changeset 15:cbb38b60495c

nginx-0.0.1-2002-09-18-20:32:22 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 18 Sep 2002 16:32:22 +0000
parents f8a0d0f31a24
children 6ce4755737b4
files src/http/modules/ngx_http_ssi_filter.c
diffstat 1 files changed, 93 insertions(+), 132 deletions(-) [+]
line wrap: on
line diff
--- a/src/http/modules/ngx_http_ssi_filter.c
+++ b/src/http/modules/ngx_http_ssi_filter.c
@@ -14,8 +14,8 @@ static void *ngx_http_ssi_filter_create_
 ngx_http_module_t  ngx_http_ssi_filter_module = {
     NGX_HTTP_MODULE,
     NULL,                                  /* create server config */
-    ngx_http_ssi_filter_create_conf,     /* create location config */
-    ngx_http_ssi_filter_commands,        /* module directives */
+    ngx_http_ssi_filter_create_conf,       /* create location config */
+    ngx_http_ssi_filter_commands,          /* module directives */
     NULL,                                  /* init module */
     NULL                                   /* init output body filter */
 };
@@ -23,10 +23,10 @@ ngx_http_module_t  ngx_http_ssi_filter_m
 
 static ngx_command_t ngx_http_ssi_filter_commands[] = {
 
-    {"ssi", ngx_conf_set_size_slot,
-     offsetof(ngx_http_write_filter_conf_t, buffer_output),
-     NGX_HTTP_LOC_CONF, NGX_CONF_TAKE1, 
-     "set write filter size to buffer output"},
+    {"ssi", ngx_conf_set_flag_slot,
+     offsetof(ngx_http_ssi_filter_conf_t, on),
+     NGX_HTTP_LOC_CONF, NGX_CONF_FLAG, 
+     "enable ssi filter"},
 
     {NULL}
 
@@ -35,8 +35,6 @@ static ngx_command_t ngx_http_ssi_filter
 
 int ngx_http_ssi_filter(ngx_http_request_t *r, ngx_chain_t *in)
 {
-    int    last;
-    off_t  size, flush;
     ngx_chain_t  *ch, **prev, *chain;
     ngx_http_ssi_filter_ctx_t  *ctx;
     ngx_http_ssi_filter_conf_t *conf;
@@ -53,89 +51,122 @@ int ngx_http_ssi_filter(ngx_http_request
     }
 
     state = ctx->state;
+    length = ctx->length;
 
     ch = in;
     p = ch->hunk->pos.mem; 
 
+    rc = ngx_http_ssi_parse(r, ctx, in);
+    if (rc == NGX_SSI_FOUND) {
+    }
+
+}
+
+
+static int ngx_http_ssi_parse(ngx_http_request_t *r,
+                              ngx_http_ssi_filter_ctx_t *ctx, ngx_chain_t *in)
+{
+    state = ctx->state;
+    length = ctx->length;
+
     for ( ;; ) {
 
         if (state == ssi_start_state) {
             for (/* void */ ; p < ch->hunk->last.mem; p++) {
                 if (*p == '<') {
                     state = ssi_exclam_state;
-                    saved_pos = p;
-                    saved_chain = ch;
+                    length = 1;
                     break;
                 }
             }
         }
 
         for (/* void */ ;
-             p < ch->hunk->last.mem && state > ssi_start_state;
+             p < ch->hunk->last.mem
+                 && (state > ssi_start_state && state < ssi_command_state)
              p++)
         {
-
-            if (*p == '<') {
-                state = ssi_exclam_state;
-                saved_pos = p;
-                saved_chain = ch;
-                continue;
-            }
-
             switch (state) {
 
             case ssi_exclam_state:
-                if (*p == '!') {
+                switch (*p) {
+
+                case '!':
                     state = ssi_dash1_state;
+                    length = 2;
+                    break;
 
-                else {
-                    state = ssi_ssi_state;
-                    saved_pos = NULL;
-                    saved_chain = NULL;
+                case '<':
+                    state = ssi_exclam_state;
+                    length = 1;
+                    break;
+
+                default:
+                    state = ssi_start_state;
+                    length = 0;
+                    break;
                 }
 
                 break;
 
             case ssi_dash1_state:
-                if (*p == '-') {
+                switch (*p) {
+
+                case '-':
                     state = ssi_dash2_state;
+                    length = 3;
+                    break;
 
-                else {
-                    state = ssi_ssi_state;
-                    saved_pos = NULL;
-                    saved_chain = NULL;
+                case '<':
+                    state = ssi_exclam_state;
+                    length = 1;
+                    break;
+
+                default:
+                    state = ssi_start_state;
+                    length = 0;
+                    break;
                 }
 
                 break;
 
             case ssi_dash2_state:
-                if (*p == '-') {
+                switch (*p) {
+
+                case '-':
                     state = ssi_sharp_state;
+                    length = 4;
+                    break;
 
-                else {
-                    state = ssi_ssi_state;
-                    saved_pos = NULL;
-                    saved_chain = NULL;
+                case '<':
+                    state = ssi_exclam_state;
+                    length = 1;
+                    break;
+
+                default:
+                    state = ssi_start_state;
+                    length = 0;
+                    break;
                 }
 
                 break;
 
             case ssi_sharp_state:
                 switch (*p) {
-                case '#':
-                    state = ssi_command_state;
-                    break;
 
-                case ' ':
-                case '\t':
-                case CR:
-                case LF:
+                case '#':
+                    ctx->state = ssi_command_state;
+                    ctx->length = 5;
+                    return NGX_SSI_FOUND;
+
+                case '<':
+                    state = ssi_exclam_state;
+                    length = 1;
                     break;
 
                 default:
-                    state = ssi_ssi_state;
-                    saved_pos = NULL;
-                    saved_chain = NULL;
+                    state = ssi_start_state;
+                    length = 0;
                     break;
                 }
 
@@ -143,6 +174,10 @@ int ngx_http_ssi_filter(ngx_http_request
             }
         }
 
+        if (state > ssi_start_state) {
+            ngx_add_hunk_to_chain(ch->hunk);
+        }
+
         ch = ch->next;
         if (ch == NULL) {
             ctx->state = state;
@@ -152,48 +187,24 @@ int ngx_http_ssi_filter(ngx_http_request
         p = ch->hunk->pos.mem; 
     }
 
-    for (p = saved_pos, ch = saved_chain;
-         ch;
-         ch = ch->next, p = ch->hunk->pos.mem)
-    {
-        ngx_memcpy(saved_line, p, ch->hunk->last.mem - p);
-        saved_size += ch->hunk->last.mem - p;
-        if (ch->next == NULL)
-             break;
-    }
+        if (state > ssi_start_state)
+            if (ngx_http_ssi_dup_hunk(r, ch->hunk) == NGX_ERROR)
+                return NGX_ERROR;
 
-
-
-
-
-
-
-
-
-
+}
 
 
-
-
-    for (/* void */; in; in = in->next) {
-
-        for (p = in->hunk->pos.mem;
-             in->hunk->pos.mem < in->hunk->last.mem;
-             p++)
-        {
-            switch (state) {
+static ngx_http_ssi_dup_hunk(ngx_http_request_t *r, ngx_hunk_t *hunk);
+{
+    new dup_hunk
+    set dup_hunk
+    ngx_add_hunk_to_chain dup_hunk
 
-            case ssi_start_state:
-                if (*p == '<') {
-                    state = ssi_exclam_state;
-                    save_line = p;
-                }
-                break;
-
-            case ssi_exclam_state:
-            }
-        }
-    }
+    ngx_test_null(ssi_hunk, ngx_push_array);
+    ssi_hunk->ssi_hunk = dup_hunk;
+    ssi_hunk->hunk = hunk;
+    ssi_hunk->pos = NULL;
+}
 
 
 
@@ -213,64 +224,14 @@ int ngx_http_ssi_filter(ngx_http_request
 
 
 
-    size = flush = 0;
-    last = 0;
-    prev = &ctx->out;
 
-    /* find size, flush point and last link of saved chain */
-    for (ch = ctx->out; ch; ch = ch->next) {
-        prev = &ch->next;
-        size += ch->hunk->last.file - ch->hunk->pos.file;
 
-        ngx_log_debug(r->connection->log, "old chunk: %x " QX_FMT " " QD_FMT _
-                      ch->hunk->type _ ch->hunk->pos.file _
-                      ch->hunk->last.file - ch->hunk->pos.file);
 
-        if (ch->hunk->type & NGX_HUNK_FLUSH|NGX_HUNK_RECYCLED)
-            flush = size;
-
-        if (ch->hunk->type & NGX_HUNK_LAST)
-            last = 1;
-    }
-
-    /* add new chain to existent one */
-    for (/* void */; in; in = in->next) {
-        ngx_test_null(ch, ngx_palloc(r->pool, sizeof(ngx_chain_t)), NGX_ERROR);
 
-        ch->hunk = in->hunk;
-        ch->next = NULL;
-        *prev = ch;
-        prev = &ch->next;
-        size += ch->hunk->last.file - ch->hunk->pos.file;
 
-        ngx_log_debug(r->connection->log, "new chunk: %x " QX_FMT " " QD_FMT _
-                      ch->hunk->type _ ch->hunk->pos.file _
-                      ch->hunk->last.file - ch->hunk->pos.file);
-
-        if (ch->hunk->type & NGX_HUNK_FLUSH|NGX_HUNK_RECYCLED)
-            flush = size;
-
-        if (ch->hunk->type & NGX_HUNK_LAST)
-            last = 1;
-    }
 
-    conf = (ngx_http_write_filter_conf_t *)
-                   ngx_get_module_loc_conf(r->main ? r->main : r,
-                                                ngx_http_write_filter_module);
-
-    if (!last && flush == 0 && size < conf->buffer_output)
-        return NGX_OK;
 
-    chain = ngx_event_write(r->connection, ctx->out, flush);
-    if (chain == (ngx_chain_t *) -1)
-        return NGX_ERROR;
 
-    ctx->out = chain;
-
-    ngx_log_debug(r->connection->log, "write filter %x" _ chain);
-
-    return (chain ? NGX_AGAIN : NGX_OK);
-}
 
 
 static void *ngx_http_ssi_filter_create_conf(ngx_pool_t *pool)