mirror of
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74 lines
2.2 KiB
CoffeeScript
74 lines
2.2 KiB
CoffeeScript
module.exports = RequestParser =
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VALID_COMPILERS: ["pdflatex", "latex", "xelatex", "lualatex"]
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MAX_TIMEOUT: 60
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parse: (body, callback = (error, data) ->) ->
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response = {}
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if !body.compile?
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return callback "top level object should have a compile attribute"
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compile = body.compile
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compile.options ||= {}
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try
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response.compiler = @_parseAttribute "compiler",
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compile.options.compiler,
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validValues: @VALID_COMPILERS
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default: "pdflatex"
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type: "string"
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response.timeout = @_parseAttribute "timeout",
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compile.options.timeout
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default: RequestParser.MAX_TIMEOUT
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type: "number"
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if response.timeout > RequestParser.MAX_TIMEOUT
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response.timeout = RequestParser.MAX_TIMEOUT
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response.timeout = response.timeout * 1000 # milliseconds
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response.resources = (@_parseResource(resource) for resource in (compile.resources or []))
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response.rootResourcePath = @_parseAttribute "rootResourcePath",
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compile.rootResourcePath
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default: "main.tex"
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type: "string"
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catch error
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return callback error
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callback null, response
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_parseResource: (resource) ->
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if !resource.path? or typeof resource.path != "string"
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throw "all resources should have a path attribute"
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if resource.modified?
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modified = new Date(resource.modified)
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if isNaN(modified.getTime())
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throw "resource modified date could not be understood: #{resource.modified}"
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if !resource.url? and !resource.content?
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throw "all resources should have either a url or content attribute"
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if resource.content? and typeof resource.content != "string"
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throw "content attribute should be a string"
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if resource.url? and typeof resource.url != "string"
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throw "url attribute should be a string"
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return {
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path: resource.path
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modified: modified
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url: resource.url
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content: resource.content
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}
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_parseAttribute: (name, attribute, options) ->
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if attribute?
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if options.validValues?
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if options.validValues.indexOf(attribute) == -1
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throw "#{name} attribute should be one of: #{options.validValues.join(", ")}"
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if options.type?
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if typeof attribute != options.type
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throw "#{name} attribute should be a #{options.type}"
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else
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return options.default if options.default?
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throw "Default not implemented"
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return attribute
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