244 lines
6.9 KiB
C
244 lines
6.9 KiB
C
/*
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* Copyright (C) Igor Sysoev
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* Copyright (c) 2010-2025 Asynchronous B.V.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "StaticContentHandler.h"
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#include "ngx_http_passenger_module.h"
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static void
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set_request_extension(ngx_http_request_t *r, ngx_str_t *filename) {
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u_char *tmp;
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/* Scan filename from the right until we've found a slash or a dot. */
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tmp = filename->data + filename->len - 1;
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while (tmp >= filename->data && *tmp != '/' && *tmp != '.') {
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tmp--;
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}
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if (tmp >= filename->data && *tmp == '.') {
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/* We found a dot, and until now we haven't seen any slashes.
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* So we know that this is the filename's extension.
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*/
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tmp++;
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r->exten.data = tmp;
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r->exten.len = filename->len - (tmp - filename->data);
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}
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}
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ngx_int_t
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passenger_static_content_handler(ngx_http_request_t *r, ngx_str_t *filename)
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{
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u_char *last, *location;
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size_t len;
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ngx_int_t rc;
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ngx_uint_t level;
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ngx_log_t *log;
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ngx_buf_t *b;
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ngx_chain_t out;
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ngx_open_file_info_t of;
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ngx_http_core_loc_conf_t *clcf;
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if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD|NGX_HTTP_POST))) {
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return NGX_HTTP_NOT_ALLOWED;
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}
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if (r->uri.data[r->uri.len - 1] == '/') {
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return NGX_DECLINED;
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}
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log = r->connection->log;
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0,
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"http filename: \"%s\"", filename->data);
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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ngx_memzero(&of, sizeof(ngx_open_file_info_t));
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of.read_ahead = clcf->read_ahead;
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of.directio = clcf->directio;
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of.valid = clcf->open_file_cache_valid;
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of.min_uses = clcf->open_file_cache_min_uses;
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of.errors = clcf->open_file_cache_errors;
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of.events = clcf->open_file_cache_events;
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if (ngx_open_cached_file(clcf->open_file_cache, filename, &of, r->pool)
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!= NGX_OK)
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{
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switch (of.err) {
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case 0:
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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case NGX_ENOENT:
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case NGX_ENOTDIR:
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case NGX_ENAMETOOLONG:
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_NOT_FOUND;
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break;
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case NGX_EACCES:
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_FORBIDDEN;
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break;
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default:
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level = NGX_LOG_CRIT;
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rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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break;
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}
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if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) {
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ngx_log_error(level, log, of.err,
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ngx_open_file_n " \"%s\" failed", filename->data);
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}
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return rc;
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}
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r->root_tested = !r->error_page;
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd);
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if (of.is_dir) {
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ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir");
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r->headers_out.location = ngx_palloc(r->pool, sizeof(ngx_table_elt_t));
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if (r->headers_out.location == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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len = r->uri.len + 1;
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if (!clcf->alias && clcf->root_lengths == NULL && r->args.len == 0) {
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location = filename->data + clcf->root.len;
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} else {
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if (r->args.len) {
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len += r->args.len + 1;
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}
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location = ngx_pnalloc(r->pool, len);
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if (location == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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last = ngx_copy(location, r->uri.data, r->uri.len);
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*last = '/';
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if (r->args.len) {
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*++last = '?';
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ngx_memcpy(++last, r->args.data, r->args.len);
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}
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}
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/*
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* we do not need to set the r->headers_out.location->hash and
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* r->headers_out.location->key fields
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*/
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r->headers_out.location->value.len = len;
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r->headers_out.location->value.data = location;
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return NGX_HTTP_MOVED_PERMANENTLY;
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}
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#if !(NGX_WIN32) /* the not regular files are probably Unix specific */
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if (!of.is_file) {
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ngx_log_error(NGX_LOG_CRIT, log, 0,
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"\"%s\" is not a regular file", filename->data);
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return NGX_HTTP_NOT_FOUND;
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}
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#endif
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if (r->method & NGX_HTTP_POST) {
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return NGX_HTTP_NOT_ALLOWED;
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}
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rc = ngx_http_discard_request_body(r);
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if (rc != NGX_OK) {
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return rc;
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}
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log->action = "sending response to client";
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r->headers_out.status = NGX_HTTP_OK;
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r->headers_out.content_length_n = of.size;
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r->headers_out.last_modified_time = of.mtime;
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set_request_extension(r, filename);
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if (ngx_http_set_content_type(r) != NGX_OK) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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if (r != r->main && of.size == 0) {
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return ngx_http_send_header(r);
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}
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r->allow_ranges = 1;
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/* we need to allocate all before the header would be sent */
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b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
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if (b == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
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if (b->file == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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rc = ngx_http_send_header(r);
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if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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return rc;
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}
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b->file_pos = 0;
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b->file_last = of.size;
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b->in_file = b->file_last ? 1: 0;
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b->last_buf = (r == r->main) ? 1: 0;
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b->last_in_chain = 1;
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b->file->fd = of.fd;
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b->file->name = *filename;
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b->file->log = log;
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b->file->directio = of.is_directio;
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out.buf = b;
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out.next = NULL;
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return ngx_http_output_filter(r, &out);
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}
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