Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Remove leading whitespace from the XML under test #41027

Merged
merged 1 commit into from Jan 6, 2021
Merged

Remove leading whitespace from the XML under test #41027

merged 1 commit into from Jan 6, 2021

Conversation

flavorjones
Copy link
Member

Summary

This test was originally written with the intention of asserting that
a runtime error related to XXE will be raised by the parser. However,
because initial whitespace is present before the doctype,
XmlMini_NokogiriSAX::HashBuilder has been raising an unrelated error
in this test.

Related to #41015

Other Information

Using Nokogiri v1.10.10, the error being raised without this change
is:

XML declaration allowed only at the start of the document

but with this change we see the expected exception from the libxml2
SAX parser:

Entity 'a' not defined

Using Nokogiri v1.11.0, in which error handling is broken (see
sparklemotion/nokogiri#2168), without this change we see an exception
being raised by HashBuilder because characters is called before
start_element and so the content hash isn't initialized (see

The error being raised with this change is:

Parse stack not empty!

which is not the error we want (because of
sparklemotion/nokogiri#2168), but the test still passes.

Using Nokogiri with the fix from sparklemotion/nokogiri#2169, the
error being raised without this change is:

XML declaration allowed only at the start of the document

but with this change will be:

Entity 'a' not defined

and we're back to the expected behavior.

This test was originally written with the intention of asserting that
a runtime error related to XXE will be raised by the parser. However,
because initial whitespace is present before the doctype,
XmlMini_NokogiriSAX::HashBuilder has been raising an unrelated error
in this test.

Related to #41015

---

Using Nokogiri v1.10.10, the error being raised without this change
is:

> XML declaration allowed only at the start of the document

but with this change we see the expected exception from the libxml2
SAX parser:

> Entity 'a' not defined

Using Nokogiri v1.11.0, in which error handling is broken (see
sparklemotion/nokogiri#2168), without this change we see an exception
being raised by HashBuilder because `characters` is called before
`start_element` and so the content hash isn't initialized (see

The error being raised with this change is:

> Parse stack not empty!

which is not the error we want (because of
sparklemotion/nokogiri#2168), but the test still passes.

Using Nokogiri with the fix from sparklemotion/nokogiri#2169, the
error being raised without this change is:

> XML declaration allowed only at the start of the document

but with this change will be:

> Entity 'a' not defined

and we're back to the expected behavior.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Development

Successfully merging this pull request may close these issues.

None yet

2 participants