2020-04-01 02:08:21 +00:00
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package main
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import (
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"bytes"
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"fmt"
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"github.com/baez90/inetmock/internal/config"
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"github.com/baez90/inetmock/pkg/path"
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"go.uber.org/zap"
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"net/http"
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"path/filepath"
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"sync"
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)
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const (
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name = "http_mock"
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)
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2020-04-01 22:58:44 +00:00
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type httpHandler struct {
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2020-04-01 02:08:21 +00:00
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logger *zap.Logger
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router *RegexpHandler
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server *http.Server
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}
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2020-04-01 22:58:44 +00:00
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func (p *httpHandler) Run(config config.HandlerConfig) {
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2020-04-01 02:08:21 +00:00
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options := loadFromConfig(config.Options())
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addr := fmt.Sprintf("%s:%d", config.ListenAddress(), config.Port())
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p.server = &http.Server{Addr: addr, Handler: p.router}
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p.logger = p.logger.With(
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zap.String("address", addr),
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)
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for _, rule := range options.Rules {
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p.setupRoute(rule)
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}
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go p.startServer()
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}
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2020-04-01 22:58:44 +00:00
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func (p *httpHandler) Shutdown(wg *sync.WaitGroup) {
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2020-04-01 02:08:21 +00:00
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if err := p.server.Close(); err != nil {
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p.logger.Error(
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"failed to shutdown HTTP server",
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zap.Error(err),
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)
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}
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wg.Done()
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}
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2020-04-01 22:58:44 +00:00
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func (p *httpHandler) startServer() {
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2020-04-01 02:08:21 +00:00
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if err := p.server.ListenAndServe(); err != nil {
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p.logger.Error(
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"failed to start http listener",
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zap.Error(err),
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)
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}
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}
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2020-04-01 22:58:44 +00:00
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func (p *httpHandler) setupRoute(rule targetRule) {
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2020-04-01 02:08:21 +00:00
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p.logger.Info(
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"setup routing",
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2020-04-06 22:17:07 +00:00
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zap.String("route", rule.Pattern().String()),
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zap.String("response", rule.Response()),
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2020-04-01 02:08:21 +00:00
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)
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2020-04-06 22:17:07 +00:00
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p.router.Handler(rule.Pattern(), createHandlerForTarget(p.logger, rule.response))
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2020-04-01 02:08:21 +00:00
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}
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func createHandlerForTarget(logger *zap.Logger, targetPath string) http.Handler {
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return http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
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targetFilePath := filepath.Join(path.WorkingDirectory(), targetPath)
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headerWriter := &bytes.Buffer{}
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request.Header.Write(headerWriter)
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logger.Info(
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"Handling request",
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zap.String("source", request.RemoteAddr),
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zap.String("host", request.Host),
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zap.String("method", request.Method),
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zap.String("protocol", request.Proto),
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zap.String("path", request.RequestURI),
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2020-04-06 22:17:07 +00:00
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zap.String("response", targetFilePath),
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2020-04-01 02:08:21 +00:00
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zap.Reflect("headers", request.Header),
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)
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http.ServeFile(writer, request, targetFilePath)
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})
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}
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