1 files changed, 206 insertions, 0 deletions
diff --git a/vendor/github.com/mattermost/mattermost-server/model/incoming_webhook.go b/vendor/github.com/mattermost/mattermost-server/model/incoming_webhook.go
new file mode 100644
index 00000000..b38cfeec
--- /dev/null
+++ b/vendor/github.com/mattermost/mattermost-server/model/incoming_webhook.go
@@ -0,0 +1,206 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"net/http"
+	"regexp"
+)
+
+const (
+	DEFAULT_WEBHOOK_USERNAME = "webhook"
+)
+
+type IncomingWebhook struct {
+	Id          string `json:"id"`
+	CreateAt    int64  `json:"create_at"`
+	UpdateAt    int64  `json:"update_at"`
+	DeleteAt    int64  `json:"delete_at"`
+	UserId      string `json:"user_id"`
+	ChannelId   string `json:"channel_id"`
+	TeamId      string `json:"team_id"`
+	DisplayName string `json:"display_name"`
+	Description string `json:"description"`
+	Username    string `json:"username"`
+	IconURL     string `json:"icon_url"`
+}
+
+type IncomingWebhookRequest struct {
+	Text        string             `json:"text"`
+	Username    string             `json:"username"`
+	IconURL     string             `json:"icon_url"`
+	ChannelName string             `json:"channel"`
+	Props       StringInterface    `json:"props"`
+	Attachments []*SlackAttachment `json:"attachments"`
+	Type        string             `json:"type"`
+}
+
+func (o *IncomingWebhook) ToJson() string {
+	b, _ := json.Marshal(o)
+	return string(b)
+}
+
+func IncomingWebhookFromJson(data io.Reader) *IncomingWebhook {
+	var o *IncomingWebhook
+	json.NewDecoder(data).Decode(&o)
+	return o
+}
+
+func IncomingWebhookListToJson(l []*IncomingWebhook) string {
+	b, _ := json.Marshal(l)
+	return string(b)
+}
+
+func IncomingWebhookListFromJson(data io.Reader) []*IncomingWebhook {
+	var o []*IncomingWebhook
+	json.NewDecoder(data).Decode(&o)
+	return o
+}
+
+func (o *IncomingWebhook) IsValid() *AppError {
+
+	if len(o.Id) != 26 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.id.app_error", nil, "", http.StatusBadRequest)
+
+	}
+
+	if o.CreateAt == 0 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.create_at.app_error", nil, "id="+o.Id, http.StatusBadRequest)
+	}
+
+	if o.UpdateAt == 0 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.update_at.app_error", nil, "id="+o.Id, http.StatusBadRequest)
+	}
+
+	if len(o.UserId) != 26 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.user_id.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	if len(o.ChannelId) != 26 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.channel_id.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	if len(o.TeamId) != 26 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.team_id.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	if len(o.DisplayName) > 64 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.display_name.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	if len(o.Description) > 128 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.description.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	if len(o.Username) > 64 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.username.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	if len(o.IconURL) > 1024 {
+		return NewAppError("IncomingWebhook.IsValid", "model.incoming_hook.icon_url.app_error", nil, "", http.StatusBadRequest)
+	}
+
+	return nil
+}
+
+func (o *IncomingWebhook) PreSave() {
+	if o.Id == "" {
+		o.Id = NewId()
+	}
+
+	o.CreateAt = GetMillis()
+	o.UpdateAt = o.CreateAt
+}
+
+func (o *IncomingWebhook) PreUpdate() {
+	o.UpdateAt = GetMillis()
+}
+
+// escapeControlCharsFromPayload escapes control chars (\n, \t) from a byte slice.
+// Context:
+// JSON strings are not supposed to contain control characters such as \n, \t,
+// ... but some incoming webhooks might still send invalid JSON and we want to
+// try to handle that. An example invalid JSON string from an incoming webhook
+// might look like this (strings for both "text" and "fallback" attributes are
+// invalid JSON strings because they contain unescaped newlines and tabs):
+//  `{
+//    "text": "this is a test
+//						 that contains a newline and tabs",
+//    "attachments": [
+//      {
+//        "fallback": "Required plain-text summary of the attachment
+//										that contains a newline and tabs",
+//        "color": "#36a64f",
+//  			...
+//        "text": "Optional text that appears within the attachment
+//								 that contains a newline and tabs",
+//  			...
+//        "thumb_url": "http://example.com/path/to/thumb.png"
+//      }
+//    ]
+//  }`
+// This function will search for `"key": "value"` pairs, and escape \n, \t
+// from the value.
+func escapeControlCharsFromPayload(by []byte) []byte {
+	// we'll search for `"text": "..."` or `"fallback": "..."`, ...
+	keys := "text|fallback|pretext|author_name|title|value"
+
+	// the regexp reads like this:
+	// (?s): this flag let . match \n (default is false)
+	// "(keys)": we search for the keys defined above
+	// \s*:\s*: followed by 0..n spaces/tabs, a colon then 0..n spaces/tabs
+	// ": a double-quote
+	// (\\"|[^"])*: any number of times the `\"` string or any char but a double-quote
+	// ": a double-quote
+	r := `(?s)"(` + keys + `)"\s*:\s*"(\\"|[^"])*"`
+	re := regexp.MustCompile(r)
+
+	// the function that will escape \n and \t on the regexp matches
+	repl := func(b []byte) []byte {
+		if bytes.Contains(b, []byte("\n")) {
+			b = bytes.Replace(b, []byte("\n"), []byte("\\n"), -1)
+		}
+		if bytes.Contains(b, []byte("\t")) {
+			b = bytes.Replace(b, []byte("\t"), []byte("\\t"), -1)
+		}
+
+		return b
+	}
+
+	return re.ReplaceAllFunc(by, repl)
+}
+
+func decodeIncomingWebhookRequest(by []byte) (*IncomingWebhookRequest, error) {
+	decoder := json.NewDecoder(bytes.NewReader(by))
+	var o IncomingWebhookRequest
+	err := decoder.Decode(&o)
+	if err == nil {
+		return &o, nil
+	} else {
+		return nil, err
+	}
+}
+
+func IncomingWebhookRequestFromJson(data io.Reader) (*IncomingWebhookRequest, *AppError) {
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(data)
+	by := buf.Bytes()
+
+	// Try to decode the JSON data. Only if it fails, try to escape control
+	// characters from the strings contained in the JSON data.
+	o, err := decodeIncomingWebhookRequest(by)
+	if err != nil {
+		o, err = decodeIncomingWebhookRequest(escapeControlCharsFromPayload(by))
+		if err != nil {
+			return nil, NewAppError("IncomingWebhookRequestFromJson", "Unable to parse incoming data", nil, err.Error(), http.StatusBadRequest)
+		}
+	}
+
+	o.Attachments = StringifySlackFieldValue(o.Attachments)
+
+	return o, nil
+}