X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Network%2FHTTP%2FLucu%2FResponse.hs;h=9239cba0462ec3e889771da1acff3162f4409103;hb=0dc3d31312a12f2b085242841b29eb0d96e9c4ac;hp=0e6fbe2d8f2bb120b9f229cc5290db9610cb5957;hpb=3c7a58ab749a55a30466a033b170536bcdf18b98;p=Lucu.git diff --git a/Network/HTTP/Lucu/Response.hs b/Network/HTTP/Lucu/Response.hs index 0e6fbe2..9239cba 100644 --- a/Network/HTTP/Lucu/Response.hs +++ b/Network/HTTP/Lucu/Response.hs @@ -1,17 +1,30 @@ +-- #prune + +-- |Definition of things related on HTTP response. module Network.HTTP.Lucu.Response ( StatusCode(..) , Response(..) - , hPutResponse -- Handle -> Response -> IO () - , isInformational -- StatusCode -> Bool - , isError -- StatusCode -> Bool + , hPutResponse + , isInformational + , isSuccessful + , isRedirection + , isError + , isClientError + , isServerError + , statusCode ) where +import Data.Dynamic +import Network.HTTP.Lucu.Format import Network.HTTP.Lucu.Headers import Network.HTTP.Lucu.HttpVersion import System.IO -import Text.Printf +-- |This is the definition of HTTP status code. +-- 'Network.HTTP.Lucu.Resource.setStatus' accepts these named statuses +-- so you don't have to memorize, for instance, that \"Gateway +-- Timeout\" is 504. data StatusCode = Continue | SwitchingProtocols | Processing @@ -62,20 +75,20 @@ data StatusCode = Continue | GatewayTimeout | HttpVersionNotSupported | InsufficientStorage - deriving (Eq) + deriving (Typeable, Eq) instance Show StatusCode where - show sc = let (num, msg) = statusCode sc + show sc = let (# num, msg #) = statusCode sc in - printf "%03d %s" num msg + (fmtDec 3 num) ++ " " ++ msg data Response = Response { - resVersion :: HttpVersion - , resStatus :: StatusCode - , resHeaders :: Headers - } - deriving (Show, Eq) + resVersion :: !HttpVersion + , resStatus :: !StatusCode + , resHeaders :: !Headers + } deriving (Show, Eq) + instance HasHeaders Response where getHeaders = resHeaders @@ -83,75 +96,100 @@ instance HasHeaders Response where hPutResponse :: Handle -> Response -> IO () -hPutResponse h res = do hPutHttpVersion h (resVersion res) - hPutChar h ' ' - hPutStatus h (resStatus res) - hPutStr h "\r\n" - hPutHeaders h (resHeaders res) +hPutResponse h res + = h `seq` res `seq` + do hPutHttpVersion h (resVersion res) + hPutChar h ' ' + hPutStatus h (resStatus res) + hPutStr h "\r\n" + hPutHeaders h (resHeaders res) hPutStatus :: Handle -> StatusCode -> IO () -hPutStatus h sc = let (num, msg) = statusCode sc - in - hPrintf h "%03d %s" num msg - +hPutStatus h sc + = h `seq` sc `seq` + hPutStr h (show sc) +-- |@'isInformational' sc@ is 'Prelude.True' iff @sc < 200@. isInformational :: StatusCode -> Bool -isInformational sc = let (num, _) = statusCode sc - in num < 200 +isInformational = doesMeet (< 200) + +-- |@'isSuccessful' sc@ is 'Prelude.True' iff @200 <= sc < 300@. +isSuccessful :: StatusCode -> Bool +isSuccessful = doesMeet (\ n -> n >= 200 && n < 300) + +-- |@'isRedirection' sc@ is 'Prelude.True' iff @300 <= sc < 400@. +isRedirection :: StatusCode -> Bool +isRedirection = doesMeet (\ n -> n >= 300 && n < 400) +-- |@'isError' sc@ is 'Prelude.True' iff @400 <= sc@ isError :: StatusCode -> Bool -isError sc = let (num, _) = statusCode sc - in num >= 400 +isError = doesMeet (>= 400) + +-- |@'isClientError' sc@ is 'Prelude.True' iff @400 <= sc < 500@. +isClientError :: StatusCode -> Bool +isClientError = doesMeet (\ n -> n >= 400 && n < 500) + +-- |@'isServerError' sc@ is 'Prelude.True' iff @500 <= sc@. +isServerError :: StatusCode -> Bool +isServerError = doesMeet (>= 500) + + +doesMeet :: (Int -> Bool) -> StatusCode -> Bool +doesMeet p sc = let (# num, _ #) = statusCode sc + in + p num -statusCode :: StatusCode -> (Int, String) -statusCode Continue = (100, "Continue") -statusCode SwitchingProtocols = (101, "Switching Protocols") -statusCode Processing = (102, "Processing") +-- |@'statusCode' sc@ returns a tuple of numeric and textual +-- representation of @sc@. +statusCode :: StatusCode -> (# Int, String #) +statusCode Continue = (# 100, "Continue" #) +statusCode SwitchingProtocols = (# 101, "Switching Protocols" #) +statusCode Processing = (# 102, "Processing" #) -- -statusCode Ok = (200, "OK") -statusCode Created = (201, "Created") -statusCode Accepted = (202, "Accepted") -statusCode NonAuthoritativeInformation = (203, "Non Authoritative Information") -statusCode NoContent = (204, "No Content") -statusCode ResetContent = (205, "Reset Content") -statusCode PartialContent = (206, "Partial Content") -statusCode MultiStatus = (207, "Multi Status") +statusCode Ok = (# 200, "OK" #) +statusCode Created = (# 201, "Created" #) +statusCode Accepted = (# 202, "Accepted" #) +statusCode NonAuthoritativeInformation = (# 203, "Non Authoritative Information" #) +statusCode NoContent = (# 204, "No Content" #) +statusCode ResetContent = (# 205, "Reset Content" #) +statusCode PartialContent = (# 206, "Partial Content" #) +statusCode MultiStatus = (# 207, "Multi Status" #) -- -statusCode MultipleChoices = (300, "Multiple Choices") -statusCode MovedPermanently = (301, "Moved Permanently") -statusCode Found = (302, "Found") -statusCode SeeOther = (303, "See Other") -statusCode NotModified = (304, "Not Modified") -statusCode UseProxy = (305, "Use Proxy") -statusCode TemporaryRedirect = (306, "Temporary Redirect") +statusCode MultipleChoices = (# 300, "Multiple Choices" #) +statusCode MovedPermanently = (# 301, "Moved Permanently" #) +statusCode Found = (# 302, "Found" #) +statusCode SeeOther = (# 303, "See Other" #) +statusCode NotModified = (# 304, "Not Modified" #) +statusCode UseProxy = (# 305, "Use Proxy" #) +statusCode TemporaryRedirect = (# 306, "Temporary Redirect" #) -- -statusCode BadRequest = (400, "Bad Request") -statusCode Unauthorized = (401, "Unauthorized") -statusCode PaymentRequired = (402, "Payment Required") -statusCode Forbidden = (403, "Forbidden") -statusCode NotFound = (404, "Not Found") -statusCode MethodNotAllowed = (405, "Method Not Allowed") -statusCode NotAcceptable = (406, "Not Acceptable") -statusCode ProxyAuthenticationRequired = (407, "Proxy Authentication Required") -statusCode RequestTimeout = (408, "Request Timeout") -statusCode Conflict = (409, "Conflict") -statusCode Gone = (410, "Gone") -statusCode LengthRequired = (411, "Length Required") -statusCode PreconditionFailed = (412, "Precondition Failed") -statusCode RequestEntityTooLarge = (413, "Request Entity Too Large") -statusCode RequestURITooLarge = (414, "Request URI Too Large") -statusCode UnsupportedMediaType = (415, "Unsupported Media Type") -statusCode RequestRangeNotSatisfiable = (416, "Request Range Not Satisfiable") -statusCode ExpectationFailed = (417, "Expectation Failed") -statusCode UnprocessableEntitiy = (422, "Unprocessable Entity") -statusCode Locked = (423, "Locked") -statusCode FailedDependency = (424, "Failed Dependency") +statusCode BadRequest = (# 400, "Bad Request" #) +statusCode Unauthorized = (# 401, "Unauthorized" #) +statusCode PaymentRequired = (# 402, "Payment Required" #) +statusCode Forbidden = (# 403, "Forbidden" #) +statusCode NotFound = (# 404, "Not Found" #) +statusCode MethodNotAllowed = (# 405, "Method Not Allowed" #) +statusCode NotAcceptable = (# 406, "Not Acceptable" #) +statusCode ProxyAuthenticationRequired = (# 407, "Proxy Authentication Required" #) +statusCode RequestTimeout = (# 408, "Request Timeout" #) +statusCode Conflict = (# 409, "Conflict" #) +statusCode Gone = (# 410, "Gone" #) +statusCode LengthRequired = (# 411, "Length Required" #) +statusCode PreconditionFailed = (# 412, "Precondition Failed" #) +statusCode RequestEntityTooLarge = (# 413, "Request Entity Too Large" #) +statusCode RequestURITooLarge = (# 414, "Request URI Too Large" #) +statusCode UnsupportedMediaType = (# 415, "Unsupported Media Type" #) +statusCode RequestRangeNotSatisfiable = (# 416, "Request Range Not Satisfiable" #) +statusCode ExpectationFailed = (# 417, "Expectation Failed" #) +statusCode UnprocessableEntitiy = (# 422, "Unprocessable Entity" #) +statusCode Locked = (# 423, "Locked" #) +statusCode FailedDependency = (# 424, "Failed Dependency" #) -- -statusCode InternalServerError = (500, "Internal Server Error") -statusCode NotImplemented = (501, "Not Implemented") -statusCode BadGateway = (502, "Bad Gateway") -statusCode ServiceUnavailable = (503, "Service Unavailable") -statusCode GatewayTimeout = (504, "Gateway Timeout") -statusCode HttpVersionNotSupported = (505, "HTTP Version Not Supported") -statusCode InsufficientStorage = (507, "Insufficient Storage") \ No newline at end of file +statusCode InternalServerError = (# 500, "Internal Server Error" #) +statusCode NotImplemented = (# 501, "Not Implemented" #) +statusCode BadGateway = (# 502, "Bad Gateway" #) +statusCode ServiceUnavailable = (# 503, "Service Unavailable" #) +statusCode GatewayTimeout = (# 504, "Gateway Timeout" #) +statusCode HttpVersionNotSupported = (# 505, "HTTP Version Not Supported" #) +statusCode InsufficientStorage = (# 507, "Insufficient Storage" #) \ No newline at end of file