[613] | 1 | HLTPCK1A ;SAW/AISC-Message Header Validation Routine for HL7 (Con't) ;03/24/2004 15:12
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| 2 | ;;1.6;HEALTH LEVEL SEVEN;**2,25,34,57,59,108**;Oct 13, 1995
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| 3 | S ERR=""
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| 4 | SP ;Get local site parameters
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| 5 | S HLPARAM=$$PARAM^HLCS2,HLDOM=$P(HLPARAM,U,2),HLINSTN=$P(HLPARAM,U,6)
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| 6 | MT ;Validate message type
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| 7 | I (ARY("MTN")="") S:(ERR="") ERR="Invalid Message Type" Q
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| 8 | S ARY("MTP")=0
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| 9 | S:(ARY("MTN")'="") ARY("MTP")=+$O(^HL(771.2,"B",ARY("MTN"),0))
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| 10 | I ('ARY("MTP")) S:(ERR="") ERR="Invalid Message Type" Q
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| 11 | ;
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| 12 | AT ;Determine if message is an acknowledgement type
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| 13 | I (("ACK,ADR,MCF,MFK,MFR,ORF,ORR,RRA,RRD,RRE,RRG,TBR"[ARY("MTN"))&($G(MSA)="")) S:(ERR="") ERR="MSA Segment Missing" Q
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| 14 | ;
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| 15 | AAT ;Validate accept ack type and application ack type
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| 16 | I ($G(ARY("ACAT"))'="") I ("AL,NE,ER,SU"'[ARY("ACAT")) S:(ERR="") ERR="Invalid accept ack type" Q
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| 17 | I ($G(ARY("APAT"))'="") I ("AL,NE,ER,SU"'[ARY("APAT")) S:(ERR="") ERR="Invalid application ack type" Q
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| 18 | ;
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| 19 | RA ;Validate receiving application
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| 20 | S ARY("RAN")=$P(HDR,FS,5)
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| 21 | I (ARY("RAN")="") S:(ERR="") ERR="Invalid Receiving Application" Q
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| 22 | S ARY("RAP")=0
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| 23 | ;
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| 24 | ; patch HL*1.6*108 start
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| 25 | ;S:(ARY("RAN")'="") ARY("RAP")=+$O(^HL(771,"B",ARY("RAN"),0))
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| 26 | S:(ARY("RAN")'="") ARY("RAP")=+$O(^HL(771,"B",$E(ARY("RAN"),1,30),0))
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| 27 | I (('ARY("RAP"))&(ARY("RAN")'="")) D
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| 28 | .S X=$$UPPER^HLFNC(ARY("RAN"))
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| 29 | .;S ARY("RAP")=+$O(^HL(771,"B",ARY("RAN"),0))
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| 30 | .S ARY("RAP")=+$O(^HL(771,"B",$E(ARY("RAN"),1,30),0))
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| 31 | ; patch HL*1.6*108 end
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| 32 | ;
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| 33 | I ('ARY("RAP")) S:(ERR="") ERR="Invalid Receiving Application" Q
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| 34 | S X2=$G(^HL(771,ARY("RAP"),0))
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| 35 | I (X2="") S:(ERR="") ERR="Invalid Receiving Application" Q
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| 36 | I ($P(X2,"^",2)'="a") S:(ERR="") ERR="Receiving Application is Inactive" Q
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| 37 | ;
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| 38 | SA ;Validate sending application
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| 39 | S ARY("SAN")=$P(HDR,FS,3)
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| 40 | I (ARY("SAN")="") S:(ERR="") ERR="Invalid Sending Application" Q
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| 41 | S ARY("SAP")=0
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| 42 | ;
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| 43 | ; patch HL*1.6*108 start
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| 44 | ;S:(ARY("SAN")'="") ARY("SAP")=+$O(^HL(771,"B",ARY("SAN"),0))
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| 45 | S:(ARY("SAN")'="") ARY("SAP")=+$O(^HL(771,"B",$E(ARY("SAN"),1,30),0))
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| 46 | I (('ARY("SAP"))&(ARY("SAN")'="")) D
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| 47 | .S X=$$UPPER^HLFNC(ARY("SAN"))
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| 48 | .;S ARY("SAP")=+$O(^HL(771,"B",ARY("SAN"),0))
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| 49 | .S ARY("SAP")=+$O(^HL(771,"B",$E(ARY("SAN"),1,30),0))
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| 50 | ; patch HL*1.6*108 end
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| 51 | ;
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| 52 | I ('ARY("SAP")) S:(ERR="") ERR="Invalid Sending Application" Q
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| 53 | ;
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| 54 | VN ;Validate version number
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| 55 | I (ARY("VER")="") S:(ERR="") ERR="Missing HL7 Version" Q
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| 56 | S X=0
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| 57 | S:(ARY("VER")'="") X=+$O(^HL(771.5,"B",ARY("VER"),0))
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| 58 | S ARY("VEP")=X
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| 59 | I ('X) S:(ERR="") ERR="Invalid HL7 Version" Q
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| 60 | ;
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| 61 | ET ; Check for Event Type if version 2.2 or above
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| 62 | ; if response use message id/original message to resolve event type
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| 63 | ;I ARY("ETN")="",ARY("VER")>2.1,$G(MSA)'="" D Q:ERR]""
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| 64 | ;. ;N HLZMID,HLZEP,HLZ770
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| 65 | ;. ;S HLZMID=$O(^HL(772,"C",+$P(MSA,FS,2),0))
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| 66 | ;. ;I HLZMID D
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| 67 | ;.. ;I '$G(^HL(772,HLZMID,0)) S:(ERR="") ERR="Original Outgoing Message not found" Q
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| 68 | ;.. ;S HLZEP=$P($G(^HL(772,HLZMID,0)),U,10)
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| 69 | ;.. ;I HLZEP'>0 S:(ERR="") ERR="Event Protocol pointer (field #772,10) missing" Q
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| 70 | ;.. ;S HLZ770=$G(^ORD(101,HLZEP,770))
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| 71 | ;.. ;S ARY("ETN")=$P($G(^HL(779.001,+$P(HLZ770,U,4),0)),U)
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| 72 | ;. ;K HLZMID,HLZEP,HLZ770
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| 73 | ;
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| 74 | I (ARY("ETN")=""),ARY("VER")>2.1,$G(MSA)="" S:(ERR="") ERR="Event Type REQUIRED" Q
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| 75 | S ARY("ETP")=0
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| 76 | I $G(MSA)="",(ARY("ETN")'="") S ARY("ETP")=+$O(^HL(779.001,"B",ARY("ETN"),0)) I ('ARY("ETP")) S:(ERR="") ERR="Invalid Event Type" Q
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| 77 | ;
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| 78 | MS ;Check for Message Structure Code
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| 79 | I $G(ARY("MTN_ETN"))'="" D
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| 80 | . S ARY("MTP_ETP")=0
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| 81 | . S ARY("MTP_ETP")=+$O(^HL(779.005,"B",ARY("MTN_ETN"),0))
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| 82 | . I ('ARY("MTP_ETP")) S:(ERR="") ERR="Invalid Message Structure Code" Q
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| 83 | ;
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| 84 | MSA ;Get receiving application data from Protocol file
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| 85 | ;I (ARY("SAP")) D Q:ERR]""
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| 86 | I $D(MSA) D Q
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| 87 | .;Message is an acknowledgement - deliver to Server Protocol that
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| 88 | .; message came from
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| 89 | .I '$G(ARY("SAP")) S ERR="Missing Sending Application" Q
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| 90 | .S ARY("MTIENS")=0
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| 91 | .F S ARY("MTIENS")=+$O(^HL(772,"AH",ARY("SAP"),$P(MSA,FS,2),ARY("MTIENS"))) Q:'ARY("MTIENS")!($P($G(^HL(772,+ARY("MTIENS"),0)),U,4)="O")
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| 92 | .S X=$G(^HL(772,+ARY("MTIENS"),0))
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| 93 | .S ARY("EIDS")=$P(X,"^",10)
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| 94 | .I ('ARY("EIDS")) S:(ERR="") ERR="Invalid Message Control ID in MSA Segment" Q
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| 95 | .S ARY("MTIEN")=+$P(X,"^",8)
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| 96 | .S ARY("ACK")=$P(X,"^",7)
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| 97 | .S X=$G(^HL(772,+$P(X,"^",8),0))
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| 98 | .S ARY("EID")=$P(X,"^",10)
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| 99 | .I ('ARY("EID")) S:(ERR="") ERR="Event Protocol not found" Q
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| 100 | .D EVENT^HLUTIL1(ARY("EIDS"),"770,773",.HLN)
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| 101 | .;Get Logical Link info if defined on subscriber
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| 102 | .S ARY("LL")=$P($G(HLN(770)),"^",7)
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| 103 | ;
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| 104 | I ARY("MTP") D
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| 105 | .;Find Server Protocol - based on sending application, message type,
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| 106 | .;event type and version ID
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| 107 | .I ARY("ETP") S ARY("EID")=+$O(^ORD(101,"AHL1",ARY("SAP"),ARY("MTP"),ARY("ETP"),ARY("VEP"),0))
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| 108 | .;
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| 109 | .;Find Server Protocol - based on sending application, message type,
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| 110 | .;and version ID
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| 111 | .I 'ARY("ETP") S ARY("EID")=+$O(^ORD(101,"AHL21",ARY("SAP"),ARY("MTP"),ARY("VEP"),0))
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| 112 | .;
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| 113 | .I ('ARY("EID")) S:(ERR="") ERR="Event Protocol not found" Q
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| 114 | .;Find Client Protocol - in ITEM multiple of Server Protocol
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| 115 | .S ARY("EIDS")=0
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| 116 | .F S ARY("EIDS")=+$O(^ORD(101,ARY("EID"),775,"B",ARY("EIDS"))) Q:('ARY("EIDS")) D Q:$G(X1)
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| 117 | ..S (X,X1)=0
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| 118 | ..S X=$G(^ORD(101,ARY("EIDS"),770))
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| 119 | ..I $P(X,U,2)=ARY("RAP") S X1=1
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| 120 | .I 'ARY("EIDS") S:(ERR="") ERR="Invalid Receiving Application for this Event" Q
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| 121 | .D EVENT^HLUTIL1(ARY("EIDS"),"770,773",.HLN)
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| 122 | ;
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| 123 | LLP ;Get logical link pointer
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| 124 | S ARY("LL")=$P($G(HLN(770)),"^",7)
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| 125 | ;
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| 126 | FAC ;Get sending/rec facility, validate if necessary
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| 127 | ;
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| 128 | S HLCS=$E(ECH,1) ;Get component separator
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| 129 | S ARY("RAF")=$P(HDR,FS,6) ;Receiving Facility
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| 130 | S ARY("SAF")=$P(HDR,FS,4) ;Sending Facility
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| 131 | ;Get sending/receiving facility from Application Parameter file(771)
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| 132 | S HL771SF=$P($G(^HL(771,ARY("SAP"),0)),U,3)
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| 133 | S HL771RF=$P($G(^HL(771,ARY("RAP"),0)),U,3)
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| 134 | ;Sending/Receiving facility required?
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| 135 | S X=$G(^ORD(101,ARY("EIDS"),773))
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| 136 | S HLSFREQ=+X,HLRFREQ=+$P(X,U,2)
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| 137 | RF ;Validate Receiving Facility
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| 138 | I HLRFREQ D
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| 139 | .I ARY("RAF")="" S:ERR="" ERR="Missing required receiving facility" Q
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| 140 | .I HL771RF]"" D Q
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| 141 | ..;Facility data in 771 overrides data in site paramter file
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| 142 | ..;For backward compatibility, don't validate
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| 143 | ..Q
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| 144 | ..Q:HL771RF=ARY("RAF")
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| 145 | ..S:ERR="" ERR="Receiving Facility/App Parameter mismatch."
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| 146 | .;Check against local default value (site parameters)
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| 147 | .Q:ARY("RAF")=(HLINSTN_HLCS_HLDOM_HLCS_"DNS")
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| 148 | .S:ERR="" ERR="Receiving Facility mismatch."
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| 149 | SF ;Validate Sending Facility
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| 150 | I HLSFREQ D
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| 151 | .I ARY("SAF")="" S:ERR="" ERR="Missing required sending facility" Q
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| 152 | .I HL771SF]"" D Q
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| 153 | ..;Check for facility data in 771
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| 154 | ..Q
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| 155 | ..Q:HL771SF=ARY("SAF")
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| 156 | ..S:ERR="" ERR="Sending Facility/App Parameter mismatch."
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| 157 | .;If default value was sent, validate that DOMAIN RESOLVES TO LOGICAL LINK
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| 158 | .;If so, use this instead of Protocol definition for return path
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| 159 | .S HLDOMP=$P(ARY("SAF"),HLCS,2),HLDOMP=$O(^DIC(4.2,"B",HLDOMP,0))
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| 160 | .I 'HLDOMP S:ERR="" ERR="Unrecognized domain in sending facility"
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| 161 | .Q:HLDOMP=$P(HLPARAM,U) ;This is local app to app
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| 162 | .I HLDOMP N HLNK S HLNK=+$O(^HLCS(870,"D",HLDOMP,0))
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| 163 | .I HLNK S ARY("LL")=HLNK
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| 164 | ;
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| 165 | PID ;Validate processing ID
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| 166 | I ("DTP"'[ARY("PID")) S:(ERR="") ERR="Invalid HL7 Processing ID" Q
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| 167 | S HLPID=$P(HLPARAM,U,3) ;site param
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| 168 | S X=$G(^ORD(101,ARY("EID"),770)),X=$P(X,U,6) ;event driver
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| 169 | ;I X=""&($G(HLPID))="" S:ERR="" ERR="Cannot validate PROCESSING ID"
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| 170 | ;If message is 'debug' then event driver must be 'debug.'
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| 171 | ;If message is 'test' or 'production', then site param must match
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| 172 | I ARY("PID")="D"&(X'="D") S:ERR="" ERR="Processing ID Mismatch with Event Driver"
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| 173 | I ARY("PID")'="D"&(HLPID'=ARY("PID")) S:ERR="" ERR="Processing ID Mismatch with Site Parameters"
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| 174 | ;
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| 175 | SEC ;Validate security field - access code and electronic signature
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| 176 | I ($P($G(HLN(773)),"^",3)) D
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| 177 | .S X=$P($P(HDR,FS,8),$E(ECH))
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| 178 | .S X=$$UPPER^HLFNC(X)
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| 179 | .D ^XUSHSH
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| 180 | .I ((X="")&('$D(MSA))) S:(ERR="") ERR="Invalid access code" Q
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| 181 | .S ARY("DUZ")=0
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| 182 | .S:(X'="") ARY("DUZ")=+$O(^VA(200,"A",X,0))
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| 183 | .I ('ARY("DUZ")) S:(ERR="") ERR="Invalid access code" Q
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| 184 | .I (($P($G(^VA(200,ARY("DUZ"),.1)),"^")="")&('$D(MSA))) S ARY("DUZ")=0 S:(ERR="") ERR="Invalid access code" Q
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| 185 | .S X=$P($P(HDR,FS,8),$E(ECH),3) I (X'="") D
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| 186 | ..S X1=$G(^VA(200,ARY("DUZ"),20))
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| 187 | ..I (X1="") S:(ERR="") ERR="No Signature Code on File" Q
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| 188 | ..S X=$$UPPER^HLFNC(X)
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| 189 | ..D HASH^XUSHSHP
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| 190 | ..I ((X'=$P(X1,"^",4))!($P(X1,"^",2)="")) S:(ERR="") ERR="Invalid Electronic Signature Code" Q
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| 191 | ..S ARY("ESIG")=$P(X1,"^",2)
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| 192 | I $D(ARY) M HLREC=ARY
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| 193 | Q
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