Mercurial > hg > nginx
view src/http/modules/ngx_http_dav_module.c @ 3496:fb88801564de
build nginx/Windows against OpenSSL-0.9.8n, since nginx-0.8.35
built against OpenSSL-1.0.0 crashed on Windows XP somewhere
in the NTDLL.DLL on the master process exit
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Wed, 21 Apr 2010 15:09:17 +0000 |
parents | 6ddaac3e0bf7 |
children | 423ff11e3018 |
line wrap: on
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #define NGX_HTTP_DAV_COPY_BLOCK 65536 #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; 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] == '/') { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "can not PUT to a collection"); return NGX_HTTP_CONFLICT; } 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; ngx_http_map_uri_to_path(r, &path, &root, 0); 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_http_parse_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: ngx_http_map_uri_to_path(r, &path, &root, 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) == 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_file_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_file_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); *(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; } 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 = 0; 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: ngx_http_map_uri_to_path(r, &path, &root, 0); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http copy from: \"%s\"", path.data); uri = r->uri; r->uri = duri; ngx_http_map_uri_to_path(r, ©.path, &root, 0); 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_file_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_file_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_file_info(path.data, &fi) == NGX_FILE_ERROR) { return ngx_http_dav_error(r->connection->log, ngx_errno, NGX_HTTP_NOT_FOUND, ngx_file_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; } dlcf = ngx_http_get_module_loc_conf(r, ngx_http_dav_module); cf.size = ngx_file_size(&fi); cf.buf_size = 0; cf.access = dlcf->access; 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_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_pnalloc(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 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; }