overleaf/services/web/app/coffee/Features/DocumentUpdater/DocumentUpdaterHandler.coffee

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CoffeeScript
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2014-02-12 05:23:40 -05:00
request = require 'request'
request = request.defaults()
async = require 'async'
settings = require 'settings-sharelatex'
_ = require 'underscore'
async = require 'async'
logger = require('logger-sharelatex')
metrics = require('../../infrastructure/Metrics')
slReqIdHelper = require('soa-req-id')
redis = require('redis')
rclient = redis.createClient(settings.redis.web.port, settings.redis.web.host)
rclient.auth(settings.redis.web.password)
Project = require("../../models/Project").Project
ProjectLocator = require('../../Features/Project/ProjectLocator')
module.exports =
queueChange : (project_id, doc_id, change, sl_req_id, callback = ()->)->
{callback, sl_req_id} = slReqIdHelper.getCallbackAndReqId(callback, sl_req_id)
jsonChange = JSON.stringify change
rclient.rpush keys.pendingUpdates(doc_id:doc_id), jsonChange, (error)->
return callback(error) if error?
doc_key = keys.combineProjectIdAndDocId(project_id, doc_id)
rclient.sadd keys.docsWithPendingUpdates, doc_key, (error) ->
return callback(error) if error?
rclient.publish "pending-updates", doc_key, callback
flushProjectToMongo: (project_id, sl_req_id, callback = (error) ->)->
{callback, sl_req_id} = slReqIdHelper.getCallbackAndReqId(callback, sl_req_id)
logger.log project_id:project_id, sl_req_id:sl_req_id, "flushing project from document updater"
timer = new metrics.Timer("flushing.mongo.project")
url = "#{settings.apis.documentupdater.url}/project/#{project_id}/flush"
request.post url, (error, res, body)->
if error?
logger.error err: error, project_id: project_id, sl_req_id: sl_req_id, "error flushing project from document updater"
return callback(error)
else if res.statusCode >= 200 and res.statusCode < 300
logger.log project_id: project_id, sl_req_id: sl_req_id, "flushed project from document updater"
return callback(null)
else
error = new Error("document updater returned a failure status code: #{res.statusCode}")
logger.error err: error, project_id: project_id, sl_req_id: sl_req_id, "document updater returned failure status code: #{res.statusCode}"
return callback(error)
flushProjectToMongoAndDelete: (project_id, sl_req_id, callback = ()->) ->
{callback, sl_req_id} = slReqIdHelper.getCallbackAndReqId(callback, sl_req_id)
logger.log project_id:project_id, sl_req_id:sl_req_id, "deleting project from document updater"
timer = new metrics.Timer("delete.mongo.project")
url = "#{settings.apis.documentupdater.url}/project/#{project_id}"
request.del url, (error, res, body)->
if error?
logger.error err: error, project_id: project_id, sl_req_id: sl_req_id, "error deleting project from document updater"
return callback(error)
else if res.statusCode >= 200 and res.statusCode < 300
logger.log project_id: project_id, sl_req_id: sl_req_id, "deleted project from document updater"
return callback(null)
else
error = new Error("document updater returned a failure status code: #{res.statusCode}")
logger.error err: error, project_id: project_id, sl_req_id: sl_req_id, "document updater returned failure status code: #{res.statusCode}"
return callback(error)
deleteDoc : (project_id, doc_id, sl_req_id, callback = ()->)->
{callback, sl_req_id} = slReqIdHelper.getCallbackAndReqId(callback, sl_req_id)
logger.log project_id:project_id, doc_id: doc_id, sl_req_id:sl_req_id, "deleting doc from document updater"
timer = new metrics.Timer("delete.mongo.doc")
url = "#{settings.apis.documentupdater.url}/project/#{project_id}/doc/#{doc_id}"
request.del url, (error, res, body)->
if error?
logger.error err: error, project_id: project_id, doc_id: doc_id, sl_req_id: sl_req_id, "error deleting doc from document updater"
return callback(error)
else if res.statusCode >= 200 and res.statusCode < 300
logger.log project_id: project_id, doc_id: doc_id, sl_req_id: sl_req_id, "deleted doc from document updater"
return callback(null)
else
error = new Error("document updater returned a failure status code: #{res.statusCode}")
logger.error err: error, project_id: project_id, doc_id: doc_id, sl_req_id: sl_req_id, "document updater returned failure status code: #{res.statusCode}"
return callback(error)
getDocument: (project_id, doc_id, fromVersion, sl_req_id, callback = (error, exists, doclines, version) ->) ->
{callback, sl_req_id} = slReqIdHelper.getCallbackAndReqId(callback, sl_req_id)
timer = new metrics.Timer("get-document")
url = "#{settings.apis.documentupdater.url}/project/#{project_id}/doc/#{doc_id}?fromVersion=#{fromVersion}"
logger.log project_id:project_id, doc_id: doc_id, sl_req_id:sl_req_id, "getting doc from document updater"
request.get url, (error, res, body)->
timer.done()
if error?
logger.error err:error, url:url, project_id:project_id, doc_id:doc_id, "error getting doc from doc updater"
return callback(error)
if res.statusCode >= 200 and res.statusCode < 300
logger.log project_id:project_id, doc_id:doc_id, "got doc from document document updater"
try
body = JSON.parse(body)
catch error
return callback(error)
callback null, body.lines, body.version, body.ops
else
logger.error project_id:project_id, doc_id:doc_id, url: url, "doc updater returned a non-success status code: #{res.statusCode}"
callback new Error("doc updater returned a non-success status code: #{res.statusCode}")
setDocument : (project_id, doc_id, docLines, sl_req_id, callback = (error) ->)->
{callback, sl_req_id} = slReqIdHelper.getCallbackAndReqId(callback, sl_req_id)
timer = new metrics.Timer("set-document")
url = "#{settings.apis.documentupdater.url}/project/#{project_id}/doc/#{doc_id}"
body =
url: url
json:
lines: docLines
logger.log project_id:project_id, doc_id: doc_id, sl_req_id:sl_req_id, "setting doc in document updater"
request.post body, (error, res, body)->
timer.done()
if error?
logger.error err:error, url:url, project_id:project_id, doc_id:doc_id, "error setting doc in doc updater"
return callback(error)
if res.statusCode >= 200 and res.statusCode < 300
logger.log project_id: project_id, doc_id: doc_id, sl_req_id: sl_req_id, "set doc in document updater"
return callback(null)
else
logger.error project_id:project_id, doc_id:doc_id, url: url, "doc updater returned a non-success status code: #{res.statusCode}"
callback new Error("doc updater returned a non-success status code: #{res.statusCode}")
getNumberOfDocsInMemory : (callback)->
request.get "#{settings.apis.documentupdater.url}/total", (err, req, body)->
try
body = JSON.parse body
catch err
logger.err err:err, "error parsing response from doc updater about the total number of docs"
callback(err, body?.total)
PENDINGUPDATESKEY = "PendingUpdates"
DOCLINESKEY = "doclines"
DOCIDSWITHPENDINGUPDATES = "DocsWithPendingUpdates"
keys =
pendingUpdates : (op) -> "#{PENDINGUPDATESKEY}:#{op.doc_id}"
docsWithPendingUpdates: DOCIDSWITHPENDINGUPDATES
docLines : (op) -> "#{DOCLINESKEY}:#{op.doc_id}"
combineProjectIdAndDocId: (project_id, doc_id) -> "#{project_id}:#{doc_id}"