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32 lines
907 B
Plaintext
32 lines
907 B
Plaintext
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---
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title: "Preprocessors"
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---
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## Template **Preprocessors**
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Certain pre-processors can be specified globally anywhere in the template that run as soon as the template is loaded to achieve things like random ids generated for each template run.
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### randstr
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<Note>
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Generates a [random ID](https://github.com/rs/xid) for a template on each nuclei run. This can be used anywhere in the template and will always contain the same value. `randstr` can be suffixed by a number, and new random ids will be created for those names too. Ex. `{{randstr_1}}` which will remain same across the template.
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`randstr` is also supported within matchers and can be used to match the inputs.
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</Note>
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For example:-
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```yaml
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http:
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- method: POST
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path:
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- "{{BaseURL}}/level1/application/"
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headers:
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cmd: echo '{{randstr}}'
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matchers:
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- type: word
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words:
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- '{{randstr}}'
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```
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