From 98dbcfae108e403019b2f60923266bcb8f78235d Mon Sep 17 00:00:00 2001
From: Sam <samuel.house@ntlworld.com>
Date: Fri, 15 Mar 2019 16:59:33 +0000
Subject: [PATCH] can now supply API_KEY, HTTP_USERNAME and HTTP_PASSWORD

---
 walk-rpde.sh | 54 +++++++++++++++++++---------------------------------
 1 file changed, 20 insertions(+), 34 deletions(-)

diff --git a/walk-rpde.sh b/walk-rpde.sh
index 6e42786..c41f4a2 100755
--- a/walk-rpde.sh
+++ b/walk-rpde.sh
@@ -1,47 +1,33 @@
-#!/usr/bin/env bash
-
-set -o errexit
-set -o nounset
-set -o pipefail
-# Uncomment the following line in order to debug
-# set -o xtrace
+#!/usr/bin/env sh
 
 # required commands: awk, curl, jq, tee
 
-if [ "$#" -lt "1" -o "$#" -gt "2" ]
+if [ "$#" -ne "1" ]
 then
-  printf 'Usage: %s <rpde-endpoint> [-s]\n' "$0"
-  printf '\n'
-  printf ' -s  Squashes all pages into a single page, "rpde.json"\n'
+  printf 'Usage: %s <rpde-endpoint>\n' "$0"
   exit 1
 fi
 
-single_file=$2
 max=100
 page=1
 base=$(printf '%s' "$1" | awk -F/ '{print $1 "//" $3}')
-
-last_next_url=
-next_url="$1"
-num_items=-1
-
-# Stop paging if the "next" url is the same as in the last page. This is the end of the feed as defined by RPDE
-while [ "${next_url}" != "${last_next_url}" ]
+# $1 = next url
+# $2 = num items
+set -- $1 -1
+while [ "$2" -ne "0" ]
 do
-  page_padded=$(printf '%0*d\n' ${#max} ${page})
-  last_next_url="${next_url}"
-  # Results of $() statement are stored in next_url & num_items
-  read -r next_url num_items <<< $(curl -L -sS "${next_url}" | jq '.' | tee "rpde-${page_padded}.json" | jq -r '.next, (.items | length)')
-  printf 'got page: %s, with next url: %s, num items: %s\n' "${page}" "${next_url}" "${num_items}"
-  # If "next" URL isn't an absolute URL, like /rpde?afterTimestamp=123&afterId=abc, prepend the base URL to it to create an absolute URL
-  case ${next_url} in /*)
-    next_url="${base}${next_url}"
-  esac
+  page_padded=$(printf '%0*d\n' ${#max} $page)
+  if [[ $HTTP_USERNAME && $HTTP_PASSWORD ]]; then
+    set -- $(curl -L -sS -u $HTTP_USERNAME:$HTTP_PASSWORD "$1" | jq '.' | tee rpde-$page_padded.json | jq -r '.next, (.items | length)')
+  elif [[ -z $API_KEY ]]; then
+    set -- $(curl -L -sS "$1" | jq '.' | tee rpde-$page_padded.json | jq -r '.next, (.items | length)')
+  else
+    set -- $(curl -L -sS -H "X-API-KEY:$API_KEY" "$1" | jq '.' | tee rpde-$page_padded.json | jq -r '.view.next, (."imin:item" | length)')
+  fi
+  printf 'got page with next url: %s, num items: %s\n' "$1" $2
+  if [ "${1%${1/?}}"x = '/x' ]
+  then
+    set -- $base$1 $2
+  fi
   page=$((page=page+1))
 done
-
-if [ "${single_file}" != "" ]
-then
-  jq -s '[.[].items[]]' rpde-*.json > rpde.json
-  rm -rf rpde-*.json
-fi