File size: 5,217 Bytes
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const Clone = require('@hapi/hoek/lib/clone');
const Common = require('./common');
const internals = {
annotations: Symbol('annotations')
};
exports.error = function (stripColorCodes) {
if (!this._original ||
typeof this._original !== 'object') {
return this.details[0].message;
}
const redFgEscape = stripColorCodes ? '' : '\u001b[31m';
const redBgEscape = stripColorCodes ? '' : '\u001b[41m';
const endColor = stripColorCodes ? '' : '\u001b[0m';
const obj = Clone(this._original);
for (let i = this.details.length - 1; i >= 0; --i) { // Reverse order to process deepest child first
const pos = i + 1;
const error = this.details[i];
const path = error.path;
let node = obj;
for (let j = 0; ; ++j) {
const seg = path[j];
if (Common.isSchema(node)) {
node = node.clone(); // joi schemas are not cloned by hoek, we have to take this extra step
}
if (j + 1 < path.length &&
typeof node[seg] !== 'string') {
node = node[seg];
}
else {
const refAnnotations = node[internals.annotations] || { errors: {}, missing: {} };
node[internals.annotations] = refAnnotations;
const cacheKey = seg || error.context.key;
if (node[seg] !== undefined) {
refAnnotations.errors[cacheKey] = refAnnotations.errors[cacheKey] || [];
refAnnotations.errors[cacheKey].push(pos);
}
else {
refAnnotations.missing[cacheKey] = pos;
}
break;
}
}
}
const replacers = {
key: /_\$key\$_([, \d]+)_\$end\$_"/g,
missing: /"_\$miss\$_([^|]+)\|(\d+)_\$end\$_": "__missing__"/g,
arrayIndex: /\s*"_\$idx\$_([, \d]+)_\$end\$_",?\n(.*)/g,
specials: /"\[(NaN|Symbol.*|-?Infinity|function.*|\(.*)]"/g
};
let message = internals.safeStringify(obj, 2)
.replace(replacers.key, ($0, $1) => `" ${redFgEscape}[${$1}]${endColor}`)
.replace(replacers.missing, ($0, $1, $2) => `${redBgEscape}"${$1}"${endColor}${redFgEscape} [${$2}]: -- missing --${endColor}`)
.replace(replacers.arrayIndex, ($0, $1, $2) => `\n${$2} ${redFgEscape}[${$1}]${endColor}`)
.replace(replacers.specials, ($0, $1) => $1);
message = `${message}\n${redFgEscape}`;
for (let i = 0; i < this.details.length; ++i) {
const pos = i + 1;
message = `${message}\n[${pos}] ${this.details[i].message}`;
}
message = message + endColor;
return message;
};
// Inspired by json-stringify-safe
internals.safeStringify = function (obj, spaces) {
return JSON.stringify(obj, internals.serializer(), spaces);
};
internals.serializer = function () {
const keys = [];
const stack = [];
const cycleReplacer = (key, value) => {
if (stack[0] === value) {
return '[Circular ~]';
}
return '[Circular ~.' + keys.slice(0, stack.indexOf(value)).join('.') + ']';
};
return function (key, value) {
if (stack.length > 0) {
const thisPos = stack.indexOf(this);
if (~thisPos) {
stack.length = thisPos + 1;
keys.length = thisPos + 1;
keys[thisPos] = key;
}
else {
stack.push(this);
keys.push(key);
}
if (~stack.indexOf(value)) {
value = cycleReplacer.call(this, key, value);
}
}
else {
stack.push(value);
}
if (value) {
const annotations = value[internals.annotations];
if (annotations) {
if (Array.isArray(value)) {
const annotated = [];
for (let i = 0; i < value.length; ++i) {
if (annotations.errors[i]) {
annotated.push(`_$idx$_${annotations.errors[i].sort().join(', ')}_$end$_`);
}
annotated.push(value[i]);
}
value = annotated;
}
else {
for (const errorKey in annotations.errors) {
value[`${errorKey}_$key$_${annotations.errors[errorKey].sort().join(', ')}_$end$_`] = value[errorKey];
value[errorKey] = undefined;
}
for (const missingKey in annotations.missing) {
value[`_$miss$_${missingKey}|${annotations.missing[missingKey]}_$end$_`] = '__missing__';
}
}
return value;
}
}
if (value === Infinity ||
value === -Infinity ||
Number.isNaN(value) ||
typeof value === 'function' ||
typeof value === 'symbol') {
return '[' + value.toString() + ']';
}
return value;
};
};
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