1 files changed, 160 insertions, 0 deletions
diff --git a/plugins/python/liveconv/converters.py b/plugins/python/liveconv/converters.py
new file mode 100644
index 0000000..ef35f59
--- /dev/null
+++ b/plugins/python/liveconv/converters.py
@@ -0,0 +1,160 @@
+
+from datetime import datetime, timedelta
+from pychrysalide.arch import vmpa
+import string
+import struct
+
+
+def data_to_number(content, addr, order, fmt):
+    """Convert to a number, if possible."""
+
+    size =  struct.calcsize(order + fmt)
+
+    data = content.read_raw(addr, size)
+
+    value = struct.unpack(order + fmt, data)[0]
+
+    return str(value)
+
+
+def data_to_time(content, addr, order, fmt):
+    """Convert to a number, if possible."""
+
+    size =  struct.calcsize(order + fmt)
+
+    data = content.read_raw(addr, size)
+
+    value = struct.unpack(order + fmt, data)[0]
+
+    return str(datetime(1970, 1, 1) + timedelta(seconds=value))
+
+
+# Cf. FILETIME structure
+# https://docs.microsoft.com/fr-fr/windows/win32/api/minwinbase/ns-minwinbase-filetime
+
+def data_to_filetime(content, addr, order):
+    """Convert to a Windows FILETIME, if possible."""
+
+    data = content.read_raw(addr, 8)
+
+    value = struct.unpack(order + 'Q', data)[0]
+
+    us = value / 10.
+
+    return str(datetime(1601, 1, 1) + timedelta(microseconds=us))
+
+
+# Cf. DosDateTimeToFileTime()
+# https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-dosdatetimetofiletime
+
+def data_to_dos_time(content, addr, order):
+    """Convert to a MS-DOS time, if possible."""
+
+    data = content.read_raw(addr, 2)
+
+    value = struct.unpack(order + 'H', data)[0]
+
+    seconds = (value & 0x1f) * 2
+    minutes = (value & 0x7e0) >> 5
+    hours = (value & 0xf800) >> 11
+
+    return '%02u:%02u:%02u' % (hours, minutes, seconds)
+
+def data_to_dos_date(content, addr, order):
+    """Convert to a MS-DOS date, if possible."""
+
+    data = content.read_raw(addr, 2)
+
+    value = struct.unpack(order + 'H', data)[0]
+
+    day = (value & 0x1f)
+    month = (value & 0x1e0) >> 5
+    year = ((value & 0xfe00) >> 9) + 1980
+
+    return '%u/%u/%u' % (month, day, year)
+
+
+def data_to_char(content, addr, order):
+    """Convert to a character, if possible."""
+
+    data = content.read_raw(addr, 1)
+
+    value = struct.unpack(order + 'c', data)[0]
+
+    ch = chr(value[0])
+
+    return ch if ch in string.printable else '-'
+
+
+def data_to_ansi(content, addr, order):
+    """Convert to an ANSI string, if possible."""
+
+    result = None
+
+    while True:
+
+        try:
+
+            data = content.read_raw(addr, 1)
+
+            value = struct.unpack(order + 'c', data)[0]
+
+            ch = chr(value[0])
+
+            if not(ch in string.printable):
+                break
+
+            if result:
+                result += ch
+            else:
+                result = ch
+
+        except:
+            pass
+
+    return result if result else '-'
+
+
+def _data_to_utf(content, addr, utf):
+    """Convert to an UTF-X string, if possible."""
+
+    result = None
+
+    length = 0
+
+    while True:
+
+        try:
+
+            start = vmpa(addr.phys, 0)
+            data = content.read_raw(start, length + 1)
+
+            result = data.decode(utf)
+
+            length += 1
+
+        except Exception as e:
+            break
+
+    if length > 0:
+
+        data = content.read_raw(addr, length)
+
+        result = data.decode('utf-8')
+
+    else:
+        result = '-'
+
+    return result
+
+
+def data_to_utf8(content, addr, order):
+    """Convert to an UTF-8 string, if possible."""
+
+    return _data_to_utf(content, addr, 'utf-8')
+
+
+def data_to_utf16(content, addr, order):
+    """Convert to an UTF-16 string, if possible."""
+
+    return _data_to_utf(content, addr, 'utf-16')