allow pdf attachments. serious business only.

docs/changelog.txt

@@ -2,6 +2,8 @@ changelog
 
 -- next
 
++ Allow PDF attachments. For serious business only.
+
 + "Untag" button to mute part of a thread.
 
 ++ Subscribe to hashtags.

docs/honk.5

@@ -91,7 +91,7 @@ to read this noise.
 One may attach a file to a post.
 Images are automatically rescaled and reduced in size for federation.
 A description, or caption, is encouraged.
-Text files are also supported as attachments.
+Text files and PDFs are also supported as attachments.
 Other formats are not supported.
 .Pp
 One may also check in to a location.

views/honk.html

@@ -65,7 +65,9 @@ in reply to: <a href="{{ .RID }}" rel=noreferrer>{{ .RID }}</a>
 {{ range .Donks }}
 {{ if .Local }}
 {{ if eq .Media "text/plain" }}
-<p><a href="/d/{{ .XID }}">Attachment: {{ .Name }}</a>
+<p><a href="/d/{{ .XID }}">Attachment: {{ .Name }}</a> {{ .Desc }}
+{{ else if eq .Media "application/pdf" }}
+<p><a href="/d/{{ .XID }}">Attachment: {{ .Name }}</a> {{ .Desc }}
 {{ else }}
 <p><img src="/d/{{ .XID }}" title="{{ .Desc }}" alt="{{ .Desc }}">
 {{ end }}

web.go

@@ -1310,6 +1310,22 @@ func submithonk(w http.ResponseWriter, r *http.Request) {
 				name = xid + "." + format
 				xid = name
 			} else {
+				ct := http.DetectContentType(data)
+				switch ct {
+				case "application/pdf":
+					maxsize := 1000000
+					if len(data) > maxsize {
+						log.Printf("bad image: %s too much pdf: %d", err, len(data))
+						http.Error(w, "didn't like your attachment", http.StatusUnsupportedMediaType)
+						return
+					}
+					media = ct
+					xid += ".pdf"
+					name = filehdr.Filename
+					if name == "" {
+						name = xid
+					}
+				default:
 					maxsize := 100000
 					if len(data) > maxsize {
 						log.Printf("bad image: %s too much text: %d", err, len(data))
@@ -1324,11 +1340,12 @@ func submithonk(w http.ResponseWriter, r *http.Request) {
 						}
 					}
 					media = "text/plain"
+					xid += ".txt"
 					name = filehdr.Filename
 					if name == "" {
-					name = xid + ".txt"
+						name = xid
+					}
 				}
-				xid += ".txt"
 			}
 			desc := strings.TrimSpace(r.FormValue("donkdesc"))
 			if desc == "" {