var _ = require('lodash')
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var logger = require('./logger.js').getInstance()
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module.exports = {
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getTarget: getTarget
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}
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function getTarget(req, config) {
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var newTarget
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var router = config.router
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if (_.isPlainObject(router)) {
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newTarget = getTargetFromProxyTable(req, router)
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} else if (_.isFunction(router)) {
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newTarget = router(req)
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}
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return newTarget
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}
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function getTargetFromProxyTable(req, table) {
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var result
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var host = req.headers.host
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var path = req.url
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var hostAndPath = host + path
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_.forIn(table, function(value, key) {
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if (containsPath(key)) {
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if (hostAndPath.indexOf(key) > -1) {
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// match 'localhost:3000/api'
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result = table[key]
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logger.debug('[HPM] Router table match: "%s"', key)
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return false
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}
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} else {
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if (key === host) {
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// match 'localhost:3000'
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result = table[key]
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logger.debug('[HPM] Router table match: "%s"', host)
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return false
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}
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}
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})
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return result
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}
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function containsPath(v) {
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return v.indexOf('/') > -1
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}
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