update

node_modules/fast-redact/lib/redactor.js

@@ -0,0 +1,94 @@
+'use strict'
+
+const rx = require('./rx')
+
+module.exports = redactor
+
+function redactor ({ secret, serialize, wcLen, strict, isCensorFct }, state) {
+  /* eslint-disable-next-line */
+  const redact = Function('o', `
+    if (typeof o !== 'object' || o == null) {
+      ${strictImpl(strict, serialize)}
+    }
+    const { censor, secret } = this
+    ${redactTmpl(secret, isCensorFct)}
+    this.compileRestore()
+    ${dynamicRedactTmpl(wcLen > 0, isCensorFct)}
+    ${resultTmpl(serialize)}
+  `).bind(state)
+
+  if (serialize === false) {
+    redact.restore = (o) => state.restore(o)
+  }
+
+  return redact
+}
+
+function redactTmpl (secret, isCensorFct) {
+  return Object.keys(secret).map((path) => {
+    const { escPath, leadingBracket } = secret[path]
+    const skip = leadingBracket ? 1 : 0
+    const delim = leadingBracket ? '' : '.'
+    const hops = []
+    var match
+    while ((match = rx.exec(path)) !== null) {
+      const [ , ix ] = match
+      const { index, input } = match
+      if (index > skip) hops.push(input.substring(0, index - (ix ? 0 : 1)))
+    }
+    var existence = hops.map((p) => `o${delim}${p}`).join(' && ')
+    if (existence.length === 0) existence += `o${delim}${path} != null`
+    else existence += ` && o${delim}${path} != null`
+
+    const circularDetection = `
+      switch (true) {
+        ${hops.reverse().map((p) => `
+          case o${delim}${p} === censor:
+            secret[${escPath}].circle = ${JSON.stringify(p)}
+            break
+        `).join('\n')}
+      }
+    `
+    return `
+      if (${existence}) {
+        const val = o${delim}${path}
+        if (val === censor) {
+          secret[${escPath}].precensored = true
+        } else {
+          secret[${escPath}].val = val
+          o${delim}${path} = ${isCensorFct ? 'censor(val)' : 'censor'}
+          ${circularDetection}
+        }
+      }
+    `
+  }).join('\n')
+}
+
+function dynamicRedactTmpl (hasWildcards, isCensorFct) {
+  return hasWildcards === true ? `
+    {
+      const { wildcards, wcLen, groupRedact, nestedRedact } = this
+      for (var i = 0; i < wcLen; i++) {
+        const { before, beforeStr, after, nested } = wildcards[i]
+        if (nested === true) {
+          secret[beforeStr] = secret[beforeStr] || []
+          nestedRedact(secret[beforeStr], o, before, after, censor, ${isCensorFct})
+        } else secret[beforeStr] = groupRedact(o, before, censor, ${isCensorFct})
+      }
+    }
+  ` : ''
+}
+
+function resultTmpl (serialize) {
+  return serialize === false ? `return o` : `
+    var s = this.serialize(o)
+    this.restore(o)
+    return s
+  `
+}
+
+function strictImpl (strict, serialize) {
+  return strict === true
+    ? `throw Error('fast-redact: primitives cannot be redacted')`
+    : serialize === false ? `return o` : `return this.serialize(o)`
+}