CAP-1-1 {itu-t recommendation x cap(1303) version1-1(1)}
DEFINITIONS XER INSTRUCTIONS AUTOMATIC TAGS ::=

-- CAP Alert Message (version 1.1)
BEGIN
-- References in comments to clauses outside this module refer to
-- ITU-T Recommendation X.1303 (09/2007).
-- This ASN.1 module is also included in OASIS CAP v1.1 Errata
-- (approved on 2 October 2007), and the references there are to
-- clauses 3.2.x as in OASIS CAP v1.1 and not clauses 7.2.x as
-- in ITU-T X.1303
Alert ::= SEQUENCE {
  identifier   IdentifierString,
  -- Unambiguous identification of the message 
  -- from all messages from
  -- this sender, in a format defined by the sender and 
  -- identified in the "sender" field below.
  sender       String,
  -- The globally unambiguous identification of the sender.
  -- This specification does not define the root of 
  -- a global identification tree (there is no international 
  -- agreement on such a root), so it relies
  -- on human-readable text to define globally and 
  -- unambiguously the sender.
  -- An internet domain name or use of "iri:/ITU-T/..." 
  -- are possible, but
  -- the choice needs to be clearly stated in human-readable form.
  sent         DateTime,
  status       AlertStatus,
  msgType      AlertMessageType,
  source       String OPTIONAL,
  -- Not standardised human-readable identification 
  -- of the source of the alert.
  scope        AlertScope,
  restriction  String OPTIONAL,
  -- Not standardised human-readable restrictions 
  -- on the distribution of the alert message
  addresses    String OPTIONAL,
  -- A space separated list of addressees for private messages
  -- (see 7.2.1)
  code-list    SEQUENCE SIZE ((0..MAX)) OF code String,
  -- A sequence codes for special handling
  -- (see 7.2.1)
  -- The format and semantics of the codes are not defined in this
  -- specification.
  note         String OPTIONAL,
  -- Not standardised human-readable clarifying text for the alert
  -- (see 7.2.1)
  references   String OPTIONAL,
  -- Space-separated references to earlier messages
  -- (see 7.2.1)
  incidents    String OPTIONAL,
  -- Space-separated references to related incidents
  -- (see 7.2.1)
  info-list    SEQUENCE SIZE ((0..MAX)) OF info AlertInformation
}

AlertStatus ::= ENUMERATED {actual, draft, exercise, system, test}

AlertMessageType ::= ENUMERATED {ack, alert, cancel, error, update}

AlertScope ::= ENUMERATED {private, public, restricted}

AlertInformation ::= SEQUENCE {
  language           Language-- DEFAULT "en-US" -- ,
  -- The language used in this value of the Info type
  -- (see 7.2.2)
  category-list      SEQUENCE (SIZE (1..MAX)) OF category InformationCategory,
  event              String,
  -- Not standardised human-readable text describing the 
  -- type of the event (see 7.2.2)
  responseType-list
    SEQUENCE SIZE ((0..MAX)) OF responseType InformationResponseType,
  urgency            HowUrgent,
  severity           HowSevere,
  certainty          HowCertain,
  audience           String OPTIONAL,
  -- Not standardised human-readable text describing the 
  -- intended audience for the message (see 7.2.2)
  eventCode-list
    SEQUENCE SIZE ((0..MAX)) OF eventCode
      SEQUENCE {valueName  ValueName,
                value      Value},
  effective          DateTime OPTIONAL,
  onset              DateTime OPTIONAL,
  expires            DateTime OPTIONAL,
  senderName         String OPTIONAL,
  -- Not standardised human-readable name of the authority 
  -- issuing the message (see 7.2.2)
  headline           String(SIZE (1..160, ...)) OPTIONAL,
  -- Not standardised human-readable short statement (headline) 
  -- of the alert (see 7.2.2)
  description        String OPTIONAL,
  -- Not standardised human-readable extended description of 
  -- the event (see 7.2.2)
  instruction        String OPTIONAL,
  -- Not standardised human-readable recommended action
  -- (see 7.2.2)
  web                AnyURI OPTIONAL,
  contact            String OPTIONAL,
  -- Not standardised human-readable contact details for 
  -- follow-up (see 7.2.2)
  parameter-list
    SEQUENCE SIZE ((0..MAX)) OF parameter
      SEQUENCE {-- System-specific parameters (see 7.2.2)
                valueName  ValueName,
                value      Value},
  resource-list      SEQUENCE SIZE ((0..MAX)) OF resource ResourceFile,
  area-list          SEQUENCE SIZE ((0..MAX)) OF Area
}

InformationCategory ::= ENUMERATED {
  cBRNE, env, fire, geo, health, infra, met, other, rescue, safety, security,
  transport}

InformationResponseType ::= ENUMERATED {
  assess, evacuate, execute, monitor, none, prepare, shelter}

HowUrgent ::= ENUMERATED {expected, future, immediate, past, unknown}

HowSevere ::= ENUMERATED {extreme, minor, moderate, severe, unknown}

HowCertain ::= ENUMERATED {likely, observed, possible, unknown, unlikely}

ResourceFile ::= SEQUENCE {
  -- Information about an associated resource file
  -- (see 7.2.3)
  resourceDesc  String,
  -- Not standardised human-readable description of the type 
  -- and content of
  -- an associated resource file (for example a map or 
  -- photograph)(see 7.2.3)
  mimeType      String OPTIONAL,
  size          INTEGER OPTIONAL, -- In bytes
  uri           AnyURI OPTIONAL,
  derefUri      String OPTIONAL,
  -- An alternative to the URI giving the Base64-encoded 
  -- content of the resource file (see 7.2.3)
  digest        String OPTIONAL-- SHA-1 hash of the resource file for error detection
-- (see 7.2.3) 
}

Area ::= SEQUENCE {
  -- Identification of an affected area
  areaDesc      String,
  -- Not standardised human-readable description of the area
  polygon-list  SEQUENCE OF polygon String,
  -- Each element is a space-separated list of coordinate pairs
  -- The complete list starts and ends with the same point and
  -- defines the polygon that defines the area 
  -- (see 7.2.4).
  circle-list   SEQUENCE OF circle String,
  -- A space-separated list of coordinates for a point and a radius
  geocode-list
    SEQUENCE SIZE ((0..MAX)) OF geocode
      SEQUENCE {-- A geographic code designating the alert target area
                -- (see 7.2.4)
                valueName  ValueName,
                value      Value},
  altitude      String OPTIONAL,
  -- Specific or minimum altitude of the affected area
  ceiling       String OPTIONAL
  -- Maximum altitude of the affected area 
}

ValueName ::= String -- A not standardised name for 

-- an information event code, a parameter or a geocode
Value ::=
  String -- The value of the information event code,

-- parameter or geocode
String ::=
  UTF8String
    (FROM ({0,
            0,
            0,
            9} -- TAB  | {0, 0, 0, 10} -- CR | {0, 0, 0, 13} -- LF  |
           {0, 0, 0, 32}..{0, 0, 215, 255} -- Space to the start of the S-zone
           | {0, 0, 224, 0}..{0, 0, 255, 253} -- Rest of BMP after S-zone |
           {0, 1, 0, 0}..{0, 16, 255, 253} -- Other planes --))

StringChar ::= String(SIZE (1))

SpaceAndComma ::=
  UTF8String(FROM ({0,
                    0,
                    0,
                    32} -- SPACE | {0, 0, 0, 44} -- COMMA --))

IdentifierString ::= String(FROM (StringChar EXCEPT SpaceAndComma))

Language ::=
  VisibleString(FROM ("a".."z" | "A".."Z" | "-" | "0".."9"))
    (PATTERN "[a-zA-Z]#(1,8)(-[a-zA-Z0-9]#(1,8))*")
-- The semantics of Language is specified in IETF RFC 3066

DateTime ::= TIME (SETTINGS "Basic=Date-Time Date=YMD Year=Basic Time=HMS Local-or-UTC=LD")
-- This is the ISO 8601 format using local time and a 
-- time difference
StringWithNoCRLFHT ::=
  UTF8String
    (FROM ({0,
            0,
            0,
            32}..{0, 0, 215, 255} | {0, 0, 224, 0}..{0, 0, 255, 253} |
           {0, 1, 0, 0}..{0, 16, 255, 255}))

AnyURI ::=
  StringWithNoCRLFHT
    (CONSTRAINED BY {
       /* Shall be a valid URI as defined in IETF RFC 2396 */})

ENCODING-CONTROL XER
    GLOBAL-DEFAULTS MODIFIED-ENCODINGS
    GLOBAL-DEFAULTS CONTROL-NAMESPACE
        "http://www.w3.org/2001/XMLSchema-instance" PREFIX "xsi"
    NAMESPACE ALL, ALL IN ALL AS "urn:oasis:names:tc:emergency:cap:1.1"
              PREFIX "cap"
    NAME Alert, Area AS UNCAPITALIZED
    UNTAGGED SEQUENCE OF
    DEFAULT-FOR-EMPTY AlertInformation.language AS "en-US"
    TEXT AlertStatus:ALL, 
         AlertMessageType:ALL, 
         AlertScope:ALL, 
         InformationCategory:ALL, 
         InformationResponseType:ALL, 
         HowUrgent:ALL,
         HowSevere:ALL, 
         HowCertain:ALL AS CAPITALIZED
    WHITESPACE Language, AnyURI COLLAPSE
END