diff options
author | Matt Holt <mholt@users.noreply.github.com> | 2019-08-21 11:28:03 -0600 |
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committer | GitHub <noreply@github.com> | 2019-08-21 11:28:03 -0600 |
commit | 0544f0266a11874efb305a46db762248e64bc62d (patch) | |
tree | 3e75e6f59047bb967c52915e1e75aee6ad67c0ea /caddyconfig/caddyfile/adapter.go | |
parent | 42f75a4ca94ef3fb5e15a74e5dc9ef8b4f1f0b39 (diff) | |
parent | b2aa679c33f63ebec5bc1a21bca01f345dffebdd (diff) |
Merge pull request #2699 from caddyserver/cfadapter
v2: Implement config adapters and WIP Caddyfile adapter
Diffstat (limited to 'caddyconfig/caddyfile/adapter.go')
-rw-r--r-- | caddyconfig/caddyfile/adapter.go | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/caddyconfig/caddyfile/adapter.go b/caddyconfig/caddyfile/adapter.go new file mode 100644 index 0000000..377f77b --- /dev/null +++ b/caddyconfig/caddyfile/adapter.go @@ -0,0 +1,87 @@ +// Copyright 2015 Matthew Holt and The Caddy Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package caddyfile + +import ( + "bytes" + "encoding/json" + "fmt" + + "github.com/caddyserver/caddy/v2" + "github.com/caddyserver/caddy/v2/caddyconfig" +) + +// Adapter adapts Caddyfile to Caddy JSON. +type Adapter struct { + ServerType ServerType +} + +// Adapt converts the Caddyfile config in body to Caddy JSON. +func (a Adapter) Adapt(body []byte, options map[string]string) ([]byte, []caddyconfig.Warning, error) { + if a.ServerType == nil { + return nil, nil, fmt.Errorf("no server type") + } + if options == nil { + options = make(map[string]string) + } + + filename := options["filename"] + if filename == "" { + filename = "Caddyfile" + } + + serverBlocks, err := Parse(filename, bytes.NewReader(body)) + if err != nil { + return nil, nil, err + } + + cfg, warnings, err := a.ServerType.Setup(serverBlocks, options) + if err != nil { + return nil, warnings, err + } + + marshalFunc := json.Marshal + if options["pretty"] == "true" { + marshalFunc = caddyconfig.JSONIndent + } + result, err := marshalFunc(cfg) + + return result, warnings, err +} + +// Unmarshaler is a type that can unmarshal +// Caddyfile tokens to set itself up for a +// JSON encoding. The goal of an unmarshaler +// is not to set itself up for actual use, +// but to set itself up for being marshaled +// into JSON. Caddyfile-unmarshaled values +// will not be used directly; they will be +// encoded as JSON and then used from that. +type Unmarshaler interface { + UnmarshalCaddyfile(d *Dispenser) error +} + +// ServerType is a type that can evaluate a Caddyfile and set up a caddy config. +type ServerType interface { + // Setup takes the server blocks which + // contain tokens, as well as options + // (e.g. CLI flags) and creates a Caddy + // config, along with any warnings or + // an error. + Setup([]ServerBlock, map[string]string) (*caddy.Config, []caddyconfig.Warning, error) +} + +// Interface guard +var _ caddyconfig.Adapter = (*Adapter)(nil) |