diff options
Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_static_module.c')
| -rw-r--r-- | app/nginx/src/http/modules/ngx_http_static_module.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_static_module.c b/app/nginx/src/http/modules/ngx_http_static_module.c new file mode 100644 index 0000000..f2435a7 --- /dev/null +++ b/app/nginx/src/http/modules/ngx_http_static_module.c @@ -0,0 +1,287 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> + + +static ngx_int_t ngx_http_static_handler(ngx_http_request_t *r); +static ngx_int_t ngx_http_static_init(ngx_conf_t *cf); + + +static ngx_http_module_t ngx_http_static_module_ctx = { + NULL, /* preconfiguration */ + ngx_http_static_init, /* postconfiguration */ + + NULL, /* create main configuration */ + NULL, /* init main configuration */ + + NULL, /* create server configuration */ + NULL, /* merge server configuration */ + + NULL, /* create location configuration */ + NULL /* merge location configuration */ +}; + + +ngx_module_t ngx_http_static_module = { + NGX_MODULE_V1, + &ngx_http_static_module_ctx, /* module context */ + NULL, /* 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_static_handler(ngx_http_request_t *r) +{ + u_char *last, *location; + size_t root, len; + 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_open_file_info_t of; + ngx_http_core_loc_conf_t *clcf; + + if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD|NGX_HTTP_POST))) { + return NGX_HTTP_NOT_ALLOWED; + } + + if (r->uri.data[r->uri.len - 1] == '/') { + return NGX_DECLINED; + } + + log = r->connection->log; + + /* + * ngx_http_map_uri_to_path() allocates memory for terminating '\0' + * so we do not need to reserve memory for '/' for possible redirect + */ + + last = ngx_http_map_uri_to_path(r, &path, &root, 0); + if (last == NULL) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + path.len = last - path.data; + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, + "http filename: \"%s\"", path.data); + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + 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: + + level = NGX_LOG_ERR; + rc = NGX_HTTP_NOT_FOUND; + break; + + case NGX_EACCES: +#if (NGX_HAVE_OPENAT) + case NGX_EMLINK: + case NGX_ELOOP: +#endif + + level = NGX_LOG_ERR; + rc = NGX_HTTP_FORBIDDEN; + break; + + default: + + level = NGX_LOG_CRIT; + rc = NGX_HTTP_INTERNAL_SERVER_ERROR; + break; + } + + if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { + ngx_log_error(level, log, of.err, + "%s \"%s\" failed", of.failed, path.data); + } + + return rc; + } + + r->root_tested = !r->error_page; + + 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"); + + ngx_http_clear_location(r); + + r->headers_out.location = ngx_list_push(&r->headers_out.headers); + if (r->headers_out.location == NULL) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + len = r->uri.len + 1; + + if (!clcf->alias && clcf->root_lengths == NULL && r->args.len == 0) { + location = path.data + clcf->root.len; + + *last = '/'; + + } else { + if (r->args.len) { + len += r->args.len + 1; + } + + location = ngx_pnalloc(r->pool, len); + if (location == NULL) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + last = ngx_copy(location, r->uri.data, r->uri.len); + + *last = '/'; + + if (r->args.len) { + *++last = '?'; + ngx_memcpy(++last, r->args.data, r->args.len); + } + } + + r->headers_out.location->hash = 1; + ngx_str_set(&r->headers_out.location->key, "Location"); + r->headers_out.location->value.len = len; + r->headers_out.location->value.data = location; + + return NGX_HTTP_MOVED_PERMANENTLY; + } + +#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 + + if (r->method == NGX_HTTP_POST) { + return NGX_HTTP_NOT_ALLOWED; + } + + 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; + } + + if (r != r->main && of.size == 0) { + return ngx_http_send_header(r); + } + + r->allow_ranges = 1; + + /* we need to allocate all before the header would be sent */ + + b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); + 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 ngx_int_t +ngx_http_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_static_handler; + + return NGX_OK; +} |