From 56e7bd01ca09ad52b0c4f48f146a20a4f1b78696 Mon Sep 17 00:00:00 2001 From: Wim Date: Sat, 5 Aug 2023 20:43:19 +0200 Subject: Update dependencies and remove old matterclient lib (#2067) --- .../mattermost-server/v5/model/link_metadata.go | 193 --------------------- 1 file changed, 193 deletions(-) delete mode 100644 vendor/github.com/mattermost/mattermost-server/v5/model/link_metadata.go (limited to 'vendor/github.com/mattermost/mattermost-server/v5/model/link_metadata.go') 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()) -} -- cgit v1.2.3