Peter Kurfer
63ba6da810
- add random and incremental DNS fallback strategy - add option to handle DNS requests based on regex patterns - made Makefiles plugin independent - extended config - set default plugins directory in Dockerfile
100 lines
2.2 KiB
Go
100 lines
2.2 KiB
Go
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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"regexp"
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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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type httpHandler struct {
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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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func (p *httpHandler) Run(config config.HandlerConfig) {
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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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func (p *httpHandler) Shutdown(wg *sync.WaitGroup) {
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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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func (p *httpHandler) startServer() {
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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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func (p *httpHandler) setupRoute(rule targetRule) {
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var compiled *regexp.Regexp
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var err error
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if compiled, err = regexp.Compile(rule.pattern); err != nil {
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p.logger.Warn(
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"failed to parse route - skipping",
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zap.String("route", rule.pattern),
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zap.Error(err),
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)
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return
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}
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p.logger.Info(
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"setup routing",
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zap.String("route", compiled.String()),
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zap.String("target", rule.target),
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)
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p.router.Handler(compiled, createHandlerForTarget(p.logger, rule.target))
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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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zap.String("target", targetFilePath),
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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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