Initial Implementation

2012-05-02 12:46:42 +02:00
parent 0484b764bf
commit b40f9a2f88
15 changed files with 1270 additions and 0 deletions
--- a/lib/pcsclite.js
+++ b/lib/pcsclite.js
@@ -0,0 +1,104 @@
+var events = require('events');
+require('buffertools');
+
+/* Make sure we choose the correct build directory */
+var bindings = require('bindings')('pcsclite');
+var PCSCLite = bindings.PCSCLite;
+var CardReader = bindings.CardReader;
+inherits(PCSCLite, events.EventEmitter);
+inherits(CardReader, events.EventEmitter);
+
+module.exports = function() {
+
+    var readers = [];
+    var p = new PCSCLite();
+    process.nextTick(function() {
+        p.start(function(e, data) {
+            if (e) {
+                p.emit('error', e);
+            } else {
+                /* parse data buffer to get the card reader name, and get the reader */
+                var readers_aux = [];
+                var ini = 0;
+                var pos = 0;
+                while((pos = data.slice(ini).indexOf('\0')) > 0) {
+                    var name = data.slice(ini, ini + pos).toString();
+                    var is_old = false;
+                    for (var i = 0; i < readers.length; ++i) {
+                        if (readers[i].name === name) {
+                            readers_aux.push(readers[i]);
+                            is_old = true;
+                            break;
+                        }
+                    }
+
+                    if (!is_old) {
+                        var r = new CardReader(name);
+                        readers_aux.push(r);
+                        p.emit('reader', r);
+                        r.get_status(function(e, status) {
+                            if (e) {
+                                r.emit('error', e);
+                            } else {
+                                r.emit('status', status);
+                                r.status = status;
+                            }
+                        });
+                    }
+
+                    ini += pos + 1;
+                }
+
+                readers = readers_aux;
+            }
+        });
+    });
+
+    return p;
+};
+
+CardReader.prototype.connect = function(cb) {
+
+    if (!this.connected) {
+        this._connect(cb);
+    } else {
+        cb();
+    }
+};
+
+CardReader.prototype.disconnect = function(cb) {
+
+    if (this.connected) {
+        this._disconnect(cb);
+    } else {
+        cb();
+    }
+};
+
+CardReader.prototype.transmit = function(data, res_len, protocol, cb) {
+
+    if (!this.connected) {
+        return cb(new Error("Card Reader not connected"));
+    }
+
+    this._transmit(data, res_len, protocol, cb);
+};
+
+CardReader.prototype.SCARD_STATE_UNAWARE = 0x0000;
+CardReader.prototype.SCARD_STATE_IGNORE = 0x0001;
+CardReader.prototype.SCARD_STATE_CHANGED = 0x0002;
+CardReader.prototype.SCARD_STATE_UNKNOWN = 0x0004;
+CardReader.prototype.SCARD_STATE_UNAVAILABLE = 0x0008;
+CardReader.prototype.SCARD_STATE_EMPTY = 0x0010;
+CardReader.prototype.SCARD_STATE_PRESENT = 0x0020;
+CardReader.prototype.SCARD_STATE_ATRMATCH = 0x0040;
+CardReader.prototype.SCARD_STATE_EXCLUSIVE = 0x0080;
+CardReader.prototype.CARD_STATE_INUSE = 0x0100;
+CardReader.prototype.SCARD_STATE_MUTE = 0x0200;
+
+// extend prototype
+function inherits(target, source) {
+    for (var k in source.prototype) {
+        target.prototype[k] = source.prototype[k];
+    }
+}