157 lines
8.5 KiB
Text
157 lines
8.5 KiB
Text
-- | This module provides functions to display errors in a fancy way.
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module App.DisplayErrors where
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import Prelude (show, ($), (<>))
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-- import Data.Foldable as Foldable
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import Data.Maybe (Maybe(..), maybe)
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import Halogen.HTML as HH
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import App.Validation.DNS as ValidationDNS
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import App.Validation.Label as ValidationLabel
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import GenericParser.DomainParser.Common (DomainError(..)) as DomainParser
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import GenericParser.IPAddress as IPAddress
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import Bulma as Bulma
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error_to_paragraph :: forall w i. ValidationDNS.Error -> HH.HTML w i
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error_to_paragraph v = Bulma.error_message (Bulma.p $ show_error_title v)
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(case v of
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ValidationDNS.UNKNOWN -> Bulma.p "An internal error happened."
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ValidationDNS.VEIPv4 err -> maybe default_error show_error_ip4 err.error
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ValidationDNS.VEIPv6 err -> maybe default_error show_error_ip6 err.error
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ValidationDNS.VEName err -> maybe default_error show_error_domain err.error
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ValidationDNS.VETTL min max n -> Bulma.p $ "TTL should have a value between " <> show min <> " and " <> show max
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<> ", current value: " <> show n <> "."
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ValidationDNS.VETXT err -> maybe default_error show_error_txt err.error
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ValidationDNS.VECNAME err -> maybe default_error show_error_domain err.error
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ValidationDNS.VENS err -> maybe default_error show_error_domain err.error
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ValidationDNS.VEMX err -> maybe default_error show_error_domain err.error
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ValidationDNS.VEPriority min max n -> Bulma.p $ "Priority should have a value between " <> show min <> " and " <> show max
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<> ", current value: " <> show n <> "."
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ValidationDNS.VESRV err -> maybe default_error show_error_domain err.error
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ValidationDNS.VEProtocol err -> maybe protocol_error show_error_protocol err.error
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ValidationDNS.VEPort min max n -> Bulma.p $ "Port should have a value between " <> show min <> " and " <> show max
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<> ", current value: " <> show n <> "."
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ValidationDNS.VEWeight min max n -> Bulma.p $ "Weight should have a value between " <> show min <> " and " <> show max
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<> ", current value: " <> show n <> "."
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-- SPF dedicated RR
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ValidationDNS.VESPFMechanismName err -> maybe default_error show_error_domain err.error
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ValidationDNS.VESPFMechanismIPv4 err -> maybe default_error show_error_ip4 err.error
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ValidationDNS.VESPFMechanismIPv6 err -> maybe default_error show_error_ip6 err.error
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ValidationDNS.VESPFModifierName err -> maybe default_error show_error_domain err.error
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ValidationDNS.DKIMInvalidKeySize min max -> show_error_key_sizes min max
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)
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where default_error = Bulma.p ""
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protocol_error = Bulma.p "Accepted protocols are: tcp, udp. You need more? Contact us."
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show_error_key_sizes :: forall w i. Int -> Int -> HH.HTML w i
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show_error_key_sizes min max
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= Bulma.p $ "Chosen signature algorithm only accepts public key input between "
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<> show min <> " and " <> show max <> " characters."
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-- | `show_error_title` provide a simple title string to display to the user in case of an error with an entry.
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show_error_title :: ValidationDNS.Error -> String
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show_error_title v = case v of
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ValidationDNS.UNKNOWN -> "Unknown"
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ValidationDNS.VEIPv4 _ -> "Invalid IPv4 address"
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ValidationDNS.VEIPv6 _ -> "Invalid IPv6 address"
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ValidationDNS.VEName _ -> "Invalid Name (domain label)"
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ValidationDNS.VETTL _ _ _ -> "Invalid TTL"
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ValidationDNS.VETXT _ -> "Invalid TXT"
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ValidationDNS.VECNAME _ -> "Invalid CNAME"
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ValidationDNS.VENS _ -> "Invalid NS Target"
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ValidationDNS.VEMX _ -> "Invalid MX Target"
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ValidationDNS.VEPriority _ _ _ -> "Invalid Priority"
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ValidationDNS.VESRV _ -> "Invalid SRV Target"
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ValidationDNS.VEProtocol _ -> "Invalid Protocol"
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ValidationDNS.VEPort _ _ _ -> "Invalid Port"
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ValidationDNS.VEWeight _ _ _ -> "Invalid Weight"
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-- SPF dedicated RR
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ValidationDNS.VESPFMechanismName _ -> "The domain name in a SPF mechanism is wrong"
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ValidationDNS.VESPFMechanismIPv4 _ -> "The IPv4 address in a SPF mechanism is wrong"
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ValidationDNS.VESPFMechanismIPv6 _ -> "The IPv6 address in a SPF mechanism is wrong"
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ValidationDNS.VESPFModifierName _ -> "The domain name in a SPF modifier (EXP or REDIRECT) is wrong"
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ValidationDNS.DKIMInvalidKeySize _ _ -> "Public key has an invalid length"
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show_error_domain :: forall w i. DomainParser.DomainError -> HH.HTML w i
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show_error_domain e = case e of
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DomainParser.LabelTooLarge size ->
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Bulma.p $ "The label contains too many characters (" <> show size <> ")."
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DomainParser.DomainTooLarge size ->
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Bulma.p $ "The domain contains too many characters (" <> show size <> ")."
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-- DomainParser.InvalidCharacter
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-- DomainParser.EOFExpected
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_ -> Bulma.p """
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The domain (or label) contains invalid characters.
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A domain label should start with a letter,
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then eventually a series of letters, digits and hyphenations ("-"),
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and must finish with either a letter or a digit.
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"""
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show_error_protocol :: forall w i. ValidationDNS.ProtocolError -> HH.HTML w i
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show_error_protocol e = case e of
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ValidationDNS.InvalidProtocol -> Bulma.p "Protocol should be a value as 'tcp' or 'udp'."
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show_error_ip6 :: forall w i. IPAddress.IPv6Error -> HH.HTML w i
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show_error_ip6 e = case e of
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IPAddress.IP6TooManyHexaDecimalCharacters ->
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Bulma.p "IP6TooManyHexaDecimalCharacters"
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IPAddress.IP6NotEnoughChunks ->
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Bulma.p """
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The IPv6 representation is erroneous, it should contain 8 groups of hexadecimal characters or
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being shortened with a double ':' character, such as '2000::1'.
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"""
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IPAddress.IP6TooManyChunks ->
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Bulma.p "The IPv6 representation is erroneous. It should contain only up to 8 groups of hexadecimal characters."
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IPAddress.IP6IrrelevantShortRepresentation ->
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Bulma.p "IPv6 address has been unnecessarily shortened (with two ':')."
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IPAddress.IP6InvalidRange -> Bulma.p "IPv6 address or range isn't valid."
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show_error_ip4 :: forall w i. IPAddress.IPv4Error -> HH.HTML w i
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show_error_ip4 e = case e of
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IPAddress.IP4NumberTooBig n ->
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Bulma.p $ "IPv4 address contains a number too big (should be between 0 and 255). Current entered number: " <> show n
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IPAddress.IP4IrrelevantShortRepresentation ->
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Bulma.p "IPv4 address has been unnecessarily shortened (with two '.')."
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IPAddress.IP4InvalidRange -> Bulma.p "IPv4 address or range isn't valid."
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show_error_txt :: forall w i. ValidationDNS.TXTError -> HH.HTML w i
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show_error_txt e = case e of
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ValidationDNS.TXTInvalidCharacter -> Bulma.p "The TXT field contains some invalid characters."
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ValidationDNS.TXTTooLong max n ->
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Bulma.p $ "An TXT field is limited to " <> show max <> " characters (currently there are "
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<> show n <> " characters)."
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domainerror_string :: DomainParser.DomainError -> String
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domainerror_string (DomainParser.LabelTooLarge size) = "LabelTooLarge (size: " <> show size <> ")"
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domainerror_string (DomainParser.DomainTooLarge size) = "DomainTooLarge (size: " <> show size <> ")"
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domainerror_string (DomainParser.InvalidCharacter) = "InvalidCharacter"
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domainerror_string (DomainParser.EOFExpected) = "EOFExpected"
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-- | This `error_to_paragraph` is designed to go along the `Validation.Label` module.
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error_to_paragraph_label :: forall w i. ValidationLabel.Error -> HH.HTML w i
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error_to_paragraph_label v = Bulma.error_message (Bulma.p $ show_error_title_label v)
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(case v of
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ValidationLabel.ParsingError x -> case x.error of
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Nothing -> Bulma.p ""
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Just (ValidationLabel.CannotParse err) -> show_error_domain err
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Just (ValidationLabel.CannotEntirelyParse) -> Bulma.p "Cannot entirely parse the label."
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Just (ValidationLabel.Size min max n) ->
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Bulma.p $ "Label size should be between " <> show min <> " and " <> show max
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<> " (current size: " <> show n <> ")."
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)
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show_error_title_label :: ValidationLabel.Error -> String
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show_error_title_label v = case v of
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ValidationLabel.ParsingError x -> case x.error of
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Nothing -> "Invalid label"
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Just (ValidationLabel.CannotParse _) ->
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"Invalid label"
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Just (ValidationLabel.CannotEntirelyParse) -> "Invalid label (cannot entirely parse the label)"
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Just (ValidationLabel.Size min max n) ->
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"Label size should be between " <> show min <> " and " <> show max
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<> " (current size: " <> show n <> ")."
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