Mercurial > hg > nginx-vendor-current
view src/http/modules/ngx_http_dav_module.c @ 196:8759b346e431 NGINX_0_3_45
nginx 0.3.45
*) Feature: the "ssl_verify_client", "ssl_verify_depth", and
"ssl_client_certificate" directives.
*) Change: the $request_method variable now returns the main request
method.
*) Change: the ° symbol codes were changed in koi-win conversion
table.
*) Feature: the euro и N symbols were added to koi-win conversion table.
*) Bugfix: if nginx distributed the requests among several backends and
some backend failed, then requests intended for this backend was
directed to one live backend only instead of being distributed among
the rest.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Sat, 06 May 2006 00:00:00 +0400 |
parents | af37b7cb6698 |
children | 14050d2bec9b |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #define NGX_HTTP_DAV_OFF 2 typedef struct { ngx_uint_t methods; ngx_flag_t create_full_put_path; } ngx_http_dav_loc_conf_t; static ngx_int_t ngx_http_dav_handler(ngx_http_request_t *r); static void ngx_http_dav_put_handler(ngx_http_request_t *r); static ngx_int_t ngx_http_dav_error(ngx_http_request_t *, ngx_err_t err, ngx_int_t not_found, char *failed, u_char *path); static ngx_int_t ngx_http_dav_location(ngx_http_request_t *r, u_char *path); static void *ngx_http_dav_create_loc_conf(ngx_conf_t *cf); static char *ngx_http_dav_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child); static ngx_int_t ngx_http_dav_init(ngx_cycle_t *cycle); static ngx_conf_bitmask_t ngx_http_dav_methods_mask[] = { { ngx_string("off"), NGX_HTTP_DAV_OFF }, { ngx_string("put"), NGX_HTTP_PUT }, { ngx_string("delete"), NGX_HTTP_DELETE }, { ngx_string("mkcol"), NGX_HTTP_MKCOL }, { ngx_null_string, 0 } }; static ngx_command_t ngx_http_dav_commands[] = { { ngx_string("dav_methods"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_dav_loc_conf_t, methods), &ngx_http_dav_methods_mask }, { ngx_string("create_full_put_path"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_dav_loc_conf_t, create_full_put_path), NULL }, ngx_null_command }; ngx_http_module_t ngx_http_dav_module_ctx = { NULL, /* preconfiguration */ NULL, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ ngx_http_dav_create_loc_conf, /* create location configuration */ ngx_http_dav_merge_loc_conf /* merge location configuration */ }; ngx_module_t ngx_http_dav_module = { NGX_MODULE_V1, &ngx_http_dav_module_ctx, /* module context */ ngx_http_dav_commands, /* module directives */ NGX_HTTP_MODULE, /* module type */ NULL, /* init master */ ngx_http_dav_init, /* 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_dav_handler(ngx_http_request_t *r) { char *failed; ngx_int_t rc; ngx_str_t path; ngx_file_info_t fi; ngx_http_dav_loc_conf_t *dlcf; /* TODO: Win32 */ if (r->zero_in_uri) { return NGX_DECLINED; } dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module); if (!(r->method & dlcf->methods)) { return NGX_DECLINED; } switch (r->method) { case NGX_HTTP_PUT: if (r->uri.data[r->uri.len - 1] == '/') { return NGX_DECLINED; } r->request_body_in_file_only = 1; r->request_body_in_persistent_file = 1; r->request_body_delete_incomplete_file = 1; r->request_body_file_group_access = 1; r->request_body_file_log_level = 0; rc = ngx_http_read_client_request_body(r, ngx_http_dav_put_handler); if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { return rc; } return NGX_DONE; case NGX_HTTP_DELETE: if (r->headers_in.content_length_n > 0) { return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } rc = ngx_http_discard_body(r); if (rc != NGX_OK && rc != NGX_AGAIN) { return rc; } ngx_http_map_uri_to_path(r, &path, 0); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http delete filename: \"%s\"", path.data); if (ngx_file_info(path.data, &fi) != -1) { if (ngx_is_dir(&fi)) { if (r->uri.data[r->uri.len - 1] != '/' || r->headers_in.depth == NULL || r->headers_in.depth->value.len != sizeof("infinity") - 1 || ngx_strcmp(r->headers_in.depth->value.data, "infinity") != 0) { return NGX_HTTP_BAD_REQUEST; } if (ngx_delete_dir(path.data) != NGX_FILE_ERROR) { return NGX_HTTP_NO_CONTENT; } failed = ngx_delete_dir_n; } else { if (r->uri.data[r->uri.len - 1] == '/') { return NGX_HTTP_BAD_REQUEST; } if (r->headers_in.depth && r->headers_in.depth->value.len == 1 && r->headers_in.depth->value.data[0] == '1') { return NGX_HTTP_BAD_REQUEST; } if (ngx_delete_file(path.data) != NGX_FILE_ERROR) { return NGX_HTTP_NO_CONTENT; } failed = ngx_delete_file_n; } } else { failed = ngx_file_info_n; } return ngx_http_dav_error(r, ngx_errno, NGX_HTTP_NOT_FOUND, failed, path.data); case NGX_HTTP_MKCOL: if (r->uri.data[r->uri.len - 1] != '/') { return NGX_DECLINED; } if (r->headers_in.content_length_n > 0) { return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } rc = ngx_http_discard_body(r); if (rc != NGX_OK && rc != NGX_AGAIN) { return rc; } ngx_http_map_uri_to_path(r, &path, 0); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http mkcol path: \"%s\"", path.data); if (ngx_create_dir(path.data) != NGX_FILE_ERROR) { if (ngx_http_dav_location(r, path.data) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } return NGX_HTTP_CREATED; } return ngx_http_dav_error(r, ngx_errno, NGX_HTTP_CONFLICT, ngx_create_dir_n, path.data); } return NGX_DECLINED; } static void ngx_http_dav_put_handler(ngx_http_request_t *r) { ngx_err_t err; ngx_str_t *temp, path; ngx_uint_t status; ngx_file_info_t fi; ngx_http_dav_loc_conf_t *dlcf; ngx_http_map_uri_to_path(r, &path, 0); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http put filename: \"%s\"", path.data); temp = &r->request_body->temp_file->file.name; if (ngx_file_info(path.data, &fi) == -1) { status = NGX_HTTP_CREATED; } else { status = NGX_HTTP_NO_CONTENT; } if (ngx_is_dir(&fi)) { ngx_http_finalize_request(r, NGX_HTTP_CONFLICT); return; } if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { goto ok; } err = ngx_errno; if (err == NGX_ENOENT) { dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module); if (dlcf->create_full_put_path) { err = ngx_create_full_path(path.data); if (err == 0) { if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { goto ok; } err = ngx_errno; } } } #if (NGX_WIN32) if (err == NGX_EEXIST) { if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) { if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { goto ok; } } err = ngx_errno; } #endif ngx_http_finalize_request(r, ngx_http_dav_error(r, err, NGX_HTTP_CONFLICT, ngx_rename_file_n, path.data)); return; ok: if (status == NGX_HTTP_CREATED) { if (ngx_http_dav_location(r, path.data) != NGX_OK) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return; } r->headers_out.content_length_n = 0; } r->headers_out.status = status; r->header_only = 1; ngx_http_finalize_request(r, ngx_http_send_header(r)); return; } static ngx_int_t ngx_http_dav_error(ngx_http_request_t *r, ngx_err_t err, ngx_int_t not_found, char *failed, u_char *path) { ngx_int_t rc; ngx_uint_t level; if (err == NGX_ENOENT || err == NGX_ENOTDIR || err == NGX_ENAMETOOLONG) { level = NGX_LOG_ERR; rc = not_found; } else if (err == NGX_EACCES || err == NGX_EPERM) { level = NGX_LOG_ERR; rc = NGX_HTTP_FORBIDDEN; } else if (err == NGX_EEXIST) { level = NGX_LOG_ERR; rc = NGX_HTTP_NOT_ALLOWED; } else if (err == NGX_ENOSPC) { level = NGX_LOG_CRIT; rc = NGX_HTTP_INSUFFICIENT_STORAGE; } else { level = NGX_LOG_CRIT; rc = NGX_HTTP_INTERNAL_SERVER_ERROR; } ngx_log_error(level, r->connection->log, err, "%s \"%s\" failed", failed, path); return rc; } static ngx_int_t ngx_http_dav_location(ngx_http_request_t *r, u_char *path) { u_char *location; ngx_http_core_loc_conf_t *clcf; r->headers_out.location = ngx_palloc(r->pool, sizeof(ngx_table_elt_t)); if (r->headers_out.location == NULL) { return NGX_ERROR; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (!clcf->alias && clcf->root_lengths == NULL) { location = path + clcf->root.len; } else { location = ngx_palloc(r->pool, r->uri.len); if (location == NULL) { return NGX_ERROR; } ngx_memcpy(location, r->uri.data, r->uri.len); } /* * we do not need to set the r->headers_out.location->hash and * r->headers_out.location->key fields */ r->headers_out.location->value.len = r->uri.len; r->headers_out.location->value.data = location; return NGX_OK; } static void * ngx_http_dav_create_loc_conf(ngx_conf_t *cf) { ngx_http_dav_loc_conf_t *conf; conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_dav_loc_conf_t)); if (conf == NULL) { return NGX_CONF_ERROR; } /* * set by ngx_pcalloc(): * * conf->methods = 0; */ conf->create_full_put_path = NGX_CONF_UNSET; return conf; } static char * ngx_http_dav_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_http_dav_loc_conf_t *prev = parent; ngx_http_dav_loc_conf_t *conf = child; ngx_conf_merge_bitmask_value(conf->methods, prev->methods, (NGX_CONF_BITMASK_SET|NGX_HTTP_DAV_OFF)); ngx_conf_merge_value(conf->create_full_put_path, prev->create_full_put_path, 0); return NGX_CONF_OK; } static ngx_int_t ngx_http_dav_init(ngx_cycle_t *cycle) { ngx_http_handler_pt *h; ngx_http_core_main_conf_t *cmcf; cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module); h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers); if (h == NULL) { return NGX_ERROR; } *h = ngx_http_dav_handler; return NGX_OK; }