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package logging
import (
"net/http"
"github.com/sirupsen/logrus"
"gitlab.com/gitlab-org/labkit/log"
"gitlab.com/gitlab-org/gitlab-pages/internal/request"
)
// ConfigureLogging will initialize the system logger.
func ConfigureLogging(format string, verbose bool) error {
var levelOption log.LoggerOption
if format == "" {
format = "text"
}
if verbose {
levelOption = log.WithLogLevel("trace")
} else {
levelOption = log.WithLogLevel("info")
}
_, err := log.Initialize(
log.WithFormatter(format),
levelOption,
)
return err
}
// getAccessLogger will return the default logger, except when
// the log format is text, in which case a combined HTTP access
// logger will be configured. This behaviour matches Workhorse
func getAccessLogger(format string) (*logrus.Logger, error) {
if format != "text" && format != "" {
return logrus.StandardLogger(), nil
}
accessLogger := log.New()
_, err := log.Initialize(
log.WithLogger(accessLogger), // Configure `accessLogger`
log.WithFormatter("combined"), // Use the combined formatter
)
if err != nil {
return nil, err
}
return accessLogger, nil
}
// getExtraLogFields is used to inject additional fields into the
// HTTP access logger middleware.
func getExtraLogFields(r *http.Request) log.Fields {
logFields := log.Fields{
"pages_https": request.IsHTTPS(r),
"pages_host": request.GetHost(r),
}
if d := request.GetDomain(r); d != nil {
if lp := d.GetLookupPath(r); lp != nil {
logFields["pages_project_serving_type"] = lp.ServingType
logFields["pages_project_prefix"] = lp.Prefix
logFields["pages_project_id"] = lp.ProjectID
}
}
return logFields
}
// BasicAccessLogger configures the GitLab pages basic HTTP access logger middleware
func BasicAccessLogger(handler http.Handler, format string, extraFields log.ExtraFieldsGeneratorFunc) (http.Handler, error) {
accessLogger, err := getAccessLogger(format)
if err != nil {
return nil, err
}
if extraFields == nil {
extraFields = func(r *http.Request) log.Fields {
return log.Fields{
"pages_https": request.IsHTTPS(r),
"pages_host": r.Host,
}
}
}
return log.AccessLogger(handler,
log.WithExtraFields(extraFields),
log.WithAccessLogger(accessLogger),
), nil
}
// AccessLogger configures the GitLab pages HTTP access logger middleware with extra log fields
func AccessLogger(handler http.Handler, format string) (http.Handler, error) {
return BasicAccessLogger(handler, format, getExtraLogFields)
}
// LogRequest will inject request host and path to the logged messages
func LogRequest(r *http.Request) *logrus.Entry {
return log.WithFields(log.Fields{
"host": r.Host,
"path": r.URL.Path,
})
}
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