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swfmeta.py
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swfmeta.py
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from shared import config
import os.path as path
import os, sys
from cStringIO import StringIO
from time import time
import json
import swf.movie, swf.consts, swf.tag, swf.sound
# --- Metadata ---
def get_background_color(m):
for t in m.all_tags_of_type(swf.tag.TagSetBackgroundColor):
return dict(background_color = '%08x' % t.color)
return dict()
def get_file_attrs(m):
for t in m.all_tags_of_type(swf.tag.TagFileAttributes):
return dict(
attr_directblit = t.useDirectBlit,
attr_usegpu = t.useGPU,
attr_hasmeta = t.hasMetadata,
attr_as3 = t.actionscript3,
attr_network = t.useNetwork
)
return dict()
def get_xml_meta(m):
return dict(
xml_metadata = [t.xmlString for t in m.all_tags_of_type(swf.tag.TagMetadata)]
)
def get_product_data(m):
for t in m.all_tags_of_type(swf.tag.TagProductInfo):
return dict(
prod_product = swf.consts.ProductKind.tostring(t.product),
prod_edition = swf.consts.ProductEdition.tostring(t.edition),
prod_version = '%d.%d.%d' % (t.majorVersion, t.minorVersion, t.build),
prod_compiletime = t.compileTime
)
return dict()
def get_script_limits(m):
for t in m.all_tags_of_type(swf.tag.TagScriptLimits):
return dict(
lim_maxrecurse = t.maxRecursionDepth,
lim_timeout = t.scriptTimeoutSeconds
)
return dict()
def get_debug_id(m):
for t in m.all_tags_of_type(swf.tag.TagDebugID):
return dict(
dbg_guid = t.guid.encode('hex')
)
return dict()
def get_protect_data(m):
for t in m.all_tags_of_type(swf.tag.TagProtect):
if t.password is None:
return dict(dbg_protected = True)
else:
return dict(
dbg_protected = True,
dbg_protect_password = t.password
)
return dict(dbg_protected = False)
def get_debugger_data(m):
for t in m.all_tags_of_type((swf.tag.TagEnableDebugger, swf.tag.TagEnableDebugger2)):
return dict(
dbg_debuggable = True,
dbg_debug_password = t.password
)
return dict(dbg_debuggable = False)
def extract_metadata(m):
r = dict(
swf_compressed = m.header.compressed,
swf_version = m.header.version,
swf_tags = len(m.tags)
)
r.update(get_background_color(m))
r.update(get_file_attrs(m))
r.update(get_xml_meta(m))
r.update(get_product_data(m))
r.update(get_script_limits(m))
r.update(get_debug_id(m))
r.update(get_protect_data(m))
r.update(get_debugger_data(m))
return r
# --- Scripts ---
def extract_as2(m):
actions = []
for t in m.all_tags_of_type((swf.tag.TagDoAction, swf.tag.TagDoInitAction)):
actions.append(t.actions)
return dict(as2_actions = actions)
def extract_as3(m):
# TODO
return dict()
def extract_scripts(m):
r = dict()
r.update(extract_as2(m))
r.update(extract_as3(m))
return r
# --- Timeline ---
def describe_actor(act):
if isinstance(act, swf.tag.TagDefineSprite):
return dict(type = 'sprite', id = act.characterId)
if isinstance(act, (swf.tag.TagDefineButton, swf.tag.TagDefineButton2)):
return dict(type = 'button', id = act.characterId)
if isinstance(act, swf.tag.TagDefineShape):
return dict(type = 'shape', id = act.characterId)
if isinstance(act, swf.tag.TagDefineText):
return dict(type = 'text', id = act.characterId)
else:
return dict(type = 'unknown', realtype = str(type(act)))
def extract_timeline(m):
def character_displayed(now, id):
for depth, (placement_tag, character_tag) in now.iteritems():
if placement_tag.characterId == id:
return True
return False
i = 1
characters = m.build_dictionary()
char_meta = dict([(k, describe_actor(v)) for k, v in characters.items()])
displayed_now = {}
frames = []
for tag in m.all_tags_of_type((swf.tag.DisplayListTag, swf.tag.TagShowFrame), recurse_into_sprites = False):
if isinstance(tag, swf.tag.TagPlaceObject):
displayed_now[tag.depth] = tag
if isinstance(tag, swf.tag.TagRemoveObject):
del displayed_now[tag.depth]
if isinstance(tag, swf.tag.TagShowFrame):
print i, displayed_now.values()
frame = [char_meta[id.characterId] for id in displayed_now.values() if id.characterId in char_meta]
frames.append(frame)
i += 1
r = dict(nframes = i, frames = frames)
return r
# --- Testing ---
def wrapper(file, hdlr):
m = swf.movie.SWF(file)
file.close()
file = None
return json.loads(json.dumps(hdlr(m)))
def wrapper_metadata(file): return wrapper(file, extract_metadata)
def wrapper_scripts(file): return wrapper(file, extract_scripts)
def wrapper_timeline(file): return wrapper(file, extract_timeline)
if __name__ == '__main__':
import glob
for fn in glob.glob('../corpus/*.swf'):
with file(fn, 'rb') as f:
print fn, wrapper(f, lambda m: (extract_metadata(m), extract_scripts(m)))