diff options
Diffstat (limited to 'xmpp-vala/src/module/xep/0446_file_metadata_element.vala')
| -rw-r--r-- | xmpp-vala/src/module/xep/0446_file_metadata_element.vala | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/xmpp-vala/src/module/xep/0446_file_metadata_element.vala b/xmpp-vala/src/module/xep/0446_file_metadata_element.vala new file mode 100644 index 00000000..d7fbb06f --- /dev/null +++ b/xmpp-vala/src/module/xep/0446_file_metadata_element.vala @@ -0,0 +1,120 @@ +using Xmpp.Xep.CryptographicHashes; + +namespace Xmpp.Xep.FileMetadataElement { + public const string NS_URI = "urn:xmpp:file:metadata:0"; + + public class FileMetadata { + public string name { get; set; } + public string? mime_type { get; set; } + public int64 size { get; set; default=-1; } + public string? desc { get; set; } + public DateTime? date { get; set; } + public int width { get; set; default=-1; } // Width of image in pixels + public int height { get; set; default=-1; } // Height of image in pixels + public CryptographicHashes.Hashes hashes = new CryptographicHashes.Hashes(); + public int64 length { get; set; default=-1; } // Length of audio/video in milliseconds + public Gee.List<Xep.JingleContentThumbnails.Thumbnail> thumbnails = new Gee.ArrayList<Xep.JingleContentThumbnails.Thumbnail>(); + + public StanzaNode to_stanza_node() { + StanzaNode node = new StanzaNode.build("file", NS_URI).add_self_xmlns() + .put_node(new StanzaNode.build("name", NS_URI).put_node(new StanzaNode.text(this.name))); + if (this.mime_type != null) { + node.put_node(new StanzaNode.build("media_type", NS_URI).put_node(new StanzaNode.text(this.mime_type))); + } + if (this.size != -1) { + node.put_node(new StanzaNode.build("size", NS_URI).put_node(new StanzaNode.text(this.size.to_string()))); + } + if (this.date != null) { + node.put_node(new StanzaNode.build("date", NS_URI).put_node(new StanzaNode.text(this.date.to_string()))); + } + if (this.desc != null) { + node.put_node(new StanzaNode.build("desc", NS_URI).put_node(new StanzaNode.text(this.desc))); + } + if (this.width != -1) { + node.put_node(new StanzaNode.build("width", NS_URI).put_node(new StanzaNode.text(this.width.to_string()))); + } + if (this.height != -1) { + node.put_node(new StanzaNode.build("height", NS_URI).put_node(new StanzaNode.text(this.height.to_string()))); + } + if (this.length != -1) { + node.put_node(new StanzaNode.build("length", NS_URI).put_node(new StanzaNode.text(this.length.to_string()))); + } + node.sub_nodes.add_all(this.hashes.to_stanza_nodes()); + foreach (Xep.JingleContentThumbnails.Thumbnail thumbnail in this.thumbnails) { + node.put_node(thumbnail.to_stanza_node()); + } + return node; + } + + public void add_to_message(MessageStanza message) { + StanzaNode node = this.to_stanza_node(); + printerr("Attaching file metadata:\n"); + printerr("%s\n", node.to_ansi_string(true)); + message.stanza.put_node(node); + } + + public static FileMetadata? from_stanza_node(StanzaNode node) { + FileMetadata metadata = new FileMetadata(); + // TODO: null checks on final values + StanzaNode? name_node = node.get_subnode("name"); + if (name_node == null || name_node.get_string_content() == null) { + return null; + } else { + metadata.name = name_node.get_string_content(); + } + StanzaNode? desc_node = node.get_subnode("desc"); + if (desc_node != null && desc_node.get_string_content() != null) { + metadata.desc = desc_node.get_string_content(); + } + StanzaNode? mime_node = node.get_subnode("media_type"); + if (mime_node != null && mime_node.get_string_content() != null) { + metadata.mime_type = mime_node.get_string_content(); + } + StanzaNode? size_node = node.get_subnode("size"); + if (size_node != null && size_node.get_string_content() != null) { + metadata.size = int64.parse(size_node.get_string_content()); + } + StanzaNode? date_node = node.get_subnode("date"); + if (date_node != null && date_node.get_string_content() != null) { + metadata.date = new DateTime.from_iso8601(date_node.get_string_content(), null); + } + StanzaNode? width_node = node.get_subnode("width"); + if (width_node != null && width_node.get_string_content() != null) { + metadata.width = int.parse(width_node.get_string_content()); + } + StanzaNode? height_node = node.get_subnode("height"); + if (height_node != null && height_node.get_string_content() != null) { + metadata.height = int.parse(height_node.get_string_content()); + } + StanzaNode? length_node = node.get_subnode("length"); + if (length_node != null && length_node.get_string_content() != null) { + metadata.length = int.parse(length_node.get_string_content()); + } + foreach (StanzaNode thumbnail_node in node.get_subnodes(Xep.JingleContentThumbnails.STANZA_NAME, Xep.JingleContentThumbnails.NS_URI)) { + Xep.JingleContentThumbnails.Thumbnail? thumbnail = Xep.JingleContentThumbnails.Thumbnail.from_stanza_node(thumbnail_node); + if (thumbnail != null) { + metadata.thumbnails.add(thumbnail); + } + } + metadata.hashes = new CryptographicHashes.Hashes.from_stanza_subnodes(node); + return metadata; + } + + public static FileMetadata? from_message(MessageStanza message) { + StanzaNode? node = message.stanza.get_subnode("file", NS_URI); + if (node == null) { + return null; + } + printerr("Parsing metadata from message:\n"); + printerr("%s\n", node.to_xml()); + FileMetadata metadata = FileMetadata.from_stanza_node(node); + if (metadata != null) { + printerr("Parsed metadata:\n"); + printerr("%s\n", metadata.to_stanza_node().to_ansi_string(true)); + } else { + printerr("Failed to parse metadata!\n"); + } + return FileMetadata.from_stanza_node(node); + } + } +} |