76 lines
3.3 KiB
Go
76 lines
3.3 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@probo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package provider
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import (
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"context"
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"fmt"
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"net/http"
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"go.gearno.de/kit/log"
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"go.probo.inc/probo/pkg/accessreview/drivers"
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"go.probo.inc/probo/pkg/connector"
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"go.probo.inc/probo/pkg/coredata"
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)
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func zendeskRegistration() *Registration {
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// Zendesk is multi-tenant via per-customer subdomain
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// (<subdomain>.zendesk.com). The subdomain is collected at initiate (the
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// customer types it; it drives the authorize host) and rides the signed
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// OAuth state to the callback, where it builds the token host and is
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// persisted on the connector settings for the driver's API host. Unlike
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// Datadog, Zendesk does NOT echo a host back on the callback, so
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// BuildTokenURLForSite reads the subdomain from the state rather than a
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// query param. AuthURL, TokenURL, and ProbeURL are therefore empty: the
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// closures build the per-customer hosts, and a static probe URL is
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// impossible for a per-subdomain host (an empty probe is skipped; a dead
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// token surfaces on the first ListAccounts). The global confidential
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// client carries a client_secret, which both authenticates the token
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// exchange (default post-form) and signs the state.
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return &Registration{
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Provider: coredata.ConnectorProviderZendesk,
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DisplayName: "Zendesk",
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OAuth2Scopes: []string{"users:read"},
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BuildAuthURLForSite: connector.ZendeskAuthorizeURL,
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BuildTokenURLForSite: connector.ZendeskTokenURL,
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NewDriver: func(_ context.Context, c *http.Client, conn *coredata.Connector, _ *log.Logger) (drivers.Driver, error) {
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s, err := coredata.ConnectorSettings[coredata.ZendeskConnectorSettings](conn)
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if err != nil {
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return nil, fmt.Errorf("cannot read zendesk connector settings: %w", err)
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}
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// Re-validate the stored subdomain at the construction site
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// (defense-in-depth). The OAuth callback validates on write, but
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// pinning the SSRF invariant here keeps the driver safe regardless
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// of how the connector row was populated. An empty subdomain also
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// fails this check.
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if !connector.IsValidZendeskSubdomain(s.Subdomain) {
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return nil, fmt.Errorf("cannot create zendesk driver: invalid or missing subdomain")
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}
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return drivers.NewZendeskDriver(c, s.Subdomain), nil
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},
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NewNameResolver: func(ctx context.Context, _ *http.Client, conn *coredata.Connector, logger *log.Logger) drivers.NameResolver {
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s, err := coredata.ConnectorSettings[coredata.ZendeskConnectorSettings](conn)
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if err != nil {
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logger.ErrorCtx(ctx, "cannot read zendesk connector settings", log.Error(err))
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return nil
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}
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return drivers.NewZendeskNameResolver(s.Subdomain)
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},
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}
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}
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