5 files changed, 487 insertions, 0 deletions
diff --git a/vendor/gopkg.in/airbrake/gobrake.v2/LICENSE b/vendor/gopkg.in/airbrake/gobrake.v2/LICENSE
new file mode 100644
index 00000000..d64c10ef
--- /dev/null
+++ b/vendor/gopkg.in/airbrake/gobrake.v2/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2014 The Gobrake Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/gopkg.in/airbrake/gobrake.v2/gobrake.go b/vendor/gopkg.in/airbrake/gobrake.v2/gobrake.go
new file mode 100644
index 00000000..23efe414
--- /dev/null
+++ b/vendor/gopkg.in/airbrake/gobrake.v2/gobrake.go
@@ -0,0 +1,16 @@
+package gobrake
+
+import (
+	"log"
+	"os"
+)
+
+var logger *log.Logger
+
+func init() {
+	SetLogger(log.New(os.Stderr, "gobrake: ", log.LstdFlags))
+}
+
+func SetLogger(l *log.Logger) {
+	logger = l
+}
diff --git a/vendor/gopkg.in/airbrake/gobrake.v2/notice.go b/vendor/gopkg.in/airbrake/gobrake.v2/notice.go
new file mode 100644
index 00000000..06bc771a
--- /dev/null
+++ b/vendor/gopkg.in/airbrake/gobrake.v2/notice.go
@@ -0,0 +1,105 @@
+package gobrake
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"path/filepath"
+	"runtime"
+)
+
+var defaultContext map[string]interface{}
+
+func getDefaultContext() map[string]interface{} {
+	if defaultContext != nil {
+		return defaultContext
+	}
+
+	defaultContext = map[string]interface{}{
+		"notifier": map[string]interface{}{
+			"name":    "gobrake",
+			"version": "2.0.4",
+			"url":     "https://github.com/airbrake/gobrake",
+		},
+
+		"language":     runtime.Version(),
+		"os":           runtime.GOOS,
+		"architecture": runtime.GOARCH,
+	}
+	if s, err := os.Hostname(); err == nil {
+		defaultContext["hostname"] = s
+	}
+	if s := os.Getenv("GOPATH"); s != "" {
+		list := filepath.SplitList(s)
+		// TODO: multiple root dirs?
+		defaultContext["rootDirectory"] = list[0]
+	}
+	return defaultContext
+}
+
+type Error struct {
+	Type      string       `json:"type"`
+	Message   string       `json:"message"`
+	Backtrace []StackFrame `json:"backtrace"`
+}
+
+type Notice struct {
+	Errors  []Error                `json:"errors"`
+	Context map[string]interface{} `json:"context"`
+	Env     map[string]interface{} `json:"environment"`
+	Session map[string]interface{} `json:"session"`
+	Params  map[string]interface{} `json:"params"`
+}
+
+func (n *Notice) String() string {
+	if len(n.Errors) == 0 {
+		return "Notice<no errors>"
+	}
+	e := n.Errors[0]
+	return fmt.Sprintf("Notice<%s: %s>", e.Type, e.Message)
+}
+
+func NewNotice(e interface{}, req *http.Request, depth int) *Notice {
+	notice := &Notice{
+		Errors: []Error{{
+			Type:      fmt.Sprintf("%T", e),
+			Message:   fmt.Sprint(e),
+			Backtrace: stack(depth),
+		}},
+		Context: map[string]interface{}{},
+		Env:     map[string]interface{}{},
+		Session: map[string]interface{}{},
+		Params:  map[string]interface{}{},
+	}
+
+	for k, v := range getDefaultContext() {
+		notice.Context[k] = v
+	}
+
+	if req != nil {
+		notice.Context["url"] = req.URL.String()
+		if ua := req.Header.Get("User-Agent"); ua != "" {
+			notice.Context["userAgent"] = ua
+		}
+
+		for k, v := range req.Header {
+			if len(v) == 1 {
+				notice.Env[k] = v[0]
+			} else {
+				notice.Env[k] = v
+			}
+		}
+
+		if err := req.ParseForm(); err == nil {
+			for k, v := range req.Form {
+				if len(v) == 1 {
+					notice.Params[k] = v[0]
+				} else {
+					notice.Params[k] = v
+				}
+			}
+		}
+	}
+
+	return notice
+}
diff --git a/vendor/gopkg.in/airbrake/gobrake.v2/notifier.go b/vendor/gopkg.in/airbrake/gobrake.v2/notifier.go
new file mode 100644
index 00000000..e409321f
--- /dev/null
+++ b/vendor/gopkg.in/airbrake/gobrake.v2/notifier.go
@@ -0,0 +1,280 @@
+package gobrake // import "gopkg.in/airbrake/gobrake.v2"
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+)
+
+const defaultAirbrakeHost = "https://airbrake.io"
+const waitTimeout = 5 * time.Second
+const httpStatusTooManyRequests = 429
+
+var (
+	errClosed      = errors.New("gobrake: notifier is closed")
+	errRateLimited = errors.New("gobrake: rate limited")
+)
+
+var httpClient = &http.Client{
+	Transport: &http.Transport{
+		Proxy: http.ProxyFromEnvironment,
+		Dial: (&net.Dialer{
+			Timeout:   15 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}).Dial,
+		TLSHandshakeTimeout: 10 * time.Second,
+		TLSClientConfig: &tls.Config{
+			ClientSessionCache: tls.NewLRUClientSessionCache(1024),
+		},
+		MaxIdleConnsPerHost:   10,
+		ResponseHeaderTimeout: 10 * time.Second,
+	},
+	Timeout: 10 * time.Second,
+}
+
+var buffers = sync.Pool{
+	New: func() interface{} {
+		return new(bytes.Buffer)
+	},
+}
+
+type filter func(*Notice) *Notice
+
+type Notifier struct {
+	// http.Client that is used to interact with Airbrake API.
+	Client *http.Client
+
+	projectId       int64
+	projectKey      string
+	createNoticeURL string
+
+	filters []filter
+
+	wg       sync.WaitGroup
+	noticeCh chan *Notice
+	closed   chan struct{}
+}
+
+func NewNotifier(projectId int64, projectKey string) *Notifier {
+	n := &Notifier{
+		Client: httpClient,
+
+		projectId:       projectId,
+		projectKey:      projectKey,
+		createNoticeURL: getCreateNoticeURL(defaultAirbrakeHost, projectId, projectKey),
+
+		filters: []filter{noticeBacktraceFilter},
+
+		noticeCh: make(chan *Notice, 1000),
+		closed:   make(chan struct{}),
+	}
+	for i := 0; i < 10; i++ {
+		go n.worker()
+	}
+	return n
+}
+
+// Sets Airbrake host name. Default is https://airbrake.io.
+func (n *Notifier) SetHost(h string) {
+	n.createNoticeURL = getCreateNoticeURL(h, n.projectId, n.projectKey)
+}
+
+// AddFilter adds filter that can modify or ignore notice.
+func (n *Notifier) AddFilter(fn filter) {
+	n.filters = append(n.filters, fn)
+}
+
+// Notify notifies Airbrake about the error.
+func (n *Notifier) Notify(e interface{}, req *http.Request) {
+	notice := n.Notice(e, req, 1)
+	n.SendNoticeAsync(notice)
+}
+
+// Notice returns Aibrake notice created from error and request. depth
+// determines which call frame to use when constructing backtrace.
+func (n *Notifier) Notice(err interface{}, req *http.Request, depth int) *Notice {
+	return NewNotice(err, req, depth+3)
+}
+
+type sendResponse struct {
+	Id string `json:"id"`
+}
+
+// SendNotice sends notice to Airbrake.
+func (n *Notifier) SendNotice(notice *Notice) (string, error) {
+	for _, fn := range n.filters {
+		notice = fn(notice)
+		if notice == nil {
+			// Notice is ignored.
+			return "", nil
+		}
+	}
+
+	buf := buffers.Get().(*bytes.Buffer)
+	defer buffers.Put(buf)
+
+	buf.Reset()
+	if err := json.NewEncoder(buf).Encode(notice); err != nil {
+		return "", err
+	}
+
+	resp, err := n.Client.Post(n.createNoticeURL, "application/json", buf)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	buf.Reset()
+	_, err = buf.ReadFrom(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	if resp.StatusCode != http.StatusCreated {
+		if resp.StatusCode == httpStatusTooManyRequests {
+			return "", errRateLimited
+		}
+		err := fmt.Errorf("gobrake: got response status=%q, wanted 201 CREATED", resp.Status)
+		return "", err
+	}
+
+	var sendResp sendResponse
+	err = json.NewDecoder(buf).Decode(&sendResp)
+	if err != nil {
+		return "", err
+	}
+
+	return sendResp.Id, nil
+}
+
+func (n *Notifier) sendNotice(notice *Notice) {
+	if _, err := n.SendNotice(notice); err != nil && err != errRateLimited {
+		logger.Printf("gobrake failed reporting notice=%q: %s", notice, err)
+	}
+	n.wg.Done()
+}
+
+// SendNoticeAsync acts as SendNotice, but sends notice asynchronously
+// and pending notices can be flushed with Flush.
+func (n *Notifier) SendNoticeAsync(notice *Notice) {
+	select {
+	case <-n.closed:
+		return
+	default:
+	}
+
+	n.wg.Add(1)
+	select {
+	case n.noticeCh <- notice:
+	default:
+		n.wg.Done()
+		logger.Printf(
+			"notice=%q is ignored, because queue is full (len=%d)",
+			notice, len(n.noticeCh),
+		)
+	}
+}
+
+func (n *Notifier) worker() {
+	for {
+		select {
+		case notice := <-n.noticeCh:
+			n.sendNotice(notice)
+		case <-n.closed:
+			select {
+			case notice := <-n.noticeCh:
+				n.sendNotice(notice)
+			default:
+				return
+			}
+		}
+	}
+}
+
+// NotifyOnPanic notifies Airbrake about the panic and should be used
+// with defer statement.
+func (n *Notifier) NotifyOnPanic() {
+	if v := recover(); v != nil {
+		notice := n.Notice(v, nil, 3)
+		n.SendNotice(notice)
+		panic(v)
+	}
+}
+
+// Flush waits for pending requests to finish.
+func (n *Notifier) Flush() {
+	n.waitTimeout(waitTimeout)
+}
+
+// Deprecated. Use CloseTimeout instead.
+func (n *Notifier) WaitAndClose(timeout time.Duration) error {
+	return n.CloseTimeout(timeout)
+}
+
+// CloseTimeout waits for pending requests to finish and then closes the notifier.
+func (n *Notifier) CloseTimeout(timeout time.Duration) error {
+	select {
+	case <-n.closed:
+	default:
+		close(n.closed)
+	}
+	return n.waitTimeout(timeout)
+}
+
+func (n *Notifier) waitTimeout(timeout time.Duration) error {
+	done := make(chan struct{})
+	go func() {
+		n.wg.Wait()
+		close(done)
+	}()
+
+	select {
+	case <-done:
+		return nil
+	case <-time.After(timeout):
+		return fmt.Errorf("Wait timed out after %s", timeout)
+	}
+}
+
+func (n *Notifier) Close() error {
+	return n.CloseTimeout(waitTimeout)
+}
+
+func getCreateNoticeURL(host string, projectId int64, key string) string {
+	return fmt.Sprintf(
+		"%s/api/v3/projects/%d/notices?key=%s",
+		host, projectId, key,
+	)
+}
+
+func noticeBacktraceFilter(notice *Notice) *Notice {
+	v, ok := notice.Context["rootDirectory"]
+	if !ok {
+		return notice
+	}
+
+	dir, ok := v.(string)
+	if !ok {
+		return notice
+	}
+
+	dir = filepath.Join(dir, "src")
+	for i := range notice.Errors {
+		replaceRootDirectory(notice.Errors[i].Backtrace, dir)
+	}
+	return notice
+}
+
+func replaceRootDirectory(backtrace []StackFrame, rootDir string) {
+	for i := range backtrace {
+		backtrace[i].File = strings.Replace(backtrace[i].File, rootDir, "[PROJECT_ROOT]", 1)
+	}
+}
diff --git a/vendor/gopkg.in/airbrake/gobrake.v2/util.go b/vendor/gopkg.in/airbrake/gobrake.v2/util.go
new file mode 100644
index 00000000..c05c0331
--- /dev/null
+++ b/vendor/gopkg.in/airbrake/gobrake.v2/util.go
@@ -0,0 +1,59 @@
+package gobrake
+
+import (
+	"runtime"
+	"strings"
+)
+
+func stackFilter(packageName, funcName string, file string, line int) bool {
+	return packageName == "runtime" && funcName == "panic"
+}
+
+type StackFrame struct {
+	File string `json:"file"`
+	Line int    `json:"line"`
+	Func string `json:"function"`
+}
+
+func stack(depth int) []StackFrame {
+	stack := []StackFrame{}
+	for i := depth; ; i++ {
+		pc, file, line, ok := runtime.Caller(i)
+		if !ok {
+			break
+		}
+		packageName, funcName := packageFuncName(pc)
+		if stackFilter(packageName, funcName, file, line) {
+			stack = stack[:0]
+			continue
+		}
+		stack = append(stack, StackFrame{
+			File: file,
+			Line: line,
+			Func: funcName,
+		})
+	}
+
+	return stack
+}
+
+func packageFuncName(pc uintptr) (string, string) {
+	f := runtime.FuncForPC(pc)
+	if f == nil {
+		return "", ""
+	}
+
+	packageName := ""
+	funcName := f.Name()
+
+	if ind := strings.LastIndex(funcName, "/"); ind > 0 {
+		packageName += funcName[:ind+1]
+		funcName = funcName[ind+1:]
+	}
+	if ind := strings.Index(funcName, "."); ind > 0 {
+		packageName += funcName[:ind]
+		funcName = funcName[ind+1:]
+	}
+
+	return packageName, funcName
+}