59 lines
1.4 KiB
JavaScript
59 lines
1.4 KiB
JavaScript
var _ = require('lodash');
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var path = require('path');
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var error = require('./error');
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// Normalize a filename
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function normalizePath(filename) {
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return path.normalize(filename);
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}
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// Return true if file path is inside a folder
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function isInRoot(root, filename) {
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filename = path.normalize(filename);
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return (filename.substr(0, root.length) === root);
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}
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// Resolve paths in a specific folder
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// Throw error if file is outside this folder
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function resolveInRoot(root) {
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var input, result;
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input = _.chain(arguments)
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.toArray()
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.slice(1)
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.reduce(function(current, p) {
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// Handle path relative to book root ("/README.md")
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if (p[0] == '/' || p[0] == '\\') return p.slice(1);
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return current? path.join(current, p) : path.normalize(p);
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}, '')
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.value();
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result = path.resolve(root, input);
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if (!isInRoot(root, result)) {
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throw new error.FileOutOfScopeError({
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filename: result,
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root: root
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});
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}
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return result;
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}
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// Chnage extension
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function setExtension(filename, ext) {
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return path.join(
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path.dirname(filename),
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path.basename(filename, path.extname(filename)) + ext
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);
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}
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module.exports = {
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isInRoot: isInRoot,
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resolveInRoot: resolveInRoot,
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normalize: normalizePath,
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setExtension: setExtension
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};
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