github.com/stackdocker/rkt@v0.10.1-0.20151109095037-1aa827478248/tests/testutils/httputils.go (about)

     1  // Copyright 2015 The rkt Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package testutils
    16  
    17  import (
    18  	"fmt"
    19  	"io/ioutil"
    20  	"net"
    21  	"net/http"
    22  	"os"
    23  	"time"
    24  
    25  	"github.com/coreos/rkt/Godeps/_workspace/src/github.com/hydrogen18/stoppableListener"
    26  	"github.com/coreos/rkt/tests/testutils/logger"
    27  )
    28  
    29  func HttpServe(addr string, timeout int) error {
    30  	hostname, err := os.Hostname()
    31  	if err != nil {
    32  		panic(err)
    33  	}
    34  
    35  	originalListener, err := net.Listen("tcp4", addr)
    36  	if err != nil {
    37  		panic(err)
    38  	}
    39  	sl, err := stoppableListener.New(originalListener)
    40  	if err != nil {
    41  		panic(err)
    42  	}
    43  
    44  	c := make(chan string)
    45  	go func() {
    46  		logger.Logf("%v: serving on %v\n", hostname, addr)
    47  
    48  		// Wait for either timeout or connect from client
    49  		select {
    50  		case <-time.After(time.Duration(timeout) * time.Second):
    51  			{
    52  				logger.Logf("%v: Serve timed out after %v seconds\n", hostname, timeout)
    53  			}
    54  		case client := (<-c):
    55  			{
    56  				logger.Logf("%v: Serve got a connection from %v\n", hostname, client)
    57  			}
    58  		}
    59  		sl.Stop()
    60  	}()
    61  
    62  	serveMux := http.NewServeMux()
    63  	serveMux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
    64  		logger.Logf("%v: Serve got a connection from %v\n", hostname, r.RemoteAddr)
    65  		fmt.Fprintf(w, "%v", hostname)
    66  		c <- r.RemoteAddr
    67  	})
    68  	err = http.Serve(sl, serveMux)
    69  	if err != nil && err.Error() == "Listener stopped" {
    70  		err = nil
    71  	}
    72  	return err
    73  }
    74  
    75  func HttpGet(addr string) (string, error) {
    76  	logger.Logf("Connecting to %v", addr)
    77  	res, err := http.Get(fmt.Sprintf("%v", addr))
    78  	if err != nil {
    79  		return "", err
    80  	}
    81  	text, err := ioutil.ReadAll(res.Body)
    82  	res.Body.Close()
    83  	if err != nil {
    84  		return "", err
    85  	}
    86  	return string(text), nil
    87  }