mirror of
https://github.com/overleaf/overleaf.git
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101 lines
3.8 KiB
CoffeeScript
101 lines
3.8 KiB
CoffeeScript
logger = require "logger-sharelatex"
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aws = require "aws-sdk"
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_ = require "underscore"
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fs = require "fs"
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Errors = require "./Errors"
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s3 = new aws.S3()
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module.exports =
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sendFile: (bucketName, key, fsPath, callback)->
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logger.log bucketName:bucketName, key:key, "send file data to s3"
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stream = fs.createReadStream fsPath
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s3.upload Bucket: bucketName, Key: key, Body: stream, (err, data) ->
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if err?
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logger.err err: err, Bucket: bucketName, Key: key, "error sending file data to s3"
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callback err
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sendStream: (bucketName, key, stream, callback)->
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logger.log bucketName:bucketName, key:key, "send file stream to s3"
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s3.upload Bucket: bucketName, Key: key, Body: stream, (err, data) ->
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if err?
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logger.err err: err, Bucket: bucketName, Key: key, "error sending file stream to s3"
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callback err
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getFileStream: (bucketName, key, opts, callback = (err, res)->)->
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logger.log bucketName:bucketName, key:key, "get file stream from s3"
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callback = _.once callback
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params =
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Bucket:bucketName
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Key: key
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if opts.start? and opts.end?
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params['Range'] = "bytes=#{opts.start}-#{opts.end}"
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request = s3.getObject params
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stream = request.createReadStream()
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stream.on 'readable', () ->
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callback null, stream
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stream.on 'error', (err) ->
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logger.err err:err, bucketName:bucketName, key:key, "error getting file stream from s3"
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if err.code == 'NoSuchKey'
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return callback new Errors.NotFoundError "File not found in S3: #{bucketName}:#{key}"
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callback err
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copyFile: (bucketName, sourceKey, destKey, callback)->
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logger.log bucketName:bucketName, sourceKey:sourceKey, destKey: destKey, "copying file in s3"
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source = bucketName + '/' + sourceKey
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s3.copyObject {Bucket: bucketName, Key: destKey, CopySource: source}, (err) ->
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if err?
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logger.err err:err, bucketName:bucketName, sourceKey:sourceKey, destKey:destKey, "something went wrong copying file in s3"
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callback err
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deleteFile: (bucketName, key, callback)->
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logger.log bucketName:bucketName, key:key, "delete file in s3"
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s3.deleteObject {Bucket: bucketName, Key: key}, (err) ->
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if err?
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logger.err err:err, bucketName:bucketName, key:key, "something went wrong deleting file in s3"
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callback err
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deleteDirectory: (bucketName, key, callback)->
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logger.log bucketName:bucketName, key:key, "delete directory in s3"
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s3.listObjects {Bucket: bucketName, Prefix: key}, (err, data) ->
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if err?
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logger.err err:err, bucketName:bucketName, key:key, "something went wrong listing prefix in s3"
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return callback err
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if data.Contents.length == 0
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logger.log bucketName:bucketName, key:key, "the directory is empty"
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return callback()
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keys = _.map data.Contents, (entry)->
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Key: entry.Key
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s3.deleteObjects
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Bucket: bucketName
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Delete:
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Objects: keys
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Quiet: true
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, (err) ->
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if err?
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logger.err err:err, bucketName:bucketName, key:keys, "something went wrong deleting directory in s3"
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callback err
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checkIfFileExists:(bucketName, key, callback)->
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logger.log bucketName:bucketName, key:key, "check file existence in s3"
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s3.headObject {Bucket: bucketName, Key: key}, (err, data) ->
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if err?
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return (callback null, false) if err.code == 'NotFound'
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logger.err err:err, bucketName:bucketName, key:key, "something went wrong checking head in s3"
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return callback err
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callback null, data.ETag?
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getProjectSize:(bucketName, key, callback)->
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logger.log bucketName:bucketName, key:key, "get project size in s3"
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s3.listObjects {Bucket: bucketName, Prefix: key}, (err, data) ->
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if err?
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logger.err err:err, bucketName:bucketName, key:key, "something went wrong listing prefix in s3"
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return callback err
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if data.Contents.length == 0
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logger.log bucketName:bucketName, key:key, "the directory is empty"
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return callback()
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totalSize = 0
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_.each data.Contents, (entry)->
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totalSize += entry.Size
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callback null, totalSize
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