Merge pull request #417 from nextcloud/backport/414/stable21v21.0.3rc1v21.0.3

[stable21] Disable content copy for PDF files that specify it

3 files changed, 4 insertions, 3 deletions

diff --git a/js/files_pdfviewer-workersrc.js b/js/files_pdfviewer-workersrc.js
index 72c5bea..ef06716 100644
--- a/js/files_pdfviewer-workersrc.js
+++ b/js/files_pdfviewer-workersrc.js
@@ -19,7 +19,7 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  *
- */window.location===window.parent.location&&(window.location.href="/"),document.addEventListener("DOMContentLoaded",(function(){if(PDFViewerApplicationOptions.set("disablePreferences",!0),PDFViewerApplicationOptions.set("externalLinkTarget",pdfjsLib.LinkTarget.BLANK),PDFViewerApplicationOptions.set("isEvalSupported",!1),PDFViewerApplicationOptions.set("workerSrc",document.getElementsByTagName("head")[0].getAttribute("data-workersrc")),PDFViewerApplicationOptions.set("cMapUrl",document.getElementsByTagName("head")[0].getAttribute("data-cmapurl")),console.debug("Initialized files_pdfviewer",PDFViewerApplicationOptions.getAll()),PDFViewerApplication.download=function(){function e(e){for(var t=0,n=e.length;t<n&&""===e[t].trim();)t++;return"data:"===e.substr(t,5).toLowerCase()}var t=decodeURIComponent(window.location.search.substr(6));this.downloadManager.downloadUrl(t,function(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"document.pdf";if(e(t))return console.warn('getPDFFileNameFromURL: ignoring "data:" URL for performance reasons.'),n;var o=/^(?:(?:[^:]+:)?\/\/[^/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/,r=/[^/?#=]+\.pdf\b(?!.*\.pdf\b)/i,i=o.exec(t),a=r.exec(i[1])||r.exec(i[2])||r.exec(i[3]);if(a&&-1!==(a=a[0]).indexOf("%"))try{a=r.exec(decodeURIComponent(a))[0]}catch(e){console.debug(e)}return a||n}(t))},!Object(o.a)()){PDFViewerApplication.download=function(){};var e=document.getElementById("toolbarViewerRight").querySelector("button.download");e&&(e.style.display="none"),delete PDFViewerApplication.supportsPrinting,PDFViewerApplication.supportsPrinting=!1,PDFViewerApplication.beforePrint=function(){},document.getElementById("viewer").classList.add("disabledTextSelection"),console.debug("Files_PDFViewer, download and print disabled")}}),!0)},22:function(e,t,n){"use strict";
+ */window.location===window.parent.location&&(window.location.href="/"),document.addEventListener("DOMContentLoaded",(function(){if(PDFViewerApplicationOptions.set("disablePreferences",!0),PDFViewerApplicationOptions.set("externalLinkTarget",pdfjsLib.LinkTarget.BLANK),PDFViewerApplicationOptions.set("isEvalSupported",!1),PDFViewerApplicationOptions.set("workerSrc",document.getElementsByTagName("head")[0].getAttribute("data-workersrc")),PDFViewerApplicationOptions.set("cMapUrl",document.getElementsByTagName("head")[0].getAttribute("data-cmapurl")),PDFViewerApplicationOptions.set("enablePermissions",!0),console.debug("Initialized files_pdfviewer",PDFViewerApplicationOptions.getAll()),PDFViewerApplication.download=function(){function e(e){for(var t=0,n=e.length;t<n&&""===e[t].trim();)t++;return"data:"===e.substr(t,5).toLowerCase()}var t=decodeURIComponent(window.location.search.substr(6));this.downloadManager.downloadUrl(t,function(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"document.pdf";if(e(t))return console.warn('getPDFFileNameFromURL: ignoring "data:" URL for performance reasons.'),n;var o=/^(?:(?:[^:]+:)?\/\/[^/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/,r=/[^/?#=]+\.pdf\b(?!.*\.pdf\b)/i,i=o.exec(t),a=r.exec(i[1])||r.exec(i[2])||r.exec(i[3]);if(a&&-1!==(a=a[0]).indexOf("%"))try{a=r.exec(decodeURIComponent(a))[0]}catch(e){console.debug(e)}return a||n}(t))},!Object(o.a)()){PDFViewerApplication.download=function(){};var e=document.getElementById("toolbarViewerRight").querySelector("button.download");e&&(e.style.display="none"),delete PDFViewerApplication.supportsPrinting,PDFViewerApplication.supportsPrinting=!1,PDFViewerApplication.beforePrint=function(){},document.getElementById("viewer").classList.add("disabledTextSelection"),console.debug("Files_PDFViewer, download and print disabled")}}),!0)},22:function(e,t,n){"use strict";
 /**
  * @copyright Copyright (c) 2020 John Molakvoæ <skjnldsv@protonmail.com>
  *
@@ -41,4 +41,4 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  *
  */var o=document.getElementById("hideDownload");t.a=function(){return!o||o&&"true"!==o.value}}});
-//# sourceMappingURL=files_pdfviewer-workersrc.js.map?v=e6cc7c02ddda75eb37c6
\ No newline at end of file
+//# sourceMappingURL=files_pdfviewer-workersrc.js.map?v=5f5df98e3227ce31efa8
\ No newline at end of file
diff --git a/js/files_pdfviewer-workersrc.js.map b/js/files_pdfviewer-workersrc.js.map
index 9fa303c..4965d19 100644
--- a/js/files_pdfviewer-workersrc.js.map
+++ b/js/files_pdfviewer-workersrc.js.map
@@ -1 +1 @@
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= 141);\n","/**\n * @copyright Copyright (c) 2020 John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @author John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @license GNU AGPL version 3 or any later version\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU Affero General Public License as\n * published by the Free Software Foundation, either version 3 of the\n * License, or (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program. If not, see <http://www.gnu.org/licenses/>.\n *\n */\nexport default function() {\n\t// Not within iframe\n\tif (window.location !== window.parent.location) {\n\t\treturn\n\t}\n\n\twindow.location.href = '/'\n}\n","\n/**\n * @copyright Copyright (c) 2020 Daniel Calviño Sánchez <danxuliu@gmail.com>\n *\n * @author Daniel Calviño Sánchez <danxuliu@gmail.com>\n * @author John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @license GNU AGPL version 3 or any later version\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU Affero General Public License as\n * published by the Free Software Foundation, either version 3 of the\n * License, or (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program. If not, see <http://www.gnu.org/licenses/>.\n *\n */\n\nimport canDownload from './utils/canDownload'\nimport redirectIfNotIframe from './utils/redirectIfNotIframe'\n\n/**\n * Checks if the page is displayed in an iframe. If not redirect to /.\n **/\nredirectIfNotIframe()\n\n// When \"PDFViewerApplication.webViewerInitialized\" is executed (once\n// \"PDFViewerApplication.initialize\" is done) it opens the PDF file via URL,\n// which requires the PDFViewerApplication to be properly configured, so the\n// custom initialization has to be executed before that. 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\t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n \t\t}\n \t};\n\n \t// define __esModule on exports\n \t__webpack_require__.r = function(exports) {\n \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n \t\t}\n \t\tObject.defineProperty(exports, '__esModule', { value: true });\n \t};\n\n \t// create a fake namespace object\n \t// mode & 1: value is a module id, require it\n \t// mode & 2: merge all properties of value into the ns\n \t// mode & 4: return value when already ns object\n \t// mode & 8|1: behave like require\n \t__webpack_require__.t = function(value, mode) {\n \t\tif(mode & 1) value = __webpack_require__(value);\n \t\tif(mode & 8) return value;\n \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n \t\tvar ns = Object.create(null);\n \t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"/js/\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 141);\n","/**\n * @copyright Copyright (c) 2020 John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @author John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @license GNU AGPL version 3 or any later version\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU Affero General Public License as\n * published by the Free Software Foundation, either version 3 of the\n * License, or (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program. If not, see <http://www.gnu.org/licenses/>.\n *\n */\nexport default function() {\n\t// Not within iframe\n\tif (window.location !== window.parent.location) {\n\t\treturn\n\t}\n\n\twindow.location.href = '/'\n}\n","\n/**\n * @copyright Copyright (c) 2020 Daniel Calviño Sánchez <danxuliu@gmail.com>\n *\n * @author Daniel Calviño Sánchez <danxuliu@gmail.com>\n * @author John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @license GNU AGPL version 3 or any later version\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU Affero General Public License as\n * published by the Free Software Foundation, either version 3 of the\n * License, or (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program. If not, see <http://www.gnu.org/licenses/>.\n *\n */\n\nimport canDownload from './utils/canDownload'\nimport redirectIfNotIframe from './utils/redirectIfNotIframe'\n\n/**\n * Checks if the page is displayed in an iframe. If not redirect to /.\n **/\nredirectIfNotIframe()\n\n// When \"PDFViewerApplication.webViewerInitialized\" is executed (once\n// \"PDFViewerApplication.initialize\" is done) it opens the PDF file via URL,\n// which requires the PDFViewerApplication to be properly configured, so the\n// custom initialization has to be executed before that. This can be done by\n// listening to the \"webviewerloaded\" event, which is emitted after\n// \"PDFViewerApplication\" and \"PDFViewerApplicationOptions\" are globally set and\n// before \"PDFViewerApplication.initialize\" is executed.\nfunction initializeCustomPDFViewerApplication() {\n\n\t// Preferences override options, so they must be disabled for\n\t// \"externalLinkTarget\" to take effect.\n\tPDFViewerApplicationOptions.set('disablePreferences', true)\n\tPDFViewerApplicationOptions.set('externalLinkTarget', pdfjsLib.LinkTarget.BLANK)\n\tPDFViewerApplicationOptions.set('isEvalSupported', false)\n\tPDFViewerApplicationOptions.set('workerSrc', document.getElementsByTagName('head')[0].getAttribute('data-workersrc'))\n\tPDFViewerApplicationOptions.set('cMapUrl', document.getElementsByTagName('head')[0].getAttribute('data-cmapurl'))\n\tPDFViewerApplicationOptions.set('enablePermissions', true)\n\n\tconsole.debug('Initialized files_pdfviewer', PDFViewerApplicationOptions.getAll())\n\n\t// The download has to be forced to use the URL of the file; by default\n\t// \"PDFViewerApplication.download\" uses a blob, but this causes a CSP error\n\t// (at least, in Firefox) when trying to download it.\n\tPDFViewerApplication.download = function() {\n\t\t// \"isDataSchema()\" and \"getPDFFileNameFromURL()\" are copied from\n\t\t// \"vendor/pdfjs/web/viewer.js\", as the functions defined in that file\n\t\t// can not be accessed from the outside.\n\t\tfunction isDataSchema(url) {\n\t\t\tlet i = 0\n\t\t\tconst ii = url.length\n\t\t\twhile (i < ii && url[i].trim() === '') {\n\t\t\t\ti++\n\t\t\t}\n\t\t\treturn url.substr(i, 5).toLowerCase() === 'data:'\n\t\t}\n\n\t\tfunction getPDFFileNameFromURL(url) {\n\t\t\tconst defaultFilename = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'document.pdf'\n\n\t\t\tif (isDataSchema(url)) {\n\t\t\t\tconsole.warn('getPDFFileNameFromURL: ' + 'ignoring \"data:\" URL for performance reasons.')\n\t\t\t\treturn defaultFilename\n\t\t\t}\n\t\t\tconst reURI = /^(?:(?:[^:]+:)?\\/\\/[^/]+)?([^?#]*)(\\?[^#]*)?(#.*)?$/\n\t\t\tconst reFilename = /[^/?#=]+\\.pdf\\b(?!.*\\.pdf\\b)/i\n\t\t\tconst splitURI = reURI.exec(url)\n\t\t\tlet suggestedFilename = reFilename.exec(splitURI[1]) || reFilename.exec(splitURI[2]) || reFilename.exec(splitURI[3])\n\t\t\tif (suggestedFilename) {\n\t\t\t\tsuggestedFilename = suggestedFilename[0]\n\t\t\t\tif (suggestedFilename.indexOf('%') !== -1) {\n\t\t\t\t\ttry {\n\t\t\t\t\t\tsuggestedFilename = reFilename.exec(decodeURIComponent(suggestedFilename))[0]\n\t\t\t\t\t} catch (e) {\n\t\t\t\t\t\tconsole.debug(e)\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn suggestedFilename || defaultFilename\n\t\t}\n\n\t\tconst url = decodeURIComponent(window.location.search.substr(6))\n\n\t\tthis.downloadManager.downloadUrl(url, getPDFFileNameFromURL(url))\n\t}\n\n\tif (!canDownload()) {\n\t\t// Disable download function when downloads are hidden, as even if the\n\t\t// buttons in the UI are hidden the download could still be triggered\n\t\t// with Ctrl|Meta+S.\n\t\tPDFViewerApplication.download = function() {\n\t\t}\n\t\tconst downloadButton = document.getElementById('toolbarViewerRight').querySelector('button.download')\n\t\tif (downloadButton) {\n\t\t\tdownloadButton.style.display = 'none'\n\t\t}\n\n\t\t// Disable printing service when downloads are hidden, as even if the\n\t\t// buttons in the UI are hidden the printing could still be triggered\n\t\t// with Ctrl|Meta+P.\n\t\t// Abuse the \"supportsPrinting\" parameter, which signals that the\n\t\t// browser does not fully support printing, to make PDFViewer disable\n\t\t// the printing service.\n\t\t// \"supportsPrinting\" is a getter function, so it needs to be deleted\n\t\t// before replacing it with a simple value.\n\t\tdelete PDFViewerApplication.supportsPrinting\n\t\tPDFViewerApplication.supportsPrinting = false\n\n\t\t// When printing is not supported a warning is shown by the default\n\t\t// \"beforePrint\" function when trying to print. That function needs to\n\t\t// be replaced with an empty one to prevent that warning to be shown.\n\t\tPDFViewerApplication.beforePrint = function() {\n\t\t}\n\n\t\t// For css properties\n\t\tdocument.getElementById('viewer').classList.add('disabledTextSelection')\n\n\t\tconsole.debug('Files_PDFViewer, download and print disabled')\n\t}\n}\n\ndocument.addEventListener('DOMContentLoaded', initializeCustomPDFViewerApplication, true)\n","\n/**\n * @copyright Copyright (c) 2020 John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @author John Molakvoæ <skjnldsv@protonmail.com>\n *\n * @license GNU AGPL version 3 or any later version\n *\n * This program is free software: you can redistribute it and/or modify\n * it under the terms of the GNU Affero General Public License as\n * published by the Free Software Foundation, either version 3 of the\n * License, or (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program. If not, see <http://www.gnu.org/licenses/>.\n *\n */\n\nconst hideDownloadElmt = document.getElementById('hideDownload')\n// true = hidden download\nexport default () => !hideDownloadElmt || (hideDownloadElmt && hideDownloadElmt.value !== 'true')\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/src/workersrc.js b/src/workersrc.js
index 98fda00..92bb268 100644
--- a/src/workersrc.js
+++ b/src/workersrc.js
@@ -46,6 +46,7 @@ function initializeCustomPDFViewerApplication() {
 	PDFViewerApplicationOptions.set('isEvalSupported', false)
 	PDFViewerApplicationOptions.set('workerSrc', document.getElementsByTagName('head')[0].getAttribute('data-workersrc'))
 	PDFViewerApplicationOptions.set('cMapUrl', document.getElementsByTagName('head')[0].getAttribute('data-cmapurl'))
+	PDFViewerApplicationOptions.set('enablePermissions', true)
 
 	console.debug('Initialized files_pdfviewer', PDFViewerApplicationOptions.getAll())