mirror of https://github.com/vernonkeenan/lib
68 lines
2.0 KiB
Go
68 lines
2.0 KiB
Go
// (c) 2012-2020 by Taxnexus, Inc.
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// All rights reserved worldwide.
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// Proprietary product; unlicensed use is not allowed
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package members_client
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import (
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"errors"
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"fmt"
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"github.com/go-openapi/runtime"
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"github.com/go-openapi/strfmt"
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)
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const maxCredentialLength = 8192
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// NewMembersCompoundAuth returns the auth writer required by governed Members
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// operations: a service API key plus the active human kvSession cookie.
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//
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// Credential values are retained only inside the returned closure. Validation
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// errors identify the invalid field without including its value.
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func NewMembersCompoundAuth(apiKey, sessionToken string) (runtime.ClientAuthInfoWriter, error) {
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if err := validateHeaderCredential("Members API key", apiKey); err != nil {
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return nil, err
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}
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if err := validateCookieCredential("Members session token", sessionToken); err != nil {
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return nil, err
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}
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return runtime.ClientAuthInfoWriterFunc(func(request runtime.ClientRequest, _ strfmt.Registry) error {
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if err := request.SetHeaderParam("X-API-Key", apiKey); err != nil {
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return fmt.Errorf("set Members API key header: %w", err)
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}
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if err := request.SetHeaderParam("Cookie", "kvSession="+sessionToken); err != nil {
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return fmt.Errorf("set Members session cookie: %w", err)
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}
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return nil
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}), nil
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}
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func validateHeaderCredential(name, value string) error {
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if value == "" {
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return fmt.Errorf("%s is required", name)
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}
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if len(value) > maxCredentialLength {
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return fmt.Errorf("%s exceeds the maximum length", name)
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}
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for index := 0; index < len(value); index++ {
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if value[index] < 0x21 || value[index] > 0x7e {
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return fmt.Errorf("%s contains an invalid header byte", name)
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}
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}
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return nil
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}
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func validateCookieCredential(name, value string) error {
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if err := validateHeaderCredential(name, value); err != nil {
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return err
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}
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for index := 0; index < len(value); index++ {
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character := value[index]
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if character == '"' || character == ',' || character == ';' || character == '\\' {
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return errors.New(name + " contains an invalid cookie byte")
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}
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}
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return nil
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}
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