~chrisppy/beagles

beagles/config/browser.go -rw-r--r-- 2.5 KiB
8e6595ccChris Palmer update to go-gemini 0.2.0 6 months ago
                                                                                
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// This file is part of beagles.
//
// Copyright © 2020-2021 Chris Palmer <chris@red-oxide.org>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

package config

import (
	"fmt"

	"git.sr.ht/~emersion/go-scfg"
)

// Browser config
type Browser struct {
	HTTP   *Command
	Gemini *Command
}

func parseBrowser(cfg *Config, dir *scfg.Directive) map[error]bool {
	errors := make(map[error]bool)
	cfg.Browser = &Browser{}
	if len(dir.Params) < 1 {
		errors[fmt.Errorf("protocol http or gemini is required for browser")] = false
		return errors
	}

	var isGemini, isHTTP bool
	switch dir.Params[0] {
	case "gemini":
		isGemini = true
	case "http":
		isHTTP = true
	default:
		errors[fmt.Errorf("unknown protocol provided for browser")] = false
		return errors
	}

	var foundNav bool
	for _, d := range dir.Children {
		switch n := d.Name; n {
		case "navigate":
			foundNav = true
			if err := validateDirective(n, d, multiple); err != nil {
				errors[err] = false
				continue
			}

			if len(d.Params) < 2 {
				errors[fmt.Errorf("at least 2 elements are required for navigate browser")] = false
				continue
			}

			var found bool
			var bin string
			args := make([]string, len(d.Params)-1)
			for i, a := range d.Params {
				if i == 0 {
					bin = a
					continue
				}

				args[i-1] = a
				if a == "[URL]" {
					found = true
				}
			}

			cmd := &Command{
				Bin:  bin,
				Args: args,
			}

			if isHTTP {
				if !found {
					errors[fmt.Errorf(`[URL] must be one of the args provided for browser "http"`)] = false
				} else {
					cfg.Browser.HTTP = cmd
				}
			} else if isGemini {
				if !found {
					errors[fmt.Errorf(`[URL] must be one of the args provided for browser "gemini"`)] = false
				} else {
					cfg.Browser.Gemini = cmd
				}
			}
		default:
			errors[fmt.Errorf("unknown directive within browser %q", n)] = false
		}
	}

	if !foundNav {
		errors[fmt.Errorf("navigate is a required directive for browser")] = false
	}

	return errors
}