git_credential** out,

const char* url,

const char* username_from_url,

unsigned int allowed_types,

void* payload

)

{

// Check for cached credentials here, if desired.

// It might be necessary to make this function stateful to avoid repeating unnecessary checks.

*out = nullptr;

if (allowed_types & GIT_CREDENTIAL_USERPASS_PLAINTEXT)

{

std::string username = username_from_url ? username_from_url : "";

if (username.empty())

{

username = trim(prompt_input("Username: "));

}

if (username.empty())

{

giterr_set_str(GIT_ERROR_HTTP, "No username specified");

return GIT_EAUTH;

}

std::string password = trim(prompt_input("Password: ", false));

if (password.empty())

{

giterr_set_str(GIT_ERROR_HTTP, "No password specified");

return GIT_EAUTH;

}

// If successful, this will create and return a git_credential* in the out argument.

return git_credential_userpass_plaintext_new(out, username.c_str(), password.c_str());

}

giterr_set_str(GIT_ERROR_HTTP, "Unexpected credentials request");

return GIT_ERROR;