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Validate hostname in uri #2846

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Validate hostname in uri #2846

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4234132
Add hostname option to domain obj
trizotti Sep 23, 2022
b23ce51
Add hostname validation + tests
trizotti Sep 23, 2022
f1f0322
Remove unnecessary import
trizotti Sep 23, 2022
25777d5
Fix lint issues
trizotti Oct 3, 2022
3cb8376
Add support for array of hostnames + tests
trizotti Oct 3, 2022
9c83bd5
Merge branch 'master' into validate-hostname-in-uri
trizotti Oct 3, 2022
a90120b
Add support to mixed arrays rx and strings
trizotti Oct 13, 2022
4d29bab
Remove unecessary operator
trizotti Oct 13, 2022
2e754a3
Add docs for string.uri.hostname
trizotti Oct 13, 2022
06483be
Refactorarray check
trizotti Oct 14, 2022
4053a1b
Merge branch 'hapijs:master' into validate-hostname-in-uri
trizotti Oct 14, 2022
5c2a000
Add test and clean up the code
trizotti Oct 17, 2022
45c32ee
Fix typo
trizotti Oct 17, 2022
1a9f9a5
Remove unnecessary test
trizotti Oct 17, 2022
53de422
Refactoring
trizotti Oct 24, 2022
d74362c
Remove unnecessary type conversion
trizotti Oct 24, 2022
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11 changes: 10 additions & 1 deletion lib/types/string.js
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ const Uri = require('@sideway/address/lib/uri');

const Any = require('./any');
const Common = require('../common');
const { throws } = require('assert')
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const internals = {
Expand Down Expand Up @@ -639,7 +640,7 @@ module.exports = Any.extend({
Common.assertOptions(options, ['allowRelative', 'allowQuerySquareBrackets', 'domain', 'relativeOnly', 'scheme']);

if (options.domain) {
Common.assertOptions(options.domain, ['allowFullyQualified', 'allowUnicode', 'maxDomainSegments', 'minDomainSegments', 'tlds']);
Common.assertOptions(options.domain, ['allowFullyQualified', 'allowUnicode', 'maxDomainSegments', 'minDomainSegments', 'tlds', 'hostname']);
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If this is going to be part of domain, you should probably exclude it from the call to isValid to avoid any possible side-effect from an evolution of that module.

}

const { regex, scheme } = Uri.regex(options);
Expand All @@ -662,6 +663,13 @@ module.exports = Any.extend({
return helpers.error('string.domain', { value: matched });
}

if(options?.domain?.hostname){
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domain is already checked a few lines above, you can probably refactor that if to handle your case.

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Are you talking about the domain variable few lines above (line 659)?
I think it's not the same as options.domain...

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Technically, it kind of is. Look at the $_addRule just above.

options (the 3rd argument of validate) is basically the raw argument you provided.

domain (the 4th argument) is the post-processed version of that raw argument through the call to addressOptions, which I think should be augmented to validate that hostname satisfies expectations.

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I added info to the docs and also support for regex and arrays.

const { hostname } = options.domain;
if(hostname !== matched){
return helpers.error('string.uri.hostname', { value: matched });
}
}

return value;
}

Expand Down Expand Up @@ -721,6 +729,7 @@ module.exports = Any.extend({
'string.pattern.invert.name': '{{#label}} with value {:[.]} matches the inverted {{#name}} pattern',
'string.trim': '{{#label}} must not have leading or trailing whitespace',
'string.uri': '{{#label}} must be a valid uri',
'string.uri.hostname': '{{#label}} is not from given hostname',
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The error might be more useful if it detailed what it expected, like so:

Suggested change
'string.uri.hostname': '{{#label}} is not from given hostname',
'string.uri.hostname': '{{#label}} does not match {{#expected}} hostname'

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@trizotti trizotti Oct 13, 2022 •
edited
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I made some changes to make the error more useful, following the example.

'string.uriCustomScheme': '{{#label}} must be a valid uri with a scheme matching the {{#scheme}} pattern',
'string.uriRelativeOnly': '{{#label}} must be a valid relative uri',
'string.uppercase': '{{#label}} must only contain uppercase characters'
Expand Down
10 changes: 10 additions & 0 deletions test/types/string.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8582,6 +8582,16 @@ describe('string', () => {

expect(() => Joi.string().uri({ foo: 'bar', baz: 'qux' })).to.throw('Options contain unknown keys: foo,baz');
});

it('validates if uri is from a given hostname', () => {
const schema = Joi.string().uri({ scheme: 'https', domain: { hostname: 'example.com'}});
Helper.validate(schema, [
['https://example.com', true],
['https://example.com/test', true],
['https://test.com', false, '"value" is not from given hostname'],
['https://test.com/example', false, '"value" is not from given hostname']
]);
});
});

describe('valid()', () => {
Expand Down