initial version of VSAP

Signed-off-by: Yu Ping <ping.yu@intel.com>
Change-Id: I04d9150f0c7607ba20de9096b452476eff1622fc

1 files changed, 331 insertions, 0 deletions

diff --git a/nginx/src/http/modules/ngx_http_gzip_static_module.c b/nginx/src/http/modules/ngx_http_gzip_static_module.c
new file mode 100644
index 0000000..7652a9a
--- /dev/null
+++ b/nginx/src/http/modules/ngx_http_gzip_static_module.c
@@ -0,0 +1,331 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+
+
+#define NGX_HTTP_GZIP_STATIC_OFF     0
+#define NGX_HTTP_GZIP_STATIC_ON      1
+#define NGX_HTTP_GZIP_STATIC_ALWAYS  2
+
+
+typedef struct {
+    ngx_uint_t  enable;
+} ngx_http_gzip_static_conf_t;
+
+
+static ngx_int_t ngx_http_gzip_static_handler(ngx_http_request_t *r);
+static void *ngx_http_gzip_static_create_conf(ngx_conf_t *cf);
+static char *ngx_http_gzip_static_merge_conf(ngx_conf_t *cf, void *parent,
+    void *child);
+static ngx_int_t ngx_http_gzip_static_init(ngx_conf_t *cf);
+
+
+static ngx_conf_enum_t  ngx_http_gzip_static[] = {
+    { ngx_string("off"), NGX_HTTP_GZIP_STATIC_OFF },
+    { ngx_string("on"), NGX_HTTP_GZIP_STATIC_ON },
+    { ngx_string("always"), NGX_HTTP_GZIP_STATIC_ALWAYS },
+    { ngx_null_string, 0 }
+};
+
+
+static ngx_command_t  ngx_http_gzip_static_commands[] = {
+
+    { ngx_string("gzip_static"),
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_enum_slot,
+      NGX_HTTP_LOC_CONF_OFFSET,
+      offsetof(ngx_http_gzip_static_conf_t, enable),
+      &ngx_http_gzip_static },
+
+      ngx_null_command
+};
+
+
+static ngx_http_module_t  ngx_http_gzip_static_module_ctx = {
+    NULL,                                  /* preconfiguration */
+    ngx_http_gzip_static_init,             /* postconfiguration */
+
+    NULL,                                  /* create main configuration */
+    NULL,                                  /* init main configuration */
+
+    NULL,                                  /* create server configuration */
+    NULL,                                  /* merge server configuration */
+
+    ngx_http_gzip_static_create_conf,      /* create location configuration */
+    ngx_http_gzip_static_merge_conf        /* merge location configuration */
+};
+
+
+ngx_module_t  ngx_http_gzip_static_module = {
+    NGX_MODULE_V1,
+    &ngx_http_gzip_static_module_ctx,      /* module context */
+    ngx_http_gzip_static_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_int_t
+ngx_http_gzip_static_handler(ngx_http_request_t *r)
+{
+    u_char                       *p;
+    size_t                        root;
+    ngx_str_t                     path;
+    ngx_int_t                     rc;
+    ngx_uint_t                    level;
+    ngx_log_t                    *log;
+    ngx_buf_t                    *b;
+    ngx_chain_t                   out;
+    ngx_table_elt_t              *h;
+    ngx_open_file_info_t          of;
+    ngx_http_core_loc_conf_t     *clcf;
+    ngx_http_gzip_static_conf_t  *gzcf;
+
+    if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
+        return NGX_DECLINED;
+    }
+
+    if (r->uri.data[r->uri.len - 1] == '/') {
+        return NGX_DECLINED;
+    }
+
+    gzcf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_static_module);
+
+    if (gzcf->enable == NGX_HTTP_GZIP_STATIC_OFF) {
+        return NGX_DECLINED;
+    }
+
+    if (gzcf->enable == NGX_HTTP_GZIP_STATIC_ON) {
+        rc = ngx_http_gzip_ok(r);
+
+    } else {
+        /* always */
+        rc = NGX_OK;
+    }
+
+    clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
+
+    if (!clcf->gzip_vary && rc != NGX_OK) {
+        return NGX_DECLINED;
+    }
+
+    log = r->connection->log;
+
+    p = ngx_http_map_uri_to_path(r, &path, &root, sizeof(".gz") - 1);
+    if (p == NULL) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    *p++ = '.';
+    *p++ = 'g';
+    *p++ = 'z';
+    *p = '\0';
+
+    path.len = p - path.data;
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0,
+                   "http filename: \"%s\"", path.data);
+
+    ngx_memzero(&of, sizeof(ngx_open_file_info_t));
+
+    of.read_ahead = clcf->read_ahead;
+    of.directio = clcf->directio;
+    of.valid = clcf->open_file_cache_valid;
+    of.min_uses = clcf->open_file_cache_min_uses;
+    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) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
+        != NGX_OK)
+    {
+        switch (of.err) {
+
+        case 0:
+            return NGX_HTTP_INTERNAL_SERVER_ERROR;
+
+        case NGX_ENOENT:
+        case NGX_ENOTDIR:
+        case NGX_ENAMETOOLONG:
+
+            return NGX_DECLINED;
+
+        case NGX_EACCES:
+#if (NGX_HAVE_OPENAT)
+        case NGX_EMLINK:
+        case NGX_ELOOP:
+#endif
+
+            level = NGX_LOG_ERR;
+            break;
+
+        default:
+
+            level = NGX_LOG_CRIT;
+            break;
+        }
+
+        ngx_log_error(level, log, of.err,
+                      "%s \"%s\" failed", of.failed, path.data);
+
+        return NGX_DECLINED;
+    }
+
+    if (gzcf->enable == NGX_HTTP_GZIP_STATIC_ON) {
+        r->gzip_vary = 1;
+
+        if (rc != NGX_OK) {
+            return NGX_DECLINED;
+        }
+    }
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd);
+
+    if (of.is_dir) {
+        ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir");
+        return NGX_DECLINED;
+    }
+
+#if !(NGX_WIN32) /* the not regular files are probably Unix specific */
+
+    if (!of.is_file) {
+        ngx_log_error(NGX_LOG_CRIT, log, 0,
+                      "\"%s\" is not a regular file", path.data);
+
+        return NGX_HTTP_NOT_FOUND;
+    }
+
+#endif
+
+    r->root_tested = !r->error_page;
+
+    rc = ngx_http_discard_request_body(r);
+
+    if (rc != NGX_OK) {
+        return rc;
+    }
+
+    log->action = "sending response to client";
+
+    r->headers_out.status = NGX_HTTP_OK;
+    r->headers_out.content_length_n = of.size;
+    r->headers_out.last_modified_time = of.mtime;
+
+    if (ngx_http_set_etag(r) != NGX_OK) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    if (ngx_http_set_content_type(r) != NGX_OK) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    h = ngx_list_push(&r->headers_out.headers);
+    if (h == NULL) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    h->hash = 1;
+    ngx_str_set(&h->key, "Content-Encoding");
+    ngx_str_set(&h->value, "gzip");
+    r->headers_out.content_encoding = h;
+
+    /* we need to allocate all before the header would be sent */
+
+    b = ngx_calloc_buf(r->pool);
+    if (b == NULL) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
+    if (b->file == NULL) {
+        return NGX_HTTP_INTERNAL_SERVER_ERROR;
+    }
+
+    rc = ngx_http_send_header(r);
+
+    if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
+        return rc;
+    }
+
+    b->file_pos = 0;
+    b->file_last = of.size;
+
+    b->in_file = b->file_last ? 1 : 0;
+    b->last_buf = (r == r->main) ? 1 : 0;
+    b->last_in_chain = 1;
+
+    b->file->fd = of.fd;
+    b->file->name = path;
+    b->file->log = log;
+    b->file->directio = of.is_directio;
+
+    out.buf = b;
+    out.next = NULL;
+
+    return ngx_http_output_filter(r, &out);
+}
+
+
+static void *
+ngx_http_gzip_static_create_conf(ngx_conf_t *cf)
+{
+    ngx_http_gzip_static_conf_t  *conf;
+
+    conf = ngx_palloc(cf->pool, sizeof(ngx_http_gzip_static_conf_t));
+    if (conf == NULL) {
+        return NULL;
+    }
+
+    conf->enable = NGX_CONF_UNSET_UINT;
+
+    return conf;
+}
+
+
+static char *
+ngx_http_gzip_static_merge_conf(ngx_conf_t *cf, void *parent, void *child)
+{
+    ngx_http_gzip_static_conf_t *prev = parent;
+    ngx_http_gzip_static_conf_t *conf = child;
+
+    ngx_conf_merge_uint_value(conf->enable, prev->enable,
+                              NGX_HTTP_GZIP_STATIC_OFF);
+
+    return NGX_CONF_OK;
+}
+
+
+static ngx_int_t
+ngx_http_gzip_static_init(ngx_conf_t *cf)
+{
+    ngx_http_handler_pt        *h;
+    ngx_http_core_main_conf_t  *cmcf;
+
+    cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
+
+    h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
+    if (h == NULL) {
+        return NGX_ERROR;
+    }
+
+    *h = ngx_http_gzip_static_handler;
+
+    return NGX_OK;
+}