cis-kuldeep/PyBitmessage-2021-04-27
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More lightweight URI regexp

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- the old one can take a lot of resources and be misused for a DoS
- this still nees to be tested if it is flexible enough
- also fix link click popup
This commit is contained in:
Peter Šurda 2018-02-08 06:52:33 +01:00
parent 08bb85a952
commit f870bcc6f7
Signed by untrusted user: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
2 changed files with 3 additions and 2 deletions
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2
src/bitmessageqt/messageview.py
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@ -70,7 +70,7 @@ class MessageView(QtGui.QTextBrowser):
return return
reply = QtGui.QMessageBox.warning(self, reply = QtGui.QMessageBox.warning(self,
QtGui.QApplication.translate("MessageView", "Follow external link"), QtGui.QApplication.translate("MessageView", "Follow external link"),
QtGui.QApplication.translate("MessageView", "The link \"%1\" will open in a browser. It may be a security risk, it could de-anonymise you or download malicious data. Are you sure?").arg(str(link.toString())), QtGui.QApplication.translate("MessageView", "The link \"%1\" will open in a browser. It may be a security risk, it could de-anonymise you or download malicious data. Are you sure?").arg(unicode(link.toString())),
QtGui.QMessageBox.Yes, QtGui.QMessageBox.No) QtGui.QMessageBox.Yes, QtGui.QMessageBox.No)
if reply == QtGui.QMessageBox.Yes: if reply == QtGui.QMessageBox.Yes:
QtGui.QDesktopServices.openUrl(link) QtGui.QDesktopServices.openUrl(link)

3
src/bitmessageqt/safehtmlparser.py
View File

@ -22,7 +22,8 @@ class SafeHTMLParser(HTMLParser):
replaces_pre = [["&", "&amp;"], ["\"", "&quot;"], ["<", "&lt;"], [">", "&gt;"]] replaces_pre = [["&", "&amp;"], ["\"", "&quot;"], ["<", "&lt;"], [">", "&gt;"]]
replaces_post = [["\n", "<br/>"], ["\t", "&nbsp;&nbsp;&nbsp;&nbsp;"], [" ", "&nbsp; "], [" ", "&nbsp; "], ["<br/> ", "<br/>&nbsp;"]] replaces_post = [["\n", "<br/>"], ["\t", "&nbsp;&nbsp;&nbsp;&nbsp;"], [" ", "&nbsp; "], [" ", "&nbsp; "], ["<br/> ", "<br/>&nbsp;"]]
src_schemes = [ "data" ] src_schemes = [ "data" ]
uriregex1 = re.compile(r'(?i)\b((?:(https?|ftp|bitcoin):(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?]))') #uriregex1 = re.compile(r'(?i)\b((?:(https?|ftp|bitcoin):(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?]))')
uriregex1 = re.compile(r'((https?|ftp|bitcoin):(?:/{1,3}|[a-z0-9%])(?:[a-zA-Z]|[0-9]|[$-_@.&+#]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)')
uriregex2 = re.compile(r'<a href="([^"]+)&amp;') uriregex2 = re.compile(r'<a href="([^"]+)&amp;')
emailregex = re.compile(r'\b([A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,})\b') emailregex = re.compile(r'\b([A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,})\b')