overleaf/services/web/app/coffee/Features/ThirdPartyDataStore/UpdateMerger.coffee
2016-09-26 13:57:57 +01:00

111 lines
4.9 KiB
CoffeeScript

_ = require('underscore')
projectLocator = require('../Project/ProjectLocator')
editorController = require('../Editor/EditorController')
logger = require('logger-sharelatex')
Settings = require('settings-sharelatex')
FileTypeManager = require('../Uploads/FileTypeManager')
uuid = require('node-uuid')
fs = require('fs')
module.exports =
mergeUpdate: (user_id, project_id, path, updateRequest, source, callback = (error) ->)->
self = @
logger.log project_id:project_id, path:path, "merging update from tpds"
projectLocator.findElementByPath project_id, path, (err, element)=>
# Returns an error if the element is not found
#return callback(err) if err?
logger.log project_id:project_id, path:path, "found element by path for merging update from tpds"
elementId = undefined
if element?
elementId = element._id
self.p.writeStreamToDisk project_id, elementId, updateRequest, (err, fsPath)->
callback = _.wrap callback, (cb, arg) ->
fs.unlink fsPath, (err) ->
if err?
logger.err project_id:project_id, fsPath:fsPath, "error deleting file"
cb(arg)
return callback(err) if err?
FileTypeManager.isBinary path, fsPath, (err, isFile)->
return callback(err) if err?
if isFile
self.p.processFile project_id, elementId, fsPath, path, source, callback
else
self.p.processDoc project_id, elementId, user_id, fsPath, path, source, callback
deleteUpdate: (project_id, path, source, callback)->
projectLocator.findElementByPath project_id, path, (err, element, type)->
if err? || !element?
logger.log element:element, project_id:project_id, path:path, "could not find entity for deleting, assuming it was already deleted"
return callback()
logger.log project_id:project_id, path:path, type:type, element:element, "processing update to delete entity from tpds"
editorController.deleteEntity project_id, element._id, type, source, (err)->
logger.log project_id:project_id, path:path, "finished processing update to delete entity from tpds"
callback()
p:
processDoc: (project_id, doc_id, user_id, fsPath, path, source, callback)->
readFileIntoTextArray fsPath, (err, docLines)->
if err?
logger.err project_id:project_id, doc_id:doc_id, fsPath:fsPath, "error reading file into text array for process doc update"
return callback(err)
logger.log docLines:docLines, doc_id:doc_id, project_id:project_id, "processing doc update from tpds"
if doc_id?
editorController.setDoc project_id, doc_id, user_id, docLines, source, callback
else
setupNewEntity project_id, path, (err, folder, fileName)->
if err?
logger.err err:err, project_id:project_id, doc_id:doc_id, path:path, "error processing file"
return callback(err)
editorController.addDoc project_id, folder._id, fileName, docLines, source, callback
processFile: (project_id, file_id, fsPath, path, source, callback)->
finish = (err)->
logger.log project_id:project_id, file_id:file_id, path:path, "completed processing file update from tpds"
callback(err)
logger.log project_id:project_id, file_id:file_id, path:path, "processing file update from tpds"
setupNewEntity project_id, path, (err, folder, fileName) =>
if err?
logger.err err:err, project_id:project_id, file_id:file_id, path:path, "error processing file"
return callback(err)
else if file_id?
editorController.replaceFile project_id, file_id, fsPath, source, finish
else
editorController.addFile project_id, folder?._id, fileName, fsPath, source, finish
writeStreamToDisk: (project_id, file_id, stream, callback = (err, fsPath)->)->
if !file_id?
file_id = uuid.v4()
dumpPath = "#{Settings.path.dumpFolder}/#{project_id}_#{file_id}"
writeStream = fs.createWriteStream(dumpPath)
stream.pipe(writeStream)
stream.on 'error', (err)->
logger.err err:err, project_id:project_id, file_id:file_id, dumpPath:dumpPath,
"something went wrong with incoming tpds update stream"
writeStream.on 'error', (err)->
logger.err err:err, project_id:project_id, file_id:file_id, dumpPath:dumpPath,
"something went wrong with writing tpds update to disk"
stream.on 'end', ->
logger.log project_id:project_id, file_id:file_id, dumpPath:dumpPath, "incoming tpds update stream ended"
writeStream.on "finish", ->
logger.log project_id:project_id, file_id:file_id, dumpPath:dumpPath, "tpds update write stream finished"
callback null, dumpPath
readFileIntoTextArray = (path, callback)->
fs.readFile path, "utf8", (error, content = "") ->
if error?
logger.err path:path, "error reading file into text array"
return callback(err)
lines = content.split(/\r\n|\n|\r/)
callback error, lines
setupNewEntity = (project_id, path, callback)->
lastIndexOfSlash = path.lastIndexOf("/")
fileName = path[lastIndexOfSlash+1 .. -1]
folderPath = path[0 .. lastIndexOfSlash]
editorController.mkdirp project_id, folderPath, (err, newFolders, lastFolder)->
callback err, lastFolder, fileName