[PATCH v4] credential-cache: respect request capabilities

["M Hickford via GitGitGadget" <gitgitgadget@gmail.com>]

From: M Hickford <mirth.hickford@gmail.com>

Previously, credential-cache populated authtype regardless of request.

Signed-off-by: M Hickford <mirth.hickford@gmail.com>
---
    credential-cache: respect request capabilities
    
    CC: sandals@crustytoothpaste.net
    
    Patch v4 fixes test

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1842%2Fhickford%2Fcache-capability-v4
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1842/hickford/cache-capability-v4
Pull-Request: https://github.com/gitgitgadget/git/pull/1842

Range-diff vs v3:

 1:  e9851c5c4ac ! 1:  23942f9fa47 credential-cache: respect request capabilities
     @@ t/lib-credential.sh: helper_test_authtype() {
      +		protocol=https
      +		host=git.example.com
      +		--
     -+		capability[]=authtype
      +		protocol=https
      +		host=git.example.com
      +		username=askpass-username


 builtin/credential-cache--daemon.c |  4 ++--
 t/lib-credential.sh                | 15 +++++++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/builtin/credential-cache--daemon.c b/builtin/credential-cache--daemon.c
index bc22f5c6d24..e707618e743 100644
--- a/builtin/credential-cache--daemon.c
+++ b/builtin/credential-cache--daemon.c
@@ -142,9 +142,9 @@ static void serve_one_client(FILE *in, FILE *out)
 				fprintf(out, "username=%s\n", e->item.username);
 			if (e->item.password)
 				fprintf(out, "password=%s\n", e->item.password);
-			if (credential_has_capability(&c.capa_authtype, CREDENTIAL_OP_HELPER) && e->item.authtype)
+			if (credential_has_capability(&c.capa_authtype, CREDENTIAL_OP_RESPONSE) && e->item.authtype)
 				fprintf(out, "authtype=%s\n", e->item.authtype);
-			if (credential_has_capability(&c.capa_authtype, CREDENTIAL_OP_HELPER) && e->item.credential)
+			if (credential_has_capability(&c.capa_authtype, CREDENTIAL_OP_RESPONSE) && e->item.credential)
 				fprintf(out, "credential=%s\n", e->item.credential);
 			if (e->item.password_expiry_utc != TIME_MAX)
 				fprintf(out, "password_expiry_utc=%"PRItime"\n",
diff --git a/t/lib-credential.sh b/t/lib-credential.sh
index 58b9c740605..cc6bf9aa5f3 100644
--- a/t/lib-credential.sh
+++ b/t/lib-credential.sh
@@ -566,6 +566,21 @@ helper_test_authtype() {
 		EOF
 	'
 
+	test_expect_success "helper ($HELPER) gets authtype and credential only if request has authtype capability" '
+		check fill $HELPER <<-\EOF
+		protocol=https
+		host=git.example.com
+		--
+		protocol=https
+		host=git.example.com
+		username=askpass-username
+		password=askpass-password
+		--
+		askpass: Username for '\''https://git.example.com'\'':
+		askpass: Password for '\''https://askpass-username@git.example.com'\'':
+		EOF
+	'
+
 	test_expect_success "helper ($HELPER) stores authtype and credential with username" '
 		check approve $HELPER <<-\EOF
 		capability[]=authtype

base-commit: 92999a42db1c5f43f330e4f2bca4026b5b81576f
-- 
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