overleaf/services/web/app.coffee

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Settings = require('settings-sharelatex')
logger = require 'logger-sharelatex'
logger.initialize("web-sharelatex")
logger.logger.serializers.user = require("./app/js/infrastructure/LoggerSerializers").user
logger.logger.serializers.project = require("./app/js/infrastructure/LoggerSerializers").project
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metrics = require("metrics-sharelatex")
metrics.initialize("web")
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Server = require("./app/js/infrastructure/Server")
Errors = require "./app/js/errors"
argv = require("optimist")
.options("user", {alias : "u", description : "Run the server with permissions of the specified user"})
.options("group", {alias : "g", description : "Run the server with permissions of the specified group"})
.usage("Usage: $0")
.argv
Server.app.use (error, req, res, next) ->
logger.error err: error, url:req.url, method:req.method, user:req?.sesson?.user, "error passed to top level next middlewear"
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res.statusCode = error.status or 500
if res.statusCode == 500
res.end("Oops, something went wrong with your request, sorry. If this continues, please contact us at #{Settings.adminEmail}")
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else
res.end()
if Settings.catchErrors
process.removeAllListeners "uncaughtException"
process.on "uncaughtException", (error) ->
logger.error err: error, "uncaughtException"
port = Settings.port or Settings.internal?.web?.port or 3000
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host = Settings.internal.web.host or "localhost"
Server.server.listen port, host, ->
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logger.info "web starting up, listening on #{host}:#{port}"
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logger.info("#{require('http').globalAgent.maxSockets} sockets enabled")
if argv.user
process.setuid argv.user
logger.info "Running as user: #{argv.user}"
if argv.group
process.setgid argv.group
logger.info "Running as group: #{argv.group}"