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serve cached onlyoffice-compatible fonts

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This commit is contained in:
ansuz 2019-01-24 18:40:12 +01:00
parent 803e9c4560
commit f775d395f4
1 changed files with 3 additions and 18 deletions
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21
server.js
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@ -200,13 +200,6 @@ var send404 = function (res, path) {
}); });
}; };
/* SPECIAL CODE FOR ONLYOFFICE
/* Font support as onlyoffice requires fonts transformed to js */
var FONT_OBFUSCATION_MAGIC = new Buffer([
0xA0, 0x66, 0xD6, 0x20, 0x14, 0x96, 0x47, 0xfa, 0x95, 0x69, 0xB8, 0x50, 0xB0, 0x41, 0x49, 0x48
]);
var FONT_NAME_MAP = {}; var FONT_NAME_MAP = {};
[ './www/common/onlyoffice/fonts/' ].forEach(function (path) { [ './www/common/onlyoffice/fonts/' ].forEach(function (path) {
Fs.readdir(path, function (err, list) { Fs.readdir(path, function (err, list) {
@ -221,17 +214,9 @@ var FONT_NAME_MAP = {};
/* Currently not active, but might be necessary */ /* Currently not active, but might be necessary */
app.use("/common/onlyoffice/fonts/odttf/:name", function (req, res) { app.use("/common/onlyoffice/fonts/odttf/:name", function (req, res) {
var name = req.params.name.replace(/\.js$/, '').toLowerCase(); var name = req.params.name.replace(/\.js$/, '').toLowerCase();
if (!FONT_NAME_MAP[name]) { var path = Path.join('./www/common/onlyoffice/fonts/odttf/', name);
res.status(400).send('No such font'); Fs.createReadStream(path).pipe(res).on('error', function () {
return; res.status(404).send('No such font');
}
Fs.readFile(FONT_NAME_MAP[name], function (err, ret) {
if (err) { throw err; }
var maxLen = Math.min(32, ret.length);
for (var i = 0; i < maxLen; i++) {
ret[i] ^= FONT_OBFUSCATION_MAGIC[i % 16];
}
res.end(ret);
}); });
}); });