credential/wincred: store password_expiry_utc

This attribute is important when storing OAuth credentials which may
expire after as little as one hour. d208bfdf (credential: new attribute
password_expiry_utc, 2023-02-18) added support for this attribute in
general so that individual credential backend like wincred can use it.

Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
M Hickford 2023-04-03 07:47:07 +00:00 committed by Junio C Hamano
parent 27d43aaaf5
commit 488d9d52be

View file

@ -91,7 +91,8 @@ static void load_cred_funcs(void)
die("failed to load functions");
}
static WCHAR *wusername, *password, *protocol, *host, *path, target[1024];
static WCHAR *wusername, *password, *protocol, *host, *path, target[1024],
*password_expiry_utc;
static void write_item(const char *what, LPCWSTR wbuf, int wlen)
{
@ -183,6 +184,7 @@ static void get_credential(void)
CREDENTIALW **creds;
DWORD num_creds;
int i;
CREDENTIAL_ATTRIBUTEW *attr;
if (!CredEnumerateW(L"git:*", 0, &num_creds, &creds))
return;
@ -195,6 +197,14 @@ static void get_credential(void)
write_item("password",
(LPCWSTR)creds[i]->CredentialBlob,
creds[i]->CredentialBlobSize / sizeof(WCHAR));
for (int j = 0; j < creds[i]->AttributeCount; j++) {
attr = creds[i]->Attributes + j;
if (!wcscmp(attr->Keyword, L"git_password_expiry_utc")) {
write_item("password_expiry_utc", (LPCWSTR)attr->Value,
attr->ValueSize / sizeof(WCHAR));
break;
}
}
break;
}
@ -204,6 +214,7 @@ static void get_credential(void)
static void store_credential(void)
{
CREDENTIALW cred;
CREDENTIAL_ATTRIBUTEW expiry_attr;
if (!wusername || !password)
return;
@ -217,6 +228,14 @@ static void store_credential(void)
cred.Persist = CRED_PERSIST_LOCAL_MACHINE;
cred.AttributeCount = 0;
cred.Attributes = NULL;
if (password_expiry_utc != NULL) {
expiry_attr.Keyword = L"git_password_expiry_utc";
expiry_attr.Value = (LPVOID)password_expiry_utc;
expiry_attr.ValueSize = (wcslen(password_expiry_utc)) * sizeof(WCHAR);
expiry_attr.Flags = 0;
cred.Attributes = &expiry_attr;
cred.AttributeCount = 1;
}
cred.TargetAlias = NULL;
cred.UserName = wusername;
@ -278,6 +297,8 @@ static void read_credential(void)
wusername = utf8_to_utf16_dup(v);
} else if (!strcmp(buf, "password"))
password = utf8_to_utf16_dup(v);
else if (!strcmp(buf, "password_expiry_utc"))
password_expiry_utc = utf8_to_utf16_dup(v);
/*
* Ignore other lines; we don't know what they mean, but
* this future-proofs us when later versions of git do
@ -292,7 +313,7 @@ int main(int argc, char *argv[])
"usage: git credential-wincred <get|store|erase>\n";
if (!argv[1])
die(usage);
die("%s", usage);
/* git use binary pipes to avoid CRLF-issues */
_setmode(_fileno(stdin), _O_BINARY);