CasperSecurity
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.JSXParser = void 0;
var character_1 = require("./character");
var JSXNode = require("./jsx-nodes");
var jsx_syntax_1 = require("./jsx-syntax");
var Node = require("./nodes");
var parser_1 = require("./parser");
var token_1 = require("./token");
var xhtml_entities_1 = require("./xhtml-entities");
token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier';
token_1.TokenName[101 /* Text */] = 'JSXText';
// Fully qualified element name, e.g. <svg:path> returns "svg:path"
function getQualifiedElementName(elementName) {
var qualifiedName;
switch (elementName.type) {
case jsx_syntax_1.JSXSyntax.JSXIdentifier:
var id = elementName;
qualifiedName = id.name;
break;
case jsx_syntax_1.JSXSyntax.JSXNamespacedName:
var ns = elementName;
qualifiedName = getQualifiedElementName(ns.namespace) + ':' +
getQualifiedElementName(ns.name);
break;
case jsx_syntax_1.JSXSyntax.JSXMemberExpression:
var expr = elementName;
qualifiedName = getQualifiedElementName(expr.object) + '.' +
getQualifiedElementName(expr.property);
break;
/* istanbul ignore next */
default:
break;
}
return qualifiedName;
}
var JSXParser = /** @class */ (function (_super) {
__extends(JSXParser, _super);
function JSXParser(code, options, delegate) {
return _super.call(this, code, options, delegate) || this;
}
JSXParser.prototype.parsePrimaryExpression = function () {
return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this);
};
JSXParser.prototype.startJSX = function () {
// Unwind the scanner before the lookahead token.
this.scanner.index = this.startMarker.index;
this.scanner.lineNumber = this.startMarker.line;
this.scanner.lineStart = this.startMarker.index - this.startMarker.column;
};
JSXParser.prototype.finishJSX = function () {
// Prime the next lookahead.
this.nextToken();
};
JSXParser.prototype.reenterJSX = function () {
this.startJSX();
this.expectJSX('}');
// Pop the closing '}' added from the lookahead.
if (this.config.tokens) {
this.tokens.pop();
}
};
JSXParser.prototype.createJSXNode = function () {
this.collectComments();
return {
index: this.scanner.index,
line: this.scanner.lineNumber,
column: this.scanner.index - this.scanner.lineStart
};
};
JSXParser.prototype.createJSXChildNode = function () {
return {
index: this.scanner.index,
line: this.scanner.lineNumber,
column: this.scanner.index - this.scanner.lineStart
};
};
JSXParser.prototype.scanXHTMLEntity = function (quote) {
var result = '&';
var valid = true;
var terminated = false;
var numeric = false;
var hex = false;
while (!this.scanner.eof() && valid && !terminated) {
var ch = this.scanner.source[this.scanner.index];
if (ch === quote) {
break;
}
terminated = (ch === ';');
result += ch;
++this.scanner.index;
if (!terminated) {
switch (result.length) {
case 2:
// e.g. '{'
numeric = (ch === '#');
break;
case 3:
if (numeric) {
// e.g. 'A'
hex = (ch === 'x');
valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0));
numeric = numeric && !hex;
}
break;
default:
valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0)));
valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0)));
break;
}
}
}
if (valid && terminated && result.length > 2) {
// e.g. 'A' becomes just '#x41'
var str = result.substr(1, result.length - 2);
if (numeric && str.length > 1) {
result = String.fromCharCode(parseInt(str.substr(1), 10));
}
else if (hex && str.length > 2) {
result = String.fromCharCode(parseInt('0' + str.substr(1), 16));
}
else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) {
result = xhtml_entities_1.XHTMLEntities[str];
}
}
return result;
};
// Scan the next JSX token. This replaces Scanner#lex when in JSX mode.
JSXParser.prototype.lexJSX = function () {
var cp = this.scanner.source.charCodeAt(this.scanner.index);
// < > / : = { }
if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) {
var value = this.scanner.source[this.scanner.index++];
return {
type: 7 /* Punctuator */,
value: value,
lineNumber: this.scanner.lineNumber,
lineStart: this.scanner.lineStart,
start: this.scanner.index - 1,
end: this.scanner.index
};
}
// " '
if (cp === 34 || cp === 39) {
var start = this.scanner.index;
var quote = this.scanner.source[this.scanner.index++];
var str = '';
while (!this.scanner.eof()) {
var ch = this.scanner.source[this.scanner.index++];
if (ch === quote) {
break;
}
else if (ch === '&') {
str += this.scanXHTMLEntity(quote);
}
else {
str += ch;
}
}
return {
type: 8 /* StringLiteral */,
value: str,
lineNumber: this.scanner.lineNumber,
lineStart: this.scanner.lineStart,
start: start,
end: this.scanner.index
};
}
// ... or .
if (cp === 46) {
var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1);
var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2);
var value = (n1 === 46 && n2 === 46) ? '...' : '.';
var start = this.scanner.index;
this.scanner.index += value.length;
return {
type: 7 /* Punctuator */,
value: value,
lineNumber: this.scanner.lineNumber,
lineStart: this.scanner.lineStart,
start: start,
end: this.scanner.index
};
}
// `
if (cp === 96) {
// Only placeholder, since it will be rescanned as a real assignment expression.
return {
type: 10 /* Template */,
value: '',
lineNumber: this.scanner.lineNumber,
lineStart: this.scanner.lineStart,
start: this.scanner.index,
end: this.scanner.index
};
}
// Identifer can not contain backslash (char code 92).
if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) {
var start = this.scanner.index;
++this.scanner.index;
while (!this.scanner.eof()) {
var ch = this.scanner.source.charCodeAt(this.scanner.index);
if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) {
++this.scanner.index;
}
else if (ch === 45) {
// Hyphen (char code 45) can be part of an identifier.
++this.scanner.index;
}
else {
break;
}
}
var id = this.scanner.source.slice(start, this.scanner.index);
return {
type: 100 /* Identifier */,
value: id,
lineNumber: this.scanner.lineNumber,
lineStart: this.scanner.lineStart,
start: start,
end: this.scanner.index
};
}
return this.scanner.lex();
};
JSXParser.prototype.nextJSXToken = function () {
this.collectComments();
this.startMarker.index = this.scanner.index;
this.startMarker.line = this.scanner.lineNumber;
this.startMarker.column = this.scanner.index - this.scanner.lineStart;
var token = this.lexJSX();
this.lastMarker.index = this.scanner.index;
this.lastMarker.line = this.scanner.lineNumber;
this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
if (this.config.tokens) {
this.tokens.push(this.convertToken(token));
}
return token;
};
JSXParser.prototype.nextJSXText = function () {
this.startMarker.index = this.scanner.index;
this.startMarker.line = this.scanner.lineNumber;
this.startMarker.column = this.scanner.index - this.scanner.lineStart;
var start = this.scanner.index;
var text = '';
while (!this.scanner.eof()) {
var ch = this.scanner.source[this.scanner.index];
if (ch === '{' || ch === '<') {
break;
}
++this.scanner.index;
text += ch;
if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
++this.scanner.lineNumber;
if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') {
++this.scanner.index;
}
this.scanner.lineStart = this.scanner.index;
}
}
this.lastMarker.index = this.scanner.index;
this.lastMarker.line = this.scanner.lineNumber;
this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
var token = {
type: 101 /* Text */,
value: text,
lineNumber: this.scanner.lineNumber,
lineStart: this.scanner.lineStart,
start: start,
end: this.scanner.index
};
if ((text.length > 0) && this.config.tokens) {
this.tokens.push(this.convertToken(token));
}
return token;
};
JSXParser.prototype.peekJSXToken = function () {
var state = this.scanner.saveState();
this.scanner.scanComments();
var next = this.lexJSX();
this.scanner.restoreState(state);
return next;
};
// Expect the next JSX token to match the specified punctuator.
// If not, an exception will be thrown.
JSXParser.prototype.expectJSX = function (value) {
var token = this.nextJSXToken();
if (token.type !== 7 /* Punctuator */ || token.value !== value) {
this.throwUnexpectedToken(token);
}
};
// Return true if the next JSX token matches the specified punctuator.
JSXParser.prototype.matchJSX = function (value) {
var next = this.peekJSXToken();
return next.type === 7 /* Punctuator */ && next.value === value;
};
JSXParser.prototype.parseJSXIdentifier = function () {
var node = this.createJSXNode();
var token = this.nextJSXToken();
if (token.type !== 100 /* Identifier */) {
this.throwUnexpectedToken(token);
}
return this.finalize(node, new JSXNode.JSXIdentifier(token.value));
};
JSXParser.prototype.parseJSXElementName = function () {
var node = this.createJSXNode();
var elementName = this.parseJSXIdentifier();
if (this.matchJSX(':')) {
var namespace = elementName;
this.expectJSX(':');
var name_1 = this.parseJSXIdentifier();
elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1));
}
else if (this.matchJSX('.')) {
while (this.matchJSX('.')) {
var object = elementName;
this.expectJSX('.');
var property = this.parseJSXIdentifier();
elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property));
}
}
return elementName;
};
JSXParser.prototype.parseJSXAttributeName = function () {
var node = this.createJSXNode();
var attributeName;
var identifier = this.parseJSXIdentifier();
if (this.matchJSX(':')) {
var namespace = identifier;
this.expectJSX(':');
var name_2 = this.parseJSXIdentifier();
attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2));
}
else {
attributeName = identifier;
}
return attributeName;
};
JSXParser.prototype.parseJSXStringLiteralAttribute = function () {
var node = this.createJSXNode();
var token = this.nextJSXToken();
if (token.type !== 8 /* StringLiteral */) {
this.throwUnexpectedToken(token);
}
var raw = this.getTokenRaw(token);
return this.finalize(node, new Node.Literal(token.value, raw));
};
JSXParser.prototype.parseJSXExpressionAttribute = function () {
var node = this.createJSXNode();
this.expectJSX('{');
this.finishJSX();
if (this.match('}')) {
this.tolerateError('JSX attributes must only be assigned a non-empty expression');
}
var expression = this.parseAssignmentExpression();
this.reenterJSX();
return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
};
JSXParser.prototype.parseJSXAttributeValue = function () {
return this.matchJSX('{') ? this.parseJSXExpressionAttribute() :
this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute();
};
JSXParser.prototype.parseJSXNameValueAttribute = function () {
var node = this.createJSXNode();
var name = this.parseJSXAttributeName();
var value = null;
if (this.matchJSX('=')) {
this.expectJSX('=');
value = this.parseJSXAttributeValue();
}
return this.finalize(node, new JSXNode.JSXAttribute(name, value));
};
JSXParser.prototype.parseJSXSpreadAttribute = function () {
var node = this.createJSXNode();
this.expectJSX('{');
this.expectJSX('...');
this.finishJSX();
var argument = this.parseAssignmentExpression();
this.reenterJSX();
return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument));
};
JSXParser.prototype.parseJSXAttributes = function () {
var attributes = [];
while (!this.matchJSX('/') && !this.matchJSX('>')) {
var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() :
this.parseJSXNameValueAttribute();
attributes.push(attribute);
}
return attributes;
};
JSXParser.prototype.parseJSXOpeningElement = function () {
var node = this.createJSXNode();
this.expectJSX('<');
var name = this.parseJSXElementName();
var attributes = this.parseJSXAttributes();
var selfClosing = this.matchJSX('/');
if (selfClosing) {
this.expectJSX('/');
}
this.expectJSX('>');
return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
};
JSXParser.prototype.parseJSXBoundaryElement = function () {
var node = this.createJSXNode();
this.expectJSX('<');
if (this.matchJSX('/')) {
this.expectJSX('/');
var name_3 = this.parseJSXElementName();
this.expectJSX('>');
return this.finalize(node, new JSXNode.JSXClosingElement(name_3));
}
var name = this.parseJSXElementName();
var attributes = this.parseJSXAttributes();
var selfClosing = this.matchJSX('/');
if (selfClosing) {
this.expectJSX('/');
}
this.expectJSX('>');
return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
};
JSXParser.prototype.parseJSXEmptyExpression = function () {
var node = this.createJSXChildNode();
this.collectComments();
this.lastMarker.index = this.scanner.index;
this.lastMarker.line = this.scanner.lineNumber;
this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
return this.finalize(node, new JSXNode.JSXEmptyExpression());
};
JSXParser.prototype.parseJSXExpressionContainer = function () {
var node = this.createJSXNode();
this.expectJSX('{');
var expression;
if (this.matchJSX('}')) {
expression = this.parseJSXEmptyExpression();
this.expectJSX('}');
}
else {
this.finishJSX();
expression = this.parseAssignmentExpression();
this.reenterJSX();
}
return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
};
JSXParser.prototype.parseJSXChildren = function () {
var children = [];
while (!this.scanner.eof()) {
var node = this.createJSXChildNode();
var token = this.nextJSXText();
if (token.start < token.end) {
var raw = this.getTokenRaw(token);
var child = this.finalize(node, new JSXNode.JSXText(token.value, raw));
children.push(child);
}
if (this.scanner.source[this.scanner.index] === '{') {
var container = this.parseJSXExpressionContainer();
children.push(container);
}
else {
break;
}
}
return children;
};
JSXParser.prototype.parseComplexJSXElement = function (el) {
var stack = [];
while (!this.scanner.eof()) {
el.children = el.children.concat(this.parseJSXChildren());
var node = this.createJSXChildNode();
var element = this.parseJSXBoundaryElement();
if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) {
var opening = element;
if (opening.selfClosing) {
var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null));
el.children.push(child);
}
else {
stack.push(el);
el = { node: node, opening: opening, closing: null, children: [] };
}
}
if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) {
el.closing = element;
var open_1 = getQualifiedElementName(el.opening.name);
var close_1 = getQualifiedElementName(el.closing.name);
if (open_1 !== close_1) {
this.tolerateError('Expected corresponding JSX closing tag for %0', open_1);
}
if (stack.length > 0) {
var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing));
el = stack[stack.length - 1];
el.children.push(child);
stack.pop();
}
else {
break;
}
}
}
return el;
};
JSXParser.prototype.parseJSXElement = function () {
var node = this.createJSXNode();
var opening = this.parseJSXOpeningElement();
var children = [];
var closing = null;
if (!opening.selfClosing) {
var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children });
children = el.children;
closing = el.closing;
}
return this.finalize(node, new JSXNode.JSXElement(opening, children, closing));
};
JSXParser.prototype.parseJSXRoot = function () {
// Pop the opening '<' added from the lookahead.
if (this.config.tokens) {
this.tokens.pop();
}
this.startJSX();
var element = this.parseJSXElement();
this.finishJSX();
return element;
};
JSXParser.prototype.isStartOfExpression = function () {
return _super.prototype.isStartOfExpression.call(this) || this.match('<');
};
return JSXParser;
}(parser_1.Parser));
exports.JSXParser = JSXParser;