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import urwid
import common
from .. import utils, encoding
VIEW_CUTOFF = 1024*100
VIEW_CONTENT_RAW = 0
VIEW_CONTENT_HEX = 1
VIEW_CONTENT_PRETTY = 2
CONTENT_VIEWS = {
VIEW_CONTENT_RAW: "raw",
VIEW_CONTENT_HEX: "hex",
VIEW_CONTENT_PRETTY: "pretty"
}
VIEW_CONTENT_PRETTY_TYPE_AUTO = 0
VIEW_CONTENT_PRETTY_TYPE_JSON = 1
VIEW_CONTENT_PRETTY_TYPE_XML = 2
VIEW_CONTENT_PRETTY_TYPE_URLENCODED = 3
CONTENT_PRETTY_NAMES = {
VIEW_CONTENT_PRETTY_TYPE_JSON: "json",
VIEW_CONTENT_PRETTY_TYPE_XML: "xmlish",
VIEW_CONTENT_PRETTY_TYPE_URLENCODED: "urlencoded"
}
CONTENT_PRETTY_TYPES = {
"text/html": VIEW_CONTENT_PRETTY_TYPE_XML,
"application/json": VIEW_CONTENT_PRETTY_TYPE_JSON,
"text/xml": VIEW_CONTENT_PRETTY_TYPE_XML,
"multipart/form-data": VIEW_CONTENT_PRETTY_TYPE_URLENCODED
}
def trailer(clen, txt):
rem = clen - VIEW_CUTOFF
if rem > 0:
txt.append(urwid.Text(""))
txt.append(
urwid.Text(
[
("highlight", "... %s of data not shown"%utils.pretty_size(rem))
]
)
)
def view_flow_raw(content):
txt = []
for i in utils.cleanBin(content[:VIEW_CUTOFF]).splitlines():
txt.append(
urwid.Text(("text", i))
)
trailer(len(content), txt)
return txt
def view_flow_binary(content):
txt = []
for offset, hexa, s in utils.hexdump(content[:VIEW_CUTOFF]):
txt.append(urwid.Text([
("offset", offset),
" ",
("text", hexa),
" ",
("text", s),
]))
trailer(len(content), txt)
return txt
def view_flow_xmlish(content):
txt = []
for i in utils.pretty_xmlish(content[:VIEW_CUTOFF]):
txt.append(
urwid.Text(("text", i)),
)
trailer(len(content), txt)
return txt
def view_flow_json(lines):
txt = []
sofar = 0
for i in lines:
sofar += len(i)
txt.append(
urwid.Text(("text", i)),
)
if sofar > VIEW_CUTOFF:
break
trailer(sum(len(i) for i in lines), txt)
return txt
def view_flow_formdata(content, boundary):
rx = re.compile(r'\bname="([^"]+)"')
keys = []
vals = []
for i in content.split("--" + boundary):
parts = i.splitlines()
if len(parts) > 1 and parts[0][0:2] != "--":
match = rx.search(parts[1])
if match:
keys.append(match.group(1) + ":")
vals.append(utils.cleanBin(
"\n".join(parts[3+parts[2:].index(""):])
))
r = [
urwid.Text(("highlight", "Form data:\n")),
]
r.extend(common.format_keyvals(
zip(keys, vals),
key = "header",
val = "text"
))
return r
def view_flow_urlencoded(lines):
return common.format_keyvals(
[(k+":", v) for (k, v) in lines],
key = "header",
val = "text"
)
def find_pretty_view(content, hdrItems, pretty_type=VIEW_CONTENT_PRETTY_TYPE_AUTO):
ctype = None
if pretty_type == VIEW_CONTENT_PRETTY_TYPE_AUTO:
pretty_type == None
for i in hdrItems:
if i[0].lower() == "content-type":
ctype = i[1]
break
ct = utils.parse_content_type(ctype) if ctype else None
if ct:
pretty_type = CONTENT_PRETTY_TYPES.get("%s/%s"%(ct[0], ct[1]))
if not pretty_type and utils.isXML(content):
pretty_type = VIEW_CONTENT_PRETTY_TYPE_XML
if pretty_type == VIEW_CONTENT_PRETTY_TYPE_URLENCODED:
data = utils.urldecode(content)
if data:
return "URLEncoded form", view_flow_urlencoded(data)
if pretty_type == VIEW_CONTENT_PRETTY_TYPE_XML:
return "Indented XML-ish", view_flow_xmlish(content)
if pretty_type == VIEW_CONTENT_PRETTY_TYPE_JSON:
lines = utils.pretty_json(content)
if lines:
return "JSON", view_flow_json(lines)
return "Falling back to raw.", view_flow_raw(content)
def get_content_view(viewmode, pretty_type, enc, content, hdrItems):
"""
Returns a (msg, body) tuple.
"""
msg = ""
if viewmode == VIEW_CONTENT_HEX:
body = view_flow_binary(content)
elif viewmode == VIEW_CONTENT_PRETTY:
emsg = ""
if enc:
decoded = encoding.decode(enc, content)
if decoded:
content = decoded
if enc and enc != "identity":
emsg = "[decoded %s]"%enc
msg, body = find_pretty_view(content, hdrItems, pretty_type)
if pretty_type != VIEW_CONTENT_PRETTY_TYPE_AUTO:
emsg += " (forced to %s)"%(CONTENT_PRETTY_NAMES[pretty_type])
if emsg:
msg = emsg + " " + msg
else:
body = view_flow_raw(content)
return msg, body
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