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Annotation of freem/mlib/%NETHTTP.m, revision 1.1.1.1

1.1       snw         1: %NET.HTTP ;VCL/JPW-FREEM HTTP SYSTEM LIBRARY; 10/23/2020 6:55 PM
                      2:     ;0.0;FreeM;****FREEM**;John P Willis @2020
                      3:     ;
                      4:     ;                            *
                      5:     ;                           * *
                      6:     ;                          *   *
                      7:     ;                     ***************
                      8:     ;                      * *       * *
                      9:     ;                       *  MUMPS  *
                     10:     ;                      * *       * *
                     11:     ;                     ***************
                     12:     ;                          *   *
                     13:     ;                           * *
                     14:     ;                            *
                     15:     ;
                     16:     ;   %HTTP.m
                     17:     ;    FreeM HTTP system library
                     18:     ;
                     19:     ;  
                     20:     ;   Author: John P. Willis <jpw@coherent-logic.com>
                     21:     ;    Copyright (C) 1998 MUG Deutschland
                     22:     ;    Copyright (C) 2020 Coherent Logic Development LLC
                     23:     ;
                     24:     ;
                     25:     ;   This file is part of FreeM.
                     26:     ;
                     27:     ;   FreeM is free software: you can redistribute it and/or modify
                     28:     ;   it under the terms of the GNU Affero Public License as published by
                     29:     ;   the Free Software Foundation, either version 3 of the License, or
                     30:     ;   (at your option) any later version.
                     31:     ;
                     32:     ;   FreeM is distributed in the hope that it will be useful,
                     33:     ;   but WITHOUT ANY WARRANTY; without even the implied warranty of
                     34:     ;   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     35:     ;   GNU Affero Public License for more details.
                     36:     ;
                     37:     ;   You should have received a copy of the GNU Affero Public License
                     38:     ;   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
                     39:     ;
                     40:     ;
                     41:        QUIT
                     42:        ;
                     43:        ;
                     44: GET(URL) ; HTTP GET
                     45:        ;
                     46:        ; SET UP ERROR TRAP
                     47:        ;
                     48:        N OET S OET=$ZTRAP S $ZTRAP="GETERR^%HTTP"
                     49:        ; INIT TERMINATION SEQUENCE
                     50:        N CH,%,LN S CH=255,^$DEVICE(CH,"TERMINATOR")=$C(13,10),LN=0
                     51:        ; PARSE URL
                     52:        N PROTO S PROTO=$P(URL,":",1)
                     53:        N SRV,HOST,PRT S SRV=$P(URL,"/",3) I $L(SRV,":") S PRT=$P(SRV,":",2),HOST=$P(SRV,":",1) E  S HOST=SRV,PRT=80
                     54:        N PTH I $L(URL,"/")>3 S PTH=$P(URL,"/",4) E  S PTH="/"
                     55:        I PROTO'="http" K % W "Protocol "_PROTO_" not supported.",! G GETERR
                     56:        ; OPEN CONNECTION TO SERVER
                     57:        O CH:HOST_":"_PRT_":IPV4:TCP"
                     58:        U CH:/CONNECT
                     59:        ; SEND GET COMMAND
                     60:        W "GET "_PTH_" HTTP/1.1",!,"Host: "_HOST,!,!
                     61:        ;
                     62:        ;
                     63: GETERR U $P C CH K % S $ZTRAP=OET Q 0