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<title>Code coverage report for modules/middleware/rewrite.js</title>
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<a href="../../index.html">all files</a> / <a href="index.html">modules/middleware/</a> rewrite.js
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<span class="strong">93.33% </span>
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<span class="strong">100% </span>
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<span class="strong">93.33% </span>
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<span class='fraction'>14/15</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">const escapeRegExp = require("../utils/escapeRegExp");
const isRegExp = require("../utils/isRegExp");
const {is} = require("ramda");
/**
* A middleware that provides URL rewriting behavior similar to Apache's
* mod_rewrite. The pathname of requests that match the given pattern is
* overwritten with the replacement using a simple String#replace.
*/
function rewrite(app, pattern, replacement) {
if (is(String, pattern)) {
pattern = new RegExp(`^${escapeRegExp(pattern)}$`);
}
<span class="missing-if-branch" title="if path not taken" >I</span>if (!isRegExp(pattern)) {
<span class="cstat-no" title="statement not covered" > throw new Error("Rewrite pattern must be a RegExp or String");</span>
}
replacement = replacement || <span class="branch-1 cbranch-no" title="branch not covered" >"";</span>
return function (conn) {
const pathname = conn.pathname;
// Modify the pathname if the pattern matches.
if (pattern.test(pathname)) {
conn.location.properties.pathname = conn.basename + pathname.replace(pattern, replacement);
}
return conn.call(app);
};
}
module.exports = rewrite;
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