1 files changed, 0 insertions, 193 deletions
diff --git a/vendor/github.com/mattermost/mattermost-server/v5/model/link_metadata.go b/vendor/github.com/mattermost/mattermost-server/v5/model/link_metadata.go
deleted file mode 100644
index 6c3e0bd8..00000000
--- a/vendor/github.com/mattermost/mattermost-server/v5/model/link_metadata.go
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
-// See LICENSE.txt for license information.
-
-package model
-
-import (
-	"encoding/binary"
-	"encoding/json"
-	"fmt"
-	"hash/fnv"
-	"net/http"
-	"time"
-	"unicode/utf8"
-
-	"github.com/dyatlov/go-opengraph/opengraph"
-)
-
-const (
-	LINK_METADATA_TYPE_IMAGE     LinkMetadataType = "image"
-	LINK_METADATA_TYPE_NONE      LinkMetadataType = "none"
-	LINK_METADATA_TYPE_OPENGRAPH LinkMetadataType = "opengraph"
-	MAX_IMAGES                   int              = 5
-)
-
-type LinkMetadataType string
-
-// LinkMetadata stores arbitrary data about a link posted in a message. This includes dimensions of linked images
-// and OpenGraph metadata.
-type LinkMetadata struct {
-	// Hash is a value computed from the URL and Timestamp for use as a primary key in the database.
-	Hash int64
-
-	URL       string
-	Timestamp int64
-	Type      LinkMetadataType
-
-	// Data is the actual metadata for the link. It should contain data of one of the following types:
-	// - *model.PostImage if the linked content is an image
-	// - *opengraph.OpenGraph if the linked content is an HTML document
-	// - nil if the linked content has no metadata
-	Data interface{}
-}
-
-// truncateText ensure string is 300 chars, truncate and add ellipsis
-// if it was bigger.
-func truncateText(original string) string {
-	if utf8.RuneCountInString(original) > 300 {
-		return fmt.Sprintf("%.300s[...]", original)
-	}
-	return original
-}
-
-func firstNImages(images []*opengraph.Image, maxImages int) []*opengraph.Image {
-	if maxImages < 0 { // dont break stuff, if it's weird, go for sane defaults
-		maxImages = MAX_IMAGES
-	}
-	numImages := len(images)
-	if numImages > maxImages {
-		return images[0:maxImages]
-	}
-	return images
-}
-
-// TruncateOpenGraph ensure OpenGraph metadata doesn't grow too big by
-// shortening strings, trimming fields and reducing the number of
-// images.
-func TruncateOpenGraph(ogdata *opengraph.OpenGraph) *opengraph.OpenGraph {
-	if ogdata != nil {
-		empty := &opengraph.OpenGraph{}
-		ogdata.Title = truncateText(ogdata.Title)
-		ogdata.Description = truncateText(ogdata.Description)
-		ogdata.SiteName = truncateText(ogdata.SiteName)
-		ogdata.Article = empty.Article
-		ogdata.Book = empty.Book
-		ogdata.Profile = empty.Profile
-		ogdata.Determiner = empty.Determiner
-		ogdata.Locale = empty.Locale
-		ogdata.LocalesAlternate = empty.LocalesAlternate
-		ogdata.Images = firstNImages(ogdata.Images, MAX_IMAGES)
-		ogdata.Audios = empty.Audios
-		ogdata.Videos = empty.Videos
-	}
-	return ogdata
-}
-
-func (o *LinkMetadata) PreSave() {
-	o.Hash = GenerateLinkMetadataHash(o.URL, o.Timestamp)
-}
-
-func (o *LinkMetadata) IsValid() *AppError {
-	if o.URL == "" {
-		return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.url.app_error", nil, "", http.StatusBadRequest)
-	}
-
-	if o.Timestamp == 0 || !isRoundedToNearestHour(o.Timestamp) {
-		return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.timestamp.app_error", nil, "", http.StatusBadRequest)
-	}
-
-	switch o.Type {
-	case LINK_METADATA_TYPE_IMAGE:
-		if o.Data == nil {
-			return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.data.app_error", nil, "", http.StatusBadRequest)
-		}
-
-		if _, ok := o.Data.(*PostImage); !ok {
-			return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.data_type.app_error", nil, "", http.StatusBadRequest)
-		}
-	case LINK_METADATA_TYPE_NONE:
-		if o.Data != nil {
-			return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.data_type.app_error", nil, "", http.StatusBadRequest)
-		}
-	case LINK_METADATA_TYPE_OPENGRAPH:
-		if o.Data == nil {
-			return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.data.app_error", nil, "", http.StatusBadRequest)
-		}
-
-		if _, ok := o.Data.(*opengraph.OpenGraph); !ok {
-			return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.data_type.app_error", nil, "", http.StatusBadRequest)
-		}
-	default:
-		return NewAppError("LinkMetadata.IsValid", "model.link_metadata.is_valid.type.app_error", nil, "", http.StatusBadRequest)
-	}
-
-	return nil
-}
-
-// DeserializeDataToConcreteType converts o.Data from JSON into properly structured data. This is intended to be used
-// after getting a LinkMetadata object that has been stored in the database.
-func (o *LinkMetadata) DeserializeDataToConcreteType() error {
-	var b []byte
-	switch t := o.Data.(type) {
-	case []byte:
-		// MySQL uses a byte slice for JSON
-		b = t
-	case string:
-		// Postgres uses a string for JSON
-		b = []byte(t)
-	}
-
-	if b == nil {
-		// Data doesn't need to be fixed
-		return nil
-	}
-
-	var data interface{}
-	var err error
-
-	switch o.Type {
-	case LINK_METADATA_TYPE_IMAGE:
-		image := &PostImage{}
-
-		err = json.Unmarshal(b, &image)
-
-		data = image
-	case LINK_METADATA_TYPE_OPENGRAPH:
-		og := &opengraph.OpenGraph{}
-
-		json.Unmarshal(b, &og)
-
-		data = og
-	}
-
-	if err != nil {
-		return err
-	}
-
-	o.Data = data
-
-	return nil
-}
-
-// FloorToNearestHour takes a timestamp (in milliseconds) and returns it rounded to the previous hour in UTC.
-func FloorToNearestHour(ms int64) int64 {
-	t := time.Unix(0, ms*int64(1000*1000)).UTC()
-
-	return time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), 0, 0, 0, time.UTC).UnixNano() / int64(time.Millisecond)
-}
-
-// isRoundedToNearestHour returns true if the given timestamp (in milliseconds) has been rounded to the nearest hour in UTC.
-func isRoundedToNearestHour(ms int64) bool {
-	return FloorToNearestHour(ms) == ms
-}
-
-// GenerateLinkMetadataHash generates a unique hash for a given URL and timestamp for use as a database key.
-func GenerateLinkMetadataHash(url string, timestamp int64) int64 {
-	hash := fnv.New32()
-
-	// Note that we ignore write errors here because the Hash interface says that its Write will never return an error
-	binary.Write(hash, binary.LittleEndian, timestamp)
-	hash.Write([]byte(url))
-
-	return int64(hash.Sum32())
-}