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nginx-0.0.1-2003-08-06-09:30:51 import
This commit is contained in:
Igor Sysoev
parent
044105067d
commit
7f4003a76a
@ -1,306 +1,79 @@
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_hunk.h>
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#include <ngx_event_write.h>
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#include <ngx_http.h>
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#include <ngx_http_config.h>
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static ngx_command_t ngx_http_ssi_filter_commands[];
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typedef struct {
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} ngx_http_ssi_filter_ctx_t;
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static void *ngx_http_ssi_filter_create_conf(ngx_pool_t *pool);
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ngx_http_module_t ngx_http_ssi_filter_module = {
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NGX_HTTP_MODULE,
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NULL, /* create server config */
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ngx_http_ssi_filter_create_conf, /* create location config */
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ngx_http_ssi_filter_commands, /* module directives */
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NULL, /* init module */
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NULL /* init output body filter */
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static int ngx_http_ssi_filter_init(ngx_cycle_t *cycle);
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static ngx_http_module_t ngx_http_ssi_filter_module_ctx = {
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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NULL, /* create location configuration */
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NULL, /* merge location configuration */
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};
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ngx_module_t ngx_http_ssi_filter_module = {
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NGX_MODULE,
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&ngx_http_ssi_filter_module_ctx, /* module context */
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NULL, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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ngx_http_ssi_filter_init, /* init module */
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NULL /* init child */
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};
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static ngx_command_t ngx_http_ssi_filter_commands[] = {
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{"ssi", ngx_conf_set_flag_slot,
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offsetof(ngx_http_ssi_filter_conf_t, on),
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NGX_HTTP_LOC_CONF, NGX_CONF_FLAG,
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"enable ssi filter"},
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{NULL}
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};
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static int (*next_header_filter) (ngx_http_request_t *r);
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static int (*next_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch);
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int ngx_http_ssi_filter(ngx_http_request_t *r, ngx_chain_t *in)
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static int ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
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{
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ngx_chain_t *ch, **prev, *chain;
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ngx_http_ssi_filter_ctx_t *ctx;
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ngx_http_ssi_filter_conf_t *conf;
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if (in == NULL)
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return next_filter;
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}
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ctx = (ngx_http_ssi_filter_ctx_t *)
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ngx_get_module_ctx(r, ngx_http_ssi_filter_module);
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if (ctx == NULL) {
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ngx_http_create_ctx(r, ctx,
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ngx_http_ssi_filter_module,
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sizeof(ngx_http_ssi_filter_ctx_t));
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ctx->state = &ssi_start;
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ctx->handler = ngx_http_ssi_find_start;
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}
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static void ngx_http_ssi_parse()
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{
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for ( ) {
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switch (state) {
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case ssi_start_state:
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ch = in;
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ctx->start = ctx->pos = ch->hunk->pos.mem;
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/* tight loop */
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while (p < h->last) {
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if (*p++ == '<') {
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state = ssi_comment_state;
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length = 1;
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break;
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}
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}
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for ( ;; ) {
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if (ctx->handler(r, ctx, ch) == NGX_ERROR)
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return NGX_ERROR;
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/* fall through */
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if (ctx->pos + ctx->length == ch->hunk->last.mem) {
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ch = ch->next;
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if (ch == NULL)
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break;
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case ssi_comment_state:
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break;
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ctx->start = ctx->pos = ch->hunk->pos.mem;
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}
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}
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}
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static int ngx_http_ssi_find_start(ngx_http_request_t *r,
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ngx_http_ssi_filter_ctx_t *ctx,
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ngx_chain_t *ch)
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static int ngx_http_ssi_filter_init(ngx_cycle_t *cycle)
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{
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ngx_http_ssi_parse(r, ctx, ch->hunk);
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next_header_filter = ngx_http_top_header_filter;
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ngx_http_top_header_filter = ngx_http_ssi_header_filter;
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if (ctx->state == ssi_command_state
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|| (ctx->length > 0 && ch->next == NULL)
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|| ctx->hunk_with_ssi)
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{
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ngx_test_null(h, ngx_palloc(r->pool, sizeof(ngx_hunk_t)), NGX_ERROR);
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#if !(HAVE_OFFSET_EQUAL_PTR)
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h->pos.file = h->last.file = 0;
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#endif
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h->pre_start = h->start = h->pos.mem = ctx->start;
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h->post_end = h->end = h->last.mem = ctx->pos;
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h->type = NGX_HUNK_TEMP;
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h->tag = 0;
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h->file = NULL;
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ngx_add_hunk_to_chain(ctx->last, h, r->pool, NGX_ERROR);
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ngx_test_null(ssi_hunk, ngx_push_array(ctx->ssi_hunks), NGX_ERROR);
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ssi_hunk->ssi_hunk = h;
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ssi_hunk->hunk = ch->hunk;
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ssi_hunk->pos = NULL;
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}
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if (ctx->state == ssi_command_state)
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ctx->handler = ngx_http_ssi_find_command;
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}
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next_body_filter = ngx_http_top_body_filter;
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ngx_http_top_body_filter = ngx_http_ssi_body_filter;
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return NGX_OK;
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}
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static int ngx_http_ssi_find_command(ngx_http_request_t *r,
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ngx_http_ssi_filter_ctx_t *ctx,
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ngx_chain_t *ch)
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{
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ngx_http_ssi_parse_command(r, ctx, ch->hunk);
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}
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static char ssi_start[] = "<!--#";
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static char ssi_include[] = "include";
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static ssi_parser_t ssi_pre_command_state[] = {
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{ 1, (char *) ' ', ssi_pre_command_state, NULL },
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{ 7, "include", ssi_command_state, ssi_include_state },
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{ 4, "random", ssi_command_state, NULL },
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{ 0, NULL, ssi_error_state }
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};
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static ssi_parser_t ssi_include_state[] = {
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{ 1, (char *) ' ', ssi_include_state, NULL },
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{ 7, "virtual", ssi_equal_state, offsetof(ssi_include_t, virtual) },
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{ 0, NULL, ssi_error_state }
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};
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static ssi_parser_t ssi_equal_state[] = {
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{ 1, (char *) ' ', ssi_equal_state, NULL },
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{ 1, (char *) '=', ssi_param_state, NULL },
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};
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static char ssi_echo[] = "echo";
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static void ngx_http_ssi_parse(ngx_http_request_t *r,
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ngx_http_ssi_filter_ctx_t *ctx,
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ngx_hunk_t *hunk)
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for ( ;; ) {
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for (/* void */ ; p < ch->hunk->last.mem; p++) {
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switch (state) {
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case ssi_start_state:
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/* tight loop */
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while (p < ch->hunk->last.mem) {
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if (*p++ == '<') {
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state = ssi_comment_state;
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length = 1;
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break;
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}
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}
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/* fall through */
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case ssi_comment_state:
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if (*p == ssi_start[length]) {
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length++;
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} else {
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length = 0;
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flush = 1;
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state = ssi_start_state;
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}
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if (length < 6)
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continue;
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state = ssi_space_before_command_state;
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/* fall through */
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case ssi_space_before_command_state:
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if (*p == ' ' || *p == '\t' || *p == CR || *p == LF)
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continue;
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state = ssi_command_state;
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/* fall through */
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case ssi_choose_command_state:
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for (i = 0; ctx->name[i].len; i++) {
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if (*p == ctx->name[i].name[0]) {
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state = choos[i].state;
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}
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}
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case ssi_command_state:
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if (*p == ssi_include[n];
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n++;
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break;
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}
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}
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if (length == 6
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|| (length > 0 && ch->next == NULL)
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|| hunk_with_ssi) {
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if (ctx->saved > 0 && flush) {
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add saved
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ctx->saved = 0;
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}
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for (c = ctx->in; c != hunk; c = c->next) {
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ngx_add_hunk_to_chain(ctx->last, c->hunk,
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r->pool, NGX_ERROR);
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}
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add duped;
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push duped_hunk, hunk, NULL;
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n = length - (hunk->last.mem - pos);
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for (c = hunk; c; c->next) {
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if (n > c->hunk->last.mem - c->hunk->pos.mem) {
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n -= c->hunk->last.mem - c->hunk->pos.mem;
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push NULL, c->hunk, NULL;
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}
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}
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ctx->in = c;
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}
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}
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} else {
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for (/* void */ ; p < ch->hunk->last.mem; p++) {
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if (*p == ' ' || *p == '\t' || *p == CR || *P == LF)
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continue;
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ctx->state = ssi_command_state;
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break;
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}
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if (
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}
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}
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static void *ngx_http_ssi_filter_create_conf(ngx_pool_t *pool)
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{
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ngx_http_ssi_filter_conf_t *conf;
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ngx_test_null(conf,
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ngx_palloc(pool, sizeof(ngx_http_ssi_filter_conf_t)),
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NULL);
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conf->buffer_output = NGX_CONF_UNSET;
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return conf;
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}
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