Easy MyCodes

If you take a look around, for example, the MyCodes forum at MyBB community, you'll probably notice a number of MyCodes posted there using the "(.*?)" expression. (note, previous statement is true at time of writing)

This particular expression allows almost any input to be placed by the user, which can be dangerous in certain circumstances by potentially allowing various injections.  This is perhaps due to the fact that many such "MyCode developers" really don't know how to properly use regular expressions.

This plugin aims to make it easier for administrators to write properly sanitised MyCodes which aren't vulnerable to such injections.  Instead of writing custom MyCodes in regular expression form, you just enter what you want and place appropriate tokens in the expression.
Furthermore, you can actually still use regular expressions in custom MyCodes, so no functionality is actually lost using this plugin (regular expressions need to be escaped however; more information is supplied in the AdminCP when adding/editing MyCodes).

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To demonstrate an example of an injection, this is what an innocent looking MyCode for allowing custom background colours, might look like:
Expression: \[bg=(.*?)\](.*?)\[/bg\]
Replacement: <span style="background-color: $1;">$2</span>

Perhaps it looks okay, until a user enters something like this in their post:

Code:

[bg=red; display: block; position: absolute; top: 0; left: 0; width: 100%; height: 1000%; font-size: 144pt]hahahahahaha[/bg]

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Using Easy MyCodes, the admin would use the following instead:
Expression: [bg={COLOR}]{ANYTHING}[/bg]
Replacement: <span style="background-color: $1;">$2</span>
And prevent the injection at the same time.

[XPMai]

MyBB v1.8 no longer vulnerable right?

[ZiNgA BuRgA]

???

You mean the above demonstration?  I don't believe anything's changed in MyBB 1.8 to address that, but feel free to test it yourself.

[terzier]

@Yumi.
please check my code, here

[aolko]

Hi there, how do i make optional/default parameters?
like

Code:

[mycode (optional=123)]123[/mycode] result: 123 [mycode]456[/mycode] this one will match <span style="border 1px solid {{$1|#default}}">456</span>

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also for some reason mycodes wont work in posts

but do work in usercp

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well, this post is being ignored, huh.

[aolko]

anyone?

[RateU]

I think we are not allowed using conditional statement.

[aolko]

(10-13-2015 04:41 AM)RateU Wrote:  I think we are not allowed using conditional statement.

wait, why?

[aolko]

ugh, no answer yet, just tell me how to make optional parameters

[ZiNgA BuRgA]

MyCodes never supported conditionals, and this plugin doesn't change that.
Just make two copies of the MyCode - one with the parameter, and one without.

As for signatures not working, perhaps check other plugins?  Does it work on a clean install of MyBB?

[xensor]

I have noticed on 1.8 the mycodes do not work on posts.

for some reason they get unprocessed and are entered right.

it works when I put this plug-in into inactive. Something with this plug-in doesn't work.

Code:

[box={ANYTHING}]{ANYTHING}[/box]

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it does nothing.