Class: LanguageServer

Inherits:
Object
  • Object
show all
Defined in:
lib/servers/language_server.rb

Class Method Summary collapse

Class Method Details

.client_initialize(id, params) ⇒ Object 



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# File 'lib/servers/language_server.rb', line 38

def self.client_initialize(id,params)
  return JSON.generate({
    jsonrpc: '2.0',
    result: {
      capabilities: {
        textDocumentSync:1,
        implementationProvider: "true"
      }
    },
    id: id
  })
end

.client_textDocument_didChange(id, params) ⇒ Object 



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# File 'lib/servers/language_server.rb', line 59

def self.client_textDocument_didChange(id,params)
  uri = params["textDocument"]["uri"]
  version = params["textDocument"]["version"]
  code = params['contentChanges'][0]['text']
  return self.generate_diagnostics(uri,version,code)
  return
end

.client_textDocument_didOpen(id, params) ⇒ Object 



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# File 'lib/servers/language_server.rb', line 51

def self.client_textDocument_didOpen(id,params)
  uri = params["textDocument"]["uri"]
  version = params["textDocument"]["version"]
  code = params['textDocument']['text']
  return self.generate_diagnostics(uri,version,code)
  return
end

.generate_diagnostics(uri, version, code) ⇒ Object 



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# File 'lib/servers/language_server.rb', line 67

def self.generate_diagnostics(uri,version,code)
  result = RuleEngine.analyzeDocument(code) #convert to json

  diagnostics = []

  result.each do |sin|
    diagnostics.append({
                         range:{
                           start: { line: sin.begin_line-1, character: sin.begin_char },
                           end: { line: sin.end_line-1, character: sin.end_char }
                         },
                         severity: 2,
                         code: {
                           value:sin.type[:name],
                           target:sin.type[:solution]
                         },
                         source:'Puppet-sec-lint',
                         message: sin.type[:message]
                       })
  end

  return JSON.generate({
                         jsonrpc: '2.0',
                         method: 'textDocument/publishDiagnostics',
                         params: {
                           uri: uri,
                           version: version,
                           diagnostics: diagnostics
                         }
                       })
end

.start(port) ⇒ Object 



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# File 'lib/servers/language_server.rb', line 11

def self.start(port)
  port ||= 5007
  server = TCPServer.open(port)

  loop {
    Thread.fork(server.accept) do |client|
      while line=client.gets
        length=Integer(line.scan(/\d/).join(''))
        line=client.read(length+2)
        request = JSON.parse(line)
        $logger.debug(line)

        method_name = request['method'].sub('/', '_')
        response = if self.respond_to? "client_"+method_name then self.send("client_"+method_name,request['id'],request['params']) end

        if not response.nil?
          client.flush
          client.print("Content-Length: "+response.length.to_s+"\r\n\r\n")
          client.print(response)
          $logger.debug(response)
        end
      end
      client.close
    end
  }
end