Class: Protobuf::Rpc::Http::Server
Constant Summary
collapse
- HTTP_STATUSES =
TODO: more comprehensive mapping?
{
Protobuf::Socketrpc::ErrorReason::BAD_REQUEST_DATA => 400,
Protobuf::Socketrpc::ErrorReason::BAD_REQUEST_PROTO => 400,
Protobuf::Socketrpc::ErrorReason::UNAUTHORIZED_REQUEST => 401,
Protobuf::Socketrpc::ErrorReason::FORBIDDEN_REQUEST => 403,
Protobuf::Socketrpc::ErrorReason::SERVICE_NOT_FOUND => 404,
Protobuf::Socketrpc::ErrorReason::METHOD_NOT_FOUND => 404,
Protobuf::Socketrpc::ErrorReason::DATA_NOT_FOUND => 404,
Protobuf::Socketrpc::ErrorReason::RPC_ERROR => 500,
Protobuf::Socketrpc::ErrorReason::RPC_FAILED => 500,
Protobuf::Socketrpc::ErrorReason::INVALID_REQUEST_PROTO => 500,
Protobuf::Socketrpc::ErrorReason::BAD_RESPONSE_PROTO => 500,
Protobuf::Socketrpc::ErrorReason::UNKNOWN_HOST => 500,
Protobuf::Socketrpc::ErrorReason::IO_ERROR => 500
}
Instance Method Summary
collapse
included, #log_exception, #sign_message
Methods included from Server
#gc_pause, #handle_request
Constructor Details
#initialize(options = {}) ⇒ Server
Returns a new instance of Server.
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 30
def initialize(options = {})
@options = options
end
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Instance Method Details
#call(env) ⇒ Object
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 38
def call(env)
path_components = env['PATH_INFO'].split("/").map{ |x| CGI::unescape(x) }.compact.reject{ |x| x.empty? }
if path_components.length < 2
return protobuf_http_response 400,
:error => "Expected path format /CLASS/METHOD",
:reason => Protobuf::Socketrpc::ErrorReason::INVALID_REQUEST_PROTO
end
service_name = path_components[0..-2].join("::")
method_name = path_components[-1]
rpc_request = ::Protobuf::Socketrpc::Request.new(
:service_name => service_name,
:method_name => method_name,
:request_proto => env['rack.input'].read,
:caller => env['HTTP_X_PROTOBUF_CALLER'] || ''
)
encoded_request = rpc_request.encode()
begin
encoded_response = handle_request(encoded_request)
rescue Exception => e
return protobuf_http_response 500,
:error => "Handle request failed: #{e.to_s}",
:reason => Protobuf::Socketrpc::ErrorReason::RPC_ERROR
end
rpc_response = Protobuf::Socketrpc::Response.decode(encoded_response)
if rpc_response[:error].length > 0
status = HTTP_STATUSES[rpc_response[:error_reason]] or 500
return protobuf_http_response status,
:error => rpc_response[:error],
:reason => rpc_response[:error_reason]
end
return protobuf_http_response 200, :body => rpc_response['response_proto']
end
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#log_signature ⇒ Object
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 34
def log_signature
@_log_signature ||= "[http-server-#{self.class.name}]"
end
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#protobuf_http_response(status, options) ⇒ Object
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 78
def protobuf_http_response(status, options)
response = [status, { 'Content-Type' => 'application/x-protobuf' }, []]
response[1]['X-Protobuf-Error'] = options[:error] unless options[:error].nil?
response[1]['X-Protobuf-Error-Reason'] = options[:reason].to_s unless options[:reason].nil?
response[2] = [options[:body]] unless options[:body].nil?
response
end
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#run ⇒ Object
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 86
def run
Rack::Server.start(
:app => self,
:Host => @options[:host],
:Port => @options[:port]
)
@running = true
end
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#running? ⇒ Boolean
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 95
def running?
!!@running
end
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#stop ⇒ Object
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# File 'lib/protobuf/rpc/servers/http/server.rb', line 99
def stop
end
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