Mercurial > hg > nginx
view src/http/modules/ngx_http_dav_module.c @ 7355:b64adc956643
Rewrite: removed r->err_status special handling (ticket #1634).
Trying to look into r->err_status in the "return" directive
makes it behave differently than real errors generated in other
parts of the code, and is an endless source of various problems.
This behaviour was introduced in 726:7b71936d5299 (0.4.4) with
the comment "fix: "return" always overrode "error_page" response code".
It is not clear if there were any real cases this was expected to fix,
but there are several cases which are broken due to this change, some
previously fixed (4147:7f64de1cc2c0).
In ticket #1634, the problem is that when r->err_status is set to
a non-special status code, it is not possible to return a response
by simply returning r->err_status. If this is the case, the only
option is to return script's e->status instead. An example
configuration:
location / {
error_page 404 =200 /err502;
return 404;
}
location = /err502 {
return 502;
}
After the change, such a configuration will properly return
standard 502 error, much like it happens when a 502 error is
generated by proxy_pass.
This also fixes the following configuration to properly close
connection as clearly requested by "return 444":
location / {
error_page 404 /close;
return 404;
}
location = /close {
return 444;
}
Previously, this required "error_page 404 = /close;" to work
as intended.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 21 Sep 2018 15:59:33 +0300 |
parents | bb40db0e380d |
children | c1a7d3672653 |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #define NGX_HTTP_DAV_OFF 2 #define NGX_HTTP_DAV_NO_DEPTH -3 #define NGX_HTTP_DAV_INVALID_DEPTH -2 #define NGX_HTTP_DAV_INFINITY_DEPTH -1 typedef struct { ngx_uint_t methods; ngx_uint_t access; ngx_uint_t min_delete_depth; ngx_flag_t create_full_put_path; } ngx_http_dav_loc_conf_t; typedef struct { ngx_str_t path; size_t len; } ngx_http_dav_copy_ctx_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_delete_handler(ngx_http_request_t *r); static ngx_int_t ngx_http_dav_delete_path(ngx_http_request_t *r, ngx_str_t *path, ngx_uint_t dir); static ngx_int_t ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path); static ngx_int_t ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path); static ngx_int_t ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path); static ngx_int_t ngx_http_dav_mkcol_handler(ngx_http_request_t *r, ngx_http_dav_loc_conf_t *dlcf); static ngx_int_t ngx_http_dav_copy_move_handler(ngx_http_request_t *r); static ngx_int_t ngx_http_dav_copy_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path); static ngx_int_t ngx_http_dav_copy_dir_time(ngx_tree_ctx_t *ctx, ngx_str_t *path); static ngx_int_t ngx_http_dav_copy_tree_file(ngx_tree_ctx_t *ctx, ngx_str_t *path); static ngx_int_t ngx_http_dav_depth(ngx_http_request_t *r, ngx_int_t dflt); static ngx_int_t ngx_http_dav_error(ngx_log_t *log, 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_conf_t *cf); 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_string("copy"), NGX_HTTP_COPY }, { ngx_string("move"), NGX_HTTP_MOVE }, { 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_string("min_delete_depth"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_dav_loc_conf_t, min_delete_depth), NULL }, { ngx_string("dav_access"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123, ngx_conf_set_access_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_dav_loc_conf_t, access), NULL }, ngx_null_command }; static ngx_http_module_t ngx_http_dav_module_ctx = { NULL, /* preconfiguration */ ngx_http_dav_init, /* 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 */ 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_dav_handler(ngx_http_request_t *r) { ngx_int_t rc; ngx_http_dav_loc_conf_t *dlcf; 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] == '/') { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "cannot PUT to a collection"); return NGX_HTTP_CONFLICT; } if (r->headers_in.content_range) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "PUT with range is unsupported"); return NGX_HTTP_NOT_IMPLEMENTED; } r->request_body_in_file_only = 1; r->request_body_in_persistent_file = 1; r->request_body_in_clean_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: return ngx_http_dav_delete_handler(r); case NGX_HTTP_MKCOL: return ngx_http_dav_mkcol_handler(r, dlcf); case NGX_HTTP_COPY: return ngx_http_dav_copy_move_handler(r); case NGX_HTTP_MOVE: return ngx_http_dav_copy_move_handler(r); } return NGX_DECLINED; } static void ngx_http_dav_put_handler(ngx_http_request_t *r) { size_t root; time_t date; ngx_str_t *temp, path; ngx_uint_t status; ngx_file_info_t fi; ngx_ext_rename_file_t ext; ngx_http_dav_loc_conf_t *dlcf; if (r->request_body == NULL) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "PUT request body is unavailable"); ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return; } if (r->request_body->temp_file == NULL) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "PUT request body must be in a file"); ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return; } if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return; } path.len--; 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) == NGX_FILE_ERROR) { status = NGX_HTTP_CREATED; } else { status = NGX_HTTP_NO_CONTENT; if (ngx_is_dir(&fi)) { ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EISDIR, "\"%s\" could not be created", path.data); if (ngx_delete_file(temp->data) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, ngx_delete_file_n " \"%s\" failed", temp->data); } ngx_http_finalize_request(r, NGX_HTTP_CONFLICT); return; } } dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module); ext.access = dlcf->access; ext.path_access = dlcf->access; ext.time = -1; ext.create_path = dlcf->create_full_put_path; ext.delete_file = 1; ext.log = r->connection->log; if (r->headers_in.date) { date = ngx_parse_http_time(r->headers_in.date->value.data, r->headers_in.date->value.len); if (date != NGX_ERROR) { ext.time = date; ext.fd = r->request_body->temp_file->file.fd; } } if (ngx_ext_rename_file(temp, &path, &ext) != NGX_OK) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return; } 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_delete_handler(ngx_http_request_t *r) { size_t root; ngx_err_t err; ngx_int_t rc, depth; ngx_uint_t i, d, dir; ngx_str_t path; ngx_file_info_t fi; ngx_http_dav_loc_conf_t *dlcf; if (r->headers_in.content_length_n > 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "DELETE with body is unsupported"); return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module); if (dlcf->min_delete_depth) { d = 0; for (i = 0; i < r->uri.len; /* void */) { if (r->uri.data[i++] == '/') { if (++d >= dlcf->min_delete_depth && i < r->uri.len) { goto ok; } } } ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "insufficient URI depth:%i to DELETE", d); return NGX_HTTP_CONFLICT; } ok: if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http delete filename: \"%s\"", path.data); if (ngx_link_info(path.data, &fi) == NGX_FILE_ERROR) { err = ngx_errno; rc = (err == NGX_ENOTDIR) ? NGX_HTTP_CONFLICT : NGX_HTTP_NOT_FOUND; return ngx_http_dav_error(r->connection->log, err, rc, ngx_link_info_n, path.data); } if (ngx_is_dir(&fi)) { if (r->uri.data[r->uri.len - 1] != '/') { ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EISDIR, "DELETE \"%s\" failed", path.data); return NGX_HTTP_CONFLICT; } depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH); if (depth != NGX_HTTP_DAV_INFINITY_DEPTH) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"Depth\" header must be infinity"); return NGX_HTTP_BAD_REQUEST; } path.len -= 2; /* omit "/\0" */ dir = 1; } else { /* * we do not need to test (r->uri.data[r->uri.len - 1] == '/') * because ngx_link_info("/file/") returned NGX_ENOTDIR above */ depth = ngx_http_dav_depth(r, 0); if (depth != 0 && depth != NGX_HTTP_DAV_INFINITY_DEPTH) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"Depth\" header must be 0 or infinity"); return NGX_HTTP_BAD_REQUEST; } dir = 0; } rc = ngx_http_dav_delete_path(r, &path, dir); if (rc == NGX_OK) { return NGX_HTTP_NO_CONTENT; } return rc; } static ngx_int_t ngx_http_dav_delete_path(ngx_http_request_t *r, ngx_str_t *path, ngx_uint_t dir) { char *failed; ngx_tree_ctx_t tree; if (dir) { tree.init_handler = NULL; tree.file_handler = ngx_http_dav_delete_file; tree.pre_tree_handler = ngx_http_dav_noop; tree.post_tree_handler = ngx_http_dav_delete_dir; tree.spec_handler = ngx_http_dav_delete_file; tree.data = NULL; tree.alloc = 0; tree.log = r->connection->log; /* TODO: 207 */ if (ngx_walk_tree(&tree, path) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } if (ngx_delete_dir(path->data) != NGX_FILE_ERROR) { return NGX_OK; } failed = ngx_delete_dir_n; } else { if (ngx_delete_file(path->data) != NGX_FILE_ERROR) { return NGX_OK; } failed = ngx_delete_file_n; } return ngx_http_dav_error(r->connection->log, ngx_errno, NGX_HTTP_NOT_FOUND, failed, path->data); } static ngx_int_t ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path) { ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http delete dir: \"%s\"", path->data); if (ngx_delete_dir(path->data) == NGX_FILE_ERROR) { /* TODO: add to 207 */ (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_delete_dir_n, path->data); } return NGX_OK; } static ngx_int_t ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path) { ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http delete file: \"%s\"", path->data); if (ngx_delete_file(path->data) == NGX_FILE_ERROR) { /* TODO: add to 207 */ (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_delete_file_n, path->data); } return NGX_OK; } static ngx_int_t ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path) { return NGX_OK; } static ngx_int_t ngx_http_dav_mkcol_handler(ngx_http_request_t *r, ngx_http_dav_loc_conf_t *dlcf) { u_char *p; size_t root; ngx_str_t path; if (r->headers_in.content_length_n > 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "MKCOL with body is unsupported"); return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } if (r->uri.data[r->uri.len - 1] != '/') { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "MKCOL can create a collection only"); return NGX_HTTP_CONFLICT; } p = ngx_http_map_uri_to_path(r, &path, &root, 0); if (p == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } *(p - 1) = '\0'; r->uri.len--; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http mkcol path: \"%s\"", path.data); if (ngx_create_dir(path.data, ngx_dir_access(dlcf->access)) != 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->connection->log, ngx_errno, NGX_HTTP_CONFLICT, ngx_create_dir_n, path.data); } static ngx_int_t ngx_http_dav_copy_move_handler(ngx_http_request_t *r) { u_char *p, *host, *last, ch; size_t len, root; ngx_err_t err; ngx_int_t rc, depth; ngx_uint_t overwrite, slash, dir, flags; ngx_str_t path, uri, duri, args; ngx_tree_ctx_t tree; ngx_copy_file_t cf; ngx_file_info_t fi; ngx_table_elt_t *dest, *over; ngx_ext_rename_file_t ext; ngx_http_dav_copy_ctx_t copy; ngx_http_dav_loc_conf_t *dlcf; if (r->headers_in.content_length_n > 0) { return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } dest = r->headers_in.destination; if (dest == NULL) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "client sent no \"Destination\" header"); return NGX_HTTP_BAD_REQUEST; } p = dest->value.data; /* there is always '\0' even after empty header value */ if (p[0] == '/') { last = p + dest->value.len; goto destination_done; } len = r->headers_in.server.len; if (len == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "client sent no \"Host\" header"); return NGX_HTTP_BAD_REQUEST; } #if (NGX_HTTP_SSL) if (r->connection->ssl) { if (ngx_strncmp(dest->value.data, "https://", sizeof("https://") - 1) != 0) { goto invalid_destination; } host = dest->value.data + sizeof("https://") - 1; } else #endif { if (ngx_strncmp(dest->value.data, "http://", sizeof("http://") - 1) != 0) { goto invalid_destination; } host = dest->value.data + sizeof("http://") - 1; } if (ngx_strncmp(host, r->headers_in.server.data, len) != 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"Destination\" URI \"%V\" is handled by " "different repository than the source URI", &dest->value); return NGX_HTTP_BAD_REQUEST; } last = dest->value.data + dest->value.len; for (p = host + len; p < last; p++) { if (*p == '/') { goto destination_done; } } invalid_destination: ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "client sent invalid \"Destination\" header: \"%V\"", &dest->value); return NGX_HTTP_BAD_REQUEST; destination_done: duri.len = last - p; duri.data = p; flags = NGX_HTTP_LOG_UNSAFE; if (ngx_http_parse_unsafe_uri(r, &duri, &args, &flags) != NGX_OK) { goto invalid_destination; } if ((r->uri.data[r->uri.len - 1] == '/' && *(last - 1) != '/') || (r->uri.data[r->uri.len - 1] != '/' && *(last - 1) == '/')) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "both URI \"%V\" and \"Destination\" URI \"%V\" " "should be either collections or non-collections", &r->uri, &dest->value); return NGX_HTTP_CONFLICT; } depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH); if (depth != NGX_HTTP_DAV_INFINITY_DEPTH) { if (r->method == NGX_HTTP_COPY) { if (depth != 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"Depth\" header must be 0 or infinity"); return NGX_HTTP_BAD_REQUEST; } } else { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"Depth\" header must be infinity"); return NGX_HTTP_BAD_REQUEST; } } over = r->headers_in.overwrite; if (over) { if (over->value.len == 1) { ch = over->value.data[0]; if (ch == 'T' || ch == 't') { overwrite = 1; goto overwrite_done; } if (ch == 'F' || ch == 'f') { overwrite = 0; goto overwrite_done; } } ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "client sent invalid \"Overwrite\" header: \"%V\"", &over->value); return NGX_HTTP_BAD_REQUEST; } overwrite = 1; overwrite_done: if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http copy from: \"%s\"", path.data); uri = r->uri; r->uri = duri; if (ngx_http_map_uri_to_path(r, ©.path, &root, 0) == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } r->uri = uri; copy.path.len--; /* omit "\0" */ if (copy.path.data[copy.path.len - 1] == '/') { slash = 1; copy.path.len--; copy.path.data[copy.path.len] = '\0'; } else { slash = 0; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http copy to: \"%s\"", copy.path.data); if (ngx_link_info(copy.path.data, &fi) == NGX_FILE_ERROR) { err = ngx_errno; if (err != NGX_ENOENT) { return ngx_http_dav_error(r->connection->log, err, NGX_HTTP_NOT_FOUND, ngx_link_info_n, copy.path.data); } /* destination does not exist */ overwrite = 0; dir = 0; } else { /* destination exists */ if (ngx_is_dir(&fi) && !slash) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"%V\" could not be %Ved to collection \"%V\"", &r->uri, &r->method_name, &dest->value); return NGX_HTTP_CONFLICT; } if (!overwrite) { ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_EEXIST, "\"%s\" could not be created", copy.path.data); return NGX_HTTP_PRECONDITION_FAILED; } dir = ngx_is_dir(&fi); } if (ngx_link_info(path.data, &fi) == NGX_FILE_ERROR) { return ngx_http_dav_error(r->connection->log, ngx_errno, NGX_HTTP_NOT_FOUND, ngx_link_info_n, path.data); } if (ngx_is_dir(&fi)) { if (r->uri.data[r->uri.len - 1] != '/') { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "\"%V\" is collection", &r->uri); return NGX_HTTP_BAD_REQUEST; } if (overwrite) { ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http delete: \"%s\"", copy.path.data); rc = ngx_http_dav_delete_path(r, ©.path, dir); if (rc != NGX_OK) { return rc; } } } if (ngx_is_dir(&fi)) { path.len -= 2; /* omit "/\0" */ if (r->method == NGX_HTTP_MOVE) { if (ngx_rename_file(path.data, copy.path.data) != NGX_FILE_ERROR) { return NGX_HTTP_CREATED; } } if (ngx_create_dir(copy.path.data, ngx_file_access(&fi)) == NGX_FILE_ERROR) { return ngx_http_dav_error(r->connection->log, ngx_errno, NGX_HTTP_NOT_FOUND, ngx_create_dir_n, copy.path.data); } copy.len = path.len; tree.init_handler = NULL; tree.file_handler = ngx_http_dav_copy_tree_file; tree.pre_tree_handler = ngx_http_dav_copy_dir; tree.post_tree_handler = ngx_http_dav_copy_dir_time; tree.spec_handler = ngx_http_dav_noop; tree.data = © tree.alloc = 0; tree.log = r->connection->log; if (ngx_walk_tree(&tree, &path) == NGX_OK) { if (r->method == NGX_HTTP_MOVE) { rc = ngx_http_dav_delete_path(r, &path, 1); if (rc != NGX_OK) { return rc; } } return NGX_HTTP_CREATED; } } else { if (r->method == NGX_HTTP_MOVE) { dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module); ext.access = 0; ext.path_access = dlcf->access; ext.time = -1; ext.create_path = 1; ext.delete_file = 0; ext.log = r->connection->log; if (ngx_ext_rename_file(&path, ©.path, &ext) == NGX_OK) { return NGX_HTTP_NO_CONTENT; } return NGX_HTTP_INTERNAL_SERVER_ERROR; } cf.size = ngx_file_size(&fi); cf.buf_size = 0; cf.access = ngx_file_access(&fi); cf.time = ngx_file_mtime(&fi); cf.log = r->connection->log; if (ngx_copy_file(path.data, copy.path.data, &cf) == NGX_OK) { return NGX_HTTP_NO_CONTENT; } } return NGX_HTTP_INTERNAL_SERVER_ERROR; } static ngx_int_t ngx_http_dav_copy_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path) { u_char *p, *dir; size_t len; ngx_http_dav_copy_ctx_t *copy; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http copy dir: \"%s\"", path->data); copy = ctx->data; len = copy->path.len + path->len; dir = ngx_alloc(len + 1, ctx->log); if (dir == NULL) { return NGX_ABORT; } p = ngx_cpymem(dir, copy->path.data, copy->path.len); (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http copy dir to: \"%s\"", dir); if (ngx_create_dir(dir, ngx_dir_access(ctx->access)) == NGX_FILE_ERROR) { (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_create_dir_n, dir); } ngx_free(dir); return NGX_OK; } static ngx_int_t ngx_http_dav_copy_dir_time(ngx_tree_ctx_t *ctx, ngx_str_t *path) { u_char *p, *dir; size_t len; ngx_http_dav_copy_ctx_t *copy; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http copy dir time: \"%s\"", path->data); copy = ctx->data; len = copy->path.len + path->len; dir = ngx_alloc(len + 1, ctx->log); if (dir == NULL) { return NGX_ABORT; } p = ngx_cpymem(dir, copy->path.data, copy->path.len); (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http copy dir time to: \"%s\"", dir); #if (NGX_WIN32) { ngx_fd_t fd; fd = ngx_open_file(dir, NGX_FILE_RDWR, NGX_FILE_OPEN, 0); if (fd == NGX_INVALID_FILE) { (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n, dir); goto failed; } if (ngx_set_file_time(NULL, fd, ctx->mtime) != NGX_OK) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_set_file_time_n " \"%s\" failed", dir); } if (ngx_close_file(fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_close_file_n " \"%s\" failed", dir); } } failed: #else if (ngx_set_file_time(dir, 0, ctx->mtime) != NGX_OK) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_set_file_time_n " \"%s\" failed", dir); } #endif ngx_free(dir); return NGX_OK; } static ngx_int_t ngx_http_dav_copy_tree_file(ngx_tree_ctx_t *ctx, ngx_str_t *path) { u_char *p, *file; size_t len; ngx_copy_file_t cf; ngx_http_dav_copy_ctx_t *copy; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http copy file: \"%s\"", path->data); copy = ctx->data; len = copy->path.len + path->len; file = ngx_alloc(len + 1, ctx->log); if (file == NULL) { return NGX_ABORT; } p = ngx_cpymem(file, copy->path.data, copy->path.len); (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0, "http copy file to: \"%s\"", file); cf.size = ctx->size; cf.buf_size = 0; cf.access = ctx->access; cf.time = ctx->mtime; cf.log = ctx->log; (void) ngx_copy_file(path->data, file, &cf); ngx_free(file); return NGX_OK; } static ngx_int_t ngx_http_dav_depth(ngx_http_request_t *r, ngx_int_t dflt) { ngx_table_elt_t *depth; depth = r->headers_in.depth; if (depth == NULL) { return dflt; } if (depth->value.len == 1) { if (depth->value.data[0] == '0') { return 0; } if (depth->value.data[0] == '1') { return 1; } } else { if (depth->value.len == sizeof("infinity") - 1 && ngx_strcmp(depth->value.data, "infinity") == 0) { return NGX_HTTP_DAV_INFINITY_DEPTH; } } ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "client sent invalid \"Depth\" header: \"%V\"", &depth->value); return NGX_HTTP_DAV_INVALID_DEPTH; } static ngx_int_t ngx_http_dav_error(ngx_log_t *log, 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, 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_list_push(&r->headers_out.headers); 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_pnalloc(r->pool, r->uri.len); if (location == NULL) { ngx_http_clear_location(r); return NGX_ERROR; } ngx_memcpy(location, r->uri.data, r->uri.len); } r->headers_out.location->hash = 1; ngx_str_set(&r->headers_out.location->key, "Location"); 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 NULL; } /* * set by ngx_pcalloc(): * * conf->methods = 0; */ conf->min_delete_depth = NGX_CONF_UNSET_UINT; conf->access = NGX_CONF_UNSET_UINT; 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_uint_value(conf->min_delete_depth, prev->min_delete_depth, 0); ngx_conf_merge_uint_value(conf->access, prev->access, 0600); 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_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_dav_handler; return NGX_OK; }