exchange

Base system with REST service to issue digital coins, run by the payment service provider
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taler-exchange-kyc-persona-converter.sh (2355B)


      1 #!/bin/bash
      2 # This file is in the public domain.
      3 #
      4 # This code converts (some of) the JSON output from Persona into the GNU Taler
      5 # specific KYC attribute data (again in JSON format).  We may need to download
      6 # and inline file data in the process, for authorization pass "-a" with the
      7 # respective bearer token.
      8 #
      9 
     10 # Die if anything goes wrong.
     11 set -eu
     12 
     13 # Parse command-line options
     14 while getopts ':a:' OPTION; do
     15     case "$OPTION" in
     16         a)
     17             TOKEN="$OPTARG"
     18             ;;
     19         ?)
     20         echo "Unrecognized command line option"
     21         exit 1
     22         ;;
     23     esac
     24 done
     25 
     26 
     27 # First, extract everything from stdin.
     28 J=$(jq '{"first":.data.attributes."name-first","middle":.data.attributes."name-middle","last":.data.attributes."name-last","cc":.data.attributes.fields."address-country-code".value,"birthdate":.data.attributes.birthdate,"city":.data.attributes."address-city","postcode":.data.attributes."address-postal-code","street-1":.data.attributes."address-street-1","street-2":.data.attributes."address-street-2","address-subdivision":.data.attributes."address-subdivision","identification-number":.data.attributes."identification-number","photo":.included[]|select(.type=="verification/government-id")|.attributes|select(.status=="passed")|."front-photo-url"}')
     29 
     30 
     31 # Next, combine some fields into larger values.
     32 FULLNAME=$(echo "$J" | jq -r '[.first,.middle,.last]|join(" ")')
     33 STREET=$(echo "$J" | jq -r '[."street-1",."street-2"]|join(" ")')
     34 CITY=$(echo "$J" | jq -r '[.postcode,.city,."address-subdivision,.cc"]|join(" ")')
     35 
     36 # Download and base32-encode the photo
     37 PHOTO_URL=$(echo "$J" | jq -r '.photo')
     38 PHOTO_FILE=$(mktemp -t tmp.XXXXXXXXXX)
     39 if [ -z "${TOKEN:-}" ]
     40 then
     41     wget -q --output-document=- "$PHOTO_URL" | gnunet-base32 > "${PHOTO_FILE}"
     42 else
     43     wget -q --output-document=- --header "Authorization: Bearer $TOKEN" "$PHOTO_URL" | gnunet-base32  > "${PHOTO_FILE}"
     44 fi
     45 
     46 # Combine into final result.
     47 echo "$J" \
     48     | jq \
     49           --arg full_name "${FULLNAME}" \
     50           --arg street "${STREET}" \
     51           --arg city "${CITY}" \
     52           --rawfile photo "${PHOTO_FILE}" \
     53           '{"FORM_ID":"persona-individual",FULL_NAME: $full_name, $street, $city, DATE_OF_BIRTH: .birthdate, "residences":.cc, "identification_number": ."identification-number", $photo}' \
     54     | jq \
     55           'del(..|select(.==null))'
     56 
     57 exit 0