mirror of
https://github.com/oauth2-proxy/oauth2-proxy.git
synced 2024-11-28 09:08:44 +02:00
113 lines
3.7 KiB
Go
113 lines
3.7 KiB
Go
package validation
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import (
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"fmt"
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"net/url"
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"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/options"
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)
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func validateUpstreams(upstreams options.UpstreamConfig) []string {
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msgs := []string{}
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ids := make(map[string]struct{})
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paths := make(map[string]struct{})
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for _, upstream := range upstreams.Upstreams {
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msgs = append(msgs, validateUpstream(upstream, ids, paths)...)
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}
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return msgs
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}
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// validateUpstream validates that the upstream has valid options and that
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// the ids and paths are unique across all options
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func validateUpstream(upstream options.Upstream, ids, paths map[string]struct{}) []string {
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msgs := []string{}
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if upstream.ID == "" {
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msgs = append(msgs, "upstream has empty id: ids are required for all upstreams")
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}
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if upstream.Path == "" {
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msgs = append(msgs, fmt.Sprintf("upstream %q has empty path: paths are required for all upstreams", upstream.ID))
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}
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// Ensure upstream IDs are unique
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if _, ok := ids[upstream.ID]; ok {
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msgs = append(msgs, fmt.Sprintf("multiple upstreams found with id %q: upstream ids must be unique", upstream.ID))
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}
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ids[upstream.ID] = struct{}{}
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// Ensure upstream Paths are unique
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if _, ok := paths[upstream.Path]; ok {
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msgs = append(msgs, fmt.Sprintf("multiple upstreams found with path %q: upstream paths must be unique", upstream.Path))
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}
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paths[upstream.Path] = struct{}{}
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msgs = append(msgs, validateUpstreamURI(upstream)...)
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msgs = append(msgs, validateStaticUpstream(upstream)...)
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return msgs
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}
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// validateStaticUpstream checks that the StaticCode is only set when Static
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// is set, and that any options that do not make sense for a static upstream
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// are not set.
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func validateStaticUpstream(upstream options.Upstream) []string {
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msgs := []string{}
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if !upstream.Static && upstream.StaticCode != nil {
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msgs = append(msgs, fmt.Sprintf("upstream %q has staticCode (%d), but is not a static upstream, set 'static' for a static response", upstream.ID, *upstream.StaticCode))
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}
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// Checks after this only make sense when the upstream is static
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if !upstream.Static {
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return msgs
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}
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if upstream.URI != "" {
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msgs = append(msgs, fmt.Sprintf("upstream %q has uri, but is a static upstream, this will have no effect.", upstream.ID))
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}
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if upstream.InsecureSkipTLSVerify {
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msgs = append(msgs, fmt.Sprintf("upstream %q has insecureSkipTLSVerify, but is a static upstream, this will have no effect.", upstream.ID))
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}
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if upstream.FlushInterval != nil && upstream.FlushInterval.Duration() != options.DefaultUpstreamFlushInterval {
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msgs = append(msgs, fmt.Sprintf("upstream %q has flushInterval, but is a static upstream, this will have no effect.", upstream.ID))
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}
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if upstream.PassHostHeader != nil {
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msgs = append(msgs, fmt.Sprintf("upstream %q has passHostHeader, but is a static upstream, this will have no effect.", upstream.ID))
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}
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if upstream.ProxyWebSockets != nil {
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msgs = append(msgs, fmt.Sprintf("upstream %q has proxyWebSockets, but is a static upstream, this will have no effect.", upstream.ID))
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}
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return msgs
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}
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func validateUpstreamURI(upstream options.Upstream) []string {
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msgs := []string{}
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if !upstream.Static && upstream.URI == "" {
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msgs = append(msgs, fmt.Sprintf("upstream %q has empty uri: uris are required for all non-static upstreams", upstream.ID))
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return msgs
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}
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// Checks after this only make sense the upstream is not static
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if upstream.Static {
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return msgs
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}
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u, err := url.Parse(upstream.URI)
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if err != nil {
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msgs = append(msgs, fmt.Sprintf("upstream %q has invalid uri: %v", upstream.ID, err))
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return msgs
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}
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switch u.Scheme {
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case "http", "https", "file":
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// Valid, do nothing
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default:
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msgs = append(msgs, fmt.Sprintf("upstream %q has invalid scheme: %q", upstream.ID, u.Scheme))
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}
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return msgs
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}
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