + ++s; + it->arg = ap_getword(p, &s, '}'); + break; + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + i = *s - '0'; + while (ap_isdigit(*++s)) { + i = i * 10 + (*s) - '0'; + } + if (!it->conditions) { + it->conditions = ap_make_array(p, 4, sizeof(int)); + } + *(int *) ap_push_array(it->conditions) = i; + break; + + default: + l = find_log_func(*s++); + if (!l) { + char dummy[2]; + + dummy[0] = s[-1]; + dummy[1] = '\0'; + return ap_pstrcat(p, "Unrecognized LogFormat directive %", + dummy, NULL); + } + it->func = l->func; + if (it->want_orig == -1) { + it->want_orig = l->want_orig_default; + } + *sa = s; + return NULL; + } + } + + return "Ran off end of LogFormat parsing args to some directive"; +} + +static array_header *parse_log_string(pool *p, const char *s, const char **err) +{ + array_header *a = ap_make_array(p, 30, sizeof(log_format_item)); + char *res; + + while (*s) { + if ((res = parse_log_item(p, (log_format_item *) ap_push_array(a), &s))) { + *err = res; + return NULL; + } + } + + s = "\n"; + parse_log_item(p, (log_format_item *) ap_push_array(a), &s); + return a; +} + +/***************************************************************** + * + * Actually logging. + */ + +static const char *process_item(request_rec *r, request_rec *orig, + log_format_item *item) +{ + const char *cp; + + /* First, see if we need to process this thing at all... */ + + if (item->conditions && item->conditions->nelts != 0) { + int i; + int *conds = (int *) item->conditions->elts; + int in_list = 0; + + for (i = 0; i < item->conditions->nelts; ++i) { + if (r->status == conds[i]) { + in_list = 1; + break; + } + } + + if ((item->condition_sense && in_list) + || (!item->condition_sense && !in_list)) { + return "-"; + } + } + + /* We do. Do it... */ + + cp = (*item->func) (item->want_orig ? orig : r, item->arg); + return cp ? cp : "-"; +} + +#ifdef BUFFERED_LOGS +static void flush_log(config_log_state *cls) +{ + if (cls->outcnt && cls->log_fd != -1) { + write(cls->log_fd, cls->outbuf, cls->outcnt); + cls->outcnt = 0; + } +} +#endif + +static int config_log_transaction(request_rec *r, config_log_state *cls, + array_header *default_format) +{ + log_format_item *items; + char *str, *s; + const char **strs; + int *strl; + request_rec *orig; + int i; + int len = 0; + array_header *format; + char *envar; + int log_fd; + + multi_log_state *mls = ap_get_module_config(r->server->module_config,&config_log_module); + + if ((mls->rotatedaily || mls->rotateinterval) && + (r->request_time>=cls->time_jump) && + (*cls->fname!='|') && (strcmp(cls->fname,"/dev/null") != 0)) { + char * fname; + struct tm *time_tmp; + + if (mls->rotatedaily) { + time_tmp=localtime(&(r->request_time)); + cls->time_jump=r->request_time+((60-time_tmp->tm_sec)+60*(59-time_tmp->tm_min)+3600*(23-time_tmp->tm_hour)); + } + else + cls->time_jump = r->request_time + (60*mls->rotateinterval); + + fname = ap_pstrcat(r->pool, + ap_server_root_relative(r->pool, cls->fname), + "-", + ap_ht_time(r->pool,r->request_time,"%Y%m%d%H%M",0), + NULL + ); + + if ((log_fd = open(fname, xfer_flags, xfer_mode)) < 0) { + ap_log_error(APLOG_MARK, APLOG_ERR, r->server, + "could not open transfer log file %s.", fname); + } + else { + dup2 (log_fd, cls->log_fd); + close (log_fd); + } + } + + if (cls->fname == NULL) { + return DECLINED; + } + + /* + * See if we've got any conditional envariable-controlled logging decisions + * to make. + */ + if (cls->condition_var != NULL) { + envar = cls->condition_var; + if (*envar != '!') { + if (ap_table_get(r->subprocess_env, envar) == NULL) { + return DECLINED; + } + } + else { + if (ap_table_get(r->subprocess_env, &envar[1]) != NULL) { + return DECLINED; + } + } + } + + format = cls->format ? cls->format : default_format; + + strs = ap_palloc(r->pool, sizeof(char *) * (format->nelts)); + strl = ap_palloc(r->pool, sizeof(int) * (format->nelts)); + items = (log_format_item *) format->elts; + + orig = r; + while (orig->prev) { + orig = orig->prev; + } + while (r->next) { + r = r->next; + } + + for (i = 0; i < format->nelts; ++i) { + strs[i] = process_item(r, orig, &items[i]); + } + + for (i = 0; i < format->nelts; ++i) { + len += strl[i] = strlen(strs[i]); + } + +#ifdef BUFFERED_LOGS + if (len + cls->outcnt > LOG_BUFSIZE) { + flush_log(cls); + } + if (len >= LOG_BUFSIZE) { + str = ap_palloc(r->pool, len + 1); + for (i = 0, s = str; i < format->nelts; ++i) { + memcpy(s, strs[i], strl[i]); + s += strl[i]; + } + write(cls->log_fd, str, len); + } + else { + for (i = 0, s = &cls->outbuf[cls->outcnt]; i < format->nelts; ++i) { + memcpy(s, strs[i], strl[i]); + s += strl[i]; + } + cls->outcnt += len; + } +#else + str = ap_palloc(r->pool, len + 1); + + for (i = 0, s = str; i < format->nelts; ++i) { + memcpy(s, strs[i], strl[i]); + s += strl[i]; + } + + write(cls->log_fd, str, len); +#endif + + return OK; +} + +static int multi_log_transaction(request_rec *r) +{ + multi_log_state *mls = ap_get_module_config(r->server->module_config, + &config_log_module); + config_log_state *clsarray; + int i; + + /* + * Log this transaction.. + */ + if (mls->config_logs->nelts) { + clsarray = (config_log_state *) mls->config_logs->elts; + for (i = 0; i < mls->config_logs->nelts; ++i) { + config_log_state *cls = &clsarray[i]; + + config_log_transaction(r, cls, mls->default_format); + } + } + else if (mls->server_config_logs) { + clsarray = (config_log_state *) mls->server_config_logs->elts; + for (i = 0; i < mls->server_config_logs->nelts; ++i) { + config_log_state *cls = &clsarray[i]; + + config_log_transaction(r, cls, mls->default_format); + } + } + + return OK; +} + +/***************************************************************** + * + * Module glue... + */ + +static void *make_config_log_state(pool *p, server_rec *s) +{ + multi_log_state *mls; + + mls = (multi_log_state *) ap_palloc(p, sizeof(multi_log_state)); + mls->config_logs = ap_make_array(p, 1, sizeof(config_log_state)); + mls->default_format_string = NULL; + mls->default_format = NULL; + mls->server_config_logs = NULL; + mls->formats = ap_make_table(p, 4); + ap_table_setn(mls->formats, "CLF", DEFAULT_LOG_FORMAT); + mls->rotatedaily = 0; + mls->rotateinterval = 0; + + return mls; +} + +/* + * Use the merger to simply add a pointer from the vhost log state + * to the log of logs specified for the non-vhost configuration. Make sure + * vhosts inherit any globally-defined format names. + */ + +static void *merge_config_log_state(pool *p, void *basev, void *addv) +{ + multi_log_state *base = (multi_log_state *) basev; + multi_log_state *add = (multi_log_state *) addv; + + if (add->rotatedaily==0) { + add->rotatedaily=base->rotatedaily; + } + if (add->rotateinterval==0) { + add->rotateinterval=base->rotateinterval; + } + + add->server_config_logs = base->config_logs; + if (!add->default_format) { + add->default_format_string = base->default_format_string; + add->default_format = base->default_format; + } + add->formats = ap_overlay_tables(p, base->formats, add->formats); + + return add; +} + +/* + * Set the default logfile format, or define a nickname for a format string. + */ +static const char *log_format(cmd_parms *cmd, void *dummy, char *fmt, + char *name) +{ + const char *err_string = NULL; + multi_log_state *mls = ap_get_module_config(cmd->server->module_config, + &config_log_module); + + /* + * If we were given two arguments, the second is a name to be given to the + * format. This syntax just defines the nickname - it doesn't actually + * make the format the default. + */ + if (name != NULL) { + parse_log_string(cmd->pool, fmt, &err_string); + if (err_string == NULL) { + ap_table_setn(mls->formats, name, fmt); + } + } + else { + mls->default_format_string = fmt; + mls->default_format = parse_log_string(cmd->pool, fmt, &err_string); + } + return err_string; +} + + +static const char *add_custom_log(cmd_parms *cmd, void *dummy, char *fn, + char *fmt, char *envclause) +{ + const char *err_string = NULL; + multi_log_state *mls = ap_get_module_config(cmd->server->module_config, + &config_log_module); + config_log_state *cls; + + cls = (config_log_state *) ap_push_array(mls->config_logs); + cls->condition_var = NULL; + if (envclause != NULL) { + if (strncasecmp(envclause, "env=", 4) != 0) { + return "error in condition clause"; + } + if ((envclause[4] == '\0') + || ((envclause[4] == '!') && (envclause[5] == '\0'))) { + return "missing environment variable name"; + } + cls->condition_var = ap_pstrdup(cmd->pool, &envclause[4]); + } + + cls->fname = fn; + cls->format_string = fmt; + if (fmt == NULL) { + cls->format = NULL; + } + else { + cls->format = parse_log_string(cmd->pool, fmt, &err_string); + } + cls->log_fd = -1; + + return err_string; +} + +static const char *set_transfer_log(cmd_parms *cmd, void *dummy, char *fn) +{ + return add_custom_log(cmd, dummy, fn, NULL, NULL); +} + +static const char *set_cookie_log(cmd_parms *cmd, void *dummy, char *fn) +{ + return add_custom_log(cmd, dummy, fn, "%{Cookie}n \"%r\" %t", NULL); +} + +static const char *set_rotate_log_daily(cmd_parms *cmd, void *dummy, int arg) +{ + multi_log_state *mls = ap_get_module_config(cmd->server->module_config, + &config_log_module); + + mls->rotatedaily = arg; + if (mls->rotatedaily) + mls->rotateinterval = 0; + return NULL; +} + +static const char *set_rotate_log_interval(cmd_parms *cmd, void *dummy, char *arg) +{ + multi_log_state *mls = ap_get_module_config(cmd->server->module_config, + &config_log_module); + int interval = 0; + + if (arg) + interval = atoi(arg); + + if (interval < 0) + return NULL; + + mls->rotatedaily = 0; + mls->rotateinterval = interval; + return NULL; +} + +static const command_rec config_log_cmds[] = +{ + {"CustomLog", add_custom_log, NULL, RSRC_CONF, TAKE23, + "a file name, a custom log format string or format name, " + "and an optional \"env=\" clause (see docs)"}, + {"TransferLog", set_transfer_log, NULL, RSRC_CONF, TAKE1, + "the filename of the access log"}, + {"LogFormat", log_format, NULL, RSRC_CONF, TAKE12, + "a log format string (see docs) and an optional format name"}, + {"CookieLog", set_cookie_log, NULL, RSRC_CONF, TAKE1, + "the filename of the cookie log"}, + {"LogRotateDaily", set_rotate_log_daily, NULL, RSRC_CONF, FLAG, + "rotate logs daily (On:Off)"}, + {"LogRotateInterval", set_rotate_log_interval, NULL, RSRC_CONF, TAKE1, + "rotate logs every NNN minutes"}, + {NULL} +}; + +static config_log_state *open_config_log(server_rec *s, pool *p, + config_log_state *cls, + array_header *default_format) +{ + if (cls->log_fd > 0) { + return cls; /* virtual config shared w/main server */ + } + + if (cls->fname == NULL) { + return cls; /* Leave it NULL to decline. */ + } + + if (*cls->fname == '|') { + piped_log *pl; + + pl = ap_open_piped_log(p, cls->fname + 1); + if (pl == NULL) { + exit(1); + } + cls->log_fd = ap_piped_log_write_fd(pl); + } + else { + char * fname; + struct tm *time_tmp; + time_t time_now; + multi_log_state *mls = ap_get_module_config(s->module_config,&config_log_module); + + if ((mls->rotatedaily || mls->rotateinterval)&&(*cls->fname!='|')&&(strcmp(cls->fname,"/dev/null") != 0)) { + time_now=time(NULL); + if (mls->rotatedaily) { + time_tmp=localtime(&time_now); + cls->time_jump=time_now+((60-time_tmp->tm_sec)+60*(59-time_tmp->tm_min)+3600*(23-time_tmp->tm_hour)); + } + else + cls->time_jump = time_now + (60*mls->rotateinterval); + fname = ap_pstrcat(p, + ap_server_root_relative(p, cls->fname), + "-", + ap_ht_time(p,time_now,"%Y%m%d%H%M",0), + NULL + ); + } else { + fname = ap_server_root_relative(p, cls->fname); + } + + if ((cls->log_fd = ap_popenf_ex(p, fname, xfer_flags, xfer_mode, 1)) < 0) { + ap_log_error(APLOG_MARK, APLOG_ERR, s, + "could not open transfer log file %s.", fname); + exit(1); + } + } +#ifdef BUFFERED_LOGS + cls->outcnt = 0; +#endif + + return cls; +} + +static config_log_state *open_multi_logs(server_rec *s, pool *p) +{ + int i; + multi_log_state *mls = ap_get_module_config(s->module_config, + &config_log_module); + config_log_state *clsarray; + const char *dummy; + const char *format; + + if (mls->default_format_string) { + format = ap_table_get(mls->formats, mls->default_format_string); + if (format) { + mls->default_format = parse_log_string(p, format, &dummy); + } + } + + if (!mls->default_format) { + mls->default_format = parse_log_string(p, DEFAULT_LOG_FORMAT, &dummy); + } + + if (mls->config_logs->nelts) { + clsarray = (config_log_state *) mls->config_logs->elts; + for (i = 0; i < mls->config_logs->nelts; ++i) { + config_log_state *cls = &clsarray[i]; + + if (cls->format_string) { + format = ap_table_get(mls->formats, cls->format_string); + if (format) { + cls->format = parse_log_string(p, format, &dummy); + } + } + + cls = open_config_log(s, p, cls, mls->default_format); + } + } + else if (mls->server_config_logs) { + clsarray = (config_log_state *) mls->server_config_logs->elts; + for (i = 0; i < mls->server_config_logs->nelts; ++i) { + config_log_state *cls = &clsarray[i]; + + if (cls->format_string) { + format = ap_table_get(mls->formats, cls->format_string); + if (format) { + cls->format = parse_log_string(p, format, &dummy); + } + } + + cls = open_config_log(s, p, cls, mls->default_format); + } + } + + return NULL; +} + +static void init_config_log(server_rec *s, pool *p) +{ + /* First, do "physical" server, which gets default log fd and format + * for the virtual servers, if they don't override... + */ + + open_multi_logs(s, p); + + /* Then, virtual servers */ + + for (s = s->next; s; s = s->next) { + open_multi_logs(s, p); + } +} + +#ifdef BUFFERED_LOGS +static void flush_all_logs(server_rec *s, pool *p) +{ + multi_log_state *mls; + array_header *log_list; + config_log_state *clsarray; + int i; + + for (; s; s = s->next) { + mls = ap_get_module_config(s->module_config, &config_log_module); + log_list = NULL; + if (mls->config_logs->nelts) { + log_list = mls->config_logs; + } + else if (mls->server_config_logs) { + log_list = mls->server_config_logs; + } + if (log_list) { + clsarray = (config_log_state *) log_list->elts; + for (i = 0; i < log_list->nelts; ++i) { + flush_log(&clsarray[i]); + } + } + } +} +#endif + +module MODULE_VAR_EXPORT config_log_module = +{ + STANDARD_MODULE_STUFF, + init_config_log, /* initializer */ + NULL, /* create per-dir config */ + NULL, /* merge per-dir config */ + make_config_log_state, /* server config */ + merge_config_log_state, /* merge server config */ + config_log_cmds, /* command table */ + NULL, /* handlers */ + NULL, /* filename translation */ + NULL, /* check_user_id */ + NULL, /* check auth */ + NULL, /* check access */ + NULL, /* type_checker */ + NULL, /* fixups */ + multi_log_transaction, /* logger */ + NULL, /* header parser */ + NULL, /* child_init */ +#ifdef BUFFERED_LOGS + flush_all_logs, /* child_exit */ +#else + NULL, +#endif + NULL /* post read-request */ +}; 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