PRCSC3 ;WISC/LEM-ESIG MAINTENANCE ROUTINE ; 08/02/93 8:12 AM
V ;;5.1;IFCAP;**120**;Oct 20, 2000;Build 27
;Per VHA Directive 2004-038, this routine should not be modified.
;ROUTINE FOR MAINTAINING FIELD 44.8 (GPF ELECTRONIC SIGNATURE), FILE 410
DECODE(LEVEL0) ;Extrinsic Function to return hashed electronic sig to readable form.
;returns "" if unsuccessful
NEW RECORD7,RECORD71,VERSION,PERSON,SIG,CHECKSUM
;get record and check version
S RECORD7=$G(^PRCS(410,LEVEL0,7)) I RECORD7="" QUIT ""
S RECORD71=$G(^PRCS(410,LEVEL0,7.1))
S VERSION=$P(RECORD71,"^",1)
S PERSON=+$P(RECORD7,"^",8)
I VERSION'="",VERSION'=1 Q ""
S SIG=$P(RECORD7,"^",9)
D1 ;decode e signature for version 1
S RECORD=$G(^PRCS(410,LEVEL0,0))
S RECORD1=$G(^PRCS(410,LEVEL0,1))
S RECORD3=$G(^PRCS(410,LEVEL0,3))
S RECORD4=$G(^PRCS(410,LEVEL0,4))
S RECORD10=$G(^PRCS(410,LEVEL0,10))
S CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_$$STRING(RECORD,RECORD1,RECORD3,RECORD4,RECORD7,RECORD10))
QUIT $$DECODE^PRCUESIG(SIG,PERSON,CHECKSUM)
ENCODE(LEVEL0,USERNUM,Y) ;Encode e signature for version 1 only
;Parameter passing entry point
NEW SIGBLOCK,CHECKSUM,OLDUSER,HLDCP
NEW RECORD,RECORD1,RECORD3,RECORD4,RECORD7,RECORD71,RECORD10
;get record
S USERNUM=+USERNUM
I USERNUM=0 S Y=-3 QUIT ;-3 no user num available
S SIGBLOCK=$P($G(^VA(200,USERNUM,20)),"^",2)
I SIGBLOCK="" S Y=-2 QUIT ;-2 no sigblock in file 200
S RECORD=$G(^PRCS(410,LEVEL0,0))
S RECORD1=$G(^PRCS(410,LEVEL0,1))
S RECORD3=$G(^PRCS(410,LEVEL0,3))
S RECORD4=$G(^PRCS(410,LEVEL0,4))
S RECORD7=$G(^PRCS(410,LEVEL0,7))
S RECORD71=$G(^PRCS(410,LEVEL0,7.1))
S RECORD10=$G(^PRCS(410,LEVEL0,10))
I RECORD="" S Y=-1 QUIT ;-1 no transaction record
I $P(RECORD7,"^",9)'="" S Y=-4 QUIT ;-4 cannot re-sign record
S OLDUSER=+$P(RECORD7,"^",8)
I OLDUSER=0 S $P(RECORD7,"^",8)=USERNUM
I OLDUSER>0 S USERNUM=OLDUSER
;PRC*5.1*120 will check FCP EDI switch and ALL/DELIVERY ORDER switch to recode record due to auto obligation
I $P($G(XQY0),"^")'="PRCSENRB",$P($G(XQY0),"^")'="PRCSANTN",$P($G(XQY0),"^")'="PRCSRI GENERATE",$P($G(XQY0),"^")'="PRCSEDTD",$P($G(XQY0),"^")'="PRCSAPP" D
. I $G(PRCHDELV),'$G(AUTOOBLG) Q
. S HLDCP=""
. I $P(RECORD4,"^",4)="" S $P(RECORD4,"^",4)=$P($$NOW^PRCUESIG,".",1),^PRCS(410,LEVEL0,4)=RECORD4
. S:$D(PRCB("CP")) HLDCP=PRCB("CP")
. S:$D(PRC("CP")) HLDCP=PRC("CP")
. I $D(PRC("CP")) I ($P($G(^PRC(420,+PRC("SITE"),1,+PRC("CP"),6)),U)="Y")!($P($G(^PRC(420,+PRC("SITE"),3)),U)="Y")!($P($G(^PRC(420,+PRC("SITE"),3)),U,2)'="")!($P($G(^PRC(420,+PRC("SITE"),1,+PRC("CP"),6)),U,2)'="") D
.. Q:$G(PRCHAMDA)=32
.. D ENCODE^PRCSC2(LEVEL0,USERNUM)
. K HLDCP
S:$P(RECORD7,"^",7)="" $P(RECORD7,"^",7)=$$NOW^PRCUESIG
S:$P(RECORD7,"^",10)="" $P(RECORD7,"^",10)=$$NOW^PRCUESIG
S CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_$$STRING(RECORD,RECORD1,RECORD3,RECORD4,RECORD7,RECORD10))
S $P(RECORD7,"^",9)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
S $P(RECORD71,"^",1,2)="1^"_$$SUM^PRCUESIG(SIGBLOCK)
S ^PRCS(410,LEVEL0,7)=RECORD7
S ^PRCS(410,LEVEL0,7.1)=RECORD71
S Y=1 QUIT
REMOVE(LEVEL0) ;Entry point to remove e signature from record
;NOT an extrinsic function
NEW RECORD7,RECORD71
S RECORD7=$G(^PRCS(410,LEVEL0,7))
S RECORD71=$G(^PRCS(410,LEVEL0,7.1))
S $P(RECORD7,"^",8,10)="^^"
S $P(RECORD71,"^",2)=""
S ^PRCS(410,LEVEL0,7)=RECORD7
S ^PRCS(410,LEVEL0,7.1)=RECORD71
QUIT
VERIFY(LEVEL0) ;extrinsic function to verify version 1 signature. Returns 1 if valid, 0 if not valid
NEW RECORD71,VERSION,SIGBLOCK
;get record variables
S RECORD71=$G(^PRCS(410,LEVEL0,7.1))
S VERSION=$P(RECORD71,"^",1),SIGBLOCK=$P(RECORD71,"^",2)
I VERSION_SIGBLOCK="" QUIT 1
QUIT ($$SUM^PRCUESIG($$DECODE(LEVEL0))=SIGBLOCK)
STRING(X,X1,X3,X4,X7,X10) ;Build String of critical fields
NEW RECORD,RECORD7,RECORD71,SIGBLOCK,CHECKSUM,OLDUSER
Q $P(X,"^",1)_"^"_$P(X1,"^",1)_"^"_$P(X3,"^",1)_"^"_$P(X4,"^",1)_"^"_$P(X7,"^",10)_"^"_$P(X10,"^",1)
--- Routine Detail --- with STRUCTURED ROUTINE LISTING ---[H[J[2J[HPRCSC3 3977 printed Apr 09, 2024@21:04:19 Page 2
PRCSC3 ;WISC/LEM-ESIG MAINTENANCE ROUTINE ; 08/02/93 8:12 AM
V ;;5.1;IFCAP;**120**;Oct 20, 2000;Build 27
+1 ;Per VHA Directive 2004-038, this routine should not be modified.
+2 ;ROUTINE FOR MAINTAINING FIELD 44.8 (GPF ELECTRONIC SIGNATURE), FILE 410
DECODE(LEVEL0) ;Extrinsic Function to return hashed electronic sig to readable form.
+1 ;returns "" if unsuccessful
+2 NEW RECORD7,RECORD71,VERSION,PERSON,SIG,CHECKSUM
+3 ;get record and check version
+4 SET RECORD7=$GET(^PRCS(410,LEVEL0,7))
IF RECORD7=""
QUIT ""
+5 SET RECORD71=$GET(^PRCS(410,LEVEL0,7.1))
+6 SET VERSION=$PIECE(RECORD71,"^",1)
+7 SET PERSON=+$PIECE(RECORD7,"^",8)
+8 IF VERSION'=""
IF VERSION'=1
QUIT ""
+9 SET SIG=$PIECE(RECORD7,"^",9)
D1 ;decode e signature for version 1
+1 SET RECORD=$GET(^PRCS(410,LEVEL0,0))
+2 SET RECORD1=$GET(^PRCS(410,LEVEL0,1))
+3 SET RECORD3=$GET(^PRCS(410,LEVEL0,3))
+4 SET RECORD4=$GET(^PRCS(410,LEVEL0,4))
+5 SET RECORD10=$GET(^PRCS(410,LEVEL0,10))
+6 SET CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_$$STRING(RECORD,RECORD1,RECORD3,RECORD4,RECORD7,RECORD10))
+7 QUIT $$DECODE^PRCUESIG(SIG,PERSON,CHECKSUM)
ENCODE(LEVEL0,USERNUM,Y) ;Encode e signature for version 1 only
+1 ;Parameter passing entry point
+2 NEW SIGBLOCK,CHECKSUM,OLDUSER,HLDCP
+3 NEW RECORD,RECORD1,RECORD3,RECORD4,RECORD7,RECORD71,RECORD10
+4 ;get record
+5 SET USERNUM=+USERNUM
+6 ;-3 no user num available
IF USERNUM=0
SET Y=-3
QUIT
+7 SET SIGBLOCK=$PIECE($GET(^VA(200,USERNUM,20)),"^",2)
+8 ;-2 no sigblock in file 200
IF SIGBLOCK=""
SET Y=-2
QUIT
+9 SET RECORD=$GET(^PRCS(410,LEVEL0,0))
+10 SET RECORD1=$GET(^PRCS(410,LEVEL0,1))
+11 SET RECORD3=$GET(^PRCS(410,LEVEL0,3))
+12 SET RECORD4=$GET(^PRCS(410,LEVEL0,4))
+13 SET RECORD7=$GET(^PRCS(410,LEVEL0,7))
+14 SET RECORD71=$GET(^PRCS(410,LEVEL0,7.1))
+15 SET RECORD10=$GET(^PRCS(410,LEVEL0,10))
+16 ;-1 no transaction record
IF RECORD=""
SET Y=-1
QUIT
+17 ;-4 cannot re-sign record
IF $PIECE(RECORD7,"^",9)'=""
SET Y=-4
QUIT
+18 SET OLDUSER=+$PIECE(RECORD7,"^",8)
+19 IF OLDUSER=0
SET $PIECE(RECORD7,"^",8)=USERNUM
+20 IF OLDUSER>0
SET USERNUM=OLDUSER
+21 ;PRC*5.1*120 will check FCP EDI switch and ALL/DELIVERY ORDER switch to recode record due to auto obligation
+22 IF $PIECE($GET(XQY0),"^")'="PRCSENRB"
IF $PIECE($GET(XQY0),"^")'="PRCSANTN"
IF $PIECE($GET(XQY0),"^")'="PRCSRI GENERATE"
IF $PIECE($GET(XQY0),"^")'="PRCSEDTD"
IF $PIECE($GET(XQY0),"^")'="PRCSAPP"
Begin DoDot:1
+23 IF $GET(PRCHDELV)
IF '$GET(AUTOOBLG)
QUIT
+24 SET HLDCP=""
+25 IF $PIECE(RECORD4,"^",4)=""
SET $PIECE(RECORD4,"^",4)=$PIECE($$NOW^PRCUESIG,".",1)
SET ^PRCS(410,LEVEL0,4)=RECORD4
+26 if $DATA(PRCB("CP"))
SET HLDCP=PRCB("CP")
+27 if $DATA(PRC("CP"))
SET HLDCP=PRC("CP")
+28 IF $DATA(PRC("CP"))
IF ($PIECE($GET(^PRC(420,+PRC("SITE"),1,+PRC("CP"),6)),U)="Y")!($PIECE($GET(^PRC(420,+PRC("SITE"),3)),U)="Y")!($PIECE($GET(^PRC(420,+PRC("SITE"),3)),U,2)'="")!($PIECE($GET(^PRC(420,+PRC("SITE"),1,+PRC("CP"),6)),U,2)'
="")
Begin DoDot:2
+29 if $GET(PRCHAMDA)=32
QUIT
+30 DO ENCODE^PRCSC2(LEVEL0,USERNUM)
End DoDot:2
+31 KILL HLDCP
End DoDot:1
+32 if $PIECE(RECORD7,"^",7)=""
SET $PIECE(RECORD7,"^",7)=$$NOW^PRCUESIG
+33 if $PIECE(RECORD7,"^",10)=""
SET $PIECE(RECORD7,"^",10)=$$NOW^PRCUESIG
+34 SET CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_$$STRING(RECORD,RECORD1,RECORD3,RECORD4,RECORD7,RECORD10))
+35 SET $PIECE(RECORD7,"^",9)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
+36 SET $PIECE(RECORD71,"^",1,2)="1^"_$$SUM^PRCUESIG(SIGBLOCK)
+37 SET ^PRCS(410,LEVEL0,7)=RECORD7
+38 SET ^PRCS(410,LEVEL0,7.1)=RECORD71
+39 SET Y=1
QUIT
REMOVE(LEVEL0) ;Entry point to remove e signature from record
+1 ;NOT an extrinsic function
+2 NEW RECORD7,RECORD71
+3 SET RECORD7=$GET(^PRCS(410,LEVEL0,7))
+4 SET RECORD71=$GET(^PRCS(410,LEVEL0,7.1))
+5 SET $PIECE(RECORD7,"^",8,10)="^^"
+6 SET $PIECE(RECORD71,"^",2)=""
+7 SET ^PRCS(410,LEVEL0,7)=RECORD7
+8 SET ^PRCS(410,LEVEL0,7.1)=RECORD71
+9 QUIT
VERIFY(LEVEL0) ;extrinsic function to verify version 1 signature. Returns 1 if valid, 0 if not valid
+1 NEW RECORD71,VERSION,SIGBLOCK
+2 ;get record variables
+3 SET RECORD71=$GET(^PRCS(410,LEVEL0,7.1))
+4 SET VERSION=$PIECE(RECORD71,"^",1)
SET SIGBLOCK=$PIECE(RECORD71,"^",2)
+5 IF VERSION_SIGBLOCK=""
QUIT 1
+6 QUIT ($$SUM^PRCUESIG($$DECODE(LEVEL0))=SIGBLOCK)
STRING(X,X1,X3,X4,X7,X10) ;Build String of critical fields
+1 NEW RECORD,RECORD7,RECORD71,SIGBLOCK,CHECKSUM,OLDUSER
+2 QUIT $PIECE(X,"^",1)_"^"_$PIECE(X1,"^",1)_"^"_$PIECE(X3,"^",1)_"^"_$PIECE(X4,"^",1)_"^"_$PIECE(X7,"^",10)_"^"_$PIECE(X10,"^",1)
