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package main
import "fmt"
import "database/sql"
import _ "github.com/lib/pq"
func WriteObjectToCache(db *sql.DB, obj ObjectBase) ObjectBase {
if len(obj.Attachment) > 0 {
if obj.Preview.Href != "" {
WritePreviewToCache(db, *obj.Preview)
}
for i, _ := range obj.Attachment {
WriteAttachmentToCache(db, obj.Attachment[i])
WriteActivitytoCacheWithAttachment(db, obj, obj.Attachment[i], *obj.Preview)
}
} else {
WriteActivitytoCache(db, obj)
}
WriteObjectReplyToCache(db, obj)
return obj
}
func WriteActivitytoCache(db *sql.DB, obj ObjectBase) {
obj.Name = EscapeString(obj.Name)
obj.Content = EscapeString(obj.Content)
obj.AttributedTo = EscapeString(obj.AttributedTo)
query := `select id from cacheactivitystream where id=$1`
rows, err := db.Query(query, obj.Id)
CheckError(err, "error selecting obj id from cache")
var id string
defer rows.Close()
rows.Next()
rows.Scan(&id)
if id != "" {
return
}
query = `insert into cacheactivitystream (id, type, name, content, published, updated, attributedto, actor) values ($1, $2, $3, $4, $5, $6, $7, $8)`
_, e := db.Exec(query, obj.Id ,obj.Type, obj.Name, obj.Content, obj.Published, obj.Published, obj.AttributedTo, obj.Actor.Id)
if e != nil{
fmt.Println("error inserting new activity cache")
panic(e)
}
}
func WriteActivitytoCacheWithAttachment(db *sql.DB, obj ObjectBase, attachment ObjectBase, preview NestedObjectBase) {
obj.Name = EscapeString(obj.Name)
obj.Content = EscapeString(obj.Content)
obj.AttributedTo = EscapeString(obj.AttributedTo)
query := `select id from cacheactivitystream where id=$1`
rows, err := db.Query(query, obj.Id)
CheckError(err, "error selecting activity with attachment obj id cache")
var id string
defer rows.Close()
rows.Next()
rows.Scan(&id)
if id != "" {
return
}
query = `insert into cacheactivitystream (id, type, name, content, attachment, preview, published, updated, attributedto, actor) values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)`
_, e := db.Exec(query, obj.Id ,obj.Type, obj.Name, obj.Content, attachment.Id, preview.Id, obj.Published, obj.Published, obj.AttributedTo, obj.Actor.Id)
if e != nil{
fmt.Println("error inserting new activity with attachment cache")
panic(e)
}
}
func WriteAttachmentToCache(db *sql.DB, obj ObjectBase) {
query := `select id from cacheactivitystream where id=$1`
rows, err := db.Query(query, obj.Id)
CheckError(err, "error selecting attachment obj id cache")
var id string
defer rows.Close()
rows.Next()
rows.Scan(&id)
if id != "" {
return
}
query = `insert into cacheactivitystream (id, type, name, href, published, updated, attributedTo, mediatype, size) values ($1, $2, $3, $4, $5, $6, $7, $8, $9)`
_, e := db.Exec(query, obj.Id ,obj.Type, obj.Name, obj.Href, obj.Published, obj.Published, obj.AttributedTo, obj.MediaType, obj.Size)
if e != nil{
fmt.Println("error inserting new attachment cache")
panic(e)
}
}
func WritePreviewToCache(db *sql.DB, obj NestedObjectBase) {
query := `select id from cacheactivitystream where id=$1`
rows, err := db.Query(query, obj.Id)
CheckError(err, "error selecting preview obj id cache")
var id string
defer rows.Close()
rows.Next()
rows.Scan(&id)
if id != "" {
return
}
query = `insert into cacheactivitystream (id, type, name, href, published, updated, attributedTo, mediatype, size) values ($1, $2, $3, $4, $5, $6, $7, $8, $9)`
_, e := db.Exec(query, obj.Id ,obj.Type, obj.Name, obj.Href, obj.Published, obj.Published, obj.AttributedTo, obj.MediaType, obj.Size)
if e != nil{
fmt.Println("error inserting new preview cache")
panic(e)
}
}
func GetObjectFromCache(db *sql.DB, id string) Collection {
var nColl Collection
var result []ObjectBase
query := `select id, name, content, type, published, updated, attributedto, attachment, preview, actor from cacheactivitystream where id=$1 and type='Note'`
rows, err := db.Query(query, id)
CheckError(err, "error query object from db cache")
defer rows.Close()
for rows.Next(){
var post ObjectBase
var actor Actor
var attachID string
var previewID string
err = rows.Scan(&post.Id, &post.Name, &post.Content, &post.Type, &post.Published, &post.Updated, &post.AttributedTo, &attachID, &previewID, &actor.Id)
CheckError(err, "error scan object into post struct cache")
post.Actor = &actor
var postCnt int
var imgCnt int
post.Replies, postCnt, imgCnt = GetObjectRepliesCache(db, post)
post.Replies.TotalItems, post.Replies.TotalImgs = GetObjectRepliesCacheCount(db, post)
post.Replies.TotalItems = post.Replies.TotalItems + postCnt
post.Replies.TotalImgs = post.Replies.TotalImgs + imgCnt
post.Attachment = GetObjectAttachmentCache(db, attachID)
post.Preview = GetObjectPreviewCache(db, previewID)
result = append(result, post)
}
nColl.OrderedItems = result
return nColl
}
func WriteObjectReplyToCache(db *sql.DB, obj ObjectBase) {
for i, e := range obj.InReplyTo {
if(i == 0 || IsReplyInThread(db, obj.InReplyTo[0].Id, e.Id)){
query := `select id from cachereplies where id=$1`
rows, err := db.Query(query, obj.Id)
CheckError(err, "error selecting obj id cache reply")
var id string
defer rows.Close()
rows.Next()
rows.Scan(&id)
if id != "" {
return
}
query = `insert into cachereplies (id, inreplyto) values ($1, $2)`
_, err = db.Exec(query, obj.Id, e.Id)
if err != nil{
fmt.Println("error inserting replies cache")
panic(err)
}
}
}
}
func GetObjectRepliesCache(db *sql.DB, parent ObjectBase) (*CollectionBase, int, int) {
var nColl CollectionBase
var result []ObjectBase
query := `select id, name, content, type, published, attributedto, attachment, preview, actor from cacheactivitystream WHERE id in (select id from cachereplies where inreplyto=$1) and type='Note' order by published asc`
rows, err := db.Query(query, parent.Id)
CheckError(err, "error with replies db query")
defer rows.Close()
for rows.Next() {
var post ObjectBase
var actor Actor
var attachID string
var previewID string
post.InReplyTo = append(post.InReplyTo, parent)
err = rows.Scan(&post.Id, &post.Name, &post.Content, &post.Type, &post.Published, &post.AttributedTo, &attachID, &previewID, &actor.Id)
CheckError(err, "error with replies db scan")
post.Actor = &actor
var postCnt int
var imgCnt int
post.Replies, postCnt, imgCnt = GetObjectRepliesRepliesCache(db, post)
post.Replies.TotalItems, post.Replies.TotalImgs = GetObjectRepliesCacheCount(db, post)
post.Replies.TotalItems = post.Replies.TotalItems + postCnt
post.Replies.TotalImgs = post.Replies.TotalImgs + imgCnt
post.Attachment = GetObjectAttachmentCache(db, attachID)
post.Preview = GetObjectPreviewCache(db, previewID)
result = append(result, post)
}
nColl.OrderedItems = result
remoteCollection := GetObjectRepliesRemote(db, parent)
var postc int
var imgc int
for _, e := range remoteCollection.OrderedItems {
nColl.OrderedItems = append(nColl.OrderedItems, e)
postc = postc + 1
if len(e.Attachment) > 0 {
imgc = imgc + 1
}
}
return &nColl, postc, imgc
}
func GetObjectRepliesRepliesCache(db *sql.DB, parent ObjectBase) (*CollectionBase, int, int) {
var nColl CollectionBase
var result []ObjectBase
query := `select id, name, content, type, published, attributedto, attachment, preview, actor from cacheactivitystream where id in (select id from cachereplies where inreplyto=$1) and type='Note' order by published asc`
rows, err := db.Query(query, parent.Id)
CheckError(err, "error with replies replies cache query")
defer rows.Close()
for rows.Next() {
var post ObjectBase
var actor Actor
var attachID string
var previewID string
post.InReplyTo = append(post.InReplyTo, parent)
err = rows.Scan(&post.Id, &post.Name, &post.Content, &post.Type, &post.Published, &post.AttributedTo, &attachID, &previewID, &actor.Id)
CheckError(err, "error with replies replies cache scan")
post.Actor = &actor
post.Attachment = GetObjectAttachmentCache(db, attachID)
post.Preview = GetObjectPreviewCache(db, previewID)
result = append(result, post)
}
remoteCollection := GetObjectRepliesRemote(db, parent)
var postc int
var imgc int
for _, e := range remoteCollection.OrderedItems {
nColl.OrderedItems = append(nColl.OrderedItems, e)
postc = postc + 1
if len(e.Attachment) > 0 {
imgc = imgc + 1
}
}
nColl.OrderedItems = result
return &nColl, postc, imgc
}
func GetObjectRepliesCacheCount(db *sql.DB, parent ObjectBase) (int, int) {
var countId int
var countImg int
query := `select count(id) from replies where inreplyto=$1 and id in (select id from activitystream where type='Note')`
rows, err := db.Query(query, parent.Id)
CheckError(err, "error with replies count db query")
defer rows.Close()
rows.Next()
rows.Scan(&countId)
query = `select count(attachment) from activitystream where id in (select id from replies where inreplyto=$1) and attachment != ''`
rows, err = db.Query(query, parent.Id)
CheckError(err, "error with select attachment count db query")
defer rows.Close()
rows.Next()
rows.Scan(&countImg)
return countId, countImg
}
func GetObjectAttachmentCache(db *sql.DB, id string) []ObjectBase {
var attachments []ObjectBase
query := `select id, type, name, href, mediatype, size, published from cacheactivitystream where id=$1`
rows, err := db.Query(query, id)
CheckError(err, "could not select object attachment query")
defer rows.Close()
for rows.Next() {
var attachment = new(ObjectBase)
err = rows.Scan(&attachment.Id, &attachment.Type, &attachment.Name, &attachment.Href, &attachment.MediaType, &attachment.Size, &attachment.Published)
if err !=nil{
fmt.Println("error with attachment db query")
panic(err)
}
attachments = append(attachments, *attachment)
}
return attachments
}
func GetObjectPreviewCache(db *sql.DB, id string) *NestedObjectBase {
var preview NestedObjectBase
query := `select id, type, name, href, mediatype, size, published from cacheactivitystream where id=$1`
rows, err := db.Query(query, id)
CheckError(err, "could not select object preview query")
defer rows.Close()
for rows.Next() {
err = rows.Scan(&preview.Id, &preview.Type, &preview.Name, &preview.Href, &preview.MediaType, &preview.Size, &preview.Published)
}
return &preview
}
func DeleteObjectFromCache(db *sql.DB, id string) {
query := `select attachment, preview from cacheactivitystream where id=$1 `
rows, err := db.Query(query, id)
CheckError(err, "could not select cache activitystream")
var attachment string
var preview string
defer rows.Close()
rows.Next()
rows.Scan(&attachment, &preview)
query = `delete from cacheactivitystream where id=$1`
_, err = db.Exec(query, attachment)
CheckError(err, "could not delete attachmet cache activitystream")
query = `delete from cacheactivitystream where id=$1`
_, err = db.Exec(query, preview)
CheckError(err, "could not delete preview cache activitystream")
query = `delete from cacheactivitystream where id=$1`
_, err = db.Exec(query, id)
CheckError(err, "could not delete object cache activitystream")
query = `delete from cachereplies where id=$1`
_, err = db.Exec(query, id)
CheckError(err, "could not delete cache replies activitystream")
}
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