Ankur Mhatre
38c0a5f358
Three modules on Spring Boot 4.1.1 with Spring Authorization Server 7.1.1: the provider
itself, a relying party, and an API that trusts its tokens. Client registration, PKCE,
a custom consent page and token customisation, with profiles that make each failure
reproducible.
Every claim is backed by captured output in docs/output/as-*.txt, regenerated by
authorization-server/scripts/run-all.sh. Notable findings, verified against the jars:
- OAuth2AuthorizationServerConfiguration.applyDefaultSecurity(HttpSecurity) was deleted
in 7.0, and both configuration classes moved into spring-security-config
- ClientSettings.requireProofKey flipped from false to true, on the authorization server
(1.5.8 -> 7.1.1) and on the OAuth2 client (6.5.1 -> 7.1.1)
- requireProofKey(false) does not make PKCE optional for a public client; the code
verifier is that client's only authentication at the token endpoint
- MediaTypeRequestMatcher(TEXT_HTML) matches Accept: */*, so the token endpoint answers
API callers with 302 -> /login unless setIgnoredMediaTypes(ALL) is called
Also renames the repository to spring-auth-demo and cross-links the new chapter set from
the existing documentation.
33 lines
1.5 KiB
Bash
Executable File
33 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Why a confidential Spring OAuth2 client does not send PKCE, straight from the bytecode
|
|
# of DefaultOAuth2AuthorizationRequestResolver rather than from documentation.
|
|
set -u
|
|
cd "$(dirname "$0")/.."
|
|
OUT=../docs/output/as-pkce-applier.txt
|
|
mkdir -p ../docs/output
|
|
mvn -B -q -pl oidc-client dependency:build-classpath \
|
|
-Dmdep.outputFile=/tmp/cl-cp.txt -DincludeScope=compile >/dev/null 2>&1
|
|
JAR=$(tr ':' '\n' < /tmp/cl-cp.txt | grep 'spring-security-oauth2-client-' | head -1)
|
|
WORK=$(mktemp -d); trap 'rm -rf "$WORK"' EXIT
|
|
(cd "$WORK" && unzip -o -q "$JAR" 'org/springframework/security/oauth2/client/web/DefaultOAuth2AuthorizationRequestResolver*')
|
|
{
|
|
echo "# From $(basename "$JAR")"
|
|
echo "#"
|
|
echo "# The resolver applies its default PKCE customizer only when the registration's"
|
|
echo "# client authentication method is NONE - that is, only for public clients."
|
|
echo "# A registration that has a client secret gets no code_challenge."
|
|
echo
|
|
javap -p -c -cp "$WORK" \
|
|
org.springframework.security.oauth2.client.web.DefaultOAuth2AuthorizationRequestResolver \
|
|
2>/dev/null \
|
|
| grep -E 'ClientAuthenticationMethod.NONE|DEFAULT_PKCE_APPLIER|withPkce' \
|
|
| sed 's/^ *//' | head -8
|
|
echo
|
|
echo "# The fields and the opt-in setter:"
|
|
javap -p -cp "$WORK" \
|
|
org.springframework.security.oauth2.client.web.DefaultOAuth2AuthorizationRequestResolver \
|
|
2>/dev/null \
|
|
| grep -E 'DEFAULT_PKCE_APPLIER|setAuthorizationRequestCustomizer' | sed 's/^ *//'
|
|
} > "$OUT" 2>&1
|
|
cat "$OUT"
|