Skip to content

G
Geth-Modification
Commit ac193e36 authored by holisticode's avatar holisticode Committed by Felix Lange
Browse files
Options

swarm/api/http: add error pages (#14967)

parent 5ba9225f
Hide whitespace changes
Inline Side-by-side
Showing with 662 additions and 20 deletions
swarm/api/api.go
View file @ ac193e36
......@@ -132,6 +132,7 @@ func (self *Api) Put(content, contentType string) (storage.Key, error) {
func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionReader, mimeType string, status int, err error) {
trie, err := loadManifest(self.dpa, key, nil)
if err != nil {
status = http.StatusNotFound
log.Warn(fmt.Sprintf("loadManifestTrie error: %v", err))
return
}
......
swarm/api/http/error.go 0 → 100644
View file @ ac193e36
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
/*
Show nicely (but simple) formatted HTML error pages (or respond with JSON
if the appropriate `Accept` header is set)) for the http package.
*/
package http
import (
"encoding/json"
"fmt"
"html/template"
"net/http"
"time"
"github.com/ethereum/go-ethereum/log"
)
//templateMap holds a mapping of an HTTP error code to a template
var templateMap map[int]*template.Template
//parameters needed for formatting the correct HTML page
type ErrorParams struct {
Msg string
Code int
Timestamp string
template *template.Template
Details template.HTML
}
//we init the error handling right on boot time, so lookup and http response is fast
func init() {
initErrHandling()
}
func initErrHandling() {
//pages are saved as strings - get these strings
genErrPage := GetGenericErrorPage()
notFoundPage := GetNotFoundErrorPage()
//map the codes to the available pages
tnames := map[int]string{
0: genErrPage, //default
400: genErrPage,
404: notFoundPage,
500: genErrPage,
}
templateMap = make(map[int]*template.Template)
for code, tname := range tnames {
//assign formatted HTML to the code
templateMap[code] = template.Must(template.New(fmt.Sprintf("%d", code)).Parse(tname))
}
}
//ShowError is used to show an HTML error page to a client.
//If there is an `Accept` header of `application/json`, JSON will be returned instead
//The function just takes a string message which will be displayed in the error page.
//The code is used to evaluate which template will be displayed
//(and return the correct HTTP status code)
func ShowError(w http.ResponseWriter, r *http.Request, msg string, code int) {
if code == http.StatusInternalServerError {
log.Error(msg)
}
respond(w, r, &ErrorParams{
Code: code,
Msg: msg,
Timestamp: time.Now().Format(time.RFC1123),
template: getTemplate(code),
})
}
//evaluate if client accepts html or json response
func respond(w http.ResponseWriter, r *http.Request, params *ErrorParams) {
w.WriteHeader(params.Code)
if r.Header.Get("Accept") == "application/json" {
respondJson(w, params)
} else {
respondHtml(w, params)
}
}
//return a HTML page
func respondHtml(w http.ResponseWriter, params *ErrorParams) {
err := params.template.Execute(w, params)
if err != nil {
log.Error(err.Error())
}
}
//return JSON
func respondJson(w http.ResponseWriter, params *ErrorParams) {
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(params)
}
//get the HTML template for a given code
func getTemplate(code int) *template.Template {
if val, tmpl := templateMap[code]; tmpl {
return val
} else {
return templateMap[0]
}
}
swarm/api/http/error_templates.go 0 → 100644
View file @ ac193e36
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
/*
We use html templates to handle simple but as informative as possible error pages.
To eliminate circular dependency in case of an error, we don't store error pages on swarm.
We can't save the error pages as html files on disk, or when deploying compiled binaries
they won't be found.
For this reason we resort to save the HTML error pages as strings, which then can be
parsed by Go's html/template package
*/
package http
//This returns the HTML for generic errors
func GetGenericErrorPage() string {
page := `
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
<meta http-equiv="X-UA-Compatible" ww="chrome=1">
<meta name="description" content="Ethereum/Swarm error page">
<meta property="og:url" content="https://swarm-gateways.net/bzz:/theswarm.eth">
<style>
body, div, header, footer {
margin: 0;
padding: 0;
}
body {
overflow: hidden;
}
.container {
min-width: 100%;
min-height: 100%;
max-height: 100%;
}
header {
display: flex;
align-items: center;
background-color: #ffa500;
/* height: 20vh; */
padding: 5px;
}
.header-left, .header-right {
width: 20%;
}
.header-left {
padding-left: 40px;
float: left;
}
.header-right {
padding-right: 40px;
float: right;
}
.page-title {
/* margin-top: 4.5vh; */
text-align: center;
float: left;
width: 60%;
color: white;
}
content-body {
display: block;
margin: 0 auto;
/* width: 50%; */
min-height: 60vh;
max-height: 60vh;
padding: 50px 20px;
opacity: 0.6;
background-color: #A9F5BF;
}
table {
font-size: 1.2em;
margin: 0 auto;
}
tr {
height: 60px;
}
td {
text-align: center;
}
.key {
color: #111;
font-weight: bold;
width: 200px;
}
.value {
color: red;
font-weight: bold
}
footer {
height: 20vh;
background-color: #ffa500;
font-size: 1em;
text-align: center;
padding: 20px;
}
</style>
<title>Swarm::HTTP Error Page</title>
</head>
<body>
<div class="container">
<header>
<div class="header-left">
<img style="height:18vh;margin-left:40px" src="data:image/png;base64,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"/>
</div>
<div class="page-title">
<h1>There was a problem serving the requested page</h1>
</div>
<div class="header-right">
<div id="timestamp">{{.Timestamp}}</div>
</div>
</header>
<content-body>
<section>
<table>
<thead>
<td style="height: 150px; font-size: 1.3em; color: black; font-weight: bold">
Hmmmmm....Swarm was not able to serve your request!
</td>
</thead>
<tbody>
<tr>
<td class="key">
Error message:
</td>
</tr>
<tr>
<td class="value">
{{.Msg}}
</td>
</tr>
<tr>
<td class="key">
Error code:
</td>
</tr>
<tr>
<td class="value">
{{.Code}}
</td>
</tr>
</tbody>
</table>
</section>
</content-body>
<footer>
<p>
Swarm: Serverless Hosting Incentivised Peer-To-Peer Storage And Content Distribution<br/>
<a href="http://swarm-gateways.net/bzz:/theswarm.eth">Swarm</a>
</p>
</footer>
</div>
</body>
</html>
`
return page
}
//This returns the HTML for a 404 Not Found error
func GetNotFoundErrorPage() string {
page := `
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
<meta http-equiv="X-UA-Compatible" ww="chrome=1">
<meta name="description" content="Ethereum/Swarm error page">
<meta property="og:url" content="https://swarm-gateways.net/bzz:/theswarm.eth">
<style>
body, div, header, footer {
margin: 0;
padding: 0;
}
body {
overflow: hidden;
}
.container {
min-width: 100%;
min-height: 100%;
max-height: 100%;
}
header {
display: flex;
align-items: center;
background-color: #ffa500;
/* height: 20vh; */
padding: 5px;
}
.header-left, .header-right {
width: 20%;
}
.header-left {
padding-left: 40px;
float: left;
}
.header-right {
padding-right: 40px;
float: right;
}
.page-title {
/* margin-top: 4.5vh; */
text-align: center;
float: left;
width: 60%;
color: white;
}
content-body {
display: block;
margin: 0 auto;
/* width: 50%; */
min-height: 60vh;
max-height: 60vh;
padding: 50px 20px;
opacity: 0.6;
background-color: #A9F5BF;
}
table {
font-size: 1.2em;
margin: 0 auto;
}
tr {
height: 60px;
}
td {
text-align: center;
}
.key {
color: #111;
font-weight: bold;
width: 200px;
}
.value {
color: red;
font-weight: bold
}
footer {
height: 20vh;
background-color: #ffa500;
font-size: 1em;
text-align: center;
padding: 20px;
}
</style>
<title>Swarm::404 HTTP Not Found</title>
</head>
<body>
<div class="container">
<header>
<div class="header-left">
<img style="height:18vh;margin-left:40px" src="data:image/png;base64,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"/>
</div>
<div class="page-title">
<h1>Resource Not Found</h1>
</div>
<div class="header-right">
<div id="timestamp">{{.Timestamp}}</div>
</div>
</header>
<content-body>
<section>
<table>
<thead>
<td style="height: 150px; font-size: 1.3em; color: black; font-weight: bold">
Unfortunately, the resource you were trying to access could not be found on swarm.
</td>
</thead>
<tbody>
<tr>
<td class="key">
</td>
</tr>
<tr>
<td class="value">
{{.Msg}}
</td>
</tr>
<tr>
<td class="key">
Error code:
</td>
</tr>
<tr>
<td class="value">
{{.Code}}
</td>
</tr>
</tbody>
</table>
</section>
</content-body>
<footer>
<p>
Swarm: Serverless Hosting Incentivised Peer-To-Peer Storage And Content Distribution<br/>
<a href="http://swarm-gateways.net/bzz:/theswarm.eth">Swarm</a>
</p>
</footer>
</div>
</body>
</html>
`
return page
}
swarm/api/http/error_test.go 0 → 100644
View file @ ac193e36
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package http_test
import (
"encoding/json"
"golang.org/x/net/html"
"io/ioutil"
"net/http"
"strings"
"testing"
"github.com/ethereum/go-ethereum/swarm/testutil"
)
func TestError(t *testing.T) {
srv := testutil.NewTestSwarmServer(t)
defer srv.Close()
var resp *http.Response
var respbody []byte
url := srv.URL + "/this_should_fail_as_no_bzz_protocol_present"
resp, err := http.Get(url)
if err != nil {
t.Fatalf("Request failed: %v", err)
}
defer resp.Body.Close()
respbody, err = ioutil.ReadAll(resp.Body)
if resp.StatusCode != 400 && !strings.Contains(string(respbody), "Invalid URI &#34;/this_should_fail_as_no_bzz_protocol_present&#34;: unknown scheme") {
t.Fatalf("Response body does not match, expected: %v, to contain: %v; received code %d, expected code: %d", string(respbody), "Invalid bzz URI: unknown scheme", 400, resp.StatusCode)
}
_, err = html.Parse(strings.NewReader(string(respbody)))
if err != nil {
t.Fatalf("HTML validation failed for error page returned!")
}
}
func Test404Page(t *testing.T) {
srv := testutil.NewTestSwarmServer(t)
defer srv.Close()
var resp *http.Response
var respbody []byte
url := srv.URL + "/bzz:/1234567890123456789012345678901234567890123456789012345678901234"
resp, err := http.Get(url)
if err != nil {
t.Fatalf("Request failed: %v", err)
}
defer resp.Body.Close()
respbody, err = ioutil.ReadAll(resp.Body)
if resp.StatusCode != 404 || !strings.Contains(string(respbody), "404") {
t.Fatalf("Invalid Status Code received, expected 404, got %d", resp.StatusCode)
}
_, err = html.Parse(strings.NewReader(string(respbody)))
if err != nil {
t.Fatalf("HTML validation failed for error page returned!")
}
}
func Test500Page(t *testing.T) {
srv := testutil.NewTestSwarmServer(t)
defer srv.Close()
var resp *http.Response
var respbody []byte
url := srv.URL + "/bzz:/thisShouldFailWith500Code"
resp, err := http.Get(url)
if err != nil {
t.Fatalf("Request failed: %v", err)
}
defer resp.Body.Close()
respbody, err = ioutil.ReadAll(resp.Body)
if resp.StatusCode != 500 || !strings.Contains(string(respbody), "500") {
t.Fatalf("Invalid Status Code received, expected 500, got %d", resp.StatusCode)
}
_, err = html.Parse(strings.NewReader(string(respbody)))
if err != nil {
t.Fatalf("HTML validation failed for error page returned!")
}
}
func TestJsonResponse(t *testing.T) {
srv := testutil.NewTestSwarmServer(t)
defer srv.Close()
var resp *http.Response
var respbody []byte
url := srv.URL + "/bzz:/thisShouldFailWith500Code/"
req, err := http.NewRequest("GET", url, nil)
if err != nil {
t.Fatalf("Request failed: %v", err)
}
req.Header.Set("Accept", "application/json")
resp, err = http.DefaultClient.Do(req)
if err != nil {
t.Fatalf("Request failed: %v", err)
}
defer resp.Body.Close()
respbody, err = ioutil.ReadAll(resp.Body)
if resp.StatusCode != 500 {
t.Fatalf("Invalid Status Code received, expected 500, got %d", resp.StatusCode)
}
if !isJSON(string(respbody)) {
t.Fatalf("Expected repsonse to be JSON, received invalid JSON: %s", string(respbody))
}
}
func isJSON(s string) bool {
var js map[string]interface{}
return json.Unmarshal([]byte(s), &js) == nil
}
swarm/api/http/server.go
View file @ ac193e36
......@@ -332,7 +332,7 @@ func (s *Server) HandleGetRaw(w http.ResponseWriter, r *Request) {
return api.SkipManifest
})
if entry == nil {
http.NotFound(w, &r.Request)
s.NotFound(w, r, fmt.Errorf("Manifest entry could not be loaded"))
return
}
key = storage.Key(common.Hex2Bytes(entry.Hash))
......@@ -341,8 +341,7 @@ func (s *Server) HandleGetRaw(w http.ResponseWriter, r *Request) {
// check the root chunk exists by retrieving the file's size
reader := s.api.Retrieve(key)
if _, err := reader.Size(nil); err != nil {
s.logDebug("key not found %s: %s", key, err)
http.NotFound(w, &r.Request)
s.NotFound(w, r, fmt.Errorf("Root chunk not found %s: %s", key, err))
return
}
......@@ -534,16 +533,20 @@ func (s *Server) HandleGetFile(w http.ResponseWriter, r *Request) {
return
}
reader, contentType, _, err := s.api.Get(key, r.uri.Path)
reader, contentType, status, err := s.api.Get(key, r.uri.Path)
if err != nil {
s.Error(w, r, err)
switch status {
case http.StatusNotFound:
s.NotFound(w, r, err)
default:
s.Error(w, r, err)
}
return
}
// check the root chunk exists by retrieving the file's size
if _, err := reader.Size(nil); err != nil {
s.logDebug("file not found %s: %s", r.uri, err)
http.NotFound(w, &r.Request)
s.NotFound(w, r, fmt.Errorf("File not found %s: %s", r.uri, err))
return
}
......@@ -556,14 +559,14 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
s.logDebug("HTTP %s request URL: '%s', Host: '%s', Path: '%s', Referer: '%s', Accept: '%s'", r.Method, r.RequestURI, r.URL.Host, r.URL.Path, r.Referer(), r.Header.Get("Accept"))
uri, err := api.Parse(strings.TrimLeft(r.URL.Path, "/"))
req := &Request{Request: *r, uri: uri}
if err != nil {
s.logError("Invalid URI %q: %s", r.URL.Path, err)
http.Error(w, fmt.Sprintf("Invalid bzz URI: %s", err), http.StatusBadRequest)
s.BadRequest(w, req, fmt.Sprintf("Invalid URI %q: %s", r.URL.Path, err))
return
}
s.logDebug("%s request received for %s", r.Method, uri)
req := &Request{Request: *r, uri: uri}
switch r.Method {
case "POST":
if uri.Raw() {
......@@ -579,7 +582,7 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// strictly a traditional PUT request which replaces content
// at a URI, and POST is more ubiquitous)
if uri.Raw() {
http.Error(w, fmt.Sprintf("No PUT to %s allowed.", uri), http.StatusBadRequest)
ShowError(w, r, fmt.Sprintf("No PUT to %s allowed.", uri), http.StatusBadRequest)
return
} else {
s.HandlePostFiles(w, req)
......@@ -587,7 +590,7 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
case "DELETE":
if uri.Raw() {
http.Error(w, fmt.Sprintf("No DELETE to %s allowed.", uri), http.StatusBadRequest)
ShowError(w, r, fmt.Sprintf("No DELETE to %s allowed.", uri), http.StatusBadRequest)
return
}
s.HandleDelete(w, req)
......@@ -611,7 +614,7 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
s.HandleGetFile(w, req)
default:
http.Error(w, "Method "+r.Method+" is not supported.", http.StatusMethodNotAllowed)
ShowError(w, r, fmt.Sprintf("Method "+r.Method+" is not supported.", uri), http.StatusMethodNotAllowed)
}
}
......@@ -643,11 +646,13 @@ func (s *Server) logError(format string, v ...interface{}) {
}
func (s *Server) BadRequest(w http.ResponseWriter, r *Request, reason string) {
s.logDebug("bad request %s %s: %s", r.Method, r.uri, reason)
http.Error(w, reason, http.StatusBadRequest)
ShowError(w, &r.Request, fmt.Sprintf("Bad request %s %s: %s", r.Method, r.uri, reason), http.StatusBadRequest)
}
func (s *Server) Error(w http.ResponseWriter, r *Request, err error) {
s.logError("error serving %s %s: %s", r.Method, r.uri, err)
http.Error(w, err.Error(), http.StatusInternalServerError)
ShowError(w, &r.Request, fmt.Sprintf("Error serving %s %s: %s", r.Method, r.uri, err), http.StatusInternalServerError)
}
func (s *Server) NotFound(w http.ResponseWriter, r *Request, err error) {
ShowError(w, &r.Request, fmt.Sprintf("NOT FOUND error serving %s %s: %s", r.Method, r.uri, err), http.StatusNotFound)
}
swarm/api/http/server_test.go
View file @ ac193e36
......@@ -22,6 +22,7 @@ import (
"fmt"
"io/ioutil"
"net/http"
"strings"
"sync"
"testing"
......@@ -110,9 +111,9 @@ func TestBzzrGetPath(t *testing.T) {
}
nonhashresponses := []string{
"error resolving name: no DNS to resolve name: \"name\"\n",
"error resolving nonhash: immutable address not a content hash: \"nonhash\"\n",
"error resolving nonhash: no DNS to resolve name: \"nonhash\"\n",
"error resolving name: no DNS to resolve name: &#34;name&#34;",
"error resolving nonhash: immutable address not a content hash: &#34;nonhash&#34;",
"error resolving nonhash: no DNS to resolve name: &#34;nonhash&#34;",
}
for i, url := range nonhashtests {
......@@ -129,7 +130,7 @@ func TestBzzrGetPath(t *testing.T) {
if err != nil {
t.Fatalf("ReadAll failed: %v", err)
}
if string(respbody) != nonhashresponses[i] {
if !strings.Contains(string(respbody), nonhashresponses[i]) {
t.Fatalf("Non-Hash response body does not match, expected: %v, got: %v", nonhashresponses[i], string(respbody))
}
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment