<?php

require_once 'HTMLPurifier/URI.php';
require_once 'HTMLPurifier/URIParser.php';

require_once 'HTMLPurifier/URIScheme.php';
require_once 'HTMLPurifier/URISchemeRegistry.php';

require_once 'HTMLPurifier/URIScheme/http.php';
require_once 'HTMLPurifier/URIScheme/ftp.php';
require_once 'HTMLPurifier/URIScheme/https.php';
require_once 'HTMLPurifier/URIScheme/mailto.php';
require_once 'HTMLPurifier/URIScheme/news.php';
require_once 'HTMLPurifier/URIScheme/nntp.php';

// WARNING: All the URI schemes are far to relaxed, we need to tighten
// the checks.

class HTMLPurifier_URISchemeTest extends HTMLPurifier_Harness
{
    
    function assertValidation($uri, $expect_uri = true) {
        $parser = new HTMLPurifier_URIParser();
        if ($expect_uri === true) $uri = $expect_uri;
        $uri = $parser->parse($uri);
        if ($expect_uri !== false) {
            $expect_uri = $parser->parse($expect_uri);
        }
        // convenience hack: the scheme should be explicitly specified
        $scheme = $uri->getSchemeObj($this->config, $this->context);
        $result = $scheme->validate($uri, $this->config, $this->context);
        if ($expect_uri !== false) {
            $this->assertTrue($result);
            $this->assertIdentical($uri, $expect_uri);
        } else {
            $this->assertFalse($result);
        }
    }
    
    function test_http_regular() {
        $this->assertValidation(
            'http://example.com/?s=q#fragment'
        );
    }
    
    function test_http_removeDefaultPort() {
        $this->assertValidation(
            'http://example.com:80',
            'http://example.com'
        );
    }
    
    function test_http_removeUserInfo() {
        $this->assertValidation(
            'http://bob@example.com',
            'http://example.com'
        );
    }
    
    function test_http_preserveNonDefaultPort() {
        $this->assertValidation(
            'http://example.com:8080'
        );
    }
    
    function test_https_regular() {
        $this->assertValidation(
            'https://user@example.com:443/?s=q#frag',
            'https://example.com/?s=q#frag'
        );
    }
    
    function test_ftp_regular() {
        $this->assertValidation(
            'ftp://user@example.com/path'
        );
    }
    
    function test_ftp_removeDefaultPort() {
        $this->assertValidation(
            'ftp://example.com:21',
            'ftp://example.com'
        );
    }
    
    function test_ftp_removeQueryString() {
        $this->assertValidation(
            'ftp://example.com?s=q',
            'ftp://example.com'
        );
    }
    
    function test_ftp_preserveValidTypecode() {
        $this->assertValidation(
            'ftp://example.com/file.txt;type=a'
        );
    }
    
    function test_ftp_removeInvalidTypecode() {
        $this->assertValidation(
            'ftp://example.com/file.txt;type=z',
            'ftp://example.com/file.txt'
        );
    }
    
    function test_ftp_encodeExtraSemicolons() {
        $this->assertValidation(
            'ftp://example.com/too;many;semicolons=1',
            'ftp://example.com/too%3Bmany%3Bsemicolons=1'
        );
    }
    
    function test_news_regular() {
        $this->assertValidation(
            'news:gmane.science.linguistics'
        );
    }
    
    function test_news_explicit() {
        $this->assertValidation(
            'news:642@eagle.ATT.COM'
        );
    }
    
    function test_news_removeNonPathComponents() {
        $this->assertValidation(
            'news://user@example.com:80/rec.music?path=foo#frag',
            'news:/rec.music#frag'
        );
    }
    
    function test_nntp_regular() {
        $this->assertValidation(
            'nntp://news.example.com/alt.misc/42#frag'
        );
    }
    
    function test_nntp_removalOfRedundantOrUselessComponents() {
        $this->assertValidation(
            'nntp://user@news.example.com:119/alt.misc/42?s=q#frag',
            'nntp://news.example.com/alt.misc/42#frag'
        );
    }
    
    function test_mailto_regular() {
        $this->assertValidation(
            'mailto:bob@example.com'
        );
    }
    
    function test_mailto_removalOfRedundantOrUselessComponents() {
        $this->assertValidation(
            'mailto://user@example.com:80/bob@example.com?subject=Foo#frag',
            'mailto:/bob@example.com?subject=Foo#frag'
        );
    }
    
}