// GetBeginAuthURLWithBase returns the OAuth2 authorization URL from the given arguments.
//
// The state object will be encoded to base64 and signed to ensure integrity.
func GetBeginAuthURLWithBase(base string, state *common.State, config *common.Config) (string, error) {
if config == nil {
panic("OAuth2Handler: Must have valid Config specified.")
}
// copy the config
params := objx.MSI(
OAuth2KeyClientID, config.Get(OAuth2KeyClientID).Str(),
OAuth2KeyRedirectUrl, config.Get(OAuth2KeyRedirectUrl).Str(),
OAuth2KeyScope, config.Get(OAuth2KeyScope).Str(),
OAuth2KeyAccessType, config.Get(OAuth2KeyAccessType).Str(),
OAuth2KeyApprovalPrompt, config.Get(OAuth2KeyApprovalPrompt).Str(),
OAuth2KeyResponseType, config.Get(OAuth2KeyResponseType).Str())
// set the state
stateValue, stateErr := state.SignedBase64(common.GetSecurityKey())
if stateErr != nil {
return "", stateErr
}
params.Set("state", stateValue)
// generate the query part
query, queryErr := params.URLQuery()
if queryErr != nil {
return "", queryErr
}
// put the strings together
return base + "?" + query, nil
}
// GetSecurityKey gets the security key.
func GetSecurityKey() string {
return common.GetSecurityKey()
}