From c03859a66525c6bdc5cd3c02b31f06cfdd80b595 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Carlo=20Marcelo=20Arenas=20Bel=C3=B3n?= Date: Sat, 2 May 2020 15:34:47 -0700 Subject: credential-store: ignore bogus lines from store file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With the added checks for invalid URLs in credentials, any locally modified store files which might have empty lines or even comments were reported[1] failing to parse as valid credentials. Instead of doing a hard check for credentials, do a soft one and therefore avoid the reported fatal error. While at it add tests for all known corruptions that are currently ignored to keep track of them and avoid the risk of regressions. [1] https://stackoverflow.com/a/61420852/5005936 Reported-by: Dirk Helped-by: Eric Sunshine Helped-by: Junio C Hamano Based-on-patch-by: Jonathan Nieder Signed-off-by: Carlo Marcelo Arenas Belón Signed-off-by: Junio C Hamano diff --git a/credential-store.c b/credential-store.c index ac29542..68c02fb 100644 --- a/credential-store.c +++ b/credential-store.c @@ -24,8 +24,8 @@ static int parse_credential_file(const char *fn, } while (strbuf_getline_lf(&line, fh) != EOF) { - credential_from_url(&entry, line.buf); - if (entry.username && entry.password && + if (!credential_from_url_gently(&entry, line.buf, 1) && + entry.username && entry.password && credential_match(c, &entry)) { found_credential = 1; if (match_cb) { diff --git a/t/t0302-credential-store.sh b/t/t0302-credential-store.sh index d6b54e8..716bf1a 100755 --- a/t/t0302-credential-store.sh +++ b/t/t0302-credential-store.sh @@ -107,7 +107,6 @@ test_expect_success 'store: if both xdg and home files exist, only store in home test_must_be_empty "$HOME/.config/git/credentials" ' - test_expect_success 'erase: erase matching credentials from both xdg and home files' ' echo "https://home-user:home-pass@example.com" >"$HOME/.git-credentials" && mkdir -p "$HOME/.config/git" && @@ -120,4 +119,94 @@ test_expect_success 'erase: erase matching credentials from both xdg and home fi test_must_be_empty "$HOME/.config/git/credentials" ' +invalid_credential_test() { + test_expect_success "get: ignore credentials without $1 as invalid" ' + echo "$2" >"$HOME/.git-credentials" && + check fill store <<-\EOF + protocol=https + host=example.com + -- + protocol=https + host=example.com + username=askpass-username + password=askpass-password + -- + askpass: Username for '\''https://example.com'\'': + askpass: Password for '\''https://askpass-username@example.com'\'': + -- + EOF + ' +} + +invalid_credential_test "scheme" ://user:pass@example.com +invalid_credential_test "valid host/path" https://user:pass@ +invalid_credential_test "username/password" https://pass@example.com + +test_expect_success 'get: credentials with DOS line endings are invalid' ' + printf "https://user:pass@example.com\r\n" >"$HOME/.git-credentials" && + check fill store <<-\EOF + protocol=https + host=example.com + -- + protocol=https + host=example.com + username=askpass-username + password=askpass-password + -- + askpass: Username for '\''https://example.com'\'': + askpass: Password for '\''https://askpass-username@example.com'\'': + -- + EOF +' + +test_expect_success 'get: credentials with path and DOS line endings are valid' ' + printf "https://user:pass@example.com/repo.git\r\n" >"$HOME/.git-credentials" && + check fill store <<-\EOF + url=https://example.com/repo.git + -- + protocol=https + host=example.com + username=user + password=pass + -- + EOF +' + +test_expect_success 'get: credentials with DOS line endings are invalid if path is relevant' ' + printf "https://user:pass@example.com/repo.git\r\n" >"$HOME/.git-credentials" && + test_config credential.useHttpPath true && + check fill store <<-\EOF + url=https://example.com/repo.git + -- + protocol=https + host=example.com + path=repo.git + username=askpass-username + password=askpass-password + -- + askpass: Username for '\''https://example.com/repo.git'\'': + askpass: Password for '\''https://askpass-username@example.com/repo.git'\'': + -- + EOF +' + +test_expect_success 'get: store file can contain empty/bogus lines' ' + echo "" >"$HOME/.git-credentials" && + q_to_tab <<-\CREDENTIAL >>"$HOME/.git-credentials" && + #comment + Q + https://user:pass@example.com + CREDENTIAL + check fill store <<-\EOF + protocol=https + host=example.com + -- + protocol=https + host=example.com + username=user + password=pass + -- + EOF +' + test_done -- cgit v0.10.2-6-g49f6