github.com/aarzilli/tools@v0.0.0-20151123112009-0d27094f75e0/net/http/fetch/util.go (about)

     1  package fetch
     2  
     3  import (
     4  	"net"
     5  	"net/http"
     6  	"net/url"
     7  	"strings"
     8  
     9  	"github.com/pbberlin/tools/net/http/loghttp"
    10  )
    11  
    12  func HostFromReq(r *http.Request) string {
    13  	return splitPort(r.Host)
    14  }
    15  
    16  // A better url.Parse
    17  func URLFromString(surl string) (*url.URL, error) {
    18  
    19  	// Prevent "google.com" => u.Host == "" when scheme == ""
    20  	if !strings.HasPrefix(surl, "http://") && !strings.HasPrefix(surl, "https://") {
    21  		surl = "https://" + surl
    22  	}
    23  	ourl, err := url.Parse(surl)
    24  
    25  	return ourl, err
    26  
    27  }
    28  
    29  func HostFromStringUrl(surl string) string {
    30  
    31  	// Prevent "google.com" => u.Host == "" when scheme == ""
    32  	if !strings.HasPrefix(surl, "http://") && !strings.HasPrefix(surl, "https://") {
    33  		surl = "https://" + surl
    34  	}
    35  	url2, _ := url.Parse(surl)
    36  
    37  	return splitPort(url2.Host)
    38  }
    39  
    40  func PathFromStringUrl(surl string) string {
    41  
    42  	// Prevent "google.com" => u.Host == "" when scheme == ""
    43  	if !strings.HasPrefix(surl, "http://") && !strings.HasPrefix(surl, "https://") {
    44  		surl = "https://" + surl
    45  	}
    46  	url2, _ := url.Parse(surl)
    47  
    48  	return splitPort(url2.Path)
    49  }
    50  
    51  func HostFromUrl(u *url.URL) string {
    52  
    53  	// Prevent "google.com" => u.Host == "" when scheme == ""
    54  	surl := u.String()
    55  	return HostFromStringUrl(surl)
    56  }
    57  
    58  func splitPort(hp string) string {
    59  
    60  	lg, b := loghttp.BuffLoggerUniversal(nil, nil)
    61  	_ = b
    62  
    63  	host, port, err := net.SplitHostPort(hp)
    64  	_ = port
    65  
    66  	if err != nil {
    67  		if strings.Contains(err.Error(), "missing port in address") {
    68  			// normal
    69  		} else {
    70  			lg(err)
    71  		}
    72  		host = hp
    73  	}
    74  
    75  	return host
    76  }