Add ldapsearch hack script

[#185658904]

hack/ldapsearch/README.md

@@ -0,0 +1,19 @@
+# ldapsearch.sh
+
+Translate your `LDAPIdentityProvider` into `ldapsearch` queries for debugging purposes.
+
+Usage
+
+```shell
+kubectl get ldapidentityprovider <name> \
+  --namespace=<namespace> \
+  --output=yaml | ./hack/ldapsearch/ldapsearch.sh
+```
+
+Add `--debug` for some additional output.
+
+```shell
+kubectl get ldapidentityprovider <name> \
+  --namespace=<namespace> \
+  --output=yaml | ./hack/ldapsearch/ldapsearch.sh --debug
+```

hack/ldapsearch/ldapsearch.sh

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+#!/usr/bin/env bash
+
+# Copyright 2023 the Pinniped contributors. All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+set -euo pipefail
+
+STDIN_DUMP=`mktemp`
+trap "rm $STDIN_DUMP" EXIT
+
+# Read from STDIN
+cat > $STDIN_DUMP
+
+LDAP_IDENTITY_PROVIDER_FILE=`mktemp`
+trap "rm $LDAP_IDENTITY_PROVIDER_FILE" EXIT
+
+yq 'select(document_index == 0)' $STDIN_DUMP > $LDAP_IDENTITY_PROVIDER_FILE
+
+LDAP_IDP_NAME=`yq '.metadata.name' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_IDP_NAMESPACE=`yq '.metadata.namespace' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_HOST=`yq '.spec.host' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_USER_SEARCH_BASE_DN=`yq '.spec.userSearch.base' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_USER_SEARCH_FILTER=`yq '.spec.userSearch.filter' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_CA_BUNDLE=`yq '.spec.tls.certificateAuthorityData | @base64d' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_BIND_SECRETNAME=`yq '.spec.bind.secretName' $LDAP_IDENTITY_PROVIDER_FILE`
+LDAP_BIND_DN=""
+LDAP_BIND_PASSWORD=""
+
+if [[ -n "${LDAP_BIND_SECRETNAME}" ]]; then
+  LDAP_BIND_SECRET_FILE=`mktemp`
+  trap "rm $LDAP_BIND_SECRET_FILE" EXIT
+
+  kubectl get secret "$LDAP_BIND_SECRETNAME" \
+    --namespace "$LDAP_IDP_NAMESPACE" \
+    --output yaml > $LDAP_BIND_SECRET_FILE
+
+  LDAP_BIND_DN=`yq '.data.username | @base64d' $LDAP_BIND_SECRET_FILE`
+  LDAP_BIND_PASSWORD=`yq '.data.password | @base64d' $LDAP_BIND_SECRET_FILE`
+fi
+
+if [[ "${1:-}" == "--debug" ]]; then
+  echo LDAP_IDP_NAME="$LDAP_IDP_NAME"
+  echo LDAP_IDP_NAMESPACE="$LDAP_IDP_NAMESPACE"
+  echo LDAP_HOST="$LDAP_HOST"
+  echo LDAP_USER_SEARCH_BASE_DN="$LDAP_USER_SEARCH_BASE_DN"
+  echo LDAP_USER_SEARCH_FILTER="$LDAP_USER_SEARCH_FILTER"
+  echo LDAP_CA_BUNDLE="$LDAP_CA_BUNDLE"
+  echo LDAP_BIND_SECRETNAME="$LDAP_BIND_SECRETNAME"
+  echo LDAP_BIND_DN="$LDAP_BIND_DN"
+  echo LDAP_BIND_PASSWORD="$LDAP_BIND_PASSWORD"
+fi
+
+output=()
+
+if [[ -n "${LDAP_CA_BUNDLE}" ]]; then
+  LDAP_CA_BUNDLE_FILE=ldaptls_cacert.pem
+  echo "$LDAP_CA_BUNDLE" > $LDAP_CA_BUNDLE_FILE
+
+  output+=("LDAPTLS_CACERT=$LDAP_CA_BUNDLE_FILE")
+fi
+
+output+=("ldapsearch" "-x")
+output+=("-H" "ldaps://$LDAP_HOST")
+
+if [[ -n "${LDAP_BIND_DN}" ]]; then
+  output+=("-D" "$LDAP_BIND_DN")
+fi
+
+if [[ -n "${LDAP_BIND_PASSWORD}" ]]; then
+  output+=("-w" "$LDAP_BIND_PASSWORD")
+fi
+
+output+=("-b" "$LDAP_USER_SEARCH_BASE_DN")
+output+=("-s" "sub")
+output+=("$LDAP_USER_SEARCH_FILTER")
+
+echo "${output[*]}"
+
+#LDAPTLS_CACERT=/path/to/ca-bundle.pem ldapsearch \
+#-x -H ldaps://LDAP_HOST -D LDAP_BIND_DN -w LDAP_BIND_PASSWORD \
+#-b LDAP_USER_SEARCH_BASE_DN \
+#-s sub (LDAP_USER_SEARCH_FILTER-with-placeholder-replaced-by-username)
+#