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109 lines
2.7 KiB
109 lines
2.7 KiB
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package saml
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import (
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"context"
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"fmt"
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"html"
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"html/template"
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"io"
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"net/http"
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"sort"
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"time"
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"code.gitea.io/gitea/models/auth"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/httplib"
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"code.gitea.io/gitea/modules/svg"
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"code.gitea.io/gitea/modules/util"
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)
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// Providers is list of known/available providers.
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type Providers map[string]Source
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var providers = Providers{}
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// Provider is an interface for describing a single SAML provider
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type Provider interface {
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Name() string
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IconHTML(size int) template.HTML
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}
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// AuthSourceProvider is a SAML provider
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type AuthSourceProvider struct {
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sourceName, iconURL string
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}
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func (p *AuthSourceProvider) Name() string {
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return p.sourceName
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}
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func (p *AuthSourceProvider) IconHTML(size int) template.HTML {
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if p.iconURL != "" {
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return template.HTML(fmt.Sprintf(`<img class="gt-object-contain gt-mr-3" width="%d" height="%d" src="%s" alt="%s">`,
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size,
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size,
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html.EscapeString(p.iconURL), html.EscapeString(p.Name()),
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))
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}
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return svg.RenderHTML("gitea-lock-cog", size, "gt-mr-3")
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}
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func readIdentityProviderMetadata(ctx context.Context, source *Source) ([]byte, error) {
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if source.IdentityProviderMetadata != "" {
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return []byte(source.IdentityProviderMetadata), nil
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}
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req := httplib.NewRequest(source.IdentityProviderMetadataURL, "GET")
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req.SetTimeout(20*time.Second, time.Minute)
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resp, err := req.Response()
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if err != nil {
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return nil, fmt.Errorf("Unable to contact gitea: %v", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return nil, err
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}
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data, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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return data, nil
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}
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func createProviderFromSource(source *auth.Source) (Provider, error) {
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samlCfg, ok := source.Cfg.(*Source)
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if !ok {
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return nil, fmt.Errorf("invalid SAML source config: %v", samlCfg)
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}
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return &AuthSourceProvider{sourceName: source.Name, iconURL: samlCfg.IconURL}, nil
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}
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// GetSAMLProviders returns the list of configured SAML providers
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func GetSAMLProviders(ctx context.Context, isActive util.OptionalBool) ([]Provider, error) {
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authSources, err := db.Find[auth.Source](ctx, auth.FindSourcesOptions{
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IsActive: isActive,
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LoginType: auth.SAML,
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})
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if err != nil {
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return nil, err
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}
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samlProviders := make([]Provider, 0, len(authSources))
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for _, source := range authSources {
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p, err := createProviderFromSource(source)
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if err != nil {
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return nil, err
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}
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samlProviders = append(samlProviders, p)
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}
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sort.Slice(samlProviders, func(i, j int) bool {
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return samlProviders[i].Name() < samlProviders[j].Name()
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})
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return samlProviders, nil
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}
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