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Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_ssi_filter_module.c')
-rw-r--r--app/nginx/src/http/modules/ngx_http_ssi_filter_module.c2930
1 files changed, 0 insertions, 2930 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_ssi_filter_module.c b/app/nginx/src/http/modules/ngx_http_ssi_filter_module.c
deleted file mode 100644
index 6fb1fbe..0000000
--- a/app/nginx/src/http/modules/ngx_http_ssi_filter_module.c
+++ /dev/null
@@ -1,2930 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) Nginx, Inc.
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_http.h>
-
-#define NGX_HTTP_SSI_ERROR 1
-
-#define NGX_HTTP_SSI_DATE_LEN 2048
-
-#define NGX_HTTP_SSI_ADD_PREFIX 1
-#define NGX_HTTP_SSI_ADD_ZERO 2
-
-
-typedef struct {
- ngx_flag_t enable;
- ngx_flag_t silent_errors;
- ngx_flag_t ignore_recycled_buffers;
- ngx_flag_t last_modified;
-
- ngx_hash_t types;
-
- size_t min_file_chunk;
- size_t value_len;
-
- ngx_array_t *types_keys;
-} ngx_http_ssi_loc_conf_t;
-
-
-typedef struct {
- ngx_str_t name;
- ngx_uint_t key;
- ngx_str_t value;
-} ngx_http_ssi_var_t;
-
-
-typedef struct {
- ngx_str_t name;
- ngx_chain_t *bufs;
- ngx_uint_t count;
-} ngx_http_ssi_block_t;
-
-
-typedef enum {
- ssi_start_state = 0,
- ssi_tag_state,
- ssi_comment0_state,
- ssi_comment1_state,
- ssi_sharp_state,
- ssi_precommand_state,
- ssi_command_state,
- ssi_preparam_state,
- ssi_param_state,
- ssi_preequal_state,
- ssi_prevalue_state,
- ssi_double_quoted_value_state,
- ssi_quoted_value_state,
- ssi_quoted_symbol_state,
- ssi_postparam_state,
- ssi_comment_end0_state,
- ssi_comment_end1_state,
- ssi_error_state,
- ssi_error_end0_state,
- ssi_error_end1_state
-} ngx_http_ssi_state_e;
-
-
-static ngx_int_t ngx_http_ssi_output(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx);
-static void ngx_http_ssi_buffered(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx);
-static ngx_int_t ngx_http_ssi_parse(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx);
-static ngx_str_t *ngx_http_ssi_get_variable(ngx_http_request_t *r,
- ngx_str_t *name, ngx_uint_t key);
-static ngx_int_t ngx_http_ssi_evaluate_string(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t *text, ngx_uint_t flags);
-static ngx_int_t ngx_http_ssi_regex_match(ngx_http_request_t *r,
- ngx_str_t *pattern, ngx_str_t *str);
-
-static ngx_int_t ngx_http_ssi_include(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_stub_output(ngx_http_request_t *r, void *data,
- ngx_int_t rc);
-static ngx_int_t ngx_http_ssi_set_variable(ngx_http_request_t *r, void *data,
- ngx_int_t rc);
-static ngx_int_t ngx_http_ssi_echo(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_config(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_set(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_if(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_else(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_endif(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_block(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-static ngx_int_t ngx_http_ssi_endblock(ngx_http_request_t *r,
- ngx_http_ssi_ctx_t *ctx, ngx_str_t **params);
-
-static ngx_int_t ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
- ngx_http_variable_value_t *v, uintptr_t gmt);
-
-static ngx_int_t ngx_http_ssi_preconfiguration(ngx_conf_t *cf);
-static void *ngx_http_ssi_create_main_conf(ngx_conf_t *cf);
-static char *ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf);
-static void *ngx_http_ssi_create_loc_conf(ngx_conf_t *cf);
-static char *ngx_http_ssi_merge_loc_conf(ngx_conf_t *cf,
- void *parent, void *child);
-static ngx_int_t ngx_http_ssi_filter_init(ngx_conf_t *cf);
-
-
-static ngx_command_t ngx_http_ssi_filter_commands[] = {
-
- { ngx_string("ssi"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
- |NGX_CONF_FLAG,
- ngx_conf_set_flag_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, enable),
- NULL },
-
- { ngx_string("ssi_silent_errors"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
- ngx_conf_set_flag_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, silent_errors),
- NULL },
-
- { ngx_string("ssi_ignore_recycled_buffers"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
- ngx_conf_set_flag_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, ignore_recycled_buffers),
- NULL },
-
- { ngx_string("ssi_min_file_chunk"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
- ngx_conf_set_size_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, min_file_chunk),
- NULL },
-
- { ngx_string("ssi_value_length"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
- ngx_conf_set_size_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, value_len),
- NULL },
-
- { ngx_string("ssi_types"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
- ngx_http_types_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, types_keys),
- &ngx_http_html_default_types[0] },
-
- { ngx_string("ssi_last_modified"),
- NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
- ngx_conf_set_flag_slot,
- NGX_HTTP_LOC_CONF_OFFSET,
- offsetof(ngx_http_ssi_loc_conf_t, last_modified),
- NULL },
-
- ngx_null_command
-};
-
-
-
-static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
- ngx_http_ssi_preconfiguration, /* preconfiguration */
- ngx_http_ssi_filter_init, /* postconfiguration */
-
- ngx_http_ssi_create_main_conf, /* create main configuration */
- ngx_http_ssi_init_main_conf, /* init main configuration */
-
- NULL, /* create server configuration */
- NULL, /* merge server configuration */
-
- ngx_http_ssi_create_loc_conf, /* create location configuration */
- ngx_http_ssi_merge_loc_conf /* merge location configuration */
-};
-
-
-ngx_module_t ngx_http_ssi_filter_module = {
- NGX_MODULE_V1,
- &ngx_http_ssi_filter_module_ctx, /* module context */
- ngx_http_ssi_filter_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_http_output_header_filter_pt ngx_http_next_header_filter;
-static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
-
-
-static u_char ngx_http_ssi_string[] = "<!--";
-
-static ngx_str_t ngx_http_ssi_none = ngx_string("(none)");
-static ngx_str_t ngx_http_ssi_timefmt = ngx_string("%A, %d-%b-%Y %H:%M:%S %Z");
-static ngx_str_t ngx_http_ssi_null_string = ngx_null_string;
-
-
-#define NGX_HTTP_SSI_INCLUDE_VIRTUAL 0
-#define NGX_HTTP_SSI_INCLUDE_FILE 1
-#define NGX_HTTP_SSI_INCLUDE_WAIT 2
-#define NGX_HTTP_SSI_INCLUDE_SET 3
-#define NGX_HTTP_SSI_INCLUDE_STUB 4
-
-#define NGX_HTTP_SSI_ECHO_VAR 0
-#define NGX_HTTP_SSI_ECHO_DEFAULT 1
-#define NGX_HTTP_SSI_ECHO_ENCODING 2
-
-#define NGX_HTTP_SSI_CONFIG_ERRMSG 0
-#define NGX_HTTP_SSI_CONFIG_TIMEFMT 1
-
-#define NGX_HTTP_SSI_SET_VAR 0
-#define NGX_HTTP_SSI_SET_VALUE 1
-
-#define NGX_HTTP_SSI_IF_EXPR 0
-
-#define NGX_HTTP_SSI_BLOCK_NAME 0
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_include_params[] = {
- { ngx_string("virtual"), NGX_HTTP_SSI_INCLUDE_VIRTUAL, 0, 0 },
- { ngx_string("file"), NGX_HTTP_SSI_INCLUDE_FILE, 0, 0 },
- { ngx_string("wait"), NGX_HTTP_SSI_INCLUDE_WAIT, 0, 0 },
- { ngx_string("set"), NGX_HTTP_SSI_INCLUDE_SET, 0, 0 },
- { ngx_string("stub"), NGX_HTTP_SSI_INCLUDE_STUB, 0, 0 },
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_echo_params[] = {
- { ngx_string("var"), NGX_HTTP_SSI_ECHO_VAR, 1, 0 },
- { ngx_string("default"), NGX_HTTP_SSI_ECHO_DEFAULT, 0, 0 },
- { ngx_string("encoding"), NGX_HTTP_SSI_ECHO_ENCODING, 0, 0 },
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_config_params[] = {
- { ngx_string("errmsg"), NGX_HTTP_SSI_CONFIG_ERRMSG, 0, 0 },
- { ngx_string("timefmt"), NGX_HTTP_SSI_CONFIG_TIMEFMT, 0, 0 },
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_set_params[] = {
- { ngx_string("var"), NGX_HTTP_SSI_SET_VAR, 1, 0 },
- { ngx_string("value"), NGX_HTTP_SSI_SET_VALUE, 1, 0 },
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_if_params[] = {
- { ngx_string("expr"), NGX_HTTP_SSI_IF_EXPR, 1, 0 },
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_block_params[] = {
- { ngx_string("name"), NGX_HTTP_SSI_BLOCK_NAME, 1, 0 },
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_param_t ngx_http_ssi_no_params[] = {
- { ngx_null_string, 0, 0, 0 }
-};
-
-
-static ngx_http_ssi_command_t ngx_http_ssi_commands[] = {
- { ngx_string("include"), ngx_http_ssi_include,
- ngx_http_ssi_include_params, 0, 0, 1 },
- { ngx_string("echo"), ngx_http_ssi_echo,
- ngx_http_ssi_echo_params, 0, 0, 0 },
- { ngx_string("config"), ngx_http_ssi_config,
- ngx_http_ssi_config_params, 0, 0, 0 },
- { ngx_string("set"), ngx_http_ssi_set, ngx_http_ssi_set_params, 0, 0, 0 },
-
- { ngx_string("if"), ngx_http_ssi_if, ngx_http_ssi_if_params, 0, 0, 0 },
- { ngx_string("elif"), ngx_http_ssi_if, ngx_http_ssi_if_params,
- NGX_HTTP_SSI_COND_IF, 0, 0 },
- { ngx_string("else"), ngx_http_ssi_else, ngx_http_ssi_no_params,
- NGX_HTTP_SSI_COND_IF, 0, 0 },
- { ngx_string("endif"), ngx_http_ssi_endif, ngx_http_ssi_no_params,
- NGX_HTTP_SSI_COND_ELSE, 0, 0 },
-
- { ngx_string("block"), ngx_http_ssi_block,
- ngx_http_ssi_block_params, 0, 0, 0 },
- { ngx_string("endblock"), ngx_http_ssi_endblock,
- ngx_http_ssi_no_params, 0, 1, 0 },
-
- { ngx_null_string, NULL, NULL, 0, 0, 0 }
-};
-
-
-static ngx_http_variable_t ngx_http_ssi_vars[] = {
-
- { ngx_string("date_local"), NULL, ngx_http_ssi_date_gmt_local_variable, 0,
- NGX_HTTP_VAR_NOCACHEABLE, 0 },
-
- { ngx_string("date_gmt"), NULL, ngx_http_ssi_date_gmt_local_variable, 1,
- NGX_HTTP_VAR_NOCACHEABLE, 0 },
-
- { ngx_null_string, NULL, NULL, 0, 0, 0 }
-};
-
-
-
-static ngx_int_t
-ngx_http_ssi_header_filter(ngx_http_request_t *r)
-{
- ngx_http_ssi_ctx_t *ctx;
- ngx_http_ssi_loc_conf_t *slcf;
-
- slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
-
- if (!slcf->enable
- || r->headers_out.content_length_n == 0
- || ngx_http_test_content_type(r, &slcf->types) == NULL)
- {
- return ngx_http_next_header_filter(r);
- }
-
- ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_ssi_ctx_t));
- if (ctx == NULL) {
- return NGX_ERROR;
- }
-
- ngx_http_set_ctx(r, ctx, ngx_http_ssi_filter_module);
-
-
- ctx->value_len = slcf->value_len;
- ctx->last_out = &ctx->out;
-
- ctx->encoding = NGX_HTTP_SSI_ENTITY_ENCODING;
- ctx->output = 1;
-
- ctx->params.elts = ctx->params_array;
- ctx->params.size = sizeof(ngx_table_elt_t);
- ctx->params.nalloc = NGX_HTTP_SSI_PARAMS_N;
- ctx->params.pool = r->pool;
-
- ctx->timefmt = ngx_http_ssi_timefmt;
- ngx_str_set(&ctx->errmsg,
- "[an error occurred while processing the directive]");
-
- r->filter_need_in_memory = 1;
-
- if (r == r->main) {
- ngx_http_clear_content_length(r);
- ngx_http_clear_accept_ranges(r);
-
- if (!slcf->last_modified) {
- ngx_http_clear_last_modified(r);
- ngx_http_clear_etag(r);
-
- } else {
- ngx_http_weak_etag(r);
- }
- }
-
- return ngx_http_next_header_filter(r);
-}
-
-
-static ngx_int_t
-ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
-{
- size_t len;
- ngx_int_t rc;
- ngx_buf_t *b;
- ngx_uint_t i, index;
- ngx_chain_t *cl, **ll;
- ngx_table_elt_t *param;
- ngx_http_ssi_ctx_t *ctx, *mctx;
- ngx_http_ssi_block_t *bl;
- ngx_http_ssi_param_t *prm;
- ngx_http_ssi_command_t *cmd;
- ngx_http_ssi_loc_conf_t *slcf;
- ngx_http_ssi_main_conf_t *smcf;
- ngx_str_t *params[NGX_HTTP_SSI_MAX_PARAMS + 1];
-
- ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
-
- if (ctx == NULL
- || (in == NULL
- && ctx->buf == NULL
- && ctx->in == NULL
- && ctx->busy == NULL))
- {
- return ngx_http_next_body_filter(r, in);
- }
-
- /* add the incoming chain to the chain ctx->in */
-
- if (in) {
- if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) {
- return NGX_ERROR;
- }
- }
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "http ssi filter \"%V?%V\"", &r->uri, &r->args);
-
- if (ctx->wait) {
-
- if (r != r->connection->data) {
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "http ssi filter wait \"%V?%V\" non-active",
- &ctx->wait->uri, &ctx->wait->args);
-
- return NGX_AGAIN;
- }
-
- if (ctx->wait->done) {
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "http ssi filter wait \"%V?%V\" done",
- &ctx->wait->uri, &ctx->wait->args);
-
- ctx->wait = NULL;
-
- } else {
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "http ssi filter wait \"%V?%V\"",
- &ctx->wait->uri, &ctx->wait->args);
-
- return ngx_http_next_body_filter(r, NULL);
- }
- }
-
- slcf = ngx_http_get_module_loc_conf(r, ngx_http_ssi_filter_module);
-
- while (ctx->in || ctx->buf) {
-
- if (ctx->buf == NULL) {
- ctx->buf = ctx->in->buf;
- ctx->in = ctx->in->next;
- ctx->pos = ctx->buf->pos;
- }
-
- if (ctx->state == ssi_start_state) {
- ctx->copy_start = ctx->pos;
- ctx->copy_end = ctx->pos;
- }
-
- b = NULL;
-
- while (ctx->pos < ctx->buf->last) {
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "saved: %uz state: %ui", ctx->saved, ctx->state);
-
- rc = ngx_http_ssi_parse(r, ctx);
-
- ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "parse: %i, looked: %uz %p-%p",
- rc, ctx->looked, ctx->copy_start, ctx->copy_end);
-
- if (rc == NGX_ERROR) {
- return rc;
- }
-
- if (ctx->copy_start != ctx->copy_end) {
-
- if (ctx->output) {
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "saved: %uz", ctx->saved);
-
- if (ctx->saved) {
-
- if (ctx->free) {
- cl = ctx->free;
- ctx->free = ctx->free->next;
- b = cl->buf;
- ngx_memzero(b, sizeof(ngx_buf_t));
-
- } else {
- b = ngx_calloc_buf(r->pool);
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- }
-
- b->memory = 1;
- b->pos = ngx_http_ssi_string;
- b->last = ngx_http_ssi_string + ctx->saved;
-
- *ctx->last_out = cl;
- ctx->last_out = &cl->next;
-
- ctx->saved = 0;
- }
-
- if (ctx->free) {
- cl = ctx->free;
- ctx->free = ctx->free->next;
- b = cl->buf;
-
- } else {
- b = ngx_alloc_buf(r->pool);
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- }
-
- ngx_memcpy(b, ctx->buf, sizeof(ngx_buf_t));
-
- b->pos = ctx->copy_start;
- b->last = ctx->copy_end;
- b->shadow = NULL;
- b->last_buf = 0;
- b->recycled = 0;
-
- if (b->in_file) {
- if (slcf->min_file_chunk < (size_t) (b->last - b->pos))
- {
- b->file_last = b->file_pos
- + (b->last - ctx->buf->pos);
- b->file_pos += b->pos - ctx->buf->pos;
-
- } else {
- b->in_file = 0;
- }
- }
-
- cl->next = NULL;
- *ctx->last_out = cl;
- ctx->last_out = &cl->next;
-
- } else {
- if (ctx->block
- && ctx->saved + (ctx->copy_end - ctx->copy_start))
- {
- b = ngx_create_temp_buf(r->pool,
- ctx->saved + (ctx->copy_end - ctx->copy_start));
-
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- if (ctx->saved) {
- b->last = ngx_cpymem(b->pos, ngx_http_ssi_string,
- ctx->saved);
- }
-
- b->last = ngx_cpymem(b->last, ctx->copy_start,
- ctx->copy_end - ctx->copy_start);
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- cl->next = NULL;
-
- b = NULL;
-
- mctx = ngx_http_get_module_ctx(r->main,
- ngx_http_ssi_filter_module);
- bl = mctx->blocks->elts;
- for (ll = &bl[mctx->blocks->nelts - 1].bufs;
- *ll;
- ll = &(*ll)->next)
- {
- /* void */
- }
-
- *ll = cl;
- }
-
- ctx->saved = 0;
- }
- }
-
- if (ctx->state == ssi_start_state) {
- ctx->copy_start = ctx->pos;
- ctx->copy_end = ctx->pos;
-
- } else {
- ctx->copy_start = NULL;
- ctx->copy_end = NULL;
- }
-
- if (rc == NGX_AGAIN) {
- continue;
- }
-
-
- b = NULL;
-
- if (rc == NGX_OK) {
-
- smcf = ngx_http_get_module_main_conf(r,
- ngx_http_ssi_filter_module);
-
- cmd = ngx_hash_find(&smcf->hash, ctx->key, ctx->command.data,
- ctx->command.len);
-
- if (cmd == NULL) {
- if (ctx->output) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid SSI command: \"%V\"",
- &ctx->command);
- goto ssi_error;
- }
-
- continue;
- }
-
- if (!ctx->output && !cmd->block) {
-
- if (ctx->block) {
-
- /* reconstruct the SSI command text */
-
- len = 5 + ctx->command.len + 4;
-
- param = ctx->params.elts;
- for (i = 0; i < ctx->params.nelts; i++) {
- len += 1 + param[i].key.len + 2
- + param[i].value.len + 1;
- }
-
- b = ngx_create_temp_buf(r->pool, len);
-
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- cl->next = NULL;
-
- *b->last++ = '<';
- *b->last++ = '!';
- *b->last++ = '-';
- *b->last++ = '-';
- *b->last++ = '#';
-
- b->last = ngx_cpymem(b->last, ctx->command.data,
- ctx->command.len);
-
- for (i = 0; i < ctx->params.nelts; i++) {
- *b->last++ = ' ';
- b->last = ngx_cpymem(b->last, param[i].key.data,
- param[i].key.len);
- *b->last++ = '=';
- *b->last++ = '"';
- b->last = ngx_cpymem(b->last, param[i].value.data,
- param[i].value.len);
- *b->last++ = '"';
- }
-
- *b->last++ = ' ';
- *b->last++ = '-';
- *b->last++ = '-';
- *b->last++ = '>';
-
- mctx = ngx_http_get_module_ctx(r->main,
- ngx_http_ssi_filter_module);
- bl = mctx->blocks->elts;
- for (ll = &bl[mctx->blocks->nelts - 1].bufs;
- *ll;
- ll = &(*ll)->next)
- {
- /* void */
- }
-
- *ll = cl;
-
- b = NULL;
-
- continue;
- }
-
- if (cmd->conditional == 0) {
- continue;
- }
- }
-
- if (cmd->conditional
- && (ctx->conditional == 0
- || ctx->conditional > cmd->conditional))
- {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid context of SSI command: \"%V\"",
- &ctx->command);
- goto ssi_error;
- }
-
- if (ctx->params.nelts > NGX_HTTP_SSI_MAX_PARAMS) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "too many SSI command parameters: \"%V\"",
- &ctx->command);
- goto ssi_error;
- }
-
- ngx_memzero(params,
- (NGX_HTTP_SSI_MAX_PARAMS + 1) * sizeof(ngx_str_t *));
-
- param = ctx->params.elts;
-
- for (i = 0; i < ctx->params.nelts; i++) {
-
- for (prm = cmd->params; prm->name.len; prm++) {
-
- if (param[i].key.len != prm->name.len
- || ngx_strncmp(param[i].key.data, prm->name.data,
- prm->name.len) != 0)
- {
- continue;
- }
-
- if (!prm->multiple) {
- if (params[prm->index]) {
- ngx_log_error(NGX_LOG_ERR,
- r->connection->log, 0,
- "duplicate \"%V\" parameter "
- "in \"%V\" SSI command",
- &param[i].key, &ctx->command);
-
- goto ssi_error;
- }
-
- params[prm->index] = &param[i].value;
-
- break;
- }
-
- for (index = prm->index; params[index]; index++) {
- /* void */
- }
-
- params[index] = &param[i].value;
-
- break;
- }
-
- if (prm->name.len == 0) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid parameter name: \"%V\" "
- "in \"%V\" SSI command",
- &param[i].key, &ctx->command);
-
- goto ssi_error;
- }
- }
-
- for (prm = cmd->params; prm->name.len; prm++) {
- if (prm->mandatory && params[prm->index] == 0) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "mandatory \"%V\" parameter is absent "
- "in \"%V\" SSI command",
- &prm->name, &ctx->command);
-
- goto ssi_error;
- }
- }
-
- if (cmd->flush && ctx->out) {
-
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi flush");
-
- if (ngx_http_ssi_output(r, ctx) == NGX_ERROR) {
- return NGX_ERROR;
- }
- }
-
- rc = cmd->handler(r, ctx, params);
-
- if (rc == NGX_OK) {
- continue;
- }
-
- if (rc == NGX_DONE || rc == NGX_AGAIN || rc == NGX_ERROR) {
- ngx_http_ssi_buffered(r, ctx);
- return rc;
- }
- }
-
-
- /* rc == NGX_HTTP_SSI_ERROR */
-
- ssi_error:
-
- if (slcf->silent_errors) {
- continue;
- }
-
- if (ctx->free) {
- cl = ctx->free;
- ctx->free = ctx->free->next;
- b = cl->buf;
- ngx_memzero(b, sizeof(ngx_buf_t));
-
- } else {
- b = ngx_calloc_buf(r->pool);
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- }
-
- b->memory = 1;
- b->pos = ctx->errmsg.data;
- b->last = ctx->errmsg.data + ctx->errmsg.len;
-
- cl->next = NULL;
- *ctx->last_out = cl;
- ctx->last_out = &cl->next;
-
- continue;
- }
-
- if (ctx->buf->last_buf || ngx_buf_in_memory(ctx->buf)) {
- if (b == NULL) {
- if (ctx->free) {
- cl = ctx->free;
- ctx->free = ctx->free->next;
- b = cl->buf;
- ngx_memzero(b, sizeof(ngx_buf_t));
-
- } else {
- b = ngx_calloc_buf(r->pool);
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- }
-
- b->sync = 1;
-
- cl->next = NULL;
- *ctx->last_out = cl;
- ctx->last_out = &cl->next;
- }
-
- b->last_buf = ctx->buf->last_buf;
- b->shadow = ctx->buf;
-
- if (slcf->ignore_recycled_buffers == 0) {
- b->recycled = ctx->buf->recycled;
- }
- }
-
- ctx->buf = NULL;
-
- ctx->saved = ctx->looked;
- }
-
- if (ctx->out == NULL && ctx->busy == NULL) {
- return NGX_OK;
- }
-
- return ngx_http_ssi_output(r, ctx);
-}
-
-
-static ngx_int_t
-ngx_http_ssi_output(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
-{
- ngx_int_t rc;
- ngx_buf_t *b;
- ngx_chain_t *cl;
-
-#if 1
- b = NULL;
- for (cl = ctx->out; cl; cl = cl->next) {
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi out: %p %p", cl->buf, cl->buf->pos);
- if (cl->buf == b) {
- ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
- "the same buf was used in ssi");
- ngx_debug_point();
- return NGX_ERROR;
- }
- b = cl->buf;
- }
-#endif
-
- rc = ngx_http_next_body_filter(r, ctx->out);
-
- if (ctx->busy == NULL) {
- ctx->busy = ctx->out;
-
- } else {
- for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ }
- cl->next = ctx->out;
- }
-
- ctx->out = NULL;
- ctx->last_out = &ctx->out;
-
- while (ctx->busy) {
-
- cl = ctx->busy;
- b = cl->buf;
-
- if (ngx_buf_size(b) != 0) {
- break;
- }
-
- if (b->shadow) {
- b->shadow->pos = b->shadow->last;
- }
-
- ctx->busy = cl->next;
-
- if (ngx_buf_in_memory(b) || b->in_file) {
- /* add data bufs only to the free buf chain */
-
- cl->next = ctx->free;
- ctx->free = cl;
- }
- }
-
- ngx_http_ssi_buffered(r, ctx);
-
- return rc;
-}
-
-
-static void
-ngx_http_ssi_buffered(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
-{
- if (ctx->in || ctx->buf) {
- r->buffered |= NGX_HTTP_SSI_BUFFERED;
-
- } else {
- r->buffered &= ~NGX_HTTP_SSI_BUFFERED;
- }
-}
-
-
-static ngx_int_t
-ngx_http_ssi_parse(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx)
-{
- u_char *p, *value, *last, *copy_end, ch;
- size_t looked;
- ngx_http_ssi_state_e state;
-
- state = ctx->state;
- looked = ctx->looked;
- last = ctx->buf->last;
- copy_end = ctx->copy_end;
-
- for (p = ctx->pos; p < last; p++) {
-
- ch = *p;
-
- if (state == ssi_start_state) {
-
- /* the tight loop */
-
- for ( ;; ) {
- if (ch == '<') {
- copy_end = p;
- looked = 1;
- state = ssi_tag_state;
-
- goto tag_started;
- }
-
- if (++p == last) {
- break;
- }
-
- ch = *p;
- }
-
- ctx->state = state;
- ctx->pos = p;
- ctx->looked = looked;
- ctx->copy_end = p;
-
- if (ctx->copy_start == NULL) {
- ctx->copy_start = ctx->buf->pos;
- }
-
- return NGX_AGAIN;
-
- tag_started:
-
- continue;
- }
-
- switch (state) {
-
- case ssi_start_state:
- /* not reached */
- break;
-
- case ssi_tag_state:
- switch (ch) {
- case '!':
- looked = 2;
- state = ssi_comment0_state;
- break;
-
- case '<':
- copy_end = p;
- break;
-
- default:
- copy_end = p;
- looked = 0;
- state = ssi_start_state;
- break;
- }
-
- break;
-
- case ssi_comment0_state:
- switch (ch) {
- case '-':
- looked = 3;
- state = ssi_comment1_state;
- break;
-
- case '<':
- copy_end = p;
- looked = 1;
- state = ssi_tag_state;
- break;
-
- default:
- copy_end = p;
- looked = 0;
- state = ssi_start_state;
- break;
- }
-
- break;
-
- case ssi_comment1_state:
- switch (ch) {
- case '-':
- looked = 4;
- state = ssi_sharp_state;
- break;
-
- case '<':
- copy_end = p;
- looked = 1;
- state = ssi_tag_state;
- break;
-
- default:
- copy_end = p;
- looked = 0;
- state = ssi_start_state;
- break;
- }
-
- break;
-
- case ssi_sharp_state:
- switch (ch) {
- case '#':
- if (p - ctx->pos < 4) {
- ctx->saved = 0;
- }
- looked = 0;
- state = ssi_precommand_state;
- break;
-
- case '<':
- copy_end = p;
- looked = 1;
- state = ssi_tag_state;
- break;
-
- default:
- copy_end = p;
- looked = 0;
- state = ssi_start_state;
- break;
- }
-
- break;
-
- case ssi_precommand_state:
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- break;
-
- default:
- ctx->command.len = 1;
- ctx->command.data = ngx_pnalloc(r->pool,
- NGX_HTTP_SSI_COMMAND_LEN);
- if (ctx->command.data == NULL) {
- return NGX_ERROR;
- }
-
- ctx->command.data[0] = ch;
-
- ctx->key = 0;
- ctx->key = ngx_hash(ctx->key, ch);
-
- ctx->params.nelts = 0;
-
- state = ssi_command_state;
- break;
- }
-
- break;
-
- case ssi_command_state:
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- state = ssi_preparam_state;
- break;
-
- case '-':
- state = ssi_comment_end0_state;
- break;
-
- default:
- if (ctx->command.len == NGX_HTTP_SSI_COMMAND_LEN) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "the \"%V%c...\" SSI command is too long",
- &ctx->command, ch);
-
- state = ssi_error_state;
- break;
- }
-
- ctx->command.data[ctx->command.len++] = ch;
- ctx->key = ngx_hash(ctx->key, ch);
- }
-
- break;
-
- case ssi_preparam_state:
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- break;
-
- case '-':
- state = ssi_comment_end0_state;
- break;
-
- default:
- ctx->param = ngx_array_push(&ctx->params);
- if (ctx->param == NULL) {
- return NGX_ERROR;
- }
-
- ctx->param->key.len = 1;
- ctx->param->key.data = ngx_pnalloc(r->pool,
- NGX_HTTP_SSI_PARAM_LEN);
- if (ctx->param->key.data == NULL) {
- return NGX_ERROR;
- }
-
- ctx->param->key.data[0] = ch;
-
- ctx->param->value.len = 0;
-
- if (ctx->value_buf == NULL) {
- ctx->param->value.data = ngx_pnalloc(r->pool,
- ctx->value_len + 1);
- if (ctx->param->value.data == NULL) {
- return NGX_ERROR;
- }
-
- } else {
- ctx->param->value.data = ctx->value_buf;
- }
-
- state = ssi_param_state;
- break;
- }
-
- break;
-
- case ssi_param_state:
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- state = ssi_preequal_state;
- break;
-
- case '=':
- state = ssi_prevalue_state;
- break;
-
- case '-':
- state = ssi_error_end0_state;
-
- ctx->param->key.data[ctx->param->key.len++] = ch;
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid \"%V\" parameter in \"%V\" SSI command",
- &ctx->param->key, &ctx->command);
- break;
-
- default:
- if (ctx->param->key.len == NGX_HTTP_SSI_PARAM_LEN) {
- state = ssi_error_state;
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "too long \"%V%c...\" parameter in "
- "\"%V\" SSI command",
- &ctx->param->key, ch, &ctx->command);
- break;
- }
-
- ctx->param->key.data[ctx->param->key.len++] = ch;
- }
-
- break;
-
- case ssi_preequal_state:
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- break;
-
- case '=':
- state = ssi_prevalue_state;
- break;
-
- default:
- if (ch == '-') {
- state = ssi_error_end0_state;
- } else {
- state = ssi_error_state;
- }
-
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "unexpected \"%c\" symbol after \"%V\" "
- "parameter in \"%V\" SSI command",
- ch, &ctx->param->key, &ctx->command);
- break;
- }
-
- break;
-
- case ssi_prevalue_state:
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- break;
-
- case '"':
- state = ssi_double_quoted_value_state;
- break;
-
- case '\'':
- state = ssi_quoted_value_state;
- break;
-
- default:
- if (ch == '-') {
- state = ssi_error_end0_state;
- } else {
- state = ssi_error_state;
- }
-
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "unexpected \"%c\" symbol before value of "
- "\"%V\" parameter in \"%V\" SSI command",
- ch, &ctx->param->key, &ctx->command);
- break;
- }
-
- break;
-
- case ssi_double_quoted_value_state:
- switch (ch) {
- case '"':
- state = ssi_postparam_state;
- break;
-
- case '\\':
- ctx->saved_state = ssi_double_quoted_value_state;
- state = ssi_quoted_symbol_state;
-
- /* fall through */
-
- default:
- if (ctx->param->value.len == ctx->value_len) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "too long \"%V%c...\" value of \"%V\" "
- "parameter in \"%V\" SSI command",
- &ctx->param->value, ch, &ctx->param->key,
- &ctx->command);
- state = ssi_error_state;
- break;
- }
-
- ctx->param->value.data[ctx->param->value.len++] = ch;
- }
-
- break;
-
- case ssi_quoted_value_state:
- switch (ch) {
- case '\'':
- state = ssi_postparam_state;
- break;
-
- case '\\':
- ctx->saved_state = ssi_quoted_value_state;
- state = ssi_quoted_symbol_state;
-
- /* fall through */
-
- default:
- if (ctx->param->value.len == ctx->value_len) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "too long \"%V%c...\" value of \"%V\" "
- "parameter in \"%V\" SSI command",
- &ctx->param->value, ch, &ctx->param->key,
- &ctx->command);
- state = ssi_error_state;
- break;
- }
-
- ctx->param->value.data[ctx->param->value.len++] = ch;
- }
-
- break;
-
- case ssi_quoted_symbol_state:
- state = ctx->saved_state;
-
- if (ctx->param->value.len == ctx->value_len) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "too long \"%V%c...\" value of \"%V\" "
- "parameter in \"%V\" SSI command",
- &ctx->param->value, ch, &ctx->param->key,
- &ctx->command);
- state = ssi_error_state;
- break;
- }
-
- ctx->param->value.data[ctx->param->value.len++] = ch;
-
- break;
-
- case ssi_postparam_state:
-
- if (ctx->param->value.len + 1 < ctx->value_len / 2) {
- value = ngx_pnalloc(r->pool, ctx->param->value.len + 1);
- if (value == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(value, ctx->param->value.data,
- ctx->param->value.len);
-
- ctx->value_buf = ctx->param->value.data;
- ctx->param->value.data = value;
-
- } else {
- ctx->value_buf = NULL;
- }
-
- switch (ch) {
- case ' ':
- case CR:
- case LF:
- case '\t':
- state = ssi_preparam_state;
- break;
-
- case '-':
- state = ssi_comment_end0_state;
- break;
-
- default:
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "unexpected \"%c\" symbol after \"%V\" value "
- "of \"%V\" parameter in \"%V\" SSI command",
- ch, &ctx->param->value, &ctx->param->key,
- &ctx->command);
- state = ssi_error_state;
- break;
- }
-
- break;
-
- case ssi_comment_end0_state:
- switch (ch) {
- case '-':
- state = ssi_comment_end1_state;
- break;
-
- default:
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "unexpected \"%c\" symbol in \"%V\" SSI command",
- ch, &ctx->command);
- state = ssi_error_state;
- break;
- }
-
- break;
-
- case ssi_comment_end1_state:
- switch (ch) {
- case '>':
- ctx->state = ssi_start_state;
- ctx->pos = p + 1;
- ctx->looked = looked;
- ctx->copy_end = copy_end;
-
- if (ctx->copy_start == NULL && copy_end) {
- ctx->copy_start = ctx->buf->pos;
- }
-
- return NGX_OK;
-
- default:
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "unexpected \"%c\" symbol in \"%V\" SSI command",
- ch, &ctx->command);
- state = ssi_error_state;
- break;
- }
-
- break;
-
- case ssi_error_state:
- switch (ch) {
- case '-':
- state = ssi_error_end0_state;
- break;
-
- default:
- break;
- }
-
- break;
-
- case ssi_error_end0_state:
- switch (ch) {
- case '-':
- state = ssi_error_end1_state;
- break;
-
- default:
- state = ssi_error_state;
- break;
- }
-
- break;
-
- case ssi_error_end1_state:
- switch (ch) {
- case '>':
- ctx->state = ssi_start_state;
- ctx->pos = p + 1;
- ctx->looked = looked;
- ctx->copy_end = copy_end;
-
- if (ctx->copy_start == NULL && copy_end) {
- ctx->copy_start = ctx->buf->pos;
- }
-
- return NGX_HTTP_SSI_ERROR;
-
- default:
- state = ssi_error_state;
- break;
- }
-
- break;
- }
- }
-
- ctx->state = state;
- ctx->pos = p;
- ctx->looked = looked;
-
- ctx->copy_end = (state == ssi_start_state) ? p : copy_end;
-
- if (ctx->copy_start == NULL && ctx->copy_end) {
- ctx->copy_start = ctx->buf->pos;
- }
-
- return NGX_AGAIN;
-}
-
-
-static ngx_str_t *
-ngx_http_ssi_get_variable(ngx_http_request_t *r, ngx_str_t *name,
- ngx_uint_t key)
-{
- ngx_uint_t i;
- ngx_list_part_t *part;
- ngx_http_ssi_var_t *var;
- ngx_http_ssi_ctx_t *ctx;
-
- ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
-
-#if (NGX_PCRE)
- {
- ngx_str_t *value;
-
- if (key >= '0' && key <= '9') {
- i = key - '0';
-
- if (i < ctx->ncaptures) {
- value = ngx_palloc(r->pool, sizeof(ngx_str_t));
- if (value == NULL) {
- return NULL;
- }
-
- i *= 2;
-
- value->data = ctx->captures_data + ctx->captures[i];
- value->len = ctx->captures[i + 1] - ctx->captures[i];
-
- return value;
- }
- }
- }
-#endif
-
- if (ctx->variables == NULL) {
- return NULL;
- }
-
- part = &ctx->variables->part;
- var = part->elts;
-
- for (i = 0; /* void */ ; i++) {
-
- if (i >= part->nelts) {
- if (part->next == NULL) {
- break;
- }
-
- part = part->next;
- var = part->elts;
- i = 0;
- }
-
- if (name->len != var[i].name.len) {
- continue;
- }
-
- if (key != var[i].key) {
- continue;
- }
-
- if (ngx_strncmp(name->data, var[i].name.data, name->len) == 0) {
- return &var[i].value;
- }
- }
-
- return NULL;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_evaluate_string(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t *text, ngx_uint_t flags)
-{
- u_char ch, *p, **value, *data, *part_data;
- size_t *size, len, prefix, part_len;
- ngx_str_t var, *val;
- ngx_int_t key;
- ngx_uint_t i, n, bracket, quoted;
- ngx_array_t lengths, values;
- ngx_http_variable_value_t *vv;
-
- n = ngx_http_script_variables_count(text);
-
- if (n == 0) {
-
- data = text->data;
- p = data;
-
- if ((flags & NGX_HTTP_SSI_ADD_PREFIX) && text->data[0] != '/') {
-
- for (prefix = r->uri.len; prefix; prefix--) {
- if (r->uri.data[prefix - 1] == '/') {
- break;
- }
- }
-
- if (prefix) {
- len = prefix + text->len;
-
- data = ngx_pnalloc(r->pool, len);
- if (data == NULL) {
- return NGX_ERROR;
- }
-
- p = ngx_copy(data, r->uri.data, prefix);
- }
- }
-
- quoted = 0;
-
- for (i = 0; i < text->len; i++) {
- ch = text->data[i];
-
- if (!quoted) {
-
- if (ch == '\\') {
- quoted = 1;
- continue;
- }
-
- } else {
- quoted = 0;
-
- if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
- *p++ = '\\';
- }
- }
-
- *p++ = ch;
- }
-
- text->len = p - data;
- text->data = data;
-
- return NGX_OK;
- }
-
- if (ngx_array_init(&lengths, r->pool, 8, sizeof(size_t *)) != NGX_OK) {
- return NGX_ERROR;
- }
-
- if (ngx_array_init(&values, r->pool, 8, sizeof(u_char *)) != NGX_OK) {
- return NGX_ERROR;
- }
-
- len = 0;
- i = 0;
-
- while (i < text->len) {
-
- if (text->data[i] == '$') {
-
- var.len = 0;
-
- if (++i == text->len) {
- goto invalid_variable;
- }
-
- if (text->data[i] == '{') {
- bracket = 1;
-
- if (++i == text->len) {
- goto invalid_variable;
- }
-
- var.data = &text->data[i];
-
- } else {
- bracket = 0;
- var.data = &text->data[i];
- }
-
- for ( /* void */ ; i < text->len; i++, var.len++) {
- ch = text->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_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "the closing bracket in \"%V\" "
- "variable is missing", &var);
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (var.len == 0) {
- goto invalid_variable;
- }
-
- key = ngx_hash_strlow(var.data, var.data, var.len);
-
- val = ngx_http_ssi_get_variable(r, &var, key);
-
- if (val == NULL) {
- vv = ngx_http_get_variable(r, &var, key);
- if (vv == NULL) {
- return NGX_ERROR;
- }
-
- if (vv->not_found) {
- continue;
- }
-
- part_data = vv->data;
- part_len = vv->len;
-
- } else {
- part_data = val->data;
- part_len = val->len;
- }
-
- } else {
- part_data = &text->data[i];
- quoted = 0;
-
- for (p = part_data; i < text->len; i++) {
- ch = text->data[i];
-
- if (!quoted) {
-
- if (ch == '\\') {
- quoted = 1;
- continue;
- }
-
- if (ch == '$') {
- break;
- }
-
- } else {
- quoted = 0;
-
- if (ch != '\\' && ch != '\'' && ch != '"' && ch != '$') {
- *p++ = '\\';
- }
- }
-
- *p++ = ch;
- }
-
- part_len = p - part_data;
- }
-
- len += part_len;
-
- size = ngx_array_push(&lengths);
- if (size == NULL) {
- return NGX_ERROR;
- }
-
- *size = part_len;
-
- value = ngx_array_push(&values);
- if (value == NULL) {
- return NGX_ERROR;
- }
-
- *value = part_data;
- }
-
- prefix = 0;
-
- size = lengths.elts;
- value = values.elts;
-
- if (flags & NGX_HTTP_SSI_ADD_PREFIX) {
- for (i = 0; i < values.nelts; i++) {
- if (size[i] != 0) {
- if (*value[i] != '/') {
- for (prefix = r->uri.len; prefix; prefix--) {
- if (r->uri.data[prefix - 1] == '/') {
- len += prefix;
- break;
- }
- }
- }
-
- break;
- }
- }
- }
-
- p = ngx_pnalloc(r->pool, len + ((flags & NGX_HTTP_SSI_ADD_ZERO) ? 1 : 0));
- if (p == NULL) {
- return NGX_ERROR;
- }
-
- text->len = len;
- text->data = p;
-
- p = ngx_copy(p, r->uri.data, prefix);
-
- for (i = 0; i < values.nelts; i++) {
- p = ngx_copy(p, value[i], size[i]);
- }
-
- return NGX_OK;
-
-invalid_variable:
-
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid variable name in \"%V\"", text);
-
- return NGX_HTTP_SSI_ERROR;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_regex_match(ngx_http_request_t *r, ngx_str_t *pattern,
- ngx_str_t *str)
-{
-#if (NGX_PCRE)
- int rc, *captures;
- u_char *p, errstr[NGX_MAX_CONF_ERRSTR];
- size_t size;
- ngx_int_t key;
- ngx_str_t *vv, name, value;
- ngx_uint_t i, n;
- ngx_http_ssi_ctx_t *ctx;
- ngx_http_ssi_var_t *var;
- ngx_regex_compile_t rgc;
-
- ngx_memzero(&rgc, sizeof(ngx_regex_compile_t));
-
- rgc.pattern = *pattern;
- rgc.pool = r->pool;
- rgc.err.len = NGX_MAX_CONF_ERRSTR;
- rgc.err.data = errstr;
-
- if (ngx_regex_compile(&rgc) != NGX_OK) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%V", &rgc.err);
- return NGX_HTTP_SSI_ERROR;
- }
-
- n = (rgc.captures + 1) * 3;
-
- captures = ngx_palloc(r->pool, n * sizeof(int));
- if (captures == NULL) {
- return NGX_ERROR;
- }
-
- rc = ngx_regex_exec(rgc.regex, str, captures, n);
-
- if (rc < NGX_REGEX_NO_MATCHED) {
- ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
- ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
- rc, str, pattern);
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (rc == NGX_REGEX_NO_MATCHED) {
- return NGX_DECLINED;
- }
-
- ctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
-
- ctx->ncaptures = rc;
- ctx->captures = captures;
- ctx->captures_data = str->data;
-
- if (rgc.named_captures > 0) {
-
- if (ctx->variables == NULL) {
- ctx->variables = ngx_list_create(r->pool, 4,
- sizeof(ngx_http_ssi_var_t));
- if (ctx->variables == NULL) {
- return NGX_ERROR;
- }
- }
-
- size = rgc.name_size;
- p = rgc.names;
-
- for (i = 0; i < (ngx_uint_t) rgc.named_captures; i++, p += size) {
-
- name.data = &p[2];
- name.len = ngx_strlen(name.data);
-
- n = 2 * ((p[0] << 8) + p[1]);
-
- value.data = &str->data[captures[n]];
- value.len = captures[n + 1] - captures[n];
-
- key = ngx_hash_strlow(name.data, name.data, name.len);
-
- vv = ngx_http_ssi_get_variable(r, &name, key);
-
- if (vv) {
- *vv = value;
- continue;
- }
-
- var = ngx_list_push(ctx->variables);
- if (var == NULL) {
- return NGX_ERROR;
- }
-
- var->name = name;
- var->key = key;
- var->value = value;
- }
- }
-
- return NGX_OK;
-
-#else
-
- ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
- "the using of the regex \"%V\" in SSI requires PCRE library",
- pattern);
- return NGX_HTTP_SSI_ERROR;
-
-#endif
-}
-
-
-static ngx_int_t
-ngx_http_ssi_include(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_int_t rc, key;
- ngx_str_t *uri, *file, *wait, *set, *stub, args;
- ngx_buf_t *b;
- ngx_uint_t flags, i;
- ngx_chain_t *cl, *tl, **ll, *out;
- ngx_http_request_t *sr;
- ngx_http_ssi_var_t *var;
- ngx_http_ssi_ctx_t *mctx;
- ngx_http_ssi_block_t *bl;
- ngx_http_post_subrequest_t *psr;
-
- uri = params[NGX_HTTP_SSI_INCLUDE_VIRTUAL];
- file = params[NGX_HTTP_SSI_INCLUDE_FILE];
- wait = params[NGX_HTTP_SSI_INCLUDE_WAIT];
- set = params[NGX_HTTP_SSI_INCLUDE_SET];
- stub = params[NGX_HTTP_SSI_INCLUDE_STUB];
-
- if (uri && file) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "inclusion may be either virtual=\"%V\" or file=\"%V\"",
- uri, file);
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (uri == NULL && file == NULL) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "no parameter in \"include\" SSI command");
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (set && stub) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "\"set\" and \"stub\" cannot be used together "
- "in \"include\" SSI command");
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (wait) {
- if (uri == NULL) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "\"wait\" cannot be used with file=\"%V\"", file);
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (wait->len == 2
- && ngx_strncasecmp(wait->data, (u_char *) "no", 2) == 0)
- {
- wait = NULL;
-
- } else if (wait->len != 3
- || ngx_strncasecmp(wait->data, (u_char *) "yes", 3) != 0)
- {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid value \"%V\" in the \"wait\" parameter",
- wait);
- return NGX_HTTP_SSI_ERROR;
- }
- }
-
- if (uri == NULL) {
- uri = file;
- wait = (ngx_str_t *) -1;
- }
-
- rc = ngx_http_ssi_evaluate_string(r, ctx, uri, NGX_HTTP_SSI_ADD_PREFIX);
-
- if (rc != NGX_OK) {
- return rc;
- }
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi include: \"%V\"", uri);
-
- ngx_str_null(&args);
- flags = NGX_HTTP_LOG_UNSAFE;
-
- if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- psr = NULL;
-
- mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
-
- if (stub) {
- if (mctx->blocks) {
- bl = mctx->blocks->elts;
- for (i = 0; i < mctx->blocks->nelts; i++) {
- if (stub->len == bl[i].name.len
- && ngx_strncmp(stub->data, bl[i].name.data, stub->len) == 0)
- {
- goto found;
- }
- }
- }
-
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "\"stub\"=\"%V\" for \"include\" not found", stub);
- return NGX_HTTP_SSI_ERROR;
-
- found:
-
- psr = ngx_palloc(r->pool, sizeof(ngx_http_post_subrequest_t));
- if (psr == NULL) {
- return NGX_ERROR;
- }
-
- psr->handler = ngx_http_ssi_stub_output;
-
- if (bl[i].count++) {
-
- out = NULL;
- ll = &out;
-
- for (tl = bl[i].bufs; tl; tl = tl->next) {
-
- if (ctx->free) {
- cl = ctx->free;
- ctx->free = ctx->free->next;
- b = cl->buf;
-
- } else {
- b = ngx_alloc_buf(r->pool);
- if (b == NULL) {
- return NGX_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_ERROR;
- }
-
- cl->buf = b;
- }
-
- ngx_memcpy(b, tl->buf, sizeof(ngx_buf_t));
-
- b->pos = b->start;
-
- *ll = cl;
- cl->next = NULL;
- ll = &cl->next;
- }
-
- psr->data = out;
-
- } else {
- psr->data = bl[i].bufs;
- }
- }
-
- if (wait) {
- flags |= NGX_HTTP_SUBREQUEST_WAITED;
- }
-
- if (set) {
- key = ngx_hash_strlow(set->data, set->data, set->len);
-
- psr = ngx_palloc(r->pool, sizeof(ngx_http_post_subrequest_t));
- if (psr == NULL) {
- return NGX_ERROR;
- }
-
- psr->handler = ngx_http_ssi_set_variable;
- psr->data = ngx_http_ssi_get_variable(r, set, key);
-
- if (psr->data == NULL) {
-
- if (mctx->variables == NULL) {
- mctx->variables = ngx_list_create(r->pool, 4,
- sizeof(ngx_http_ssi_var_t));
- if (mctx->variables == NULL) {
- return NGX_ERROR;
- }
- }
-
- var = ngx_list_push(mctx->variables);
- if (var == NULL) {
- return NGX_ERROR;
- }
-
- var->name = *set;
- var->key = key;
- var->value = ngx_http_ssi_null_string;
- psr->data = &var->value;
- }
-
- flags |= NGX_HTTP_SUBREQUEST_IN_MEMORY|NGX_HTTP_SUBREQUEST_WAITED;
- }
-
- if (ngx_http_subrequest(r, uri, &args, &sr, psr, flags) != NGX_OK) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (wait == NULL && set == NULL) {
- return NGX_OK;
- }
-
- if (ctx->wait == NULL) {
- ctx->wait = sr;
-
- return NGX_AGAIN;
-
- } else {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "can only wait for one subrequest at a time");
- }
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_stub_output(ngx_http_request_t *r, void *data, ngx_int_t rc)
-{
- ngx_chain_t *out;
-
- if (rc == NGX_ERROR || r->connection->error || r->request_output) {
- return rc;
- }
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi stub output: \"%V?%V\"", &r->uri, &r->args);
-
- out = data;
-
- if (!r->header_sent) {
- r->headers_out.content_type_len =
- r->parent->headers_out.content_type_len;
- r->headers_out.content_type = r->parent->headers_out.content_type;
-
- if (ngx_http_send_header(r) == NGX_ERROR) {
- return NGX_ERROR;
- }
- }
-
- return ngx_http_output_filter(r, out);
-}
-
-
-static ngx_int_t
-ngx_http_ssi_set_variable(ngx_http_request_t *r, void *data, ngx_int_t rc)
-{
- ngx_str_t *value = data;
-
- if (r->upstream) {
- value->len = r->upstream->buffer.last - r->upstream->buffer.pos;
- value->data = r->upstream->buffer.pos;
- }
-
- return rc;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_echo(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- u_char *p;
- uintptr_t len;
- ngx_int_t key;
- ngx_buf_t *b;
- ngx_str_t *var, *value, *enc, text;
- ngx_chain_t *cl;
- ngx_http_variable_value_t *vv;
-
- var = params[NGX_HTTP_SSI_ECHO_VAR];
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi echo \"%V\"", var);
-
- key = ngx_hash_strlow(var->data, var->data, var->len);
-
- value = ngx_http_ssi_get_variable(r, var, key);
-
- if (value == NULL) {
- vv = ngx_http_get_variable(r, var, key);
-
- if (vv == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- if (!vv->not_found) {
- text.data = vv->data;
- text.len = vv->len;
- value = &text;
- }
- }
-
- if (value == NULL) {
- value = params[NGX_HTTP_SSI_ECHO_DEFAULT];
-
- if (value == NULL) {
- value = &ngx_http_ssi_none;
-
- } else if (value->len == 0) {
- return NGX_OK;
- }
-
- } else {
- if (value->len == 0) {
- return NGX_OK;
- }
- }
-
- enc = params[NGX_HTTP_SSI_ECHO_ENCODING];
-
- if (enc) {
- if (enc->len == 4 && ngx_strncmp(enc->data, "none", 4) == 0) {
-
- ctx->encoding = NGX_HTTP_SSI_NO_ENCODING;
-
- } else if (enc->len == 3 && ngx_strncmp(enc->data, "url", 3) == 0) {
-
- ctx->encoding = NGX_HTTP_SSI_URL_ENCODING;
-
- } else if (enc->len == 6 && ngx_strncmp(enc->data, "entity", 6) == 0) {
-
- ctx->encoding = NGX_HTTP_SSI_ENTITY_ENCODING;
-
- } else {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "unknown encoding \"%V\" in the \"echo\" command",
- enc);
- }
- }
-
- p = value->data;
-
- switch (ctx->encoding) {
-
- case NGX_HTTP_SSI_URL_ENCODING:
- len = 2 * ngx_escape_uri(NULL, value->data, value->len,
- NGX_ESCAPE_HTML);
-
- if (len) {
- p = ngx_pnalloc(r->pool, value->len + len);
- if (p == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- (void) ngx_escape_uri(p, value->data, value->len, NGX_ESCAPE_HTML);
- }
-
- len += value->len;
- break;
-
- case NGX_HTTP_SSI_ENTITY_ENCODING:
- len = ngx_escape_html(NULL, value->data, value->len);
-
- if (len) {
- p = ngx_pnalloc(r->pool, value->len + len);
- if (p == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- (void) ngx_escape_html(p, value->data, value->len);
- }
-
- len += value->len;
- break;
-
- default: /* NGX_HTTP_SSI_NO_ENCODING */
- len = value->len;
- break;
- }
-
- b = ngx_calloc_buf(r->pool);
- if (b == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- cl = ngx_alloc_chain_link(r->pool);
- if (cl == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- b->memory = 1;
- b->pos = p;
- b->last = p + len;
-
- cl->buf = b;
- cl->next = NULL;
- *ctx->last_out = cl;
- ctx->last_out = &cl->next;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_config(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_str_t *value;
-
- value = params[NGX_HTTP_SSI_CONFIG_TIMEFMT];
-
- if (value) {
- ctx->timefmt.len = value->len;
- ctx->timefmt.data = ngx_pnalloc(r->pool, value->len + 1);
- if (ctx->timefmt.data == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- ngx_cpystrn(ctx->timefmt.data, value->data, value->len + 1);
- }
-
- value = params[NGX_HTTP_SSI_CONFIG_ERRMSG];
-
- if (value) {
- ctx->errmsg = *value;
- }
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_set(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_int_t key, rc;
- ngx_str_t *name, *value, *vv;
- ngx_http_ssi_var_t *var;
- ngx_http_ssi_ctx_t *mctx;
-
- mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
-
- if (mctx->variables == NULL) {
- mctx->variables = ngx_list_create(r->pool, 4,
- sizeof(ngx_http_ssi_var_t));
- if (mctx->variables == NULL) {
- return NGX_ERROR;
- }
- }
-
- name = params[NGX_HTTP_SSI_SET_VAR];
- value = params[NGX_HTTP_SSI_SET_VALUE];
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi set \"%V\" \"%V\"", name, value);
-
- rc = ngx_http_ssi_evaluate_string(r, ctx, value, 0);
-
- if (rc != NGX_OK) {
- return rc;
- }
-
- key = ngx_hash_strlow(name->data, name->data, name->len);
-
- vv = ngx_http_ssi_get_variable(r, name, key);
-
- if (vv) {
- *vv = *value;
- return NGX_OK;
- }
-
- var = ngx_list_push(mctx->variables);
- if (var == NULL) {
- return NGX_ERROR;
- }
-
- var->name = *name;
- var->key = key;
- var->value = *value;
-
- ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "set: \"%V\"=\"%V\"", name, value);
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_if(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- u_char *p, *last;
- ngx_str_t *expr, left, right;
- ngx_int_t rc;
- ngx_uint_t negative, noregex, flags;
-
- if (ctx->command.len == 2) {
- if (ctx->conditional) {
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "the \"if\" command inside the \"if\" command");
- return NGX_HTTP_SSI_ERROR;
- }
- }
-
- if (ctx->output_chosen) {
- ctx->output = 0;
- return NGX_OK;
- }
-
- expr = params[NGX_HTTP_SSI_IF_EXPR];
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi if expr=\"%V\"", expr);
-
- left.data = expr->data;
- last = expr->data + expr->len;
-
- for (p = left.data; p < last; p++) {
- if (*p >= 'A' && *p <= 'Z') {
- *p |= 0x20;
- continue;
- }
-
- if ((*p >= 'a' && *p <= 'z')
- || (*p >= '0' && *p <= '9')
- || *p == '$' || *p == '{' || *p == '}' || *p == '_'
- || *p == '"' || *p == '\'')
- {
- continue;
- }
-
- break;
- }
-
- left.len = p - left.data;
-
- while (p < last && *p == ' ') {
- p++;
- }
-
- flags = 0;
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "left: \"%V\"", &left);
-
- rc = ngx_http_ssi_evaluate_string(r, ctx, &left, flags);
-
- if (rc != NGX_OK) {
- return rc;
- }
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "evaluated left: \"%V\"", &left);
-
- if (p == last) {
- if (left.len) {
- ctx->output = 1;
- ctx->output_chosen = 1;
-
- } else {
- ctx->output = 0;
- }
-
- ctx->conditional = NGX_HTTP_SSI_COND_IF;
-
- return NGX_OK;
- }
-
- if (p < last && *p == '=') {
- negative = 0;
- p++;
-
- } else if (p + 1 < last && *p == '!' && *(p + 1) == '=') {
- negative = 1;
- p += 2;
-
- } else {
- goto invalid_expression;
- }
-
- while (p < last && *p == ' ') {
- p++;
- }
-
- if (p < last - 1 && *p == '/') {
- if (*(last - 1) != '/') {
- goto invalid_expression;
- }
-
- noregex = 0;
- flags = NGX_HTTP_SSI_ADD_ZERO;
- last--;
- p++;
-
- } else {
- noregex = 1;
- flags = 0;
-
- if (p < last - 1 && p[0] == '\\' && p[1] == '/') {
- p++;
- }
- }
-
- right.len = last - p;
- right.data = p;
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "right: \"%V\"", &right);
-
- rc = ngx_http_ssi_evaluate_string(r, ctx, &right, flags);
-
- if (rc != NGX_OK) {
- return rc;
- }
-
- ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "evaluated right: \"%V\"", &right);
-
- if (noregex) {
- if (left.len != right.len) {
- rc = -1;
-
- } else {
- rc = ngx_strncmp(left.data, right.data, right.len);
- }
-
- } else {
- right.data[right.len] = '\0';
-
- rc = ngx_http_ssi_regex_match(r, &right, &left);
-
- if (rc == NGX_OK) {
- rc = 0;
- } else if (rc == NGX_DECLINED) {
- rc = -1;
- } else {
- return rc;
- }
- }
-
- if ((rc == 0 && !negative) || (rc != 0 && negative)) {
- ctx->output = 1;
- ctx->output_chosen = 1;
-
- } else {
- ctx->output = 0;
- }
-
- ctx->conditional = NGX_HTTP_SSI_COND_IF;
-
- return NGX_OK;
-
-invalid_expression:
-
- ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
- "invalid expression in \"%V\"", expr);
-
- return NGX_HTTP_SSI_ERROR;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_else(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi else");
-
- if (ctx->output_chosen) {
- ctx->output = 0;
- } else {
- ctx->output = 1;
- }
-
- ctx->conditional = NGX_HTTP_SSI_COND_ELSE;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_endif(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi endif");
-
- ctx->output = 1;
- ctx->output_chosen = 0;
- ctx->conditional = 0;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_block(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_http_ssi_ctx_t *mctx;
- ngx_http_ssi_block_t *bl;
-
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi block");
-
- mctx = ngx_http_get_module_ctx(r->main, ngx_http_ssi_filter_module);
-
- if (mctx->blocks == NULL) {
- mctx->blocks = ngx_array_create(r->pool, 4,
- sizeof(ngx_http_ssi_block_t));
- if (mctx->blocks == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
- }
-
- bl = ngx_array_push(mctx->blocks);
- if (bl == NULL) {
- return NGX_HTTP_SSI_ERROR;
- }
-
- bl->name = *params[NGX_HTTP_SSI_BLOCK_NAME];
- bl->bufs = NULL;
- bl->count = 0;
-
- ctx->output = 0;
- ctx->block = 1;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_endblock(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ctx,
- ngx_str_t **params)
-{
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
- "ssi endblock");
-
- ctx->output = 1;
- ctx->block = 0;
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_date_gmt_local_variable(ngx_http_request_t *r,
- ngx_http_variable_value_t *v, uintptr_t gmt)
-{
- time_t now;
- ngx_http_ssi_ctx_t *ctx;
- ngx_str_t *timefmt;
- struct tm tm;
- char buf[NGX_HTTP_SSI_DATE_LEN];
-
- v->valid = 1;
- v->no_cacheable = 0;
- v->not_found = 0;
-
- now = ngx_time();
-
- ctx = ngx_http_get_module_ctx(r, ngx_http_ssi_filter_module);
-
- timefmt = ctx ? &ctx->timefmt : &ngx_http_ssi_timefmt;
-
- if (timefmt->len == sizeof("%s") - 1
- && timefmt->data[0] == '%' && timefmt->data[1] == 's')
- {
- v->data = ngx_pnalloc(r->pool, NGX_TIME_T_LEN);
- if (v->data == NULL) {
- return NGX_ERROR;
- }
-
- v->len = ngx_sprintf(v->data, "%T", now) - v->data;
-
- return NGX_OK;
- }
-
- if (gmt) {
- ngx_libc_gmtime(now, &tm);
- } else {
- ngx_libc_localtime(now, &tm);
- }
-
- v->len = strftime(buf, NGX_HTTP_SSI_DATE_LEN,
- (char *) timefmt->data, &tm);
- if (v->len == 0) {
- return NGX_ERROR;
- }
-
- v->data = ngx_pnalloc(r->pool, v->len);
- if (v->data == NULL) {
- return NGX_ERROR;
- }
-
- ngx_memcpy(v->data, buf, v->len);
-
- return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_preconfiguration(ngx_conf_t *cf)
-{
- ngx_int_t rc;
- ngx_http_variable_t *var, *v;
- ngx_http_ssi_command_t *cmd;
- ngx_http_ssi_main_conf_t *smcf;
-
- for (v = ngx_http_ssi_vars; v->name.len; v++) {
- var = ngx_http_add_variable(cf, &v->name, v->flags);
- if (var == NULL) {
- return NGX_ERROR;
- }
-
- var->get_handler = v->get_handler;
- var->data = v->data;
- }
-
- smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module);
-
- for (cmd = ngx_http_ssi_commands; cmd->name.len; cmd++) {
- rc = ngx_hash_add_key(&smcf->commands, &cmd->name, cmd,
- NGX_HASH_READONLY_KEY);
-
- if (rc == NGX_OK) {
- continue;
- }
-
- if (rc == NGX_BUSY) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
- "conflicting SSI command \"%V\"", &cmd->name);
- }
-
- return NGX_ERROR;
- }
-
- return NGX_OK;
-}
-
-
-static void *
-ngx_http_ssi_create_main_conf(ngx_conf_t *cf)
-{
- ngx_http_ssi_main_conf_t *smcf;
-
- smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_main_conf_t));
- if (smcf == NULL) {
- return NULL;
- }
-
- smcf->commands.pool = cf->pool;
- smcf->commands.temp_pool = cf->temp_pool;
-
- if (ngx_hash_keys_array_init(&smcf->commands, NGX_HASH_SMALL) != NGX_OK) {
- return NULL;
- }
-
- return smcf;
-}
-
-
-static char *
-ngx_http_ssi_init_main_conf(ngx_conf_t *cf, void *conf)
-{
- ngx_http_ssi_main_conf_t *smcf = conf;
-
- ngx_hash_init_t hash;
-
- hash.hash = &smcf->hash;
- hash.key = ngx_hash_key;
- hash.max_size = 1024;
- hash.bucket_size = ngx_cacheline_size;
- hash.name = "ssi_command_hash";
- hash.pool = cf->pool;
- hash.temp_pool = NULL;
-
- if (ngx_hash_init(&hash, smcf->commands.keys.elts,
- smcf->commands.keys.nelts)
- != NGX_OK)
- {
- return NGX_CONF_ERROR;
- }
-
- return NGX_CONF_OK;
-}
-
-
-static void *
-ngx_http_ssi_create_loc_conf(ngx_conf_t *cf)
-{
- ngx_http_ssi_loc_conf_t *slcf;
-
- slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssi_loc_conf_t));
- if (slcf == NULL) {
- return NULL;
- }
-
- /*
- * set by ngx_pcalloc():
- *
- * conf->types = { NULL };
- * conf->types_keys = NULL;
- */
-
- slcf->enable = NGX_CONF_UNSET;
- slcf->silent_errors = NGX_CONF_UNSET;
- slcf->ignore_recycled_buffers = NGX_CONF_UNSET;
- slcf->last_modified = NGX_CONF_UNSET;
-
- slcf->min_file_chunk = NGX_CONF_UNSET_SIZE;
- slcf->value_len = NGX_CONF_UNSET_SIZE;
-
- return slcf;
-}
-
-
-static char *
-ngx_http_ssi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
-{
- ngx_http_ssi_loc_conf_t *prev = parent;
- ngx_http_ssi_loc_conf_t *conf = child;
-
- ngx_conf_merge_value(conf->enable, prev->enable, 0);
- ngx_conf_merge_value(conf->silent_errors, prev->silent_errors, 0);
- ngx_conf_merge_value(conf->ignore_recycled_buffers,
- prev->ignore_recycled_buffers, 0);
- ngx_conf_merge_value(conf->last_modified, prev->last_modified, 0);
-
- ngx_conf_merge_size_value(conf->min_file_chunk, prev->min_file_chunk, 1024);
- ngx_conf_merge_size_value(conf->value_len, prev->value_len, 255);
-
- if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types,
- &prev->types_keys, &prev->types,
- ngx_http_html_default_types)
- != NGX_OK)
- {
- return NGX_CONF_ERROR;
- }
-
- return NGX_CONF_OK;
-}
-
-
-static ngx_int_t
-ngx_http_ssi_filter_init(ngx_conf_t *cf)
-{
- ngx_http_next_header_filter = ngx_http_top_header_filter;
- ngx_http_top_header_filter = ngx_http_ssi_header_filter;
-
- ngx_http_next_body_filter = ngx_http_top_body_filter;
- ngx_http_top_body_filter = ngx_http_ssi_body_filter;
-
- return NGX_OK;
-}