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add validation for express :content_id parameter
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3 changed files with 26 additions and 1 deletions
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@ -29,6 +29,7 @@ Metrics.memory.monitor(logger)
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const ProjectPersistenceManager = require('./app/js/ProjectPersistenceManager')
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const OutputCacheManager = require('./app/js/OutputCacheManager')
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const ContentCacheManager = require('./app/js/ContentCacheManager')
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require('./app/js/db').sync()
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@ -76,6 +77,26 @@ app.param('build_id', function (req, res, next, buildId) {
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}
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})
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app.param('contentId', function (req, res, next, contentId) {
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if (
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contentId != null
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? contentId.match(OutputCacheManager.CONTENT_REGEX)
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: undefined
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) {
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return next()
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} else {
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return next(new Error(`invalid content id ${contentId}`))
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}
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})
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app.param('hash', function (req, res, next, hash) {
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if (hash != null ? hash.match(ContentCacheManager.HASH_REGEX) : undefined) {
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return next()
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} else {
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return next(new Error(`invalid hash ${hash}`))
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}
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})
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app.post(
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'/project/:project_id/compile',
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bodyParser.json({ limit: Settings.compileSizeLimit }),
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@ -115,4 +115,7 @@ async function writePdfStream(dir, hash, buffers) {
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return true
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}
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module.exports = { update: callbackify(update) }
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module.exports = {
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HASH_REGEX: /^[0-9a-f]{64}$/,
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update: callbackify(update)
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}
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@ -34,6 +34,7 @@ module.exports = OutputCacheManager = {
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// build id is HEXDATE-HEXRANDOM from Date.now()and RandomBytes
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// for backwards compatibility, make the randombytes part optional
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BUILD_REGEX: /^[0-9a-f]+(-[0-9a-f]+)?$/,
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CONTENT_REGEX: /^[0-9a-f]+(-[0-9a-f]+)?$/,
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CACHE_LIMIT: 2, // maximum number of cache directories
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CACHE_AGE: 60 * 60 * 1000, // up to one hour old
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