62 lines
2.5 KiB
Mathematica
62 lines
2.5 KiB
Mathematica
VAQHSH ;ALB/JRP - ENCRYPT A DISPLAY ARRAY;29-MAR-93
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;;1.5;PATIENT DATA EXCHANGE;;NOV 17, 1993
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ENCDSP(TRAN,ROOT,ENCPTR,DSPOFF,DSPCNT) ;ENCRYPT A DISPLAY
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;INPUT : TRAN - Pointer to VAQ - TRANSACTION file
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; ROOT - Where the Display Array is (full global reference)
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; ENCPTR - Pointer to VAQ - ENCRYPTION METHOD file
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; DSPOFF - Offset into Display Array to begin at
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; Only used for Display Arrays (defaults to 0)
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; DSPCNT - Number of lines in Display Array
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; Only used for Display Arrays (defaults to full array)
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;OUTPUT : 0 - Success
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; -1^Error_Text - Error
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;NOTES : If TRAN>0
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; Encryption will be based on the transaction
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; Keys will come from the transaction
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; Else
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; Encryption will be based on ENCPTR
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; Keys based on current user
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; : Existance of TRAN takes precedence over ENCPTR
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;
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;CHECK INPUT
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S TRAN=+$G(TRAN)
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S ENCPTR=+$G(ENCPTR)
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Q:(('TRAN)&('ENCPTR)) "-1^Did not pass pointer to transaction or encryption method"
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I (TRAN) Q:('$D(^VAT(394.61,TRAN))) "-1^Did not pass valid pointer to VAQ - TRANSACTION file"
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I (TRAN) S ENCPTR=$$TRANENC^VAQUTL3(TRAN,1) Q:('ENCPTR) "-1^Transaction did not contain pointer to encryption method"
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Q:('ENCPTR) "-1^Did not pass encryption method"
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Q:($G(ROOT)="") "-1^Did not pass location of extracted segment"
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S DSPOFF=+$G(DSPOFF)
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S DSPCNT=+$G(DSPCNT)
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;DECLARE VARIABLES
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N TMP,ENCMTHD,ENCSTR,STRING,KEY1,KEY2,ERROR,SEQ,SENDER
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S ERROR=0
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;GET ENCRYPTION METHOD
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S TMP=$$ENCMTHD^VAQUTL2(ENCPTR,0)
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Q:(TMP="") "-1^Could not determine encryption method"
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S ENCMTHD="S ENCSTR="_TMP
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;DETERMINE PRIMARY KEY
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I (TRAN) S SENDER=$$SENDER^VAQCON2(TRAN) Q:($P(SENDER,"^",1)="-1") "-1^Could not determine encryption keys"
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S:(TRAN) SENDER=$P(SENDER,"^",1)
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S:(TRAN) KEY1=$$NAMEKEY^VAQUTL3(SENDER,1)
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S:('TRAN) KEY1=$$DUZKEY^VAQUTL3($G(DUZ),1)
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;DETERMINE SECONDARY KEY
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S:(TRAN) KEY2=$$NAMEKEY^VAQUTL3(SENDER,0)
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S:('TRAN) KEY2=$$DUZKEY^VAQUTL3($G(DUZ),0)
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Q:((KEY1="")!(KEY2="")) "-1^Could not determine encryption keys"
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;LOOP THROUGH EACH LINE IN DISPLAY
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S TMP=DSPOFF-.999999999
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F SEQ=1:1 Q:((DSPCNT)&(SEQ>DSPCNT)) D Q:((TMP="")!(ERROR))
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.S TMP=$O(@ROOT@("DISPLAY",TMP))
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.Q:(TMP="")
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.;GET LINE
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.S STRING=@ROOT@("DISPLAY",TMP,0)
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.;ENCRYPT LINE (DON'T ENCRYPT A NULL LINE)
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.Q:(STRING="")
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.X ENCMTHD
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.I (ENCSTR="") S ERROR="-1^Error using encryption method" Q
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.;STORE ENCRYPTED LINE
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.S @ROOT@("DISPLAY",TMP,0)=ENCSTR
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Q:(ERROR) ERROR
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Q 0
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