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authorPhilipp Hagemeister <phihag@phihag.de>2014-11-17 04:54:54 +0100
committerPhilipp Hagemeister <phihag@phihag.de>2014-11-17 04:54:54 +0100
commit6b592d93a29163664d3125761fbf6d7c9fe5f56c (patch)
tree2f9c8f8f792870d355a5d744d5e335a589b7880e /youtube_dl/swfinterp.py
parent4686ae4b64c3c0a88b9a8a3fb7a7657df3753c5e (diff)
[swfinterp] Formalize built-in classes
Diffstat (limited to 'youtube_dl/swfinterp.py')
-rw-r--r--youtube_dl/swfinterp.py46
1 files changed, 28 insertions, 18 deletions
diff --git a/youtube_dl/swfinterp.py b/youtube_dl/swfinterp.py
index 008cd76c7..4b47df29d 100644
--- a/youtube_dl/swfinterp.py
+++ b/youtube_dl/swfinterp.py
@@ -149,6 +149,11 @@ def _read_byte(reader):
StringClass = _AVMClass('(no name idx)', 'String')
+ByteArrayClass = _AVMClass('(no name idx)', 'ByteArray')
+_builtin_classes = {
+ StringClass.name: StringClass,
+ ByteArrayClass.name: ByteArrayClass,
+}
class _Undefined(object):
@@ -468,11 +473,31 @@ class SWFInterpreter(object):
[stack.pop() for _ in range(arg_count)]))
obj = stack.pop()
- if isinstance(obj, _AVMClass_Object):
+ if obj == StringClass:
+ if mname == 'String':
+ assert len(args) == 1
+ assert isinstance(args[0], (
+ int, compat_str, _Undefined))
+ if args[0] == undefined:
+ res = 'undefined'
+ else:
+ res = compat_str(args[0])
+ stack.append(res)
+ continue
+ else:
+ raise NotImplementedError(
+ 'Function String.%s is not yet implemented'
+ % mname)
+ elif isinstance(obj, _AVMClass_Object):
func = self.extract_function(obj.avm_class, mname)
res = func(args)
stack.append(res)
continue
+ elif isinstance(obj, _AVMClass):
+ func = self.extract_function(obj, mname)
+ res = func(args)
+ stack.append(res)
+ continue
elif isinstance(obj, _ScopeDict):
if mname in obj.avm_class.method_names:
func = self.extract_function(obj.avm_class, mname)
@@ -504,21 +529,6 @@ class SWFInterpreter(object):
res = args[0].join(obj)
stack.append(res)
continue
- elif obj == StringClass:
- if mname == 'String':
- assert len(args) == 1
- assert isinstance(args[0], (
- int, compat_str, _Undefined))
- if args[0] == undefined:
- res = 'undefined'
- else:
- res = compat_str(args[0])
- stack.append(res)
- continue
- else:
- raise NotImplementedError(
- 'Function String.%s is not yet implemented'
- % mname)
raise NotImplementedError(
'Unsupported property %r on %r'
% (mname, obj))
@@ -582,8 +592,8 @@ class SWFInterpreter(object):
break
else:
res = scopes[0]
- if mname not in res and mname == 'String':
- stack.append(StringClass)
+ if mname not in res and mname in _builtin_classes:
+ stack.append(_builtin_classes[mname])
else:
stack.append(res[mname])
elif opcode == 94: # findproperty