mirror of
https://github.com/overleaf/overleaf.git
synced 2024-09-16 02:52:31 -04:00
200 lines
7.1 KiB
CoffeeScript
200 lines
7.1 KiB
CoffeeScript
Settings = require('settings-sharelatex')
|
|
redis = require("redis-sharelatex")
|
|
rclient = redis.createClient(Settings.redis.web)
|
|
async = require('async')
|
|
_ = require('underscore')
|
|
keys = require('./RedisKeyBuilder')
|
|
logger = require('logger-sharelatex')
|
|
metrics = require('./Metrics')
|
|
ZipManager = require('./ZipManager')
|
|
|
|
redisOptions = _.clone(Settings.redis.web)
|
|
redisOptions.return_buffers = true
|
|
rclientBuffer = redis.createClient(redisOptions)
|
|
|
|
# Make times easy to read
|
|
minutes = 60 # seconds for Redis expire
|
|
|
|
module.exports = RedisManager =
|
|
putDocInMemory : (project_id, doc_id, docLines, version, callback)->
|
|
timer = new metrics.Timer("redis.put-doc")
|
|
logger.log project_id:project_id, doc_id:doc_id, version: version, "putting doc in redis"
|
|
multi = rclient.multi()
|
|
multi.set keys.docLines(doc_id:doc_id), JSON.stringify(docLines)
|
|
multi.set keys.projectKey({doc_id:doc_id}), project_id
|
|
multi.set keys.docVersion(doc_id:doc_id), version
|
|
multi.sadd keys.allDocs, doc_id
|
|
multi.sadd keys.docsInProject(project_id:project_id), doc_id
|
|
multi.exec (err, replys)->
|
|
timer.done()
|
|
callback(err)
|
|
|
|
removeDocFromMemory : (project_id, doc_id, callback)->
|
|
logger.log project_id:project_id, doc_id:doc_id, "removing doc from redis"
|
|
multi = rclient.multi()
|
|
multi.del keys.docLines(doc_id:doc_id)
|
|
multi.del keys.projectKey(doc_id:doc_id)
|
|
multi.del keys.docVersion(doc_id:doc_id)
|
|
multi.srem keys.docsInProject(project_id:project_id), doc_id
|
|
multi.srem keys.allDocs, doc_id
|
|
multi.exec (err, replys)->
|
|
if err?
|
|
logger.err project_id:project_id, doc_id:doc_id, err:err, "error removing doc from redis"
|
|
callback(err, null)
|
|
else
|
|
logger.log project_id:project_id, doc_id:doc_id, "removed doc from redis"
|
|
callback()
|
|
|
|
getDoc : (doc_id, callback = (error, lines, version) ->)->
|
|
timer = new metrics.Timer("redis.get-doc")
|
|
# use Buffer when retrieving data as it may be gzipped
|
|
multi = rclientBuffer.multi()
|
|
linesKey = keys.docLines(doc_id:doc_id)
|
|
multi.get linesKey
|
|
multi.get keys.docVersion(doc_id:doc_id)
|
|
multi.exec (error, result)->
|
|
timer.done()
|
|
return callback(error) if error?
|
|
ZipManager.uncompressIfNeeded doc_id, result, (error, result) ->
|
|
try
|
|
docLines = JSON.parse result[0]
|
|
catch e
|
|
return callback(e)
|
|
version = parseInt(result[1] or 0, 10)
|
|
callback null, docLines, version
|
|
|
|
getDocVersion: (doc_id, callback = (error, version) ->) ->
|
|
rclient.get keys.docVersion(doc_id: doc_id), (error, version) ->
|
|
return callback(error) if error?
|
|
version = parseInt(version, 10)
|
|
callback null, version
|
|
|
|
getCountOfDocsInMemory : (callback)->
|
|
rclient.smembers keys.allDocs, (err, members)->
|
|
len = members.length
|
|
callback null, len
|
|
|
|
setDocument : (doc_id, docLines, version, callback = (error) ->)->
|
|
ZipManager.compressIfNeeded doc_id, JSON.stringify(docLines), (err, result) ->
|
|
multi = rclient.multi()
|
|
multi.set keys.docLines(doc_id:doc_id), result
|
|
multi.set keys.docVersion(doc_id:doc_id), version
|
|
multi.incr keys.now("docsets")
|
|
multi.exec (error, replys) -> callback(error)
|
|
|
|
getPendingUpdatesForDoc : (doc_id, callback)->
|
|
multi = rclient.multi()
|
|
multi.lrange keys.pendingUpdates(doc_id:doc_id), 0 , -1
|
|
multi.del keys.pendingUpdates(doc_id:doc_id)
|
|
multi.exec (error, replys) ->
|
|
return callback(error) if error?
|
|
jsonUpdates = replys[0]
|
|
updates = []
|
|
for jsonUpdate in jsonUpdates
|
|
try
|
|
update = JSON.parse jsonUpdate
|
|
catch e
|
|
return callback e
|
|
updates.push update
|
|
callback error, updates
|
|
|
|
getUpdatesLength: (doc_id, callback)->
|
|
rclient.llen keys.pendingUpdates(doc_id:doc_id), callback
|
|
|
|
getDocsWithPendingUpdates: (callback = (error, docs) ->) ->
|
|
rclient.smembers keys.docsWithPendingUpdates, (error, doc_keys) ->
|
|
return callback(error) if error?
|
|
docs = doc_keys.map (doc_key) ->
|
|
[project_id, doc_id] = keys.splitProjectIdAndDocId(doc_key)
|
|
return {
|
|
doc_id: doc_id
|
|
project_id: project_id
|
|
}
|
|
callback null, docs
|
|
|
|
clearDocFromPendingUpdatesSet: (project_id, doc_id, callback = (error) ->) ->
|
|
doc_key = keys.combineProjectIdAndDocId(project_id, doc_id)
|
|
rclient.srem keys.docsWithPendingUpdates, doc_key, callback
|
|
|
|
getPreviousDocOps: (doc_id, start, end, callback = (error, jsonOps) ->) ->
|
|
rclient.llen keys.docOps(doc_id: doc_id), (error, length) ->
|
|
return callback(error) if error?
|
|
rclient.get keys.docVersion(doc_id: doc_id), (error, version) ->
|
|
return callback(error) if error?
|
|
version = parseInt(version, 10)
|
|
first_version_in_redis = version - length
|
|
|
|
if start < first_version_in_redis or end > version
|
|
error = new Error("doc ops range is not loaded in redis")
|
|
logger.error err: error, length: length, version: version, start: start, end: end, "inconsistent version or length"
|
|
return callback(error)
|
|
|
|
start = start - first_version_in_redis
|
|
if end > -1
|
|
end = end - first_version_in_redis
|
|
|
|
if isNaN(start) or isNaN(end)
|
|
error = new Error("inconsistent version or lengths")
|
|
logger.error err: error, length: length, version: version, start: start, end: end, "inconsistent version or length"
|
|
return callback(error)
|
|
|
|
rclient.lrange keys.docOps(doc_id: doc_id), start, end, (error, jsonOps) ->
|
|
return callback(error) if error?
|
|
try
|
|
ops = jsonOps.map (jsonOp) -> JSON.parse jsonOp
|
|
catch e
|
|
return callback(e)
|
|
callback null, ops
|
|
|
|
DOC_OPS_TTL: 60 * minutes
|
|
DOC_OPS_MAX_LENGTH: 100
|
|
pushDocOp: (doc_id, op, callback = (error, new_version) ->) ->
|
|
jsonOp = JSON.stringify op
|
|
multi = rclient.multi()
|
|
multi.rpush keys.docOps(doc_id: doc_id), jsonOp
|
|
multi.expire keys.docOps(doc_id: doc_id), RedisManager.DOC_OPS_TTL
|
|
multi.ltrim keys.docOps(doc_id: doc_id), -RedisManager.DOC_OPS_MAX_LENGTH, -1
|
|
multi.incr keys.docVersion(doc_id: doc_id)
|
|
multi.exec (error, replys) ->
|
|
[_, __, ___, version] = replys
|
|
return callback(error) if error?
|
|
version = parseInt(version, 10)
|
|
callback null, version
|
|
|
|
pushUncompressedHistoryOp: (project_id, doc_id, op, callback = (error, length) ->) ->
|
|
jsonOp = JSON.stringify op
|
|
multi = rclient.multi()
|
|
multi.rpush keys.uncompressedHistoryOp(doc_id: doc_id), jsonOp
|
|
multi.sadd keys.docsWithHistoryOps(project_id: project_id), doc_id
|
|
multi.exec (error, results) ->
|
|
return callback(error) if error?
|
|
[length, _] = results
|
|
callback(error, length)
|
|
|
|
getDocOpsLength: (doc_id, callback = (error, length) ->) ->
|
|
rclient.llen keys.docOps(doc_id: doc_id), callback
|
|
|
|
getDocIdsInProject: (project_id, callback = (error, doc_ids) ->) ->
|
|
rclient.smembers keys.docsInProject(project_id: project_id), callback
|
|
|
|
|
|
getDocumentsProjectId = (doc_id, callback)->
|
|
rclient.get keys.projectKey({doc_id:doc_id}), (err, project_id)->
|
|
callback err, {doc_id:doc_id, project_id:project_id}
|
|
|
|
getAllProjectDocsIds = (project_id, callback)->
|
|
rclient.SMEMBERS keys.docsInProject(project_id:project_id), (err, doc_ids)->
|
|
if callback?
|
|
callback(err, doc_ids)
|
|
|
|
getDocumentsAndExpire = (doc_ids, callback)->
|
|
multi = rclient.multi()
|
|
oneDay = 86400
|
|
doc_ids.forEach (doc_id)->
|
|
# rclient.expire keys.docLines(doc_id:doc_id), oneDay, ->
|
|
doc_ids.forEach (doc_id)->
|
|
multi.get keys.docLines(doc_id:doc_id)
|
|
multi.exec (err, docsLines)->
|
|
callback err, docsLines
|
|
|
|
|