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making the feature detection more robust, let users with no WASM create uncompressed pastes, remove dead & duplicate code

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This commit is contained in:
El RIDO 2019-08-27 07:38:27 +02:00
parent ff68043c9f
commit 6fcd82fb85
No known key found for this signature in database
GPG key ID: 0F5C940A6BD81F92
19 changed files with 110 additions and 64 deletions
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4
i18n/bg.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"<a href=\"%s\">Вижте тази страница</a> за повече информация.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Браузъра ви може да се нуждае от HTTPS връзка за да използва WebCrypto API. Пробвай <a href=\"%s\">да минеш на HTTPS</a>."
"Браузъра ви може да се нуждае от HTTPS връзка за да използва WebCrypto API. Пробвай <a href=\"%s\">да минеш на HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/cs.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/de.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"<a href=\"%s\">Besuche diesen FAQ Eintrag</a> für weitere Informationen dazu.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Dein Browser benötigt möglicherweise eine HTTPS Verbindung um das WebCrypto API nutzen zu können. Versuche <a href=\"%s\">auf HTTPS zu wechseln</a>."
"Dein Browser benötigt möglicherweise eine HTTPS Verbindung um das WebCrypto API nutzen zu können. Versuche <a href=\"%s\">auf HTTPS zu wechseln</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Dein Browser unterstützt WebAssembly nicht, welches für zlib Komprimierung benötigt wird. Du kannst unkomprimierte Dokumente erzeugen, aber keine komprimierten lesen."
}

4
i18n/es.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/fr.json
View file

@ -170,5 +170,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"Pour plus d'informations <a href=\"%s\">consultez cette rubrique de la FAQ</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Votre navigateur peut nécessiter une connexion HTTPS pour prendre en charge l’API WebCrypto. Essayez <a href=\"%s\">de passer en HTTPS</a>."
"Votre navigateur peut nécessiter une connexion HTTPS pour prendre en charge l’API WebCrypto. Essayez <a href=\"%s\">de passer en HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/hu.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/it.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/nl.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/no.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/oc.json
View file

@ -170,5 +170,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"Per mai d’informacions <a href=\"%s\">vejatz aqueste article de FAQ</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Se pòt que vòstre navigator faga besonh d’una connexion HTTPS per èsser compatible amb l’API WebCrypto. Ensajatz de <a href=\"%s\">passar al HTTPS</a>."
"Se pòt que vòstre navigator faga besonh d’una connexion HTTPS per èsser compatible amb l’API WebCrypto. Ensajatz de <a href=\"%s\">passar al HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/pl.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/pt.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/ru.json
View file

@ -171,5 +171,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"Для продробностей <a href=\"%s\">прочтите информацию в FAQ</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Ваш браузер требует использования HTTPS подключения для поддержки WebCrypto API. Попробуйте <a href=\"%s\">переключиться на HTTPS</a>."
"Ваш браузер требует использования HTTPS подключения для поддержки WebCrypto API. Попробуйте <a href=\"%s\">переключиться на HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/sl.json
View file

@ -170,5 +170,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

4
i18n/zh.json
View file

@ -161,5 +161,7 @@
"For more information <a href=\"%s\">see this FAQ entry</a>.":
"For more information <a href=\"%s\">see this FAQ entry</a>.",
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.":
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>."
"Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.":
"Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones."
}

91
js/privatebin.js
View file

@ -789,7 +789,8 @@ jQuery.PrivateBin = (function($, RawDeflate) {
utf16To8(message)
);
if (mode === 'zlib') {
return z.deflate(message).buffer;
let zlib = (await z);
return zlib.deflate(message).buffer;
}
return message;
}
@ -809,7 +810,12 @@ jQuery.PrivateBin = (function($, RawDeflate) {
{
if (mode === 'zlib' || mode === 'none') {
if (mode === 'zlib') {
data = z.inflate(
let zlib = (await z);
if (typeof zlib === 'undefined') {
Alert.showError('Your browser doesn\'t support WebAssembly, used for zlib compression. You can create uncompressed documents, but can\'t read compressed ones.')
return '';
}
data = zlib.inflate(
new Uint8Array(data)
).buffer;
}
@ -883,7 +889,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
stringToArraybuffer(
utf16To8(password)
)
);
).catch(Alert.showError);
password = Array.prototype.map.call(
new Uint8Array(passwordBuffer),
x => ('00' + x.toString(16)).slice(-2)
@ -903,7 +909,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
{name: 'PBKDF2'}, // we use PBKDF2 for key derivation
false, // the key may not be exported
['deriveKey'] // we may only use it for key derivation
);
).catch(Alert.showError);
// derive a stronger key for use with AES
return window.crypto.subtle.deriveKey(
@ -920,7 +926,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
},
false, // the key may not be exported
['encrypt', 'decrypt'] // we may only use it for en- and decryption
);
).catch(Alert.showError);
}
/**
@ -959,7 +965,12 @@ jQuery.PrivateBin = (function($, RawDeflate) {
{
// AES in Galois Counter Mode, keysize 256 bit,
// authentication tag 128 bit, 10000 iterations in key derivation
const spec = [
const compression = (
typeof (await z) === 'undefined' ?
'none' : // client lacks support for WASM
$('body').data('compression') || 'zlib'
),
spec = [
getRandomBytes(16), // initialization vector
getRandomBytes(8), // salt
100000, // iterations
@ -967,7 +978,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
128, // tag size
'aes', // algorithm
'gcm', // algorithm mode
$('body').data('compression') || 'zlib' // compression
compression // compression
], encodedSpec = [];
for (let i = 0; i < spec.length; ++i) {
encodedSpec[i] = i < 2 ? btoa(spec[i]) : spec[i];
@ -987,8 +998,8 @@ jQuery.PrivateBin = (function($, RawDeflate) {
await window.crypto.subtle.encrypt(
cryptoSettings(JSON.stringify(adata), spec),
await deriveKey(key, password, spec),
await compress(message, spec[7])
)
await compress(message, compression)
).catch(Alert.showError)
)
),
adata
@ -1043,7 +1054,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
stringToArraybuffer(
atob(cipherMessage)
)
),
).catch(Alert.showError),
spec[7]
);
} catch(err) {
@ -1194,7 +1205,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
me.getPasteId = function()
{
const idRegEx = /^[a-z0-9]{16}$/;
const idRegExFind = /[a-z0-9]{16}/;
// return cached value
if (id !== null) {
@ -1573,6 +1583,22 @@ jQuery.PrivateBin = (function($, RawDeflate) {
handleNotification(1, $statusMessage, message, icon);
};
/**
* display a warning message
*
* This automatically passes the text to I18n for translation.
*
* @name Alert.showWarning
* @function
* @param {string|array} message string, use an array for %s/%d options
* @param {string|null} icon optional, the icon to show, default:
* leave previous icon
*/
me.showWarning = function(message, icon)
{
handleNotification(2, $errorMessage, message, icon);
};
/**
* display an error message
*
@ -1699,7 +1725,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
currentIcon = [
'glyphicon-time', // loading icon
'glyphicon-info-sign', // status icon
'', // reserved for warning, not used yet
'glyphicon-warning-sign', // warning icon
'glyphicon-alert' // error icon
];
};
@ -1768,14 +1794,14 @@ jQuery.PrivateBin = (function($, RawDeflate) {
return;
}
}
Alert.showError(
I18n._('Cannot parse response from URL shortener.')
);
Alert.showError('Cannot parse response from URL shortener.');
}
})
.fail(function(data, textStatus, errorThrown) {
console.error(textStatus, errorThrown);
// we don't know why it failed, could be CORS of the external server not setup properly, in which case we follow old behavior to open it in new tab
// we don't know why it failed, could be CORS of the external
// server not setup properly, in which case we follow old
// behavior to open it in new tab
window.open(
`${$shortenButton.data('shortener')}${encodeURIComponent($pasteUrl.attr('href'))}`,
'_blank',
@ -2731,9 +2757,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
// revert loading status…
me.hideAttachment();
me.hideAttachmentPreview();
Alert.showError(
I18n._('Your browser does not support uploading encrypted files. Please use a newer browser.')
);
Alert.showWarning('Your browser does not support uploading encrypted files. Please use a newer browser.');
return;
}
@ -4194,8 +4218,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
const PasteEncrypter = (function () {
const me = {};
let requirementsChecked = false;
/**
* called after successful paste upload
*
@ -4428,16 +4450,13 @@ jQuery.PrivateBin = (function($, RawDeflate) {
});
cipherMessage['attachment'] = await fileReading;
} else {
Alert.showError(
I18n._('Cannot process attachment data.')
);
throw new TypeError('Cannot process attachment data.');
const error = 'Cannot process attachment data.';
Alert.showError(error);
throw new TypeError(error);
}
} catch (error) {
console.error(error);
Alert.showError(
I18n._('Cannot retrieve attachment.')
);
Alert.showError('Cannot retrieve attachment.');
throw error;
}
}
@ -4528,8 +4547,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
}
}
let format = '',
text = '';
if (paste.v > 1) {
// version 2 paste
const pasteMessage = JSON.parse(pastePlain);
@ -4630,9 +4647,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
// log detailed error, but display generic translation
console.error(message);
Alert.showError(
I18n._('Could not decrypt data. Did you enter a wrong password? Retry with the button at the top.')
);
Alert.showError('Could not decrypt data. Did you enter a wrong password? Retry with the button at the top.');
// reset password, so it can be re-entered
Prompt.reset();
@ -4702,8 +4717,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
* initial (security) check
*
* @name InitialCheck
* @param {object} window
* @param {object} document
* @class
*/
const InitialCheck = (function () {
@ -4848,6 +4861,9 @@ jQuery.PrivateBin = (function($, RawDeflate) {
$('#httpnotice').removeClass('hidden');
}
z = zlib.catch(function () {
Alert.showWarning('Your browser doesn\'t support WebAssembly, used for zlib compression. You can create uncompressed documents, but can\'t read compressed ones.');
});
return true;
}
@ -4926,9 +4942,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
// missing decryption key (or paste ID) in URL?
if (window.location.hash.length === 0) {
Alert.showError(
I18n._('Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)')
);
Alert.showError('Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)');
return;
}
}
@ -5054,7 +5068,6 @@ jQuery.PrivateBin = (function($, RawDeflate) {
Prompt.init();
TopNav.init();
UiHelper.init();
z = (await zlib);
if (!InitialCheck.init()) {
// something major is wrong, stop right away
return;

3
js/test/CryptTool.js
View file

@ -8,6 +8,9 @@ describe('CryptTool', function () {
await new Promise(resolve => setTimeout(resolve, 1900));
});
// ensure zlib is getting loaded
$.PrivateBin.InitialCheck.init();
this.timeout(30000);
it('can en- and decrypt any message', function () {
jsc.assert(jsc.forall(

2
tpl/bootstrap.php
View file

@ -71,7 +71,7 @@ if ($MARKDOWN):
endif;
?>
<script type="text/javascript" data-cfasync="false" src="js/purify-1.0.11.js" integrity="sha512-p7UyJuyBkhMcMgE4mDsgK0Lz70OvetLefua1oXs1OujWv9gOxh4xy8InFux7bZ4/DAZsTmO4rgVwZW9BHKaTaw==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-86VTqw2HsaCQ0DAunK2MH68P+8RLbbaK7HZP8nwDtwNoF44usxDCptmD8TC+zwQc7HM46AkrvVFb3ZkIb6VhMQ==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-aACEZbSPO13YywWwP/gTTBdZgYlKuDfKAJU5PJyqVRsuZiT7rAAhFRf1KdF8OX8QFHqTrQhQ47qlFtIslJMnkg==" crossorigin="anonymous"></script>
<!--[if IE]>
<style type="text/css">body {padding-left:60px;padding-right:60px;} #ienotice {display:block;}</style>
<![endif]-->

2
tpl/page.php
View file

@ -49,7 +49,7 @@ if ($MARKDOWN):
endif;
?>
<script type="text/javascript" data-cfasync="false" src="js/purify-1.0.11.js" integrity="sha512-p7UyJuyBkhMcMgE4mDsgK0Lz70OvetLefua1oXs1OujWv9gOxh4xy8InFux7bZ4/DAZsTmO4rgVwZW9BHKaTaw==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-86VTqw2HsaCQ0DAunK2MH68P+8RLbbaK7HZP8nwDtwNoF44usxDCptmD8TC+zwQc7HM46AkrvVFb3ZkIb6VhMQ==" crossorigin="anonymous"></script>
<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-aACEZbSPO13YywWwP/gTTBdZgYlKuDfKAJU5PJyqVRsuZiT7rAAhFRf1KdF8OX8QFHqTrQhQ47qlFtIslJMnkg==" crossorigin="anonymous"></script>
<!--[if IE]>
<style type="text/css">body {padding-left:60px;padding-right:60px;} #ienotice {display:block;}</style>
<![endif]-->