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| Rev | Author | Line No. | Line |
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| 310 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * OIDplus 2.0 |
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| 5 | * Copyright 2019 Daniel Marschall, ViaThinkSoft |
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| 6 | * |
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 8 | * you may not use this file except in compliance with the License. |
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| 9 | * You may obtain a copy of the License at |
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| 10 | * |
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | * |
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| 13 | * Unless required by applicable law or agreed to in writing, software |
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | * See the License for the specific language governing permissions and |
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| 17 | * limitations under the License. |
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| 18 | */ |
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| 19 | |||
| 20 | class OIDplusPagePublicAttachments extends OIDplusPagePluginPublic { |
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| 21 | |||
| 22 | public static function getUploadDir($id) { |
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| 23 | $path = realpath(__DIR__.'/../../../').'/userdata/attachments/'; |
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| 24 | |||
| 25 | $obj = OIDplusObject::parse($id); |
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| 26 | if ($obj === null) throw new OIDplusException("Invalid object '$id'"); |
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| 27 | if ($obj::ns() == 'oid') { |
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| 28 | $oid = $obj->nodeId(false); |
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| 29 | } else { |
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| 30 | $oid = null; |
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| 31 | $alt_ids = $obj->getAltIds(); |
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| 32 | foreach ($alt_ids as $alt_id) { |
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| 33 | if ($alt_id->getNamespace() == 'oid') { |
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| 34 | $oid = $alt_id->getId(); |
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| 35 | break; // we prefer the first OID (for GUIDs, the first OID is the OIDplus-OID, and the second OID is the UUID OID) |
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| 36 | } |
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| 37 | } |
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| 38 | } |
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| 39 | |||
| 40 | if (!is_null($oid)) { |
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| 41 | // For OIDs, it is the OID, for other identifiers |
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| 42 | // it it the OID alt ID (generated using the SystemID) |
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| 43 | $path .= str_replace('.', '_', $oid); |
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| 44 | |||
| 45 | } else { |
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| 46 | // Can happen if you don't have a system ID (due to missing OpenSSL plugin) |
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| 47 | $path .= md5($obj->nodeId(true)); // we don't use $id, because $obj->nodeId(true) is possibly more canonical than $id |
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| 48 | } |
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| 49 | |||
| 50 | return $path; |
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| 51 | } |
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| 52 | |||
| 53 | private function raMayDelete() { |
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| 54 | return OIDplus::config()->getValue('attachments_allow_ra_delete', 0); |
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| 55 | } |
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| 56 | |||
| 57 | private function raMayUpload() { |
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| 58 | return OIDplus::config()->getValue('attachments_allow_ra_upload', 0); |
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| 59 | } |
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| 60 | |||
| 61 | public function action(&$handled) { |
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| 62 | |||
| 63 | if ($_REQUEST['action'] == 'deleteAttachment') { |
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| 64 | $handled = true; |
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| 65 | |||
| 66 | $id = $_POST['id']; |
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| 67 | $obj = OIDplusObject::parse($id); |
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| 68 | if ($obj === null) throw new OIDplusException("Invalid object '$id'"); |
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| 69 | if (!$obj->userHasWriteRights()) throw new OIDplusException("Authentication error. Please log in as the RA of '$id' to upload an attachment."); |
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| 70 | |||
| 71 | if (!OIDplus::authUtils()::isAdminLoggedIn() && !$this->raMayDelete()) { |
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| 72 | throw new OIDplusException("The administrator has disabled deleting attachments by RAs."); |
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| 73 | } |
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| 74 | |||
| 75 | $req_filename = $_REQUEST['filename']; |
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| 76 | if (strpos($req_filename, '/') !== false) throw new OIDplusException("Illegal file name"); |
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| 77 | if (strpos($req_filename, '\\') !== false) throw new OIDplusException("Illegal file name"); |
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| 78 | if (strpos($req_filename, '..') !== false) throw new OIDplusException("Illegal file name"); |
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| 79 | if (strpos($req_filename, chr(0)) !== false) throw new OIDplusException("Illegal file name"); |
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| 80 | |||
| 81 | $uploaddir = self::getUploadDir($id); |
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| 82 | $uploadfile = $uploaddir . '/' . basename($req_filename); |
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| 83 | |||
| 84 | if (!file_exists($uploadfile)) throw new OIDplusException("File does not exist"); |
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| 85 | @unlink($uploadfile); |
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| 86 | if (file_exists($uploadfile)) { |
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| 87 | $msg = "Attachment file '".basename($uploadfile)."' could not be deleted from object '$oid' (problem with permissions?)"; |
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| 88 | OIDplus::logger()->log("[ERR]OID($id)+[ERR]A!", $msg); |
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| 89 | if (OIDplus::authUtils()::isAdminLoggedIn()) { |
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| 90 | throw new OIDplusException($msg); |
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| 91 | } else { |
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| 92 | throw new OIDplusException("$msg. Please contact the system administrator."); |
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| 93 | } |
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| 94 | } |
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| 95 | |||
| 96 | OIDplus::logger()->log("[OK]OID($id)+[?INFO/!OK]OIDRA($id)?/[?INFO/!OK]A?", "Deleted attachment '".basename($uploadfile)."' from object '$id'"); |
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| 97 | |||
| 98 | echo json_encode(array("status" => 0)); |
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| 99 | } |
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| 100 | |||
| 101 | if ($_REQUEST['action'] == 'uploadAttachment') { |
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| 102 | $handled = true; |
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| 103 | |||
| 104 | $id = $_POST['id']; |
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| 105 | $obj = OIDplusObject::parse($id); |
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| 106 | if ($obj === null) throw new OIDplusException("Invalid object '$id'"); |
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| 107 | if (!$obj->userHasWriteRights()) throw new OIDplusException("Authentication error. Please log in as the RA of '$id' to upload an attachment."); |
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| 108 | |||
| 109 | if (!OIDplus::authUtils()::isAdminLoggedIn() && !$this->raMayUpload()) { |
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| 110 | throw new OIDplusException("The administrator has disabled uploading attachments by RAs."); |
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| 111 | } |
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| 112 | |||
| 113 | if (!OIDplus::authUtils()::isAdminLoggedIn()) { |
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| 114 | $banned = explode(',', OIDplus::config()->getValue('attachments_block_extensions', '')); |
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| 115 | foreach ($banned as $ext) { |
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| 116 | $ext = trim($ext); |
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| 117 | if ($ext == '') continue; |
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| 118 | if (strtolower(substr(basename($_FILES['userfile']['name']), -strlen($ext)-1)) == strtolower('.'.$ext)) { |
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| 119 | throw new OIDplusException("The file extension '.$ext' is banned by the administrator (it can be uploaded by the administrator though)"); |
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| 120 | } |
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| 121 | } |
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| 122 | } |
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| 123 | |||
| 124 | $req_filename = $_FILES['userfile']['name']; |
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| 125 | if (strpos($req_filename, '/') !== false) throw new OIDplusException("Illegal file name"); |
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| 126 | if (strpos($req_filename, '\\') !== false) throw new OIDplusException("Illegal file name"); |
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| 127 | if (strpos($req_filename, '..') !== false) throw new OIDplusException("Illegal file name"); |
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| 128 | if (strpos($req_filename, chr(0)) !== false) throw new OIDplusException("Illegal file name"); |
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| 129 | |||
| 130 | $uploaddir = self::getUploadDir($id); |
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| 131 | $uploadfile = $uploaddir . '/' . basename($req_filename); |
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| 132 | |||
| 133 | if (!is_dir($uploaddir)) { |
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| 134 | @mkdir($uploaddir, 0777, true); |
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| 135 | if (!is_dir($uploaddir)) { |
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| 136 | $msg = "Upload attachment '".basename($uploadfile)."' to object '$id' failed: Cannot create directory '".basename($uploaddir)."' (problem with permissions?)"; |
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| 137 | OIDplus::logger()->log("[ERR]OID($id)+[ERR]A!", $msg); |
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| 138 | if (OIDplus::authUtils()::isAdminLoggedIn()) { |
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| 139 | throw new OIDplusException($msg); |
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| 140 | } else { |
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| 141 | throw new OIDplusException("$msg. Please contact the system administrator."); |
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| 142 | } |
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| 143 | } |
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| 144 | } |
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| 145 | |||
| 146 | if (!@move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) { |
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| 147 | $msg = "Upload attachment '".basename($uploadfile)."' to object '$id' failed: Cannot move uploaded file into directory (problem with permissions?)"; |
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| 148 | OIDplus::logger()->log("[ERR]OID($id)+[ERR]A!", $msg); |
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| 149 | if (OIDplus::authUtils()::isAdminLoggedIn()) { |
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| 150 | throw new OIDplusException($msg); |
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| 151 | } else { |
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| 152 | throw new OIDplusException("$msg. Please contact the system administrator."); |
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| 153 | } |
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| 154 | } |
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| 155 | |||
| 156 | OIDplus::logger()->log("[OK]OID($id)+[?INFO/!OK]OIDRA($id)?/[?INFO/!OK]A?", "Uploaded attachment '".basename($uploadfile)."' to object '$id'"); |
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| 157 | |||
| 158 | echo json_encode(array("status" => 0)); |
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| 159 | } |
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| 160 | } |
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| 161 | |||
| 162 | public function init($html=true) { |
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| 163 | OIDplus::config()->prepareConfigKey('attachments_block_extensions', 'Block file name extensions being used in file attachments (comma separated)', 'exe,scr,pif,bat,com,vbs,cmd', OIDplusConfig::PROTECTION_EDITABLE, function($value) { |
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| 164 | }); |
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| 165 | OIDplus::config()->prepareConfigKey('attachments_allow_ra_delete', 'Allow that RAs delete file attachments? (0=no, 1=yes)', '0', OIDplusConfig::PROTECTION_EDITABLE, function($value) { |
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| 166 | if (!is_numeric($value) || ($value < 0) || ($value > 1)) { |
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| 167 | throw new OIDplusException("Please enter a valid value (0 or 1)."); |
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| 168 | } |
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| 169 | }); |
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| 170 | OIDplus::config()->prepareConfigKey('attachments_allow_ra_upload', 'Allow that RAs upload file attachments? (0=no, 1=yes)', '0', OIDplusConfig::PROTECTION_EDITABLE, function($value) { |
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| 171 | if (!is_numeric($value) || ($value < 0) || ($value > 1)) { |
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| 172 | throw new OIDplusException("Please enter a valid value (0 or 1)."); |
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| 173 | } |
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| 174 | }); |
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| 175 | } |
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| 176 | |||
| 177 | public function gui($id, &$out, &$handled) { |
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| 178 | // Nothing |
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| 179 | } |
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| 180 | |||
| 181 | public function publicSitemap(&$out) { |
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| 182 | // Nothing |
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| 183 | } |
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| 184 | |||
| 185 | public function tree(&$json, $ra_email=null, $nonjs=false, $req_goto='') { |
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| 186 | return false; |
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| 187 | } |
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| 188 | |||
| 189 | private static function convert_filesize($bytes, $decimals = 2){ |
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| 190 | $size = array('Bytes','KiB','MiB','GiB','TiB','PiB','EiB','ZiB','YiB'); |
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| 191 | $factor = floor((strlen($bytes) - 1) / 3); |
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| 192 | return sprintf("%.{$decimals}f", $bytes / pow(1024, $factor)) . ' ' . @$size[$factor]; |
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| 193 | } |
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| 194 | |||
| 195 | public function implementsFeature($id) { |
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| 196 | if (strtolower($id) == '1.3.6.1.4.1.37476.2.5.2.3.2') return true; // modifyContent |
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| 197 | return false; |
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| 198 | } |
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| 199 | |||
| 200 | public function modifyContent($id, &$title, &$icon, &$text) { |
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| 201 | // Interface 1.3.6.1.4.1.37476.2.5.2.3.2 |
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| 202 | |||
| 203 | $files = glob(self::getUploadDir($id).'/'.'*'); |
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| 204 | $doshow = false; |
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| 205 | $output = ''; |
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| 206 | |||
| 207 | $obj = OIDplusObject::parse($id); |
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| 208 | if ($obj === null) throw new OIDplusException("Invalid object '$id'"); |
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| 209 | $can_upload = OIDplus::authUtils()::isAdminLoggedIn() || ($this->raMayUpload() && $obj->userHasWriteRights()); |
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| 210 | $can_delete = OIDplus::authUtils()::isAdminLoggedIn() || ($this->raMayDelete() && $obj->userHasWriteRights()); |
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| 211 | |||
| 212 | $output .= '<h2>File attachments</h2>'; |
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| 213 | $output .= '<div class="container box">'; |
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| 214 | |||
| 215 | if (OIDplus::authUtils()::isAdminLoggedIn()) { |
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| 216 | $output .= '<p>Admin info: The directory is <b>'.htmlentities(self::getUploadDir($id)).'</b></p>'; |
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| 217 | $doshow = true; |
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| 218 | } |
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| 219 | |||
| 220 | $output .= '<div id="fileattachments_table" class="table-responsive">'; |
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| 221 | $output .= '<table class="table table-bordered table-striped">'; |
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| 222 | $output .= '<tr>'; |
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| 223 | $output .= '<th>Filename</th>'; |
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| 224 | $output .= '<th>Size</th>'; |
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| 225 | $output .= '<th>File type</th>'; |
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| 226 | $output .= '<th>Download</th>'; |
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| 227 | if ($can_delete) $output .= '<th>Delete</th>'; |
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| 228 | $output .= '</tr>'; |
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| 229 | foreach ($files as $file) { |
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| 230 | $output .= '<tr>'; |
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| 231 | $output .= '<td>'.htmlentities(basename($file)).'</td>'; |
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| 232 | $output .= '<td>'.htmlentities(self::convert_filesize(filesize($file), 0)).'</td>'; |
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| 233 | $lookup_files = array(__DIR__.'/../../../userdata/attachments/filetypes.conf', __DIR__.'/../../../3p/vts_fileformats/filetypes.local', __DIR__.'/../../../3p/vts_fileformats/filetypes.conf'); |
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| 234 | $output .= '<td>'.htmlentities(VtsFileTypeDetect::getDescription($file, $lookup_files)).'</td>'; |
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| 235 | |||
| 236 | $output .= ' <td><button type="button" name="download_'.md5($file).'" id="download_'.md5($file).'" class="btn btn-success btn-xs download" onclick="downloadAttachment('.js_escape(OIDplus::webpath(__DIR__)).', current_node,'.js_escape(basename($file)).')">Download</button></td>'; |
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| 237 | if ($can_delete) { |
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| 238 | $output .= ' <td><button type="button" name="delete_'.md5($file).'" id="delete_'.md5($file).'" class="btn btn-danger btn-xs delete" onclick="deleteAttachment(current_node,'.js_escape(basename($file)).')">Delete</button></td>'; |
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| 239 | } |
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| 240 | |||
| 241 | $output .= '</tr>'; |
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| 242 | $doshow = true; |
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| 243 | } |
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| 244 | |||
| 245 | if (count($files) === 0) $output .= '<tr><td colspan="'.($can_delete ? 5 : 4).'"><i>No attachments</i></td></tr>'; |
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| 246 | |||
| 247 | $output .= '</table></div>'; |
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| 248 | |||
| 249 | if ($can_upload) { |
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| 250 | $output .= '<form onsubmit="return uploadAttachmentOnSubmit(this);" enctype="multipart/form-data" id="uploadAttachmentForm">'; |
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| 251 | $output .= '<input type="hidden" name="id" value="'.htmlentities($id).'">'; |
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| 252 | $output .= '<input type="hidden" name="action" value="uploadAttachment">'; |
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| 253 | $output .= '<div>Add a file attachment:<input type="file" name="userfile" value="" id="fileAttachment">'; |
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| 254 | $output .= '<br><input type="submit" value="Upload"></div>'; |
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| 255 | $output .= '</form>'; |
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| 256 | $doshow = true; |
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| 257 | } |
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| 258 | |||
| 259 | $output .= '</div>'; |
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| 260 | |||
| 261 | if ($doshow) $text .= $output; |
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| 262 | } |
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| 263 | |||
| 264 | public function tree_search($request) { |
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| 265 | return false; |
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| 266 | } |
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| 267 | } |