93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
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/*
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* Seashell - SSH server with virtual hosts and username-based routing
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*
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* Copyright (C) 2024 Elara6331 <elara@elara.ws>
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*
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* This file is part of Seashell.
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*
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* Seashell is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* Seashell is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Seashell. If not, see <http://www.gnu.org/licenses/>.
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*/
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package backends
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import (
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"github.com/zclconf/go-cty/cty"
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"go.elara.ws/seashell/internal/config"
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"go.elara.ws/seashell/internal/router"
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)
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// Backend represents a seashell backend
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type Backend func(config.Route) router.Handler
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// backends contains all the available backends
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var backends = map[string]Backend{
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"proxy": Proxy,
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"nomad": Nomad,
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"docker": Docker,
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"serial": Serial,
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}
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// Get returns a backend given its name
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func Get(name string) Backend {
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return backends[name]
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}
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// ctyTupleToStrings converts a cty tuple type to a slice of strings
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func ctyTupleToStrings(t *cty.Value) []string {
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if t == nil {
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return nil
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}
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i := 0
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out := make([]string, t.LengthInt())
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iter := t.ElementIterator()
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for iter.Next() {
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_, val := iter.Element()
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if val.Type() == cty.String {
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out[i] = val.AsString()
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} else {
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out[i] = val.GoString()
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}
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i++
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}
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return out
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}
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// ctyObjToStringMap convertys a cty object type to a map from strings to strings
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func ctyObjToStringMap(o *cty.Value) map[string]string {
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if o == nil {
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return map[string]string{}
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}
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out := make(map[string]string, o.LengthInt())
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iter := o.ElementIterator()
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for iter.Next() {
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key, val := iter.Element()
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if key.Type() != cty.String || val.Type() != cty.String {
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continue
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}
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out[key.AsString()] = val.AsString()
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}
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return out
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}
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// valueOr returns the value that v points to
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// or a default value if v is nil.
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func valueOr[T any](v *T, or T) T {
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if v == nil {
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return or
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}
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return *v
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}
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