accounts/abi: Add one-parameter event test case from enriquefynn/unpack_one_arg_event

8 files changed, 582 insertions, 24 deletions

diff --git a/swarm/api/api.go b/swarm/api/api.go
index 8c4bca2ec..0cf12fdbe 100644
--- a/swarm/api/api.go
+++ b/swarm/api/api.go
@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"path"
 	"regexp"
 	"strings"
 	"sync"
@@ -31,15 +32,110 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/swarm/storage"
 )
 
 var hashMatcher = regexp.MustCompile("^[0-9A-Fa-f]{64}")
 
+//setup metrics
+var (
+	apiResolveCount    = metrics.NewRegisteredCounter("api.resolve.count", nil)
+	apiResolveFail     = metrics.NewRegisteredCounter("api.resolve.fail", nil)
+	apiPutCount        = metrics.NewRegisteredCounter("api.put.count", nil)
+	apiPutFail         = metrics.NewRegisteredCounter("api.put.fail", nil)
+	apiGetCount        = metrics.NewRegisteredCounter("api.get.count", nil)
+	apiGetNotFound     = metrics.NewRegisteredCounter("api.get.notfound", nil)
+	apiGetHttp300      = metrics.NewRegisteredCounter("api.get.http.300", nil)
+	apiModifyCount     = metrics.NewRegisteredCounter("api.modify.count", nil)
+	apiModifyFail      = metrics.NewRegisteredCounter("api.modify.fail", nil)
+	apiAddFileCount    = metrics.NewRegisteredCounter("api.addfile.count", nil)
+	apiAddFileFail     = metrics.NewRegisteredCounter("api.addfile.fail", nil)
+	apiRmFileCount     = metrics.NewRegisteredCounter("api.removefile.count", nil)
+	apiRmFileFail      = metrics.NewRegisteredCounter("api.removefile.fail", nil)
+	apiAppendFileCount = metrics.NewRegisteredCounter("api.appendfile.count", nil)
+	apiAppendFileFail  = metrics.NewRegisteredCounter("api.appendfile.fail", nil)
+)
+
 type Resolver interface {
 	Resolve(string) (common.Hash, error)
 }
 
+// NoResolverError is returned by MultiResolver.Resolve if no resolver
+// can be found for the address.
+type NoResolverError struct {
+	TLD string
+}
+
+func NewNoResolverError(tld string) *NoResolverError {
+	return &NoResolverError{TLD: tld}
+}
+
+func (e *NoResolverError) Error() string {
+	if e.TLD == "" {
+		return "no ENS resolver"
+	}
+	return fmt.Sprintf("no ENS endpoint configured to resolve .%s TLD names", e.TLD)
+}
+
+// MultiResolver is used to resolve URL addresses based on their TLDs.
+// Each TLD can have multiple resolvers, and the resoluton from the
+// first one in the sequence will be returned.
+type MultiResolver struct {
+	resolvers map[string][]Resolver
+}
+
+// MultiResolverOption sets options for MultiResolver and is used as
+// arguments for its constructor.
+type MultiResolverOption func(*MultiResolver)
+
+// MultiResolverOptionWithResolver adds a Resolver to a list of resolvers
+// for a specific TLD. If TLD is an empty string, the resolver will be added
+// to the list of default resolver, the ones that will be used for resolution
+// of addresses which do not have their TLD resolver specified.
+func MultiResolverOptionWithResolver(r Resolver, tld string) MultiResolverOption {
+	return func(m *MultiResolver) {
+		m.resolvers[tld] = append(m.resolvers[tld], r)
+	}
+}
+
+// NewMultiResolver creates a new instance of MultiResolver.
+func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) {
+	m = &MultiResolver{
+		resolvers: make(map[string][]Resolver),
+	}
+	for _, o := range opts {
+		o(m)
+	}
+	return m
+}
+
+// Resolve resolves address by choosing a Resolver by TLD.
+// If there are more default Resolvers, or for a specific TLD,
+// the Hash from the the first one which does not return error
+// will be returned.
+func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) {
+	rs := m.resolvers[""]
+	tld := path.Ext(addr)
+	if tld != "" {
+		tld = tld[1:]
+		rstld, ok := m.resolvers[tld]
+		if ok {
+			rs = rstld
+		}
+	}
+	if rs == nil {
+		return h, NewNoResolverError(tld)
+	}
+	for _, r := range rs {
+		h, err = r.Resolve(addr)
+		if err == nil {
+			return
+		}
+	}
+	return
+}
+
 /*
 Api implements webserver/file system related content storage and retrieval
 on top of the dpa
@@ -79,6 +175,7 @@ type ErrResolve error
 
 // DNS Resolver
 func (self *Api) Resolve(uri *URI) (storage.Key, error) {
+	apiResolveCount.Inc(1)
 	log.Trace(fmt.Sprintf("Resolving : %v", uri.Addr))
 
 	// if the URI is immutable, check if the address is a hash
@@ -93,6 +190,7 @@ func (self *Api) Resolve(uri *URI) (storage.Key, error) {
 	// if DNS is not configured, check if the address is a hash
 	if self.dns == nil {
 		if !isHash {
+			apiResolveFail.Inc(1)
 			return nil, fmt.Errorf("no DNS to resolve name: %q", uri.Addr)
 		}
 		return common.Hex2Bytes(uri.Addr), nil
@@ -103,6 +201,7 @@ func (self *Api) Resolve(uri *URI) (storage.Key, error) {
 	if err == nil {
 		return resolved[:], nil
 	} else if !isHash {
+		apiResolveFail.Inc(1)
 		return nil, err
 	}
 	return common.Hex2Bytes(uri.Addr), nil
@@ -110,16 +209,19 @@ func (self *Api) Resolve(uri *URI) (storage.Key, error) {
 
 // Put provides singleton manifest creation on top of dpa store
 func (self *Api) Put(content, contentType string) (storage.Key, error) {
+	apiPutCount.Inc(1)
 	r := strings.NewReader(content)
 	wg := &sync.WaitGroup{}
 	key, err := self.dpa.Store(r, int64(len(content)), wg, nil)
 	if err != nil {
+		apiPutFail.Inc(1)
 		return nil, err
 	}
 	manifest := fmt.Sprintf(`{"entries":[{"hash":"%v","contentType":"%s"}]}`, key, contentType)
 	r = strings.NewReader(manifest)
 	key, err = self.dpa.Store(r, int64(len(manifest)), wg, nil)
 	if err != nil {
+		apiPutFail.Inc(1)
 		return nil, err
 	}
 	wg.Wait()
@@ -130,8 +232,10 @@ func (self *Api) Put(content, contentType string) (storage.Key, error) {
 // to resolve basePath to content using dpa retrieve
 // it returns a section reader, mimeType, status and an error
 func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionReader, mimeType string, status int, err error) {
+	apiGetCount.Inc(1)
 	trie, err := loadManifest(self.dpa, key, nil)
 	if err != nil {
+		apiGetNotFound.Inc(1)
 		status = http.StatusNotFound
 		log.Warn(fmt.Sprintf("loadManifestTrie error: %v", err))
 		return
@@ -145,6 +249,7 @@ func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionRe
 		key = common.Hex2Bytes(entry.Hash)
 		status = entry.Status
 		if status == http.StatusMultipleChoices {
+			apiGetHttp300.Inc(1)
 			return
 		} else {
 			mimeType = entry.ContentType
@@ -153,6 +258,7 @@ func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionRe
 		}
 	} else {
 		status = http.StatusNotFound
+		apiGetNotFound.Inc(1)
 		err = fmt.Errorf("manifest entry for '%s' not found", path)
 		log.Warn(fmt.Sprintf("%v", err))
 	}
@@ -160,9 +266,11 @@ func (self *Api) Get(key storage.Key, path string) (reader storage.LazySectionRe
 }
 
 func (self *Api) Modify(key storage.Key, path, contentHash, contentType string) (storage.Key, error) {
+	apiModifyCount.Inc(1)
 	quitC := make(chan bool)
 	trie, err := loadManifest(self.dpa, key, quitC)
 	if err != nil {
+		apiModifyFail.Inc(1)
 		return nil, err
 	}
 	if contentHash != "" {
@@ -177,19 +285,23 @@ func (self *Api) Modify(key storage.Key, path, contentHash, contentType string)
 	}
 
 	if err := trie.recalcAndStore(); err != nil {
+		apiModifyFail.Inc(1)
 		return nil, err
 	}
 	return trie.hash, nil
 }
 
 func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver bool) (storage.Key, string, error) {
+	apiAddFileCount.Inc(1)
 
 	uri, err := Parse("bzz:/" + mhash)
 	if err != nil {
+		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
 	mkey, err := self.Resolve(uri)
 	if err != nil {
+		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
 
@@ -208,16 +320,19 @@ func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver
 
 	mw, err := self.NewManifestWriter(mkey, nil)
 	if err != nil {
+		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
 
 	fkey, err := mw.AddEntry(bytes.NewReader(content), entry)
 	if err != nil {
+		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
 
 	newMkey, err := mw.Store()
 	if err != nil {
+		apiAddFileFail.Inc(1)
 		return nil, "", err
 
 	}
@@ -227,13 +342,16 @@ func (self *Api) AddFile(mhash, path, fname string, content []byte, nameresolver
 }
 
 func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (string, error) {
+	apiRmFileCount.Inc(1)
 
 	uri, err := Parse("bzz:/" + mhash)
 	if err != nil {
+		apiRmFileFail.Inc(1)
 		return "", err
 	}
 	mkey, err := self.Resolve(uri)
 	if err != nil {
+		apiRmFileFail.Inc(1)
 		return "", err
 	}
 
@@ -244,16 +362,19 @@ func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (strin
 
 	mw, err := self.NewManifestWriter(mkey, nil)
 	if err != nil {
+		apiRmFileFail.Inc(1)
 		return "", err
 	}
 
 	err = mw.RemoveEntry(filepath.Join(path, fname))
 	if err != nil {
+		apiRmFileFail.Inc(1)
 		return "", err
 	}
 
 	newMkey, err := mw.Store()
 	if err != nil {
+		apiRmFileFail.Inc(1)
 		return "", err
 
 	}
@@ -262,6 +383,7 @@ func (self *Api) RemoveFile(mhash, path, fname string, nameresolver bool) (strin
 }
 
 func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, content []byte, oldKey storage.Key, offset int64, addSize int64, nameresolver bool) (storage.Key, string, error) {
+	apiAppendFileCount.Inc(1)
 
 	buffSize := offset + addSize
 	if buffSize < existingSize {
@@ -290,10 +412,12 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 
 	uri, err := Parse("bzz:/" + mhash)
 	if err != nil {
+		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
 	mkey, err := self.Resolve(uri)
 	if err != nil {
+		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
 
@@ -304,11 +428,13 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 
 	mw, err := self.NewManifestWriter(mkey, nil)
 	if err != nil {
+		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
 
 	err = mw.RemoveEntry(filepath.Join(path, fname))
 	if err != nil {
+		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
 
@@ -322,11 +448,13 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 
 	fkey, err := mw.AddEntry(io.Reader(combinedReader), entry)
 	if err != nil {
+		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
 
 	newMkey, err := mw.Store()
 	if err != nil {
+		apiAppendFileFail.Inc(1)
 		return nil, "", err
 
 	}
@@ -336,6 +464,7 @@ func (self *Api) AppendFile(mhash, path, fname string, existingSize int64, conte
 }
 
 func (self *Api) BuildDirectoryTree(mhash string, nameresolver bool) (key storage.Key, manifestEntryMap map[string]*manifestTrieEntry, err error) {
+
 	uri, err := Parse("bzz:/" + mhash)
 	if err != nil {
 		return nil, nil, err
diff --git a/swarm/api/api_test.go b/swarm/api/api_test.go
index e673f76c4..4ee26bd8a 100644
--- a/swarm/api/api_test.go
+++ b/swarm/api/api_test.go
@@ -237,3 +237,128 @@ func TestAPIResolve(t *testing.T) {
 		})
 	}
 }
+
+func TestMultiResolver(t *testing.T) {
+	doesntResolve := newTestResolver("")
+
+	ethAddr := "swarm.eth"
+	ethHash := "0x2222222222222222222222222222222222222222222222222222222222222222"
+	ethResolve := newTestResolver(ethHash)
+
+	testAddr := "swarm.test"
+	testHash := "0x1111111111111111111111111111111111111111111111111111111111111111"
+	testResolve := newTestResolver(testHash)
+
+	tests := []struct {
+		desc   string
+		r      Resolver
+		addr   string
+		result string
+		err    error
+	}{
+		{
+			desc: "No resolvers, returns error",
+			r:    NewMultiResolver(),
+			err:  NewNoResolverError(""),
+		},
+		{
+			desc:   "One default resolver, returns resolved address",
+			r:      NewMultiResolver(MultiResolverOptionWithResolver(ethResolve, "")),
+			addr:   ethAddr,
+			result: ethHash,
+		},
+		{
+			desc: "Two default resolvers, returns resolved address",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(ethResolve, ""),
+				MultiResolverOptionWithResolver(ethResolve, ""),
+			),
+			addr:   ethAddr,
+			result: ethHash,
+		},
+		{
+			desc: "Two default resolvers, first doesn't resolve, returns resolved address",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(doesntResolve, ""),
+				MultiResolverOptionWithResolver(ethResolve, ""),
+			),
+			addr:   ethAddr,
+			result: ethHash,
+		},
+		{
+			desc: "Default resolver doesn't resolve, tld resolver resolve, returns resolved address",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(doesntResolve, ""),
+				MultiResolverOptionWithResolver(ethResolve, "eth"),
+			),
+			addr:   ethAddr,
+			result: ethHash,
+		},
+		{
+			desc: "Three TLD resolvers, third resolves, returns resolved address",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(doesntResolve, "eth"),
+				MultiResolverOptionWithResolver(doesntResolve, "eth"),
+				MultiResolverOptionWithResolver(ethResolve, "eth"),
+			),
+			addr:   ethAddr,
+			result: ethHash,
+		},
+		{
+			desc: "One TLD resolver doesn't resolve, returns error",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(doesntResolve, ""),
+				MultiResolverOptionWithResolver(ethResolve, "eth"),
+			),
+			addr:   ethAddr,
+			result: ethHash,
+		},
+		{
+			desc: "One defautl and one TLD resolver, all doesn't resolve, returns error",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(doesntResolve, ""),
+				MultiResolverOptionWithResolver(doesntResolve, "eth"),
+			),
+			addr:   ethAddr,
+			result: ethHash,
+			err:    errors.New(`DNS name not found: "swarm.eth"`),
+		},
+		{
+			desc: "Two TLD resolvers, both resolve, returns resolved address",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(ethResolve, "eth"),
+				MultiResolverOptionWithResolver(testResolve, "test"),
+			),
+			addr:   testAddr,
+			result: testHash,
+		},
+		{
+			desc: "One TLD resolver, no default resolver, returns error for different TLD",
+			r: NewMultiResolver(
+				MultiResolverOptionWithResolver(ethResolve, "eth"),
+			),
+			addr: testAddr,
+			err:  NewNoResolverError("test"),
+		},
+	}
+	for _, x := range tests {
+		t.Run(x.desc, func(t *testing.T) {
+			res, err := x.r.Resolve(x.addr)
+			if err == nil {
+				if x.err != nil {
+					t.Fatalf("expected error %q, got result %q", x.err, res.Hex())
+				}
+				if res.Hex() != x.result {
+					t.Fatalf("expected result %q, got %q", x.result, res.Hex())
+				}
+			} else {
+				if x.err == nil {
+					t.Fatalf("expected no error, got %q", err)
+				}
+				if err.Error() != x.err.Error() {
+					t.Fatalf("expected error %q, got %q", x.err, err)
+				}
+			}
+		})
+	}
+}
diff --git a/swarm/api/config.go b/swarm/api/config.go
index 140c938ae..6b224140a 100644
--- a/swarm/api/config.go
+++ b/swarm/api/config.go
@@ -48,7 +48,7 @@ type Config struct {
 	*network.SyncParams
 	Contract    common.Address
 	EnsRoot     common.Address
-	EnsApi      string
+	EnsAPIs     []string
 	Path        string
 	ListenAddr  string
 	Port        string
@@ -75,7 +75,7 @@ func NewDefaultConfig() (self *Config) {
 		ListenAddr:    DefaultHTTPListenAddr,
 		Port:          DefaultHTTPPort,
 		Path:          node.DefaultDataDir(),
-		EnsApi:        node.DefaultIPCEndpoint("geth"),
+		EnsAPIs:       nil,
 		EnsRoot:       ens.TestNetAddress,
 		NetworkId:     network.NetworkId,
 		SwapEnabled:   false,
diff --git a/swarm/api/http/error.go b/swarm/api/http/error.go
index dbd97182f..9a65412cf 100644
--- a/swarm/api/http/error.go
+++ b/swarm/api/http/error.go
@@ -29,11 +29,19 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/swarm/api"
 )
 
 //templateMap holds a mapping of an HTTP error code to a template
 var templateMap map[int]*template.Template
+var caseErrors []CaseError
+
+//metrics variables
+var (
+	htmlCounter = metrics.NewRegisteredCounter("api.http.errorpage.html.count", nil)
+	jsonCounter = metrics.NewRegisteredCounter("api.http.errorpage.json.count", nil)
+)
 
 //parameters needed for formatting the correct HTML page
 type ErrorParams struct {
@@ -44,6 +52,13 @@ type ErrorParams struct {
 	Details   template.HTML
 }
 
+//a custom error case struct that would be used to store validators and
+//additional error info to display with client responses.
+type CaseError struct {
+	Validator func(*Request) bool
+	Msg       func(*Request) string
+}
+
 //we init the error handling right on boot time, so lookup and http response is fast
 func init() {
 	initErrHandling()
@@ -67,6 +82,29 @@ func initErrHandling() {
 		//assign formatted HTML to the code
 		templateMap[code] = template.Must(template.New(fmt.Sprintf("%d", code)).Parse(tname))
 	}
+
+	caseErrors = []CaseError{
+		{
+			Validator: func(r *Request) bool { return r.uri != nil && r.uri.Addr != "" && strings.HasPrefix(r.uri.Addr, "0x") },
+			Msg: func(r *Request) string {
+				uriCopy := r.uri
+				uriCopy.Addr = strings.TrimPrefix(uriCopy.Addr, "0x")
+				return fmt.Sprintf(`The requested hash seems to be prefixed with '0x'. You will be redirected to the correct URL within 5 seconds.<br/>
+			Please click <a href='%[1]s'>here</a> if your browser does not redirect you.<script>setTimeout("location.href='%[1]s';",5000);</script>`, "/"+uriCopy.String())
+			},
+		}}
+}
+
+//ValidateCaseErrors is a method that process the request object through certain validators
+//that assert if certain conditions are met for further information to log as an error
+func ValidateCaseErrors(r *Request) string {
+	for _, err := range caseErrors {
+		if err.Validator(r) {
+			return err.Msg(r)
+		}
+	}
+
+	return ""
 }
 
 //ShowMultipeChoices is used when a user requests a resource in a manifest which results
@@ -75,10 +113,10 @@ func initErrHandling() {
 //For example, if the user requests bzz:/<hash>/read and that manifest contains entries
 //"readme.md" and "readinglist.txt", a HTML page is returned with this two links.
 //This only applies if the manifest has no default entry
-func ShowMultipleChoices(w http.ResponseWriter, r *http.Request, list api.ManifestList) {
+func ShowMultipleChoices(w http.ResponseWriter, r *Request, list api.ManifestList) {
 	msg := ""
 	if list.Entries == nil {
-		ShowError(w, r, "Internal Server Error", http.StatusInternalServerError)
+		ShowError(w, r, "Could not resolve", http.StatusInternalServerError)
 		return
 	}
 	//make links relative
@@ -95,7 +133,7 @@ func ShowMultipleChoices(w http.ResponseWriter, r *http.Request, list api.Manife
 		//create clickable link for each entry
 		msg += "<a href='" + base + e.Path + "'>" + e.Path + "</a><br/>"
 	}
-	respond(w, r, &ErrorParams{
+	respond(w, &r.Request, &ErrorParams{
 		Code:      http.StatusMultipleChoices,
 		Details:   template.HTML(msg),
 		Timestamp: time.Now().Format(time.RFC1123),
@@ -108,13 +146,15 @@ func ShowMultipleChoices(w http.ResponseWriter, r *http.Request, list api.Manife
 //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) {
+func ShowError(w http.ResponseWriter, r *Request, msg string, code int) {
+	additionalMessage := ValidateCaseErrors(r)
 	if code == http.StatusInternalServerError {
 		log.Error(msg)
 	}
-	respond(w, r, &ErrorParams{
+	respond(w, &r.Request, &ErrorParams{
 		Code:      code,
 		Msg:       msg,
+		Details:   template.HTML(additionalMessage),
 		Timestamp: time.Now().Format(time.RFC1123),
 		template:  getTemplate(code),
 	})
@@ -132,6 +172,7 @@ func respond(w http.ResponseWriter, r *http.Request, params *ErrorParams) {
 
 //return a HTML page
 func respondHtml(w http.ResponseWriter, params *ErrorParams) {
+	htmlCounter.Inc(1)
 	err := params.template.Execute(w, params)
 	if err != nil {
 		log.Error(err.Error())
@@ -140,6 +181,7 @@ func respondHtml(w http.ResponseWriter, params *ErrorParams) {
 
 //return JSON
 func respondJson(w http.ResponseWriter, params *ErrorParams) {
+	jsonCounter.Inc(1)
 	w.Header().Set("Content-Type", "application/json")
 	json.NewEncoder(w).Encode(params)
 }
diff --git a/swarm/api/http/error_templates.go b/swarm/api/http/error_templates.go
index 0457cb8a7..cc9b996ba 100644
--- a/swarm/api/http/error_templates.go
+++ b/swarm/api/http/error_templates.go
@@ -168,6 +168,11 @@ func GetGenericErrorPage() string {
                   {{.Msg}}
                 </td>
               </tr>
+              <tr>
+                <td class="value">
+                  {{.Details}}
+                </td>
+              </tr>
 
               <tr>
                 <td class="key">
@@ -342,6 +347,12 @@ func GetNotFoundErrorPage() string {
                   {{.Msg}}
                 </td>
               </tr>
+              <tr>
+                <td class="value">
+                  {{.Details}}
+                </td>
+              </tr>
+
 
               <tr>
                 <td class="key">
diff --git a/swarm/api/http/error_test.go b/swarm/api/http/error_test.go
index c2c8b908b..dc545722e 100644
--- a/swarm/api/http/error_test.go
+++ b/swarm/api/http/error_test.go
@@ -18,12 +18,13 @@ package http_test
 
 import (
 	"encoding/json"
-	"golang.org/x/net/html"
 	"io/ioutil"
 	"net/http"
 	"strings"
 	"testing"
 
+	"golang.org/x/net/html"
+
 	"github.com/ethereum/go-ethereum/swarm/testutil"
 )
 
@@ -96,8 +97,37 @@ func Test500Page(t *testing.T) {
 	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)
+	if resp.StatusCode != 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 Test500PageWith0xHashPrefix(t *testing.T) {
+	srv := testutil.NewTestSwarmServer(t)
+	defer srv.Close()
+
+	var resp *http.Response
+	var respbody []byte
+
+	url := srv.URL + "/bzz:/0xthisShouldFailWith500CodeAndAHelpfulMessage"
+	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 {
+		t.Fatalf("Invalid Status Code received, expected 404, got %d", resp.StatusCode)
+	}
+
+	if !strings.Contains(string(respbody), "The requested hash seems to be prefixed with") {
+		t.Fatalf("Did not receive the expected error message")
 	}
 
 	_, err = html.Parse(strings.NewReader(string(respbody)))
@@ -127,8 +157,8 @@ func TestJsonResponse(t *testing.T) {
 	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 resp.StatusCode != 404 {
+		t.Fatalf("Invalid Status Code received, expected 404, got %d", resp.StatusCode)
 	}
 
 	if !isJSON(string(respbody)) {
diff --git a/swarm/api/http/server.go b/swarm/api/http/server.go
index 74341899d..b8e7436cf 100644
--- a/swarm/api/http/server.go
+++ b/swarm/api/http/server.go
@@ -37,11 +37,35 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/swarm/api"
 	"github.com/ethereum/go-ethereum/swarm/storage"
 	"github.com/rs/cors"
 )
 
+//setup metrics
+var (
+	postRawCount     = metrics.NewRegisteredCounter("api.http.post.raw.count", nil)
+	postRawFail      = metrics.NewRegisteredCounter("api.http.post.raw.fail", nil)
+	postFilesCount   = metrics.NewRegisteredCounter("api.http.post.files.count", nil)
+	postFilesFail    = metrics.NewRegisteredCounter("api.http.post.files.fail", nil)
+	deleteCount      = metrics.NewRegisteredCounter("api.http.delete.count", nil)
+	deleteFail       = metrics.NewRegisteredCounter("api.http.delete.fail", nil)
+	getCount         = metrics.NewRegisteredCounter("api.http.get.count", nil)
+	getFail          = metrics.NewRegisteredCounter("api.http.get.fail", nil)
+	getFileCount     = metrics.NewRegisteredCounter("api.http.get.file.count", nil)
+	getFileNotFound  = metrics.NewRegisteredCounter("api.http.get.file.notfound", nil)
+	getFileFail      = metrics.NewRegisteredCounter("api.http.get.file.fail", nil)
+	getFilesCount    = metrics.NewRegisteredCounter("api.http.get.files.count", nil)
+	getFilesFail     = metrics.NewRegisteredCounter("api.http.get.files.fail", nil)
+	getListCount     = metrics.NewRegisteredCounter("api.http.get.list.count", nil)
+	getListFail      = metrics.NewRegisteredCounter("api.http.get.list.fail", nil)
+	requestCount     = metrics.NewRegisteredCounter("http.request.count", nil)
+	htmlRequestCount = metrics.NewRegisteredCounter("http.request.html.count", nil)
+	jsonRequestCount = metrics.NewRegisteredCounter("http.request.json.count", nil)
+	requestTimer     = metrics.NewRegisteredResettingTimer("http.request.time", nil)
+)
+
 // ServerConfig is the basic configuration needed for the HTTP server and also
 // includes CORS settings.
 type ServerConfig struct {
@@ -89,18 +113,22 @@ type Request struct {
 // HandlePostRaw handles a POST request to a raw bzz-raw:/ URI, stores the request
 // body in swarm and returns the resulting storage key as a text/plain response
 func (s *Server) HandlePostRaw(w http.ResponseWriter, r *Request) {
+	postRawCount.Inc(1)
 	if r.uri.Path != "" {
+		postRawFail.Inc(1)
 		s.BadRequest(w, r, "raw POST request cannot contain a path")
 		return
 	}
 
 	if r.Header.Get("Content-Length") == "" {
+		postRawFail.Inc(1)
 		s.BadRequest(w, r, "missing Content-Length header in request")
 		return
 	}
 
 	key, err := s.api.Store(r.Body, r.ContentLength, nil)
 	if err != nil {
+		postRawFail.Inc(1)
 		s.Error(w, r, err)
 		return
 	}
@@ -117,8 +145,10 @@ func (s *Server) HandlePostRaw(w http.ResponseWriter, r *Request) {
 // existing manifest or to a new manifest under <path> and returns the
 // resulting manifest hash as a text/plain response
 func (s *Server) HandlePostFiles(w http.ResponseWriter, r *Request) {
+	postFilesCount.Inc(1)
 	contentType, params, err := mime.ParseMediaType(r.Header.Get("Content-Type"))
 	if err != nil {
+		postFilesFail.Inc(1)
 		s.BadRequest(w, r, err.Error())
 		return
 	}
@@ -127,12 +157,14 @@ func (s *Server) HandlePostFiles(w http.ResponseWriter, r *Request) {
 	if r.uri.Addr != "" {
 		key, err = s.api.Resolve(r.uri)
 		if err != nil {
+			postFilesFail.Inc(1)
 			s.Error(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
 			return
 		}
 	} else {
 		key, err = s.api.NewManifest()
 		if err != nil {
+			postFilesFail.Inc(1)
 			s.Error(w, r, err)
 			return
 		}
@@ -152,6 +184,7 @@ func (s *Server) HandlePostFiles(w http.ResponseWriter, r *Request) {
 		}
 	})
 	if err != nil {
+		postFilesFail.Inc(1)
 		s.Error(w, r, fmt.Errorf("error creating manifest: %s", err))
 		return
 	}
@@ -270,8 +303,10 @@ func (s *Server) handleDirectUpload(req *Request, mw *api.ManifestWriter) error
 // <path> from <manifest> and returns the resulting manifest hash as a
 // text/plain response
 func (s *Server) HandleDelete(w http.ResponseWriter, r *Request) {
+	deleteCount.Inc(1)
 	key, err := s.api.Resolve(r.uri)
 	if err != nil {
+		deleteFail.Inc(1)
 		s.Error(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
 		return
 	}
@@ -281,6 +316,7 @@ func (s *Server) HandleDelete(w http.ResponseWriter, r *Request) {
 		return mw.RemoveEntry(r.uri.Path)
 	})
 	if err != nil {
+		deleteFail.Inc(1)
 		s.Error(w, r, fmt.Errorf("error updating manifest: %s", err))
 		return
 	}
@@ -296,9 +332,11 @@ func (s *Server) HandleDelete(w http.ResponseWriter, r *Request) {
 // - bzz-hash://<key> and responds with the hash of the content stored
 //   at the given storage key as a text/plain response
 func (s *Server) HandleGet(w http.ResponseWriter, r *Request) {
+	getCount.Inc(1)
 	key, err := s.api.Resolve(r.uri)
 	if err != nil {
-		s.Error(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
+		getFail.Inc(1)
+		s.NotFound(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
 		return
 	}
 
@@ -307,6 +345,7 @@ func (s *Server) HandleGet(w http.ResponseWriter, r *Request) {
 	if r.uri.Path != "" {
 		walker, err := s.api.NewManifestWalker(key, nil)
 		if err != nil {
+			getFail.Inc(1)
 			s.BadRequest(w, r, fmt.Sprintf("%s is not a manifest", key))
 			return
 		}
@@ -335,6 +374,7 @@ func (s *Server) HandleGet(w http.ResponseWriter, r *Request) {
 			return api.SkipManifest
 		})
 		if entry == nil {
+			getFail.Inc(1)
 			s.NotFound(w, r, fmt.Errorf("Manifest entry could not be loaded"))
 			return
 		}
@@ -344,12 +384,13 @@ func (s *Server) HandleGet(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 {
+		getFail.Inc(1)
 		s.NotFound(w, r, fmt.Errorf("Root chunk not found %s: %s", key, err))
 		return
 	}
 
 	switch {
-	case r.uri.Raw():
+	case r.uri.Raw() || r.uri.DeprecatedRaw():
 		// allow the request to overwrite the content type using a query
 		// parameter
 		contentType := "application/octet-stream"
@@ -370,19 +411,23 @@ func (s *Server) HandleGet(w http.ResponseWriter, r *Request) {
 // header of "application/x-tar" and returns a tar stream of all files
 // contained in the manifest
 func (s *Server) HandleGetFiles(w http.ResponseWriter, r *Request) {
+	getFilesCount.Inc(1)
 	if r.uri.Path != "" {
+		getFilesFail.Inc(1)
 		s.BadRequest(w, r, "files request cannot contain a path")
 		return
 	}
 
 	key, err := s.api.Resolve(r.uri)
 	if err != nil {
-		s.Error(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
+		getFilesFail.Inc(1)
+		s.NotFound(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
 		return
 	}
 
 	walker, err := s.api.NewManifestWalker(key, nil)
 	if err != nil {
+		getFilesFail.Inc(1)
 		s.Error(w, r, err)
 		return
 	}
@@ -430,6 +475,7 @@ func (s *Server) HandleGetFiles(w http.ResponseWriter, r *Request) {
 		return nil
 	})
 	if err != nil {
+		getFilesFail.Inc(1)
 		s.logError("error generating tar stream: %s", err)
 	}
 }
@@ -438,6 +484,7 @@ func (s *Server) HandleGetFiles(w http.ResponseWriter, r *Request) {
 // a list of all files contained in <manifest> under <path> grouped into
 // common prefixes using "/" as a delimiter
 func (s *Server) HandleGetList(w http.ResponseWriter, r *Request) {
+	getListCount.Inc(1)
 	// ensure the root path has a trailing slash so that relative URLs work
 	if r.uri.Path == "" && !strings.HasSuffix(r.URL.Path, "/") {
 		http.Redirect(w, &r.Request, r.URL.Path+"/", http.StatusMovedPermanently)
@@ -446,13 +493,15 @@ func (s *Server) HandleGetList(w http.ResponseWriter, r *Request) {
 
 	key, err := s.api.Resolve(r.uri)
 	if err != nil {
-		s.Error(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
+		getListFail.Inc(1)
+		s.NotFound(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
 		return
 	}
 
 	list, err := s.getManifestList(key, r.uri.Path)
 
 	if err != nil {
+		getListFail.Inc(1)
 		s.Error(w, r, err)
 		return
 	}
@@ -470,6 +519,7 @@ func (s *Server) HandleGetList(w http.ResponseWriter, r *Request) {
 			List: &list,
 		})
 		if err != nil {
+			getListFail.Inc(1)
 			s.logError("error rendering list HTML: %s", err)
 		}
 		return
@@ -538,6 +588,7 @@ func (s *Server) getManifestList(key storage.Key, prefix string) (list api.Manif
 // HandleGetFile handles a GET request to bzz://<manifest>/<path> and responds
 // with the content of the file at <path> from the given <manifest>
 func (s *Server) HandleGetFile(w http.ResponseWriter, r *Request) {
+	getFileCount.Inc(1)
 	// ensure the root path has a trailing slash so that relative URLs work
 	if r.uri.Path == "" && !strings.HasSuffix(r.URL.Path, "/") {
 		http.Redirect(w, &r.Request, r.URL.Path+"/", http.StatusMovedPermanently)
@@ -546,7 +597,8 @@ func (s *Server) HandleGetFile(w http.ResponseWriter, r *Request) {
 
 	key, err := s.api.Resolve(r.uri)
 	if err != nil {
-		s.Error(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
+		getFileFail.Inc(1)
+		s.NotFound(w, r, fmt.Errorf("error resolving %s: %s", r.uri.Addr, err))
 		return
 	}
 
@@ -554,8 +606,10 @@ func (s *Server) HandleGetFile(w http.ResponseWriter, r *Request) {
 	if err != nil {
 		switch status {
 		case http.StatusNotFound:
+			getFileNotFound.Inc(1)
 			s.NotFound(w, r, err)
 		default:
+			getFileFail.Inc(1)
 			s.Error(w, r, err)
 		}
 		return
@@ -567,18 +621,20 @@ func (s *Server) HandleGetFile(w http.ResponseWriter, r *Request) {
 		list, err := s.getManifestList(key, r.uri.Path)
 
 		if err != nil {
+			getFileFail.Inc(1)
 			s.Error(w, r, err)
 			return
 		}
 
 		s.logDebug(fmt.Sprintf("Multiple choices! -->  %v", list))
 		//show a nice page links to available entries
-		ShowMultipleChoices(w, &r.Request, list)
+		ShowMultipleChoices(w, r, list)
 		return
 	}
 
 	// check the root chunk exists by retrieving the file's size
 	if _, err := reader.Size(nil); err != nil {
+		getFileNotFound.Inc(1)
 		s.NotFound(w, r, fmt.Errorf("File not found %s: %s", r.uri, err))
 		return
 	}
@@ -589,8 +645,30 @@ func (s *Server) HandleGetFile(w http.ResponseWriter, r *Request) {
 }
 
 func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if metrics.Enabled {
+		//The increment for request count and request timer themselves have a flag check
+		//for metrics.Enabled. Nevertheless, we introduce the if here because we
+		//are looking into the header just to see what request type it is (json/html).
+		//So let's take advantage and add all metrics related stuff here
+		requestCount.Inc(1)
+		defer requestTimer.UpdateSince(time.Now())
+		if r.Header.Get("Accept") == "application/json" {
+			jsonRequestCount.Inc(1)
+		} else {
+			htmlRequestCount.Inc(1)
+		}
+	}
 	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"))
 
+	if r.RequestURI == "/" && strings.Contains(r.Header.Get("Accept"), "text/html") {
+
+		err := landingPageTemplate.Execute(w, nil)
+		if err != nil {
+			s.logError("error rendering landing page: %s", err)
+		}
+		return
+	}
+
 	uri, err := api.Parse(strings.TrimLeft(r.URL.Path, "/"))
 	req := &Request{Request: *r, uri: uri}
 	if err != nil {
@@ -615,7 +693,7 @@ 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() || uri.DeprecatedRaw() {
-			ShowError(w, r, fmt.Sprintf("No PUT to %s allowed.", uri), http.StatusBadRequest)
+			ShowError(w, req, fmt.Sprintf("No PUT to %s allowed.", uri), http.StatusBadRequest)
 			return
 		} else {
 			s.HandlePostFiles(w, req)
@@ -623,7 +701,7 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 	case "DELETE":
 		if uri.Raw() || uri.DeprecatedRaw() {
-			ShowError(w, r, fmt.Sprintf("No DELETE to %s allowed.", uri), http.StatusBadRequest)
+			ShowError(w, req, fmt.Sprintf("No DELETE to %s allowed.", uri), http.StatusBadRequest)
 			return
 		}
 		s.HandleDelete(w, req)
@@ -647,7 +725,7 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		s.HandleGetFile(w, req)
 
 	default:
-		ShowError(w, r, fmt.Sprintf("Method "+r.Method+" is not supported.", uri), http.StatusMethodNotAllowed)
+		ShowError(w, req, fmt.Sprintf("Method "+r.Method+" is not supported.", uri), http.StatusMethodNotAllowed)
 
 	}
 }
@@ -679,13 +757,13 @@ func (s *Server) logError(format string, v ...interface{}) {
 }
 
 func (s *Server) BadRequest(w http.ResponseWriter, r *Request, reason string) {
-	ShowError(w, &r.Request, fmt.Sprintf("Bad request %s %s: %s", r.Method, r.uri, reason), http.StatusBadRequest)
+	ShowError(w, r, fmt.Sprintf("Bad request %s %s: %s", r.Request.Method, r.uri, reason), http.StatusBadRequest)
 }
 
 func (s *Server) Error(w http.ResponseWriter, r *Request, err error) {
-	ShowError(w, &r.Request, fmt.Sprintf("Error serving %s %s: %s", r.Method, r.uri, err), http.StatusInternalServerError)
+	ShowError(w, r, fmt.Sprintf("Error serving %s %s: %s", r.Request.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)
+	ShowError(w, r, fmt.Sprintf("NOT FOUND error serving %s %s: %s", r.Request.Method, r.uri, err), http.StatusNotFound)
 }
diff --git a/swarm/api/http/templates.go b/swarm/api/http/templates.go
index 189a99912..cd9d21289 100644
--- a/swarm/api/http/templates.go
+++ b/swarm/api/http/templates.go
@@ -70,3 +70,146 @@ var htmlListTemplate = template.Must(template.New("html-list").Funcs(template.Fu
   <hr>
 </body>
 `[1:]))
+
+var landingPageTemplate = template.Must(template.New("landingPage").Parse(`
+<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 Landing 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;
+				text-align: center;
+        /* 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 :: Welcome to Swarm</title>
+  </head>
+  <body>
+
+
+      <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>Welcome to Swarm</h1>
+        </div>
+      </header>
+
+			<script type="text/javascript">
+			function goToPage() {
+					var page = document.getElementById('page').value;
+					if (page == "") {
+						var page = "theswarm.eth"
+					}
+					var address = "/bzz:/" + page;
+					location.href = address;
+					console.log(address)
+			}
+			</script>
+				<content-body>
+
+	            <h1>Enter the hash or ENS of a Swarm-hosted file below:</h1>
+								<input type="text" id="page" size="64"/>
+								<input type="submit" value="submit" onclick="goToPage();" />
+
+				</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>
+
+  </body>
+</html>
+`[1:]))