90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
package main
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import (
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"errors"
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"io/ioutil"
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"os"
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"gopkg.in/yaml.v2"
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"github.com/chihaya/chihaya/frontend/http"
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"github.com/chihaya/chihaya/frontend/udp"
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"github.com/chihaya/chihaya/middleware"
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// Imported to register as middleware drivers.
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_ "github.com/chihaya/chihaya/middleware/clientapproval"
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_ "github.com/chihaya/chihaya/middleware/jwt"
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_ "github.com/chihaya/chihaya/middleware/varinterval"
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// Imported to register as storage drivers.
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_ "github.com/chihaya/chihaya/storage/memory"
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_ "github.com/chihaya/chihaya/storage/memorybysubnet"
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)
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type storageConfig struct {
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Name string `yaml:"name"`
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Config interface{} `yaml:"config"`
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}
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// Config represents the configuration used for executing Chihaya.
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type Config struct {
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middleware.ResponseConfig `yaml:",inline"`
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PrometheusAddr string `yaml:"prometheus_addr"`
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HTTPConfig http.Config `yaml:"http"`
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UDPConfig udp.Config `yaml:"udp"`
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Storage storageConfig `yaml:"storage"`
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PreHooks []middleware.HookConfig `yaml:"prehooks"`
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PostHooks []middleware.HookConfig `yaml:"posthooks"`
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}
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// PreHookNames returns only the names of the configured middleware.
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func (cfg Config) PreHookNames() (names []string) {
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for _, hook := range cfg.PreHooks {
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names = append(names, hook.Name)
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}
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return
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}
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// PostHookNames returns only the names of the configured middleware.
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func (cfg Config) PostHookNames() (names []string) {
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for _, hook := range cfg.PostHooks {
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names = append(names, hook.Name)
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}
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return
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}
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// ConfigFile represents a namespaced YAML configation file.
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type ConfigFile struct {
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Chihaya Config `yaml:"chihaya"`
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}
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// ParseConfigFile returns a new ConfigFile given the path to a YAML
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// configuration file.
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//
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// It supports relative and absolute paths and environment variables.
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func ParseConfigFile(path string) (*ConfigFile, error) {
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if path == "" {
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return nil, errors.New("no config path specified")
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}
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f, err := os.Open(os.ExpandEnv(path))
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if err != nil {
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return nil, err
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}
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defer f.Close()
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contents, err := ioutil.ReadAll(f)
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if err != nil {
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return nil, err
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}
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var cfgFile ConfigFile
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err = yaml.Unmarshal(contents, &cfgFile)
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if err != nil {
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return nil, err
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}
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return &cfgFile, nil
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}
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