switch to only generating xid for donks where needed

activity.go

@@ -197,7 +197,6 @@ func savedonk(url string, name, desc, media string, localize bool) *Donk {
 		return donk
 	}
 	log.Printf("saving donk: %s", url)
-	xid := xfiltrate()
 	data := []byte{}
 	if localize {
 		fn := func() (interface{}, error) {
@@ -223,12 +222,7 @@ func savedonk(url string, name, desc, media string, localize bool) *Donk {
 				goto saveit
 			}
 			data = img.Data
-			format := img.Format
+			media = "image/" + img.Format
-			media = "image/" + format
-			if format == "jpeg" {
-				format = "jpg"
-			}
-			xid = xid + "." + format
 		} else if media == "application/pdf" {
 			if len(data) > 1000000 {
 				log.Printf("not saving large pdf")
@@ -242,14 +236,13 @@ func savedonk(url string, name, desc, media string, localize bool) *Donk {
 		}
 	}
 saveit:
-	fileid, err := savefile(xid, name, desc, url, media, localize, data)
+	fileid, err := savefile(name, desc, url, media, localize, data)
 	if err != nil {
 		log.Printf("error saving file %s: %s", url, err)
 		return nil
 	}
 	donk := new(Donk)
 	donk.FileID = fileid
-	donk.XID = xid
 	return donk
 }
 

database.go

@@ -504,19 +504,39 @@ func donksforchonks(chonks []*Chonk) {
 	}
 }
 
-func savefile(xid string, name string, desc string, url string, media string, local bool, data []byte) (int64, error) {
+func savefile(name string, desc string, url string, media string, local bool, data []byte) (int64, error) {
+	fileid, _, err := savefileandxid(name, desc, url, media, local, data)
+	return fileid, err
+}
+
+func savefileandxid(name string, desc string, url string, media string, local bool, data []byte) (int64, string, error) {
+	xid := xfiltrate()
+	switch media {
+	case "image/png":
+		xid += ".png"
+	case "image/jpeg":
+		xid += ".jpg"
+	case "application/pdf":
+		xid += ".pdf"
+	case "text/plain":
+		xid += ".txt"
+	}
+	if url == "" {
+		url = fmt.Sprintf("https://%s/d/%s", serverName, xid)
+	}
+
 	res, err := stmtSaveFile.Exec(xid, name, desc, url, media, local)
 	if err != nil {
-		return 0, err
+		return 0, "", err
 	}
 	fileid, _ := res.LastInsertId()
 	if local {
 		_, err = stmtSaveFileData.Exec(xid, media, data)
 		if err != nil {
-			return 0, err
+			return 0, "", err
 		}
 	}
-	return fileid, nil
+	return fileid, xid, nil
 }
 
 func finddonk(url string) *Donk {

fun.go

@@ -420,14 +420,13 @@ func memetize(honk *Honk) {
 		fd.Close()
 
 		url := fmt.Sprintf("https://%s/meme/%s", serverName, name)
-		fileid, err := savefile("", name, name, url, ct, false, nil)
+		fileid, err := savefile(name, name, url, ct, false, nil)
 		if err != nil {
 			log.Printf("error saving meme: %s", err)
 			return x
 		}
 		d := &Donk{
 			FileID: fileid,
-			XID:    "",
 			Name:   name,
 			Media:  ct,
 			URL:    url,

import.go

@@ -133,7 +133,7 @@ func importMastodon(username, source string) {
 				name := att.Name
 				desc := name
 				newurl := fmt.Sprintf("https://%s/d/%s", serverName, u)
-				fileid, err := savefile(u, name, desc, newurl, att.MediaType, true, data)
+				fileid, err := savefile(name, desc, newurl, att.MediaType, true, data)
 				if err != nil {
 					log.Printf("error saving media: %s", fname)
 					continue
@@ -264,7 +264,7 @@ func importTwitter(username, source string) {
 			}
 			newurl := fmt.Sprintf("https://%s/d/%s", serverName, u)
 
-			fileid, err := savefile(u, u, u, newurl, "image/jpg", true, data)
+			fileid, err := savefile(u, u, newurl, "image/jpg", true, data)
 			if err != nil {
 				log.Printf("error saving media: %s", fname)
 				continue

web.go

@@ -1428,7 +1428,6 @@ func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
 	io.Copy(&buf, file)
 	file.Close()
 	data := buf.Bytes()
-	xid := xfiltrate()
 	var media, name string
 	img, err := shrinkit(data)
 	if err == nil {
@@ -1438,8 +1437,7 @@ func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
 		if format == "jpeg" {
 			format = "jpg"
 		}
-		name = xid + "." + format
+		name = xfiltrate() + "." + format
-		xid = name
 	} else {
 		ct := http.DetectContentType(data)
 		switch ct {
@@ -1451,10 +1449,9 @@ func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
 				return nil, err
 			}
 			media = ct
-			xid += ".pdf"
 			name = filehdr.Filename
 			if name == "" {
-				name = xid
+				name = xfiltrate() + ".pdf"
 			}
 		default:
 			maxsize := 100000
@@ -1471,10 +1468,9 @@ func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
 				}
 			}
 			media = "text/plain"
-			xid += ".txt"
 			name = filehdr.Filename
 			if name == "" {
-				name = xid
+				name = xfiltrate() + ".txt"
 			}
 		}
 	}
@@ -1482,8 +1478,7 @@ func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
 	if desc == "" {
 		desc = name
 	}
-	url := fmt.Sprintf("https://%s/d/%s", serverName, xid)
+	fileid, xid, err := savefileandxid(name, desc, "", media, true, data)
-	fileid, err := savefile(xid, name, desc, url, media, true, data)
 	if err != nil {
 		log.Printf("unable to save image: %s", err)
 		http.Error(w, "failed to save attachment", http.StatusUnsupportedMediaType)
@@ -1493,7 +1488,6 @@ func submitdonk(w http.ResponseWriter, r *http.Request) (*Donk, error) {
 		FileID: fileid,
 		XID:    xid,
 		Desc:   desc,
-		URL:    url,
 		Local:  true,
 	}
 	return d, nil