summaryrefslogtreecommitdiff
path: root/internal/config/config.go
blob: be9efa36d20d22c45b4bf76a7989a55f3c08b552 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
package config

import (
	"io/ioutil"
	"net/url"
	"os"
	"path"
	"path/filepath"

	"gitlab.com/gitlab-org/gitlab-shell/client"
	yaml "gopkg.in/yaml.v2"
)

const (
	configFile            = "config.yml"
	logFile               = "gitlab-shell.log"
	defaultSecretFileName = ".gitlab_shell_secret"
)

type HttpSettingsConfig struct {
	User               string `yaml:"user"`
	Password           string `yaml:"password"`
	ReadTimeoutSeconds uint64 `yaml:"read_timeout"`
	CaFile             string `yaml:"ca_file"`
	CaPath             string `yaml:"ca_path"`
	SelfSignedCert     bool   `yaml:"self_signed_cert"`
}

type Config struct {
	RootDir        string
	LogFile        string             `yaml:"log_file"`
	LogFormat      string             `yaml:"log_format"`
	GitlabUrl      string             `yaml:"gitlab_url"`
	GitlabTracing  string             `yaml:"gitlab_tracing"`
	SecretFilePath string             `yaml:"secret_file"`
	Secret         string             `yaml:"secret"`
	SslCertDir     string             `yaml:"ssl_cert_dir"`
	HttpSettings   HttpSettingsConfig `yaml:"http_settings"`
	HttpClient     *client.HttpClient
}

func (c *Config) GetHttpClient() *client.HttpClient {
	if c.HttpClient != nil {
		return c.HttpClient
	}

	client := client.NewHTTPClient(
		c.GitlabUrl,
		c.HttpSettings.CaFile,
		c.HttpSettings.CaPath,
		c.HttpSettings.SelfSignedCert,
		c.HttpSettings.ReadTimeoutSeconds)

	c.HttpClient = client

	return client
}

func New() (*Config, error) {
	dir, err := os.Getwd()
	if err != nil {
		return nil, err
	}

	return NewFromDir(dir)
}

func NewFromDir(dir string) (*Config, error) {
	return newFromFile(path.Join(dir, configFile))
}

func newFromFile(filename string) (*Config, error) {
	cfg := &Config{RootDir: path.Dir(filename)}

	configBytes, err := ioutil.ReadFile(filename)
	if err != nil {
		return nil, err
	}

	if err := parseConfig(configBytes, cfg); err != nil {
		return nil, err
	}

	return cfg, nil
}

// parseConfig expects YAML data in configBytes and a Config instance with RootDir set.
func parseConfig(configBytes []byte, cfg *Config) error {
	if err := yaml.Unmarshal(configBytes, cfg); err != nil {
		return err
	}

	if cfg.LogFile == "" {
		cfg.LogFile = logFile
	}

	if len(cfg.LogFile) > 0 && cfg.LogFile[0] != '/' {
		cfg.LogFile = path.Join(cfg.RootDir, cfg.LogFile)
	}

	if cfg.LogFormat == "" {
		cfg.LogFormat = "text"
	}

	if cfg.GitlabUrl != "" {
		unescapedUrl, err := url.PathUnescape(cfg.GitlabUrl)
		if err != nil {
			return err
		}

		cfg.GitlabUrl = unescapedUrl
	}

	if err := parseSecret(cfg); err != nil {
		return err
	}

	return nil
}

func parseSecret(cfg *Config) error {
	// The secret was parsed from yaml no need to read another file
	if cfg.Secret != "" {
		return nil
	}

	if cfg.SecretFilePath == "" {
		cfg.SecretFilePath = defaultSecretFileName
	}

	if !filepath.IsAbs(cfg.SecretFilePath) {
		cfg.SecretFilePath = path.Join(cfg.RootDir, cfg.SecretFilePath)
	}

	secretFileContent, err := ioutil.ReadFile(cfg.SecretFilePath)
	if err != nil {
		return err
	}
	cfg.Secret = string(secretFileContent)

	return nil
}