Mercurial > hg > nginx
view src/http/modules/ngx_http_dav_module.c @ 1417:b23a80f9a7b8
set current peer to use it in ngx_http_upstream_free_round_robin_peer()
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 24 Aug 2007 15:29:50 +0000 |
parents | aabbf66b61ea |
children | f4eb04fd8579 |
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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_flag_t create_full_put_path; ngx_uint_t access; } 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_no_init(void *ctx, void *prev); static ngx_int_t ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path); 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_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_file(ngx_tree_ctx_t *ctx, ngx_str_t *path); 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_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("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; /* 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_HTTP_BAD_REQUEST; } 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) { char *failed; u_char *name; size_t root; time_t date; ngx_err_t err; ngx_str_t *temp, path; ngx_uint_t status, not_found; ngx_file_info_t fi; ngx_http_dav_loc_conf_t *dlcf; ngx_http_map_uri_to_path(r, &path, &root, 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_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); #if !(NGX_WIN32) if (ngx_change_file_access(temp->data, dlcf->access) == NGX_FILE_ERROR) { err = ngx_errno; not_found = NGX_HTTP_INTERNAL_SERVER_ERROR; failed = ngx_change_file_access_n; name = temp->data; goto failed; } #endif 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) { if (ngx_set_file_time(temp->data, r->request_body->temp_file->file.fd, date) != NGX_OK) { err = ngx_errno; not_found = NGX_HTTP_INTERNAL_SERVER_ERROR; failed = ngx_set_file_time_n; name = temp->data; goto failed; } } } not_found = NGX_HTTP_CONFLICT; failed = ngx_rename_file_n; name = path.data; if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) { goto ok; } err = ngx_errno; if (err == NGX_ENOENT) { if (dlcf->create_full_put_path) { err = ngx_create_full_path(path.data, ngx_dir_access(dlcf->access)); 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 failed: 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_dav_error(r->connection->log, err, not_found, failed, name)); 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_delete_handler(ngx_http_request_t *r) { size_t root; ngx_int_t rc, depth; ngx_uint_t dir; ngx_str_t path; ngx_file_info_t fi; if (r->headers_in.content_length_n > 0) { return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } rc = ngx_http_discard_request_body(r); if (rc != NGX_OK) { return rc; } 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) == -1) { 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] != '/') { /* TODO: 301 */ return NGX_HTTP_BAD_REQUEST; } depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH); if (depth != NGX_HTTP_DAV_INFINITY_DEPTH) { return NGX_HTTP_BAD_REQUEST; } path.len -= 2; /* omit "/\0" */ dir = 1; } else { depth = ngx_http_dav_depth(r, 0); if (depth != 0 && depth != NGX_HTTP_DAV_INFINITY_DEPTH) { 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_no_init(void *ctx, void *prev) { 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_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_mkcol_handler(ngx_http_request_t *r, ngx_http_dav_loc_conf_t *dlcf) { size_t root; ngx_int_t rc; ngx_str_t path; if (r->headers_in.content_length_n > 0) { return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE; } rc = ngx_http_discard_request_body(r); if (rc != NGX_OK) { return rc; } ngx_http_map_uri_to_path(r, &path, &root, 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_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_BAD_REQUEST, 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 root; ngx_err_t err; ngx_int_t rc, depth; ngx_uint_t overwrite, slash; ngx_str_t path, uri; ngx_tree_ctx_t tree; ngx_file_info_t fi; ngx_table_elt_t *dest, *over; ngx_http_dav_copy_ctx_t copy; 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; } if (dest->value.len < sizeof("http://") - 1 + r->server_name.len + 1) { goto invalid_destination; } #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->server_name.data, r->server_name.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 + r->server_name.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: depth = ngx_http_dav_depth(r, 0); if (depth != 0 && depth != NGX_HTTP_DAV_INFINITY_DEPTH) { 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: rc = ngx_http_discard_request_body(r); if (rc != NGX_OK) { return rc; } 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.len = last - p; r->uri.data = p; 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) == -1) { 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 */ } else { /* destination exists */ if (ngx_is_dir(&fi) && !slash) { return NGX_HTTP_CONFLICT; } if (!overwrite) { return NGX_HTTP_PRECONDITION_FAILED; } 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, ngx_is_dir(&fi)); if (rc != NGX_OK) { return rc; } } if (ngx_file_info(path.data, &fi) == -1) { 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] != '/') { /* TODO: 301 */ return NGX_HTTP_BAD_REQUEST; } 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 = ngx_http_dav_no_init; tree.file_handler = ngx_http_dav_copy_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 (dest->value.data[dest->value.len - 1] == '/') { return NGX_HTTP_BAD_REQUEST; } if (r->method == NGX_HTTP_MOVE) { if (ngx_rename_file(path.data, copy.path.data) != NGX_FILE_ERROR) { return NGX_HTTP_NO_CONTENT; } } tree.data = © tree.log = r->connection->log; if (ngx_http_dav_copy_file(&tree, &path) != NGX_FILE_ERROR) { if (r->method == NGX_HTTP_MOVE) { rc = ngx_http_dav_delete_path(r, &path, 0); if (rc != NGX_OK) { return rc; } } 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; #if (WIN32) ngx_fd_t fd; #endif 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 (WIN32) 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_file(ngx_tree_ctx_t *ctx, ngx_str_t *path) { u_char *p, *file; size_t len; off_t size; ssize_t n; ngx_fd_t fd, copy_fd; ngx_http_dav_copy_ctx_t *copy; u_char buf[NGX_HTTP_DAV_COPY_BLOCK]; 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); fd = ngx_open_file(path->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0); if (fd == NGX_INVALID_FILE) { (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n, path->data); goto failed; } copy_fd = ngx_open_file(file, NGX_FILE_WRONLY, NGX_FILE_CREATE_OR_OPEN, ctx->access); if (copy_fd == NGX_INVALID_FILE) { (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n, file); goto copy_failed; } for (size = ctx->size; size > 0; size -= n) { n = ngx_read_fd(fd, buf, NGX_HTTP_DAV_COPY_BLOCK); if (n == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_read_fd_n " \"%s\" failed", path->data); break; } if (ngx_write_fd(copy_fd, buf, n) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_write_fd_n " \"%s\" failed", file); } } if (ngx_set_file_time(file, copy_fd, ctx->mtime) != NGX_OK) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_set_file_time_n " \"%s\" failed", file); } if (ngx_close_file(copy_fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_close_file_n " \"%s\" failed", file); } copy_failed: if (ngx_close_file(fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, ngx_close_file_n " \"%s\" failed", path->data); } failed: ngx_free(file); return NGX_OK; } 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 = ngx_http_dav_no_init; 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_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_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; conf->access = NGX_CONF_UNSET_UINT; 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); ngx_conf_merge_uint_value(conf->access, prev->access, 0600); 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; }