1/* Licensed to the Apache Software Foundation (ASF) under one or more 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "apr.h" 18#include "apr_arch_file_io.h" 19#include "apr_strings.h" 20 21/* Win32 Exceptions: 22 * 23 * Note that trailing spaces and trailing periods are never recorded 24 * in the file system, except by a very obscure bug where any file 25 * that is created with a trailing space or period, followed by the 26 * ':' stream designator on an NTFS volume can never be accessed again. 27 * In other words, don't ever accept them when designating a stream! 28 * 29 * An interesting side effect is that two or three periods are both 30 * treated as the parent directory, although the fourth and on are 31 * not [strongly suggest all trailing periods are trimmed off, or 32 * down to two if there are no other characters.] 33 * 34 * Leading spaces and periods are accepted, however. 35 * The * ? < > codes all have wildcard side effects 36 * The " / \ : are exclusively component separator tokens 37 * The system doesn't accept | for any (known) purpose 38 * Oddly, \x7f _is_ acceptable ;) 39 */ 40 41/* apr_c_is_fnchar[] maps Win32's file name and shell escape symbols 42 * 43 * element & 1 == valid file name character [excluding delimiters] 44 * element & 2 == character should be shell (caret) escaped from cmd.exe 45 * 46 * this must be in-sync with Apache httpd's gen_test_char.c for cgi escaping. 47 */ 48 49const char apr_c_is_fnchar[256] = 50{/* Reject all ctrl codes... Escape \n and \r (ascii 10 and 13) */ 51 0,0,0,0,0,0,0,0,0,0,2,0,0,2,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 52 /* ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ 53 1,1,2,1,3,3,3,3,3,3,2,1,1,1,1,0, 1,1,1,1,1,1,1,1,1,1,0,3,2,1,2,2, 54 /* @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ */ 55 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,3,2,3,3,1, 56 /* ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ */ 57 3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,3,2,3,3,1, 58 /* High bit codes are accepted (subject to utf-8->Unicode xlation) */ 59 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 60 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 61 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 62 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 63}; 64 65 66apr_status_t filepath_root_test(char *path, apr_pool_t *p) 67{ 68 apr_status_t rv; 69#if APR_HAS_UNICODE_FS 70 if (apr_os_level >= APR_WIN_NT) 71 { 72 apr_wchar_t wpath[APR_PATH_MAX]; 73 if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath) 74 / sizeof(apr_wchar_t), path))) 75 return rv; 76 rv = GetDriveTypeW(wpath); 77 } 78 else 79#endif 80 rv = GetDriveType(path); 81 82 if (rv == DRIVE_UNKNOWN || rv == DRIVE_NO_ROOT_DIR) 83 return APR_EBADPATH; 84 return APR_SUCCESS; 85} 86 87 88apr_status_t filepath_drive_get(char **rootpath, char drive, 89 apr_int32_t flags, apr_pool_t *p) 90{ 91 char path[APR_PATH_MAX]; 92#if APR_HAS_UNICODE_FS 93 IF_WIN_OS_IS_UNICODE 94 { 95 apr_wchar_t *ignored; 96 apr_wchar_t wdrive[8]; 97 apr_wchar_t wpath[APR_PATH_MAX]; 98 apr_status_t rv; 99 /* ???: This needs review, apparently "\\?\d:." returns "\\?\d:" 100 * as if that is useful for anything. 101 */ 102 wcscpy(wdrive, L"D:."); 103 wdrive[0] = (apr_wchar_t)(unsigned char)drive; 104 if (!GetFullPathNameW(wdrive, sizeof(wpath) / sizeof(apr_wchar_t), wpath, &ignored)) 105 return apr_get_os_error(); 106 if ((rv = unicode_to_utf8_path(path, sizeof(path), wpath))) 107 return rv; 108 } 109#endif 110#if APR_HAS_ANSI_FS 111 ELSE_WIN_OS_IS_ANSI 112 { 113 char *ignored; 114 char drivestr[4]; 115 drivestr[0] = drive; 116 drivestr[1] = ':'; 117 drivestr[2] = '.';; 118 drivestr[3] = '\0'; 119 if (!GetFullPathName(drivestr, sizeof(path), path, &ignored)) 120 return apr_get_os_error(); 121 } 122#endif 123 if (!(flags & APR_FILEPATH_NATIVE)) { 124 for (*rootpath = path; **rootpath; ++*rootpath) { 125 if (**rootpath == '\\') 126 **rootpath = '/'; 127 } 128 } 129 *rootpath = apr_pstrdup(p, path); 130 return APR_SUCCESS; 131} 132 133 134apr_status_t filepath_root_case(char **rootpath, char *root, apr_pool_t *p) 135{ 136#if APR_HAS_UNICODE_FS 137 IF_WIN_OS_IS_UNICODE 138 { 139 apr_wchar_t *ignored; 140 apr_wchar_t wpath[APR_PATH_MAX]; 141 apr_status_t rv; 142 apr_wchar_t wroot[APR_PATH_MAX]; 143 /* ???: This needs review, apparently "\\?\d:." returns "\\?\d:" 144 * as if that is useful for anything. 145 */ 146 if ((rv = utf8_to_unicode_path(wroot, sizeof(wroot) 147 / sizeof(apr_wchar_t), root))) 148 return rv; 149 if (!GetFullPathNameW(wroot, sizeof(wpath) / sizeof(apr_wchar_t), wpath, &ignored)) 150 return apr_get_os_error(); 151 152 /* Borrow wroot as a char buffer (twice as big as necessary) 153 */ 154 if ((rv = unicode_to_utf8_path((char*)wroot, sizeof(wroot), wpath))) 155 return rv; 156 *rootpath = apr_pstrdup(p, (char*)wroot); 157 } 158#endif 159#if APR_HAS_ANSI_FS 160 ELSE_WIN_OS_IS_ANSI 161 { 162 char path[APR_PATH_MAX]; 163 char *ignored; 164 if (!GetFullPathName(root, sizeof(path), path, &ignored)) 165 return apr_get_os_error(); 166 *rootpath = apr_pstrdup(p, path); 167 } 168#endif 169 return APR_SUCCESS; 170} 171 172 173APR_DECLARE(apr_status_t) apr_filepath_get(char **rootpath, apr_int32_t flags, 174 apr_pool_t *p) 175{ 176 char path[APR_PATH_MAX]; 177#if APR_HAS_UNICODE_FS 178 IF_WIN_OS_IS_UNICODE 179 { 180 apr_wchar_t wpath[APR_PATH_MAX]; 181 apr_status_t rv; 182 if (!GetCurrentDirectoryW(sizeof(wpath) / sizeof(apr_wchar_t), wpath)) 183 return apr_get_os_error(); 184 if ((rv = unicode_to_utf8_path(path, sizeof(path), wpath))) 185 return rv; 186 } 187#endif 188#if APR_HAS_ANSI_FS 189 ELSE_WIN_OS_IS_ANSI 190 { 191 if (!GetCurrentDirectory(sizeof(path), path)) 192 return apr_get_os_error(); 193 } 194#endif 195 if (!(flags & APR_FILEPATH_NATIVE)) { 196 for (*rootpath = path; **rootpath; ++*rootpath) { 197 if (**rootpath == '\\') 198 **rootpath = '/'; 199 } 200 } 201 *rootpath = apr_pstrdup(p, path); 202 return APR_SUCCESS; 203} 204 205 206APR_DECLARE(apr_status_t) apr_filepath_set(const char *rootpath, 207 apr_pool_t *p) 208{ 209#if APR_HAS_UNICODE_FS 210 IF_WIN_OS_IS_UNICODE 211 { 212 apr_wchar_t wpath[APR_PATH_MAX]; 213 apr_status_t rv; 214 if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath) 215 / sizeof(apr_wchar_t), rootpath))) 216 return rv; 217 if (!SetCurrentDirectoryW(wpath)) 218 return apr_get_os_error(); 219 } 220#endif 221#if APR_HAS_ANSI_FS 222 ELSE_WIN_OS_IS_ANSI 223 { 224 if (!SetCurrentDirectory(rootpath)) 225 return apr_get_os_error(); 226 } 227#endif 228 return APR_SUCCESS; 229} 230