From 37a718c72595b7a9b134b1671867a140ac14a5d7 Mon Sep 17 00:00:00 2001 From: selboo Date: Mon, 17 Jan 2022 18:34:40 +0800 Subject: [PATCH] upgrade: dongting_module --- config | 11 + ngx_http_dongting_module.c | 1908 ++++++++++++++++++++++++++++++++++++ 2 files changed, 1919 insertions(+) create mode 100644 config create mode 100644 ngx_http_dongting_module.c diff --git a/config b/config new file mode 100644 index 0000000..78e3681 --- /dev/null +++ b/config @@ -0,0 +1,11 @@ +ngx_addon_name=ngx_http_dongting_module +if test -n "$ngx_module_link"; then + ngx_module_type=HTTP + ngx_module_name=ngx_http_dongting_module + ngx_module_srcs="$ngx_addon_dir/ngx_http_dongting_module.c" + + . auto/module +else + HTTP_MODULES="$HTTP_MODULES ngx_http_dongting_module" + NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_dongting_module.c" +fi diff --git a/ngx_http_dongting_module.c b/ngx_http_dongting_module.c new file mode 100644 index 0000000..9cb1412 --- /dev/null +++ b/ngx_http_dongting_module.c @@ -0,0 +1,1908 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include +#include +#include + +#if (NGX_ZLIB) +#include +#endif + + +typedef struct ngx_http_log_op_s ngx_http_log_op_t; + +typedef u_char *(*ngx_http_log_op_run_pt) (ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); + +typedef size_t (*ngx_http_log_op_getlen_pt) (ngx_http_request_t *r, + uintptr_t data); + + +struct ngx_http_log_op_s { + size_t len; + ngx_http_log_op_getlen_pt getlen; + ngx_http_log_op_run_pt run; + uintptr_t data; +}; + + +typedef struct { + ngx_str_t name; + ngx_array_t *flushes; + ngx_array_t *ops; /* array of ngx_http_log_op_t */ +} ngx_http_log_fmt_t; + + +typedef struct { + ngx_array_t formats; /* array of ngx_http_log_fmt_t */ + ngx_uint_t combined_used; /* unsigned combined_used:1 */ +} ngx_http_log_main_conf_t; + + +typedef struct { + u_char *start; + u_char *pos; + u_char *last; + + ngx_event_t *event; + ngx_msec_t flush; + ngx_int_t gzip; +} ngx_http_log_buf_t; + + +typedef struct { + ngx_array_t *lengths; + ngx_array_t *values; +} ngx_http_log_script_t; + + +typedef struct { + ngx_open_file_t *file; + ngx_http_log_script_t *script; + time_t disk_full_time; + time_t error_log_time; + ngx_syslog_peer_t *syslog_peer; + ngx_http_log_fmt_t *format; + ngx_http_complex_value_t *filter; +} ngx_http_log_t; + + +typedef struct { + ngx_array_t *logs; /* array of ngx_http_log_t */ + + ngx_open_file_cache_t *open_file_cache; + time_t open_file_cache_valid; + ngx_uint_t open_file_cache_min_uses; + + ngx_uint_t off; /* unsigned off:1 */ +} ngx_http_log_loc_conf_t; + + +typedef struct { + ngx_str_t name; + size_t len; + ngx_http_log_op_run_pt run; +} ngx_http_log_var_t; + + +#define NGX_HTTP_LOG_ESCAPE_DEFAULT 0 +#define NGX_HTTP_LOG_ESCAPE_JSON 1 +#define NGX_HTTP_LOG_ESCAPE_NONE 2 + + +static void ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, + u_char *buf, size_t len); +static ssize_t ngx_http_log_script_write(ngx_http_request_t *r, + ngx_http_log_script_t *script, u_char **name, u_char *buf, size_t len); + +#if (NGX_ZLIB) +static ssize_t ngx_http_log_gzip(ngx_fd_t fd, u_char *buf, size_t len, + ngx_int_t level, ngx_log_t *log); + +static void *ngx_http_log_gzip_alloc(void *opaque, u_int items, u_int size); +static void ngx_http_log_gzip_free(void *opaque, void *address); +#endif + +static void ngx_http_log_flush(ngx_open_file_t *file, ngx_log_t *log); +static void ngx_http_log_flush_handler(ngx_event_t *ev); + +static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_iso8601(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_status(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static u_char *ngx_http_log_body_bytes_sent(ngx_http_request_t *r, + u_char *buf, ngx_http_log_op_t *op); +static u_char *ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); + +static ngx_int_t ngx_http_log_variable_compile(ngx_conf_t *cf, + ngx_http_log_op_t *op, ngx_str_t *value, ngx_uint_t escape); +static size_t ngx_http_log_variable_getlen(ngx_http_request_t *r, + uintptr_t data); +static u_char *ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static uintptr_t ngx_http_log_escape(u_char *dst, u_char *src, size_t size); +static size_t ngx_http_log_json_variable_getlen(ngx_http_request_t *r, + uintptr_t data); +static u_char *ngx_http_log_json_variable(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op); +static size_t ngx_http_log_unescaped_variable_getlen(ngx_http_request_t *r, + uintptr_t data); +static u_char *ngx_http_log_unescaped_variable(ngx_http_request_t *r, + u_char *buf, ngx_http_log_op_t *op); + + +static void *ngx_http_log_create_main_conf(ngx_conf_t *cf); +static void *ngx_http_log_create_loc_conf(ngx_conf_t *cf); +static char *ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, + void *child); +static char *ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, + void *conf); +static char *ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, + void *conf); +static char *ngx_http_log_compile_format(ngx_conf_t *cf, + ngx_array_t *flushes, ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s); +static char *ngx_http_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, + void *conf); +static ngx_int_t ngx_http_log_init(ngx_conf_t *cf); + + +static ngx_command_t ngx_http_log_commands[] = { + + { ngx_string("dongting_format"), + NGX_HTTP_MAIN_CONF|NGX_CONF_2MORE, + ngx_http_log_set_format, + NGX_HTTP_MAIN_CONF_OFFSET, + 0, + NULL }, + + { ngx_string("dongting_log"), + NGX_HTTP_MAIN_CONF|NGX_CONF_1MORE, + ngx_http_log_set_log, + NGX_HTTP_LOC_CONF_OFFSET, + 0, + NULL }, + + { ngx_string("dongting_log_file_cache"), + NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, + ngx_http_log_open_file_cache, + NGX_HTTP_LOC_CONF_OFFSET, + 0, + NULL }, + + ngx_null_command +}; + + +static ngx_http_module_t ngx_http_dongting_module_ctx = { + NULL, /* preconfiguration */ + ngx_http_log_init, /* postconfiguration */ + + ngx_http_log_create_main_conf, /* create main configuration */ + NULL, /* init main configuration */ + + NULL, /* create server configuration */ + NULL, /* merge server configuration */ + + ngx_http_log_create_loc_conf, /* create location configuration */ + ngx_http_log_merge_loc_conf /* merge location configuration */ +}; + + +ngx_module_t ngx_http_dongting_module = { + NGX_MODULE_V1, + &ngx_http_dongting_module_ctx, /* module context */ + ngx_http_log_commands, /* module directives */ + NGX_HTTP_MODULE, /* module type */ + NULL, /* init master */ + NULL, /* init module */ + NULL, /* init process */ + NULL, /* init thread */ + NULL, /* exit thread */ + NULL, /* exit process */ + NULL, /* exit master */ + NGX_MODULE_V1_PADDING +}; + + +static ngx_str_t ngx_http_access_log = ngx_string(NGX_HTTP_LOG_PATH); + + +static ngx_str_t ngx_http_combined_fmt = + ngx_string("$remote_addr - $remote_user [$time_local] " + "\"$request\" $status $body_bytes_sent " + "\"$http_referer\" \"$http_user_agent\""); + + +static ngx_http_log_var_t ngx_http_log_vars[] = { + { ngx_string("pipe"), 1, ngx_http_log_pipe }, + { ngx_string("time_local"), sizeof("28/Sep/1970:12:00:00 +0600") - 1, + ngx_http_log_time }, + { ngx_string("time_iso8601"), sizeof("1970-09-28T12:00:00+06:00") - 1, + ngx_http_log_iso8601 }, + { ngx_string("msec"), NGX_TIME_T_LEN + 4, ngx_http_log_msec }, + { ngx_string("request_time"), NGX_TIME_T_LEN + 4, + ngx_http_log_request_time }, + { ngx_string("status"), NGX_INT_T_LEN, ngx_http_log_status }, + { ngx_string("bytes_sent"), NGX_OFF_T_LEN, ngx_http_log_bytes_sent }, + { ngx_string("body_bytes_sent"), NGX_OFF_T_LEN, + ngx_http_log_body_bytes_sent }, + { ngx_string("request_length"), NGX_SIZE_T_LEN, + ngx_http_log_request_length }, + + { ngx_null_string, 0, NULL } +}; + + +static ngx_int_t +ngx_http_log_handler(ngx_http_request_t *r) +{ + u_char *line, *p; + size_t len, size; + ssize_t n; + ngx_str_t val; + ngx_uint_t i, l; + ngx_http_log_t *log; + ngx_http_log_op_t *op; + ngx_http_log_buf_t *buffer; + ngx_http_log_loc_conf_t *lcf; + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http log handler"); + + lcf = ngx_http_get_module_loc_conf(r, ngx_http_dongting_module); + + if (lcf->off) { + return NGX_OK; + } + + log = lcf->logs->elts; + for (l = 0; l < lcf->logs->nelts; l++) { + + if (log[l].filter) { + if (ngx_http_complex_value(r, log[l].filter, &val) != NGX_OK) { + return NGX_ERROR; + } + + if (val.len == 0 || (val.len == 1 && val.data[0] == '0')) { + continue; + } + } + + if (ngx_time() == log[l].disk_full_time) { + + /* + * on FreeBSD writing to a full filesystem with enabled softupdates + * may block process for much longer time than writing to non-full + * filesystem, so we skip writing to a log for one second + */ + + continue; + } + + ngx_http_script_flush_no_cacheable_variables(r, log[l].format->flushes); + + len = 0; + op = log[l].format->ops->elts; + for (i = 0; i < log[l].format->ops->nelts; i++) { + if (op[i].len == 0) { + len += op[i].getlen(r, op[i].data); + + } else { + len += op[i].len; + } + } + + if (log[l].syslog_peer) { + + /* length of syslog's PRI and HEADER message parts */ + len += sizeof("<255>Jan 01 00:00:00 ") - 1 + + ngx_cycle->hostname.len + 1 + + log[l].syslog_peer->tag.len + 2; + + goto alloc_line; + } + + len += NGX_LINEFEED_SIZE; + + buffer = log[l].file ? log[l].file->data : NULL; + + if (buffer) { + + if (len > (size_t) (buffer->last - buffer->pos)) { + + ngx_http_log_write(r, &log[l], buffer->start, + buffer->pos - buffer->start); + + buffer->pos = buffer->start; + } + + if (len <= (size_t) (buffer->last - buffer->pos)) { + + p = buffer->pos; + + if (buffer->event && p == buffer->start) { + ngx_add_timer(buffer->event, buffer->flush); + } + + for (i = 0; i < log[l].format->ops->nelts; i++) { + p = op[i].run(r, p, &op[i]); + } + + ngx_linefeed(p); + + buffer->pos = p; + + continue; + } + + if (buffer->event && buffer->event->timer_set) { + ngx_del_timer(buffer->event); + } + } + + alloc_line: + + line = ngx_pnalloc(r->pool, len); + if (line == NULL) { + return NGX_ERROR; + } + + p = line; + + if (log[l].syslog_peer) { + p = ngx_syslog_add_header(log[l].syslog_peer, line); + } + + for (i = 0; i < log[l].format->ops->nelts; i++) { + p = op[i].run(r, p, &op[i]); + } + + if (log[l].syslog_peer) { + + size = p - line; + + n = ngx_syslog_send(log[l].syslog_peer, line, size); + + if (n < 0) { + ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, + "send() to syslog failed"); + + } else if ((size_t) n != size) { + ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, + "send() to syslog has written only %z of %uz", + n, size); + } + + continue; + } + + ngx_linefeed(p); + + ngx_http_log_write(r, &log[l], line, p - line); + } + + return NGX_OK; +} + + +static void +ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf, + size_t len) +{ + u_char *name; + time_t now; + ssize_t n; + ngx_err_t err; +#if (NGX_ZLIB) + ngx_http_log_buf_t *buffer; +#endif + + if (log->script == NULL) { + name = log->file->name.data; + +#if (NGX_ZLIB) + buffer = log->file->data; + + if (buffer && buffer->gzip) { + n = ngx_http_log_gzip(log->file->fd, buf, len, buffer->gzip, + r->connection->log); + } else { + n = ngx_write_fd(log->file->fd, buf, len); + } +#else + n = ngx_write_fd(log->file->fd, buf, len); +#endif + + } else { + name = NULL; + n = ngx_http_log_script_write(r, log->script, &name, buf, len); + } + + if (n == (ssize_t) len) { + return; + } + + now = ngx_time(); + + if (n == -1) { + err = ngx_errno; + + if (err == NGX_ENOSPC) { + log->disk_full_time = now; + } + + if (now - log->error_log_time > 59) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, err, + ngx_write_fd_n " to \"%s\" failed", name); + + log->error_log_time = now; + } + + return; + } + + if (now - log->error_log_time > 59) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, + ngx_write_fd_n " to \"%s\" was incomplete: %z of %uz", + name, n, len); + + log->error_log_time = now; + } +} + + +static ssize_t +ngx_http_log_script_write(ngx_http_request_t *r, ngx_http_log_script_t *script, + u_char **name, u_char *buf, size_t len) +{ + size_t root; + ssize_t n; + ngx_str_t log, path; + ngx_open_file_info_t of; + ngx_http_log_loc_conf_t *llcf; + ngx_http_core_loc_conf_t *clcf; + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (!r->root_tested) { + + /* test root directory existence */ + + if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { + /* simulate successful logging */ + return len; + } + + path.data[root] = '\0'; + + ngx_memzero(&of, sizeof(ngx_open_file_info_t)); + + of.valid = clcf->open_file_cache_valid; + of.min_uses = clcf->open_file_cache_min_uses; + of.test_dir = 1; + of.test_only = 1; + of.errors = clcf->open_file_cache_errors; + of.events = clcf->open_file_cache_events; + + if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { + /* simulate successful logging */ + return len; + } + + if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) + != NGX_OK) + { + if (of.err == 0) { + /* simulate successful logging */ + return len; + } + + ngx_log_error(NGX_LOG_ERR, r->connection->log, of.err, + "testing \"%s\" existence failed", path.data); + + /* simulate successful logging */ + return len; + } + + if (!of.is_dir) { + ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ENOTDIR, + "testing \"%s\" existence failed", path.data); + + /* simulate successful logging */ + return len; + } + } + + if (ngx_http_script_run(r, &log, script->lengths->elts, 1, + script->values->elts) + == NULL) + { + /* simulate successful logging */ + return len; + } + + log.data[log.len - 1] = '\0'; + *name = log.data; + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http log \"%s\"", log.data); + + llcf = ngx_http_get_module_loc_conf(r, ngx_http_dongting_module); + + ngx_memzero(&of, sizeof(ngx_open_file_info_t)); + + of.log = 1; + of.valid = llcf->open_file_cache_valid; + of.min_uses = llcf->open_file_cache_min_uses; + of.directio = NGX_OPEN_FILE_DIRECTIO_OFF; + + if (ngx_http_set_disable_symlinks(r, clcf, &log, &of) != NGX_OK) { + /* simulate successful logging */ + return len; + } + + if (ngx_open_cached_file(llcf->open_file_cache, &log, &of, r->pool) + != NGX_OK) + { + if (of.err == 0) { + /* simulate successful logging */ + return len; + } + + ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, + "%s \"%s\" failed", of.failed, log.data); + /* simulate successful logging */ + return len; + } + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http log #%d", of.fd); + + n = ngx_write_fd(of.fd, buf, len); + + return n; +} + + +#if (NGX_ZLIB) + +static ssize_t +ngx_http_log_gzip(ngx_fd_t fd, u_char *buf, size_t len, ngx_int_t level, + ngx_log_t *log) +{ + int rc, wbits, memlevel; + u_char *out; + size_t size; + ssize_t n; + z_stream zstream; + ngx_err_t err; + ngx_pool_t *pool; + + wbits = MAX_WBITS; + memlevel = MAX_MEM_LEVEL - 1; + + while ((ssize_t) len < ((1 << (wbits - 1)) - 262)) { + wbits--; + memlevel--; + } + + /* + * This is a formula from deflateBound() for conservative upper bound of + * compressed data plus 18 bytes of gzip wrapper. + */ + + size = len + ((len + 7) >> 3) + ((len + 63) >> 6) + 5 + 18; + + ngx_memzero(&zstream, sizeof(z_stream)); + + pool = ngx_create_pool(256, log); + if (pool == NULL) { + /* simulate successful logging */ + return len; + } + + pool->log = log; + + zstream.zalloc = ngx_http_log_gzip_alloc; + zstream.zfree = ngx_http_log_gzip_free; + zstream.opaque = pool; + + out = ngx_pnalloc(pool, size); + if (out == NULL) { + goto done; + } + + zstream.next_in = buf; + zstream.avail_in = len; + zstream.next_out = out; + zstream.avail_out = size; + + rc = deflateInit2(&zstream, (int) level, Z_DEFLATED, wbits + 16, memlevel, + Z_DEFAULT_STRATEGY); + + if (rc != Z_OK) { + ngx_log_error(NGX_LOG_ALERT, log, 0, "deflateInit2() failed: %d", rc); + goto done; + } + + ngx_log_debug4(NGX_LOG_DEBUG_HTTP, log, 0, + "deflate in: ni:%p no:%p ai:%ud ao:%ud", + zstream.next_in, zstream.next_out, + zstream.avail_in, zstream.avail_out); + + rc = deflate(&zstream, Z_FINISH); + + if (rc != Z_STREAM_END) { + ngx_log_error(NGX_LOG_ALERT, log, 0, + "deflate(Z_FINISH) failed: %d", rc); + goto done; + } + + ngx_log_debug5(NGX_LOG_DEBUG_HTTP, log, 0, + "deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d", + zstream.next_in, zstream.next_out, + zstream.avail_in, zstream.avail_out, + rc); + + size -= zstream.avail_out; + + rc = deflateEnd(&zstream); + + if (rc != Z_OK) { + ngx_log_error(NGX_LOG_ALERT, log, 0, "deflateEnd() failed: %d", rc); + goto done; + } + + n = ngx_write_fd(fd, out, size); + + if (n != (ssize_t) size) { + err = (n == -1) ? ngx_errno : 0; + + ngx_destroy_pool(pool); + + ngx_set_errno(err); + return -1; + } + +done: + + ngx_destroy_pool(pool); + + /* simulate successful logging */ + return len; +} + + +static void * +ngx_http_log_gzip_alloc(void *opaque, u_int items, u_int size) +{ + ngx_pool_t *pool = opaque; + + ngx_log_debug2(NGX_LOG_DEBUG_HTTP, pool->log, 0, + "gzip alloc: n:%ud s:%ud", items, size); + + return ngx_palloc(pool, items * size); +} + + +static void +ngx_http_log_gzip_free(void *opaque, void *address) +{ +#if 0 + ngx_pool_t *pool = opaque; + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pool->log, 0, "gzip free: %p", address); +#endif +} + +#endif + + +static void +ngx_http_log_flush(ngx_open_file_t *file, ngx_log_t *log) +{ + size_t len; + ssize_t n; + ngx_http_log_buf_t *buffer; + + buffer = file->data; + + len = buffer->pos - buffer->start; + + if (len == 0) { + return; + } + +#if (NGX_ZLIB) + if (buffer->gzip) { + n = ngx_http_log_gzip(file->fd, buffer->start, len, buffer->gzip, log); + } else { + n = ngx_write_fd(file->fd, buffer->start, len); + } +#else + n = ngx_write_fd(file->fd, buffer->start, len); +#endif + + if (n == -1) { + ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, + ngx_write_fd_n " to \"%s\" failed", + file->name.data); + + } else if ((size_t) n != len) { + ngx_log_error(NGX_LOG_ALERT, log, 0, + ngx_write_fd_n " to \"%s\" was incomplete: %z of %uz", + file->name.data, n, len); + } + + buffer->pos = buffer->start; + + if (buffer->event && buffer->event->timer_set) { + ngx_del_timer(buffer->event); + } +} + + +static void +ngx_http_log_flush_handler(ngx_event_t *ev) +{ + ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, + "http log buffer flush handler"); + + ngx_http_log_flush(ev->data, ev->log); +} + + +static u_char * +ngx_http_log_copy_short(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + size_t len; + uintptr_t data; + + len = op->len; + data = op->data; + + while (len--) { + *buf++ = (u_char) (data & 0xff); + data >>= 8; + } + + return buf; +} + + +static u_char * +ngx_http_log_copy_long(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + return ngx_cpymem(buf, (u_char *) op->data, op->len); +} + + +static u_char * +ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) +{ + if (r->pipeline) { + *buf = 'p'; + } else { + *buf = '.'; + } + + return buf + 1; +} + + +static u_char * +ngx_http_log_time(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) +{ + return ngx_cpymem(buf, ngx_cached_http_log_time.data, + ngx_cached_http_log_time.len); +} + +static u_char * +ngx_http_log_iso8601(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) +{ + return ngx_cpymem(buf, ngx_cached_http_log_iso8601.data, + ngx_cached_http_log_iso8601.len); +} + +static u_char * +ngx_http_log_msec(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) +{ + ngx_time_t *tp; + + tp = ngx_timeofday(); + + return ngx_sprintf(buf, "%T.%03M", tp->sec, tp->msec); +} + + +static u_char * +ngx_http_log_request_time(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + ngx_time_t *tp; + ngx_msec_int_t ms; + + tp = ngx_timeofday(); + + ms = (ngx_msec_int_t) + ((tp->sec - r->start_sec) * 1000 + (tp->msec - r->start_msec)); + ms = ngx_max(ms, 0); + + return ngx_sprintf(buf, "%T.%03M", (time_t) ms / 1000, ms % 1000); +} + + +static u_char * +ngx_http_log_status(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) +{ + ngx_uint_t status; + + if (r->err_status) { + status = r->err_status; + + } else if (r->headers_out.status) { + status = r->headers_out.status; + + } else if (r->http_version == NGX_HTTP_VERSION_9) { + status = 9; + + } else { + status = 0; + } + + return ngx_sprintf(buf, "%03ui", status); +} + + +static u_char * +ngx_http_log_bytes_sent(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + return ngx_sprintf(buf, "%O", r->connection->sent); +} + + +/* + * although there is a real $body_bytes_sent variable, + * this log operation code function is more optimized for logging + */ + +static u_char * +ngx_http_log_body_bytes_sent(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + off_t length; + + length = r->connection->sent - r->header_size; + + if (length > 0) { + return ngx_sprintf(buf, "%O", length); + } + + *buf = '0'; + + return buf + 1; +} + + +static u_char * +ngx_http_log_request_length(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + return ngx_sprintf(buf, "%O", r->request_length); +} + + +static ngx_int_t +ngx_http_log_variable_compile(ngx_conf_t *cf, ngx_http_log_op_t *op, + ngx_str_t *value, ngx_uint_t escape) +{ + ngx_int_t index; + + index = ngx_http_get_variable_index(cf, value); + if (index == NGX_ERROR) { + return NGX_ERROR; + } + + op->len = 0; + + switch (escape) { + case NGX_HTTP_LOG_ESCAPE_JSON: + op->getlen = ngx_http_log_json_variable_getlen; + op->run = ngx_http_log_json_variable; + break; + + case NGX_HTTP_LOG_ESCAPE_NONE: + op->getlen = ngx_http_log_unescaped_variable_getlen; + op->run = ngx_http_log_unescaped_variable; + break; + + default: /* NGX_HTTP_LOG_ESCAPE_DEFAULT */ + op->getlen = ngx_http_log_variable_getlen; + op->run = ngx_http_log_variable; + } + + op->data = index; + + return NGX_OK; +} + + +static size_t +ngx_http_log_variable_getlen(ngx_http_request_t *r, uintptr_t data) +{ + uintptr_t len; + ngx_http_variable_value_t *value; + + value = ngx_http_get_indexed_variable(r, data); + + if (value == NULL || value->not_found) { + return 1; + } + + len = ngx_http_log_escape(NULL, value->data, value->len); + + value->escape = len ? 1 : 0; + + return value->len + len * 3; +} + + +static u_char * +ngx_http_log_variable(ngx_http_request_t *r, u_char *buf, ngx_http_log_op_t *op) +{ + ngx_http_variable_value_t *value; + + value = ngx_http_get_indexed_variable(r, op->data); + + if (value == NULL || value->not_found) { + *buf = '-'; + return buf + 1; + } + + if (value->escape == 0) { + return ngx_cpymem(buf, value->data, value->len); + + } else { + return (u_char *) ngx_http_log_escape(buf, value->data, value->len); + } +} + + +static uintptr_t +ngx_http_log_escape(u_char *dst, u_char *src, size_t size) +{ + ngx_uint_t n; + static u_char hex[] = "0123456789ABCDEF"; + + static uint32_t escape[] = { + 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ + + /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ + 0x00000004, /* 0000 0000 0000 0000 0000 0000 0000 0100 */ + + /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */ + 0x10000000, /* 0001 0000 0000 0000 0000 0000 0000 0000 */ + + /* ~}| {zyx wvut srqp onml kjih gfed cba` */ + 0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */ + + 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ + 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ + 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ + 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ + }; + + + if (dst == NULL) { + + /* find the number of the characters to be escaped */ + + n = 0; + + while (size) { + if (escape[*src >> 5] & (1U << (*src & 0x1f))) { + n++; + } + src++; + size--; + } + + return (uintptr_t) n; + } + + while (size) { + if (escape[*src >> 5] & (1U << (*src & 0x1f))) { + *dst++ = '\\'; + *dst++ = 'x'; + *dst++ = hex[*src >> 4]; + *dst++ = hex[*src & 0xf]; + src++; + + } else { + *dst++ = *src++; + } + size--; + } + + return (uintptr_t) dst; +} + + +static size_t +ngx_http_log_json_variable_getlen(ngx_http_request_t *r, uintptr_t data) +{ + uintptr_t len; + ngx_http_variable_value_t *value; + + value = ngx_http_get_indexed_variable(r, data); + + if (value == NULL || value->not_found) { + return 0; + } + + len = ngx_escape_json(NULL, value->data, value->len); + + value->escape = len ? 1 : 0; + + return value->len + len; +} + + +static u_char * +ngx_http_log_json_variable(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + ngx_http_variable_value_t *value; + + value = ngx_http_get_indexed_variable(r, op->data); + + if (value == NULL || value->not_found) { + return buf; + } + + if (value->escape == 0) { + return ngx_cpymem(buf, value->data, value->len); + + } else { + return (u_char *) ngx_escape_json(buf, value->data, value->len); + } +} + + +static size_t +ngx_http_log_unescaped_variable_getlen(ngx_http_request_t *r, uintptr_t data) +{ + ngx_http_variable_value_t *value; + + value = ngx_http_get_indexed_variable(r, data); + + if (value == NULL || value->not_found) { + return 0; + } + + value->escape = 0; + + return value->len; +} + + +static u_char * +ngx_http_log_unescaped_variable(ngx_http_request_t *r, u_char *buf, + ngx_http_log_op_t *op) +{ + ngx_http_variable_value_t *value; + + value = ngx_http_get_indexed_variable(r, op->data); + + if (value == NULL || value->not_found) { + return buf; + } + + return ngx_cpymem(buf, value->data, value->len); +} + + +static void * +ngx_http_log_create_main_conf(ngx_conf_t *cf) +{ + ngx_http_log_main_conf_t *conf; + + ngx_http_log_fmt_t *fmt; + + conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_main_conf_t)); + if (conf == NULL) { + return NULL; + } + + if (ngx_array_init(&conf->formats, cf->pool, 4, sizeof(ngx_http_log_fmt_t)) + != NGX_OK) + { + return NULL; + } + + fmt = ngx_array_push(&conf->formats); + if (fmt == NULL) { + return NULL; + } + + ngx_str_set(&fmt->name, "combined"); + + fmt->flushes = NULL; + + fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t)); + if (fmt->ops == NULL) { + return NULL; + } + + return conf; +} + + +static void * +ngx_http_log_create_loc_conf(ngx_conf_t *cf) +{ + ngx_http_log_loc_conf_t *conf; + + conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_loc_conf_t)); + if (conf == NULL) { + return NULL; + } + + conf->open_file_cache = NGX_CONF_UNSET_PTR; + + return conf; +} + + +static char * +ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) +{ + ngx_http_log_loc_conf_t *prev = parent; + ngx_http_log_loc_conf_t *conf = child; + + ngx_http_log_t *log; + ngx_http_log_fmt_t *fmt; + ngx_http_log_main_conf_t *lmcf; + + if (conf->open_file_cache == NGX_CONF_UNSET_PTR) { + + conf->open_file_cache = prev->open_file_cache; + conf->open_file_cache_valid = prev->open_file_cache_valid; + conf->open_file_cache_min_uses = prev->open_file_cache_min_uses; + + if (conf->open_file_cache == NGX_CONF_UNSET_PTR) { + conf->open_file_cache = NULL; + } + } + + if (conf->logs || conf->off) { + return NGX_CONF_OK; + } + + conf->logs = prev->logs; + conf->off = prev->off; + + if (conf->logs || conf->off) { + return NGX_CONF_OK; + } + + conf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); + if (conf->logs == NULL) { + return NGX_CONF_ERROR; + } + + log = ngx_array_push(conf->logs); + if (log == NULL) { + return NGX_CONF_ERROR; + } + + ngx_memzero(log, sizeof(ngx_http_log_t)); + + log->file = ngx_conf_open_file(cf->cycle, &ngx_http_access_log); + if (log->file == NULL) { + return NGX_CONF_ERROR; + } + + lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_dongting_module); + fmt = lmcf->formats.elts; + + /* the default "combined" format */ + log->format = &fmt[0]; + lmcf->combined_used = 1; + + return NGX_CONF_OK; +} + + +static char * +ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_http_log_loc_conf_t *llcf = conf; + + ssize_t size; + ngx_int_t gzip; + ngx_uint_t i, n; + ngx_msec_t flush; + ngx_str_t *value, name, s; + ngx_http_log_t *log; + ngx_syslog_peer_t *peer; + ngx_http_log_buf_t *buffer; + ngx_http_log_fmt_t *fmt; + ngx_http_log_main_conf_t *lmcf; + ngx_http_script_compile_t sc; + ngx_http_compile_complex_value_t ccv; + + value = cf->args->elts; + + if (ngx_strcmp(value[1].data, "off") == 0) { + llcf->off = 1; + if (cf->args->nelts == 2) { + return NGX_CONF_OK; + } + + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid parameter \"%V\"", &value[2]); + return NGX_CONF_ERROR; + } + + if (llcf->logs == NULL) { + llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t)); + if (llcf->logs == NULL) { + return NGX_CONF_ERROR; + } + } + + lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_dongting_module); + + log = ngx_array_push(llcf->logs); + if (log == NULL) { + return NGX_CONF_ERROR; + } + + ngx_memzero(log, sizeof(ngx_http_log_t)); + + + if (ngx_strncmp(value[1].data, "syslog:", 7) == 0) { + + peer = ngx_pcalloc(cf->pool, sizeof(ngx_syslog_peer_t)); + if (peer == NULL) { + return NGX_CONF_ERROR; + } + + if (ngx_syslog_process_conf(cf, peer) != NGX_CONF_OK) { + return NGX_CONF_ERROR; + } + + log->syslog_peer = peer; + + goto process_formats; + } + + n = ngx_http_script_variables_count(&value[1]); + + if (n == 0) { + log->file = ngx_conf_open_file(cf->cycle, &value[1]); + if (log->file == NULL) { + return NGX_CONF_ERROR; + } + + } else { + if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) { + return NGX_CONF_ERROR; + } + + log->script = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_script_t)); + if (log->script == NULL) { + return NGX_CONF_ERROR; + } + + ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); + + sc.cf = cf; + sc.source = &value[1]; + sc.lengths = &log->script->lengths; + sc.values = &log->script->values; + sc.variables = n; + sc.complete_lengths = 1; + sc.complete_values = 1; + + if (ngx_http_script_compile(&sc) != NGX_OK) { + return NGX_CONF_ERROR; + } + } + +process_formats: + + if (cf->args->nelts >= 3) { + name = value[2]; + + if (ngx_strcmp(name.data, "combined") == 0) { + lmcf->combined_used = 1; + } + + } else { + ngx_str_set(&name, "combined"); + lmcf->combined_used = 1; + } + + fmt = lmcf->formats.elts; + for (i = 0; i < lmcf->formats.nelts; i++) { + if (fmt[i].name.len == name.len + && ngx_strcasecmp(fmt[i].name.data, name.data) == 0) + { + log->format = &fmt[i]; + break; + } + } + + if (log->format == NULL) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "unknown log format \"%V\"", &name); + return NGX_CONF_ERROR; + } + + size = 0; + flush = 0; + gzip = 0; + + for (i = 3; i < cf->args->nelts; i++) { + + if (ngx_strncmp(value[i].data, "buffer=", 7) == 0) { + s.len = value[i].len - 7; + s.data = value[i].data + 7; + + size = ngx_parse_size(&s); + + if (size == NGX_ERROR || size == 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid buffer size \"%V\"", &s); + return NGX_CONF_ERROR; + } + + continue; + } + + if (ngx_strncmp(value[i].data, "flush=", 6) == 0) { + s.len = value[i].len - 6; + s.data = value[i].data + 6; + + flush = ngx_parse_time(&s, 0); + + if (flush == (ngx_msec_t) NGX_ERROR || flush == 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid flush time \"%V\"", &s); + return NGX_CONF_ERROR; + } + + continue; + } + + if (ngx_strncmp(value[i].data, "gzip", 4) == 0 + && (value[i].len == 4 || value[i].data[4] == '=')) + { +#if (NGX_ZLIB) + if (size == 0) { + size = 64 * 1024; + } + + if (value[i].len == 4) { + gzip = Z_BEST_SPEED; + continue; + } + + s.len = value[i].len - 5; + s.data = value[i].data + 5; + + gzip = ngx_atoi(s.data, s.len); + + if (gzip < 1 || gzip > 9) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid compression level \"%V\"", &s); + return NGX_CONF_ERROR; + } + + continue; + +#else + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "nginx was built without zlib support"); + return NGX_CONF_ERROR; +#endif + } + + if (ngx_strncmp(value[i].data, "if=", 3) == 0) { + s.len = value[i].len - 3; + s.data = value[i].data + 3; + + ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); + + ccv.cf = cf; + ccv.value = &s; + ccv.complex_value = ngx_palloc(cf->pool, + sizeof(ngx_http_complex_value_t)); + if (ccv.complex_value == NULL) { + return NGX_CONF_ERROR; + } + + if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { + return NGX_CONF_ERROR; + } + + log->filter = ccv.complex_value; + + continue; + } + + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid parameter \"%V\"", &value[i]); + return NGX_CONF_ERROR; + } + + if (flush && size == 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "no buffer is defined for access_log \"%V\"", + &value[1]); + return NGX_CONF_ERROR; + } + + if (size) { + + if (log->script) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "buffered logs cannot have variables in name"); + return NGX_CONF_ERROR; + } + + if (log->syslog_peer) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "logs to syslog cannot be buffered"); + return NGX_CONF_ERROR; + } + + if (log->file->data) { + buffer = log->file->data; + + if (buffer->last - buffer->start != size + || buffer->flush != flush + || buffer->gzip != gzip) + { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "access_log \"%V\" already defined " + "with conflicting parameters", + &value[1]); + return NGX_CONF_ERROR; + } + + return NGX_CONF_OK; + } + + buffer = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_buf_t)); + if (buffer == NULL) { + return NGX_CONF_ERROR; + } + + buffer->start = ngx_pnalloc(cf->pool, size); + if (buffer->start == NULL) { + return NGX_CONF_ERROR; + } + + buffer->pos = buffer->start; + buffer->last = buffer->start + size; + + if (flush) { + buffer->event = ngx_pcalloc(cf->pool, sizeof(ngx_event_t)); + if (buffer->event == NULL) { + return NGX_CONF_ERROR; + } + + buffer->event->data = log->file; + buffer->event->handler = ngx_http_log_flush_handler; + buffer->event->log = &cf->cycle->new_log; + buffer->event->cancelable = 1; + + buffer->flush = flush; + } + + buffer->gzip = gzip; + + log->file->flush = ngx_http_log_flush; + log->file->data = buffer; + } + + return NGX_CONF_OK; +} + + +static char * +ngx_http_log_set_format(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_http_log_main_conf_t *lmcf = conf; + + ngx_str_t *value; + ngx_uint_t i; + ngx_http_log_fmt_t *fmt; + + value = cf->args->elts; + + fmt = lmcf->formats.elts; + for (i = 0; i < lmcf->formats.nelts; i++) { + if (fmt[i].name.len == value[1].len + && ngx_strcmp(fmt[i].name.data, value[1].data) == 0) + { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "duplicate \"log_format\" name \"%V\"", + &value[1]); + return NGX_CONF_ERROR; + } + } + + fmt = ngx_array_push(&lmcf->formats); + if (fmt == NULL) { + return NGX_CONF_ERROR; + } + + fmt->name = value[1]; + + fmt->flushes = ngx_array_create(cf->pool, 4, sizeof(ngx_int_t)); + if (fmt->flushes == NULL) { + return NGX_CONF_ERROR; + } + + fmt->ops = ngx_array_create(cf->pool, 16, sizeof(ngx_http_log_op_t)); + if (fmt->ops == NULL) { + return NGX_CONF_ERROR; + } + + return ngx_http_log_compile_format(cf, fmt->flushes, fmt->ops, cf->args, 2); +} + + +static char * +ngx_http_log_compile_format(ngx_conf_t *cf, ngx_array_t *flushes, + ngx_array_t *ops, ngx_array_t *args, ngx_uint_t s) +{ + u_char *data, *p, ch; + size_t i, len; + ngx_str_t *value, var; + ngx_int_t *flush; + ngx_uint_t bracket, escape; + ngx_http_log_op_t *op; + ngx_http_log_var_t *v; + + escape = NGX_HTTP_LOG_ESCAPE_DEFAULT; + value = args->elts; + + if (s < args->nelts && ngx_strncmp(value[s].data, "escape=", 7) == 0) { + data = value[s].data + 7; + + if (ngx_strcmp(data, "json") == 0) { + escape = NGX_HTTP_LOG_ESCAPE_JSON; + + } else if (ngx_strcmp(data, "none") == 0) { + escape = NGX_HTTP_LOG_ESCAPE_NONE; + + } else if (ngx_strcmp(data, "default") != 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "unknown log format escaping \"%s\"", data); + return NGX_CONF_ERROR; + } + + s++; + } + + for ( /* void */ ; s < args->nelts; s++) { + + i = 0; + + while (i < value[s].len) { + + op = ngx_array_push(ops); + if (op == NULL) { + return NGX_CONF_ERROR; + } + + data = &value[s].data[i]; + + if (value[s].data[i] == '$') { + + if (++i == value[s].len) { + goto invalid; + } + + if (value[s].data[i] == '{') { + bracket = 1; + + if (++i == value[s].len) { + goto invalid; + } + + var.data = &value[s].data[i]; + + } else { + bracket = 0; + var.data = &value[s].data[i]; + } + + for (var.len = 0; i < value[s].len; i++, var.len++) { + ch = value[s].data[i]; + + if (ch == '}' && bracket) { + i++; + bracket = 0; + break; + } + + if ((ch >= 'A' && ch <= 'Z') + || (ch >= 'a' && ch <= 'z') + || (ch >= '0' && ch <= '9') + || ch == '_') + { + continue; + } + + break; + } + + if (bracket) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "the closing bracket in \"%V\" " + "variable is missing", &var); + return NGX_CONF_ERROR; + } + + if (var.len == 0) { + goto invalid; + } + + for (v = ngx_http_log_vars; v->name.len; v++) { + + if (v->name.len == var.len + && ngx_strncmp(v->name.data, var.data, var.len) == 0) + { + op->len = v->len; + op->getlen = NULL; + op->run = v->run; + op->data = 0; + + goto found; + } + } + + if (ngx_http_log_variable_compile(cf, op, &var, escape) + != NGX_OK) + { + return NGX_CONF_ERROR; + } + + if (flushes) { + + flush = ngx_array_push(flushes); + if (flush == NULL) { + return NGX_CONF_ERROR; + } + + *flush = op->data; /* variable index */ + } + + found: + + continue; + } + + i++; + + while (i < value[s].len && value[s].data[i] != '$') { + i++; + } + + len = &value[s].data[i] - data; + + if (len) { + + op->len = len; + op->getlen = NULL; + + if (len <= sizeof(uintptr_t)) { + op->run = ngx_http_log_copy_short; + op->data = 0; + + while (len--) { + op->data <<= 8; + op->data |= data[len]; + } + + } else { + op->run = ngx_http_log_copy_long; + + p = ngx_pnalloc(cf->pool, len); + if (p == NULL) { + return NGX_CONF_ERROR; + } + + ngx_memcpy(p, data, len); + op->data = (uintptr_t) p; + } + } + } + } + + return NGX_CONF_OK; + +invalid: + + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%s\"", data); + + return NGX_CONF_ERROR; +} + + +static char * +ngx_http_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_http_log_loc_conf_t *llcf = conf; + + time_t inactive, valid; + ngx_str_t *value, s; + ngx_int_t max, min_uses; + ngx_uint_t i; + + if (llcf->open_file_cache != NGX_CONF_UNSET_PTR) { + return "is duplicate"; + } + + value = cf->args->elts; + + max = 0; + inactive = 10; + valid = 60; + min_uses = 1; + + for (i = 1; i < cf->args->nelts; i++) { + + if (ngx_strncmp(value[i].data, "max=", 4) == 0) { + + max = ngx_atoi(value[i].data + 4, value[i].len - 4); + if (max == NGX_ERROR) { + goto failed; + } + + continue; + } + + if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) { + + s.len = value[i].len - 9; + s.data = value[i].data + 9; + + inactive = ngx_parse_time(&s, 1); + if (inactive == (time_t) NGX_ERROR) { + goto failed; + } + + continue; + } + + if (ngx_strncmp(value[i].data, "min_uses=", 9) == 0) { + + min_uses = ngx_atoi(value[i].data + 9, value[i].len - 9); + if (min_uses == NGX_ERROR) { + goto failed; + } + + continue; + } + + if (ngx_strncmp(value[i].data, "valid=", 6) == 0) { + + s.len = value[i].len - 6; + s.data = value[i].data + 6; + + valid = ngx_parse_time(&s, 1); + if (valid == (time_t) NGX_ERROR) { + goto failed; + } + + continue; + } + + if (ngx_strcmp(value[i].data, "off") == 0) { + + llcf->open_file_cache = NULL; + + continue; + } + + failed: + + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid \"open_log_file_cache\" parameter \"%V\"", + &value[i]); + return NGX_CONF_ERROR; + } + + if (llcf->open_file_cache == NULL) { + return NGX_CONF_OK; + } + + if (max == 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "\"open_log_file_cache\" must have \"max\" parameter"); + return NGX_CONF_ERROR; + } + + llcf->open_file_cache = ngx_open_file_cache_init(cf->pool, max, inactive); + + if (llcf->open_file_cache) { + + llcf->open_file_cache_valid = valid; + llcf->open_file_cache_min_uses = min_uses; + + return NGX_CONF_OK; + } + + return NGX_CONF_ERROR; +} + + +static ngx_int_t +ngx_http_log_init(ngx_conf_t *cf) +{ + ngx_str_t *value; + ngx_array_t a; + ngx_http_handler_pt *h; + ngx_http_log_fmt_t *fmt; + ngx_http_log_main_conf_t *lmcf; + ngx_http_core_main_conf_t *cmcf; + + lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_dongting_module); + + if (lmcf->combined_used) { + if (ngx_array_init(&a, cf->pool, 1, sizeof(ngx_str_t)) != NGX_OK) { + return NGX_ERROR; + } + + value = ngx_array_push(&a); + if (value == NULL) { + return NGX_ERROR; + } + + *value = ngx_http_combined_fmt; + fmt = lmcf->formats.elts; + + if (ngx_http_log_compile_format(cf, NULL, fmt->ops, &a, 0) + != NGX_CONF_OK) + { + return NGX_ERROR; + } + } + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + h = ngx_array_push(&cmcf->phases[NGX_HTTP_LOG_PHASE].handlers); + if (h == NULL) { + return NGX_ERROR; + } + + *h = ngx_http_log_handler; + + return NGX_OK; +}