overleaf/services/clsi/app/coffee/RequestParser.coffee

86 lines
2.7 KiB
CoffeeScript
Raw Normal View History

2014-02-12 12:27:43 -05:00
module.exports = RequestParser =
VALID_COMPILERS: ["pdflatex", "latex", "xelatex", "lualatex"]
2014-10-17 06:03:08 -04:00
MAX_TIMEOUT: 300
2014-02-12 12:27:43 -05:00
parse: (body, callback = (error, data) ->) ->
response = {}
if !body.compile?
return callback "top level object should have a compile attribute"
compile = body.compile
compile.options ||= {}
try
response.compiler = @_parseAttribute "compiler",
compile.options.compiler,
validValues: @VALID_COMPILERS
default: "pdflatex"
type: "string"
response.timeout = @_parseAttribute "timeout",
compile.options.timeout
default: RequestParser.MAX_TIMEOUT
type: "number"
2016-01-12 12:04:42 -05:00
response.imageName = @_parseAttribute "imageName",
compile.options.imageName,
type: "string"
response.draft = @_parseAttribute "draft",
compile.options.draft,
default: false,
type: "boolean"
2014-02-12 12:27:43 -05:00
if response.timeout > RequestParser.MAX_TIMEOUT
response.timeout = RequestParser.MAX_TIMEOUT
response.timeout = response.timeout * 1000 # milliseconds
response.resources = (@_parseResource(resource) for resource in (compile.resources or []))
2015-02-11 07:03:36 -05:00
rootResourcePath = @_parseAttribute "rootResourcePath",
2014-02-12 12:27:43 -05:00
compile.rootResourcePath
default: "main.tex"
type: "string"
2015-02-11 07:03:36 -05:00
response.rootResourcePath = RequestParser._sanitizePath(rootResourcePath)
2014-02-12 12:27:43 -05:00
catch error
return callback error
callback null, response
_parseResource: (resource) ->
if !resource.path? or typeof resource.path != "string"
throw "all resources should have a path attribute"
if resource.modified?
modified = new Date(resource.modified)
if isNaN(modified.getTime())
throw "resource modified date could not be understood: #{resource.modified}"
if !resource.url? and !resource.content?
throw "all resources should have either a url or content attribute"
if resource.content? and typeof resource.content != "string"
throw "content attribute should be a string"
if resource.url? and typeof resource.url != "string"
throw "url attribute should be a string"
return {
path: resource.path
modified: modified
url: resource.url
content: resource.content
}
_parseAttribute: (name, attribute, options) ->
if attribute?
if options.validValues?
if options.validValues.indexOf(attribute) == -1
throw "#{name} attribute should be one of: #{options.validValues.join(", ")}"
if options.type?
if typeof attribute != options.type
throw "#{name} attribute should be a #{options.type}"
else
return options.default if options.default?
return attribute
2015-02-11 07:03:36 -05:00
_sanitizePath: (path) ->
# See http://php.net/manual/en/function.escapeshellcmd.php
path.replace(/[\#\&\;\`\|\*\?\~\<\>\^\(\)\[\]\{\}\$\\\x0A\xFF\x00]/g, "")