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always test ext in tiddler title and remove it (#5329)

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* always test ext in tiddler title and remove it

* patch custom ext length vulernability
This commit is contained in:
Joshua Fontany 2021-01-03 03:50:14 -08:00 committed by GitHub
parent e96a54c753
commit 03626bc142
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 4 deletions
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12
core/modules/utils/filesystem.js
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@ -342,10 +342,6 @@ exports.generateTiddlerFilepath = function(title,options) {
filepath = originalpath.substring(0,originalpath.length - ext.length);
} else if(!filepath) {
filepath = title;
// If the filepath already ends in the extension then remove it
if(filepath.substring(filepath.length - extension.length) === extension) {
filepath = filepath.substring(0,filepath.length - extension.length);
}
// Remove any forward or backward slashes so we don't create directories
filepath = filepath.replace(/\/|\\/g,"_");
}
@ -354,12 +350,20 @@ exports.generateTiddlerFilepath = function(title,options) {
// Don't let the filename start with any dots because such files are invisible on *nix
filepath = filepath.replace(/^\.+/g,"_");
}
// If the filepath already ends in the extension then remove it
if(filepath.substring(filepath.length - extension.length) === extension) {
filepath = filepath.substring(0,filepath.length - extension.length);
}
// Remove any characters that can't be used in cross-platform filenames
filepath = $tw.utils.transliterate(filepath.replace(/<|>|~|\:|\"|\||\?|\*|\^/g,"_"));
// Truncate the filename if it is too long
if(filepath.length > 200) {
filepath = filepath.substr(0,200);
}
// Truncate the extension if it is too long
if(extension.length > 32) {
extension = extension.substr(0,32);
}
// If the resulting filename is blank (eg because the title is just punctuation characters)
if(!filepath) {
// ...then just use the character codes of the title