mirror of
https://github.com/nginx/nginx.git
synced 2024-12-17 15:17:48 +08:00
4ecb4d721d
*) Feature: the -v switch.
*) Bugfix: the segmentation fault may occurred if the SSI page has
remote subrequests.
*) Bugfix: in FastCGI handling.
*) Bugfix: if the perl modules path was not set using
--with-perl_modules_path=PATH or the "perl_modules", then the
segmentation fault was occurred.
450 lines
12 KiB
C
450 lines
12 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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#define NGX_HTTP_DAV_OFF 2
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typedef struct {
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ngx_uint_t methods;
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ngx_flag_t create_full_put_path;
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} ngx_http_dav_loc_conf_t;
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static ngx_int_t ngx_http_dav_handler(ngx_http_request_t *r);
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static void ngx_http_dav_put_handler(ngx_http_request_t *r);
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static ngx_int_t ngx_http_dav_error(ngx_http_request_t *, ngx_err_t err,
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ngx_int_t not_found, char *failed, u_char *path);
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static ngx_int_t ngx_http_dav_location(ngx_http_request_t *r, u_char *path);
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static void *ngx_http_dav_create_loc_conf(ngx_conf_t *cf);
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static char *ngx_http_dav_merge_loc_conf(ngx_conf_t *cf,
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void *parent, void *child);
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static ngx_int_t ngx_http_dav_init(ngx_cycle_t *cycle);
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static ngx_conf_bitmask_t ngx_http_dav_methods_mask[] = {
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{ ngx_string("off"), NGX_HTTP_DAV_OFF },
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{ ngx_string("put"), NGX_HTTP_PUT },
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{ ngx_string("delete"), NGX_HTTP_DELETE },
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{ ngx_string("mkcol"), NGX_HTTP_MKCOL },
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{ ngx_null_string, 0 }
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};
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static ngx_command_t ngx_http_dav_commands[] = {
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{ ngx_string("dav_methods"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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ngx_conf_set_bitmask_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_http_dav_loc_conf_t, methods),
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&ngx_http_dav_methods_mask },
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{ ngx_string("create_full_put_path"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_http_dav_loc_conf_t, create_full_put_path),
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NULL },
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ngx_null_command
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};
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ngx_http_module_t ngx_http_dav_module_ctx = {
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NULL, /* preconfiguration */
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NULL, /* postconfiguration */
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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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ngx_http_dav_create_loc_conf, /* create location configuration */
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ngx_http_dav_merge_loc_conf /* merge location configuration */
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};
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ngx_module_t ngx_http_dav_module = {
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NGX_MODULE_V1,
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&ngx_http_dav_module_ctx, /* module context */
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ngx_http_dav_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init master */
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ngx_http_dav_init, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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static ngx_int_t
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ngx_http_dav_handler(ngx_http_request_t *r)
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{
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char *failed;
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ngx_int_t rc;
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ngx_str_t path;
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ngx_file_info_t fi;
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ngx_http_dav_loc_conf_t *dlcf;
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/* TODO: Win32 */
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if (r->zero_in_uri) {
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return NGX_DECLINED;
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}
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dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
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if (!(r->method & dlcf->methods)) {
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return NGX_DECLINED;
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}
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switch (r->method) {
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case NGX_HTTP_PUT:
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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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r->request_body_in_file_only = 1;
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r->request_body_in_persistent_file = 1;
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r->request_body_delete_incomplete_file = 1;
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r->request_body_file_group_access = 1;
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r->request_body_file_log_level = 0;
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rc = ngx_http_read_client_request_body(r, ngx_http_dav_put_handler);
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if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
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return rc;
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}
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return NGX_DONE;
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case NGX_HTTP_DELETE:
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if (r->headers_in.content_length_n > 0) {
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return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
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}
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rc = ngx_http_discard_body(r);
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if (rc != NGX_OK && rc != NGX_AGAIN) {
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return rc;
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}
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ngx_http_map_uri_to_path(r, &path, 0);
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http delete filename: \"%s\"", path.data);
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if (ngx_file_info(path.data, &fi) != -1) {
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if (ngx_is_dir(&fi)) {
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if (r->uri.data[r->uri.len - 1] != '/'
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|| r->headers_in.depth == NULL
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|| r->headers_in.depth->value.len != sizeof("infinity") - 1
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|| ngx_strcmp(r->headers_in.depth->value.data, "infinity")
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!= 0)
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{
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return NGX_HTTP_BAD_REQUEST;
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}
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if (ngx_delete_dir(path.data) != NGX_FILE_ERROR) {
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return NGX_HTTP_NO_CONTENT;
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}
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failed = ngx_delete_dir_n;
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} else {
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if (r->uri.data[r->uri.len - 1] == '/') {
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return NGX_HTTP_BAD_REQUEST;
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}
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if (r->headers_in.depth
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&& r->headers_in.depth->value.len == 1
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&& r->headers_in.depth->value.data[0] == '1')
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{
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return NGX_HTTP_BAD_REQUEST;
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}
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if (ngx_delete_file(path.data) != NGX_FILE_ERROR) {
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return NGX_HTTP_NO_CONTENT;
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}
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failed = ngx_delete_file_n;
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}
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} else {
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failed = ngx_file_info_n;
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}
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return ngx_http_dav_error(r, ngx_errno, NGX_HTTP_NOT_FOUND, failed,
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path.data);
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case NGX_HTTP_MKCOL:
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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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if (r->headers_in.content_length_n > 0) {
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return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
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}
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rc = ngx_http_discard_body(r);
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if (rc != NGX_OK && rc != NGX_AGAIN) {
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return rc;
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}
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ngx_http_map_uri_to_path(r, &path, 0);
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http mkcol path: \"%s\"", path.data);
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if (ngx_create_dir(path.data) != NGX_FILE_ERROR) {
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if (ngx_http_dav_location(r, path.data) != NGX_OK) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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return NGX_HTTP_CREATED;
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}
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return ngx_http_dav_error(r, ngx_errno, NGX_HTTP_CONFLICT,
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ngx_create_dir_n, path.data);
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}
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return NGX_DECLINED;
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}
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static void
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ngx_http_dav_put_handler(ngx_http_request_t *r)
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{
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ngx_err_t err;
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ngx_str_t *temp, path;
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ngx_uint_t status;
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ngx_file_info_t fi;
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ngx_http_dav_loc_conf_t *dlcf;
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ngx_http_map_uri_to_path(r, &path, 0);
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http put filename: \"%s\"", path.data);
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temp = &r->request_body->temp_file->file.name;
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if (ngx_file_info(path.data, &fi) == -1) {
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status = NGX_HTTP_CREATED;
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} else {
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status = NGX_HTTP_NO_CONTENT;
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}
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if (ngx_is_dir(&fi)) {
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ngx_http_finalize_request(r, NGX_HTTP_CONFLICT);
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return;
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}
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if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
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goto ok;
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}
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err = ngx_errno;
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if (err == NGX_ENOENT) {
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dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module);
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if (dlcf->create_full_put_path) {
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err = ngx_create_full_path(path.data);
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if (err == 0) {
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if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
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goto ok;
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}
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err = ngx_errno;
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}
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}
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}
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#if (NGX_WIN32)
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if (err == NGX_EEXIST) {
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if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) {
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if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
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goto ok;
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}
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}
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err = ngx_errno;
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}
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#endif
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ngx_http_finalize_request(r, ngx_http_dav_error(r, err, NGX_HTTP_CONFLICT,
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ngx_rename_file_n,
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path.data));
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return;
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ok:
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if (status == NGX_HTTP_CREATED) {
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if (ngx_http_dav_location(r, path.data) != NGX_OK) {
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ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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return;
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}
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r->headers_out.content_length_n = 0;
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}
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r->headers_out.status = status;
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r->header_only = 1;
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ngx_http_finalize_request(r, ngx_http_send_header(r));
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return;
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}
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static ngx_int_t
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ngx_http_dav_error(ngx_http_request_t *r, ngx_err_t err, ngx_int_t not_found,
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char *failed, u_char *path)
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{
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ngx_int_t rc;
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ngx_uint_t level;
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if (err == NGX_ENOENT || err == NGX_ENOTDIR || err == NGX_ENAMETOOLONG) {
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level = NGX_LOG_ERR;
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rc = not_found;
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} else if (err == NGX_EACCES || err == NGX_EPERM) {
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_FORBIDDEN;
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} else if (err == NGX_EEXIST) {
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_NOT_ALLOWED;
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} else if (err == NGX_ENOSPC) {
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level = NGX_LOG_CRIT;
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rc = NGX_HTTP_INSUFFICIENT_STORAGE;
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} else {
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level = NGX_LOG_CRIT;
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rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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ngx_log_error(level, r->connection->log, err,
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"%s \"%s\" failed", failed, path);
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return rc;
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}
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static ngx_int_t
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ngx_http_dav_location(ngx_http_request_t *r, u_char *path)
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{
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u_char *location;
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ngx_http_core_loc_conf_t *clcf;
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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_ERROR;
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}
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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if (!clcf->alias && clcf->root_lengths == NULL) {
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location = path + clcf->root.len;
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} else {
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location = ngx_palloc(r->pool, r->uri.len);
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if (location == NULL) {
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return NGX_ERROR;
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}
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ngx_memcpy(location, r->uri.data, r->uri.len);
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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 = r->uri.len;
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r->headers_out.location->value.data = location;
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return NGX_OK;
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}
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static void *
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ngx_http_dav_create_loc_conf(ngx_conf_t *cf)
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{
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ngx_http_dav_loc_conf_t *conf;
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conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_dav_loc_conf_t));
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if (conf == NULL) {
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return NGX_CONF_ERROR;
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}
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/*
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* set by ngx_pcalloc():
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*
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* conf->methods = 0;
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*/
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conf->create_full_put_path = NGX_CONF_UNSET;
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return conf;
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}
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static char *
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ngx_http_dav_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_http_dav_loc_conf_t *prev = parent;
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ngx_http_dav_loc_conf_t *conf = child;
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ngx_conf_merge_bitmask_value(conf->methods, prev->methods,
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(NGX_CONF_BITMASK_SET|NGX_HTTP_DAV_OFF));
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ngx_conf_merge_value(conf->create_full_put_path, prev->create_full_put_path,
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0);
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return NGX_CONF_OK;
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}
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static ngx_int_t
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ngx_http_dav_init(ngx_cycle_t *cycle)
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{
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ngx_http_handler_pt *h;
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ngx_http_core_main_conf_t *cmcf;
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cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
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h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
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if (h == NULL) {
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return NGX_ERROR;
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}
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*h = ngx_http_dav_handler;
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return NGX_OK;
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}
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