mirror of https://github.com/go-gitea/gitea.git
56 lines
1.9 KiB
Go
56 lines
1.9 KiB
Go
package openid
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import (
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"net/url"
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"strings"
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)
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func RedirectURL(id, callbackURL, realm string) (string, error) {
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return defaultInstance.RedirectURL(id, callbackURL, realm)
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}
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func (oid *OpenID) RedirectURL(id, callbackURL, realm string) (string, error) {
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opEndpoint, opLocalID, claimedID, err := oid.Discover(id)
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if err != nil {
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return "", err
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}
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return BuildRedirectURL(opEndpoint, opLocalID, claimedID, callbackURL, realm)
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}
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func BuildRedirectURL(opEndpoint, opLocalID, claimedID, returnTo, realm string) (string, error) {
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values := make(url.Values)
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values.Add("openid.ns", "http://specs.openid.net/auth/2.0")
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values.Add("openid.mode", "checkid_setup")
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values.Add("openid.return_to", returnTo)
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// 9.1. Request Parameters
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// "openid.claimed_id" and "openid.identity" SHALL be either both present or both absent.
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if len(claimedID) > 0 {
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values.Add("openid.claimed_id", claimedID)
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if len(opLocalID) > 0 {
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values.Add("openid.identity", opLocalID)
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} else {
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// If a different OP-Local Identifier is not specified,
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// the claimed identifier MUST be used as the value for openid.identity.
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values.Add("openid.identity", claimedID)
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}
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} else {
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// 7.3.1. Discovered Information
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// If the end user entered an OP Identifier, there is no Claimed Identifier.
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// For the purposes of making OpenID Authentication requests, the value
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// "http://specs.openid.net/auth/2.0/identifier_select" MUST be used as both the
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// Claimed Identifier and the OP-Local Identifier when an OP Identifier is entered.
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values.Add("openid.claimed_id", "http://specs.openid.net/auth/2.0/identifier_select")
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values.Add("openid.identity", "http://specs.openid.net/auth/2.0/identifier_select")
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}
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if len(realm) > 0 {
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values.Add("openid.realm", realm)
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}
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if strings.Contains(opEndpoint, "?") {
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return opEndpoint + "&" + values.Encode(), nil
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}
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return opEndpoint + "?" + values.Encode(), nil
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}
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