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101 lines
2.7 KiB
Go
101 lines
2.7 KiB
Go
package logger
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import (
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"time"
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"github.com/kataras/iris/context"
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)
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// The SkipperFunc signature, used to serve the main request without logs.
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// See `Configuration` too.
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type SkipperFunc func(ctx context.Context) bool
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// Config contains the options for the logger middleware
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// can be optionally be passed to the `New`.
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type Config struct {
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// Status displays status code (bool).
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//
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// Defaults to true.
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Status bool
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// IP displays request's remote address (bool).
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//
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// Defaults to true.
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IP bool
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// Method displays the http method (bool).
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//
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// Defaults to true.
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Method bool
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// Path displays the request path (bool).
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//
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// Defaults to true.
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Path bool
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// Columns will display the logs as well formatted columns (bool).
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// If custom `LogFunc` has been provided then this field is useless and users should
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// use the `Columinize` function of the logger to get the ouput result as columns.
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//
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// Defaults to true.
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Columns bool
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// MessageContextKey if not empty,
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// the middleware will try to fetch
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// the contents with `ctx.Values().Get(MessageContextKey)`
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// and if available then these contents will be
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// appended as part of the logs (with `%v`, in order to be able to set a struct too),
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// if Columns field was setted to true then
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// a new column will be added named 'Message'.
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//
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// Defaults to empty.
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MessageContextKey string
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// LogFunc is the writer which logs are written to,
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// if missing the logger middleware uses the app.Logger().Infof instead.
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// Note that message argument can be empty.
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LogFunc func(now time.Time, latency time.Duration, status, ip, method, path string, message interface{})
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// Skippers used to skip the logging i.e by `ctx.Path()` and serve
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// the next/main handler immediately.
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Skippers []SkipperFunc
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// the Skippers as one function in order to reduce the time needed to
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// combine them at serve time.
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skip SkipperFunc
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}
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// DefaultConfig returns a default config
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// that have all boolean fields to true,
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// all strings are empty,
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// LogFunc and Skippers to nil as well.
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func DefaultConfig() Config {
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return Config{
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Status: true,
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IP: true,
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Method: true,
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Path: true,
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Columns: true,
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MessageContextKey: "",
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LogFunc: nil,
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Skippers: nil,
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skip: nil,
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}
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}
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// AddSkipper adds a skipper to the configuration.
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func (c *Config) AddSkipper(sk SkipperFunc) {
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c.Skippers = append(c.Skippers, sk)
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c.buildSkipper()
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}
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func (c *Config) buildSkipper() {
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if len(c.Skippers) == 0 {
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return
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}
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skippersLocked := c.Skippers[0:]
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c.skip = func(ctx context.Context) bool {
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for _, s := range skippersLocked {
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if s(ctx) {
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return true
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}
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}
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return false
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}
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}
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