Unknown field(s) (is_super) specified for NewUser.

最新推荐文章于 2025-11-30 17:47:52 发布
原创 最新推荐文章于 2025-11-30 17:47:52 发布 · 476 阅读 · 0 ·
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在Django项目中，出现了一个FieldError，原因是NewUserAdmin类引用了NewUser模型的is_super字段，但该字段实际上应为is_superuser。为解决此问题，需要更新NewUserAdmin中的字段引用，确保与NewUser模型的定义一致。

完整的报错信息：

django.core.exceptions.FieldError: Unknown field(s) (is_super) specified for NewUser. Check fields/fieldsets/exclude attributes of class NewUserAdmin.

为NewUser指定了未知字段（is_super）。检查NewUserAdmin类的字段/字段集/排除属性。

NewUserAdmin类里面引用了NewUser类的字段is_super，但是NewUser并未定义字段（is_super）。检查NewUserAdmin类的字段/字段集/排除属性。

原因：

NewUser里面定义的字段是is_superuser，修改NewUserAdmin的is_super

 

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r"""HTTP/1.1 client library <intro stuff goes here> <other stuff, too> HTTPConnection goes through a number of "states", which define when a client may legally make another request or fetch the response for a particular request. This diagram details these state transitions: (null) | | HTTPConnection() v Idle | | putrequest() v Request-started | | ( putheader() )* endheaders() v Request-sent |\_____________________________ | | getresponse() raises | response = getresponse() | ConnectionError v v Unread-response Idle [Response-headers-read] |\____________________ | | | response.read() | putrequest() v v Idle Req-started-unread-response ______/| / | response.read() | | ( putheader() )* endheaders() v v Request-started Req-sent-unread-response | | response.read() v Request-sent This diagram presents the following rules: -- a second request may not be started until {response-headers-read} -- a response [object] cannot be retrieved until {request-sent} -- there is no differentiation between an unread response body and a partially read response body Note: this enforcement is applied by the HTTPConnection class. The HTTPResponse class does not enforce this state machine, which implies sophisticated clients may accelerate the request/response pipeline. Caution should be taken, though: accelerating the states beyond the above pattern may imply knowledge of the server's connection-close behavior for certain requests. For example, it is impossible to tell whether the server will close the connection UNTIL the response headers have been read; this means that further requests cannot be placed into the pipeline until it is known that the server will NOT be closing the connection. Logical State __state __response ------------- ------- ---------- Idle _CS_IDLE None Request-started _CS_REQ_STARTED None Request-sent _CS_REQ_SENT None Unread-response _CS_IDLE <response_class> Req-started-unread-response _CS_REQ_STARTED <response_class> Req-sent-unread-response _CS_REQ_SENT <response_class> """ import email.parser import email.message import errno import http import io import re import socket import sys import collections.abc from urllib.parse import urlsplit # HTTPMessage, parse_headers(), and the HTTP status code constants are # intentionally omitted for simplicity __all__ = ["HTTPResponse", "HTTPConnection", "HTTPException", "NotConnected", "UnknownProtocol", "UnknownTransferEncoding", "UnimplementedFileMode", "IncompleteRead", "InvalidURL", "ImproperConnectionState", "CannotSendRequest", "CannotSendHeader", "ResponseNotReady", "BadStatusLine", "LineTooLong", "RemoteDisconnected", "error", "responses"] HTTP_PORT = 80 HTTPS_PORT = 443 _UNKNOWN = 'UNKNOWN' # connection states _CS_IDLE = 'Idle' _CS_REQ_STARTED = 'Request-started' _CS_REQ_SENT = 'Request-sent' # hack to maintain backwards compatibility globals().update(http.HTTPStatus.__members__) # another hack to maintain backwards compatibility # Mapping status codes to official W3C names responses = {v: v.phrase for v in http.HTTPStatus.__members__.values()} # maximal line length when calling readline(). _MAXLINE = 65536 _MAXHEADERS = 100 # Header name/value ABNF (http://tools.ietf.org/html/rfc7230#section-3.2) # # VCHAR = %x21-7E # obs-text = %x80-FF # header-field = field-name ":" OWS field-value OWS # field-name = token # field-value = *( field-content / obs-fold ) # field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ] # field-vchar = VCHAR / obs-text # # obs-fold = CRLF 1*( SP / HTAB ) # ; obsolete line folding # ; see Section 3.2.4 # token = 1*tchar # # tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" # / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~" # / DIGIT / ALPHA # ; any VCHAR, except delimiters # # VCHAR defined in http://tools.ietf.org/html/rfc5234#appendix-B.1 # the patterns for both name and value are more lenient than RFC # definitions to allow for backwards compatibility _is_legal_header_name = re.compile(rb'[^:\s][^:\r\n]*').fullmatch _is_illegal_header_value = re.compile(rb'\n(?![ \t])|\r(?![ \t\n])').search # These characters are not allowed within HTTP URL paths. # See https://tools.ietf.org/html/rfc3986#section-3.3 and the # https://tools.ietf.org/html/rfc3986#appendix-A pchar definition. # Prevents CVE-2019-9740. Includes control characters such as \r\n. # We don't restrict chars above \x7f as putrequest() limits us to ASCII. _contains_disallowed_url_pchar_re = re.compile('[\x00-\x20\x7f]') # Arguably only these _should_ allowed: # _is_allowed_url_pchars_re = re.compile(r"^[/!$&'()*+,;=:@%a-zA-Z0-9._~-]+$") # We are more lenient for assumed real world compatibility purposes. # These characters are not allowed within HTTP method names # to prevent http header injection. _contains_disallowed_method_pchar_re = re.compile('[\x00-\x1f]') # We always set the Content-Length header for these methods because some # servers will otherwise respond with a 411 _METHODS_EXPECTING_BODY = {'PATCH', 'POST', 'PUT'} def _encode(data, name='data'): """Call data.encode("latin-1") but show a better error message.""" try: return data.encode("latin-1") except UnicodeEncodeError as err: raise UnicodeEncodeError( err.encoding, err.object, err.start, err.end, "%s (%.20r) is not valid Latin-1. Use %s.encode('utf-8') " "if you want to send it encoded in UTF-8." % (name.title(), data[err.start:err.end], name)) from None class HTTPMessage(email.message.Message): # XXX The only usage of this method is in # http.server.CGIHTTPRequestHandler. Maybe move the code there so # that it doesn't need to be part of the public API. The API has # never been defined so this could cause backwards compatibility # issues. def getallmatchingheaders(self, name): """Find all header lines matching a given header name. Look through the list of headers and find all lines matching a given header name (and their continuation lines). A list of the lines is returned, without interpretation. If the header does not occur, an empty list is returned. If the header occurs multiple times, all occurrences are returned. Case is not important in the header name. """ name = name.lower() + ':' n = len(name) lst = [] hit = 0 for line in self.keys(): if line[:n].lower() == name: hit = 1 elif not line[:1].isspace(): hit = 0 if hit: lst.append(line) return lst def _read_headers(fp): """Reads potential header lines into a list from a file pointer. Length of line is limited by _MAXLINE, and number of headers is limited by _MAXHEADERS. """ headers = [] while True: line = fp.readline(_MAXLINE + 1) if len(line) > _MAXLINE: raise LineTooLong("header line") headers.append(line) if len(headers) > _MAXHEADERS: raise HTTPException("got more than %d headers" % _MAXHEADERS) if line in (b'\r\n', b'\n', b''): break return headers def parse_headers(fp, _class=HTTPMessage): """Parses only RFC2822 headers from a file pointer. email Parser wants to see strings rather than bytes. But a TextIOWrapper around self.rfile would buffer too many bytes from the stream, bytes which we later need to read as bytes. So we read the correct bytes here, as bytes, for email Parser to parse. """ headers = _read_headers(fp) hstring = b''.join(headers).decode('iso-8859-1') return email.parser.Parser(_class=_class).parsestr(hstring) class HTTPResponse(io.BufferedIOBase): # See RFC 2616 sec 19.6 and RFC 1945 sec 6 for details. # The bytes from the socket object are iso-8859-1 strings. # See RFC 2616 sec 2.2 which notes an exception for MIME-encoded # text following RFC 2047. The basic status line parsing only # accepts iso-8859-1. def __init__(self, sock, debuglevel=0, method=None, url=None): # If the response includes a content-length header, we need to # make sure that the client doesn't read more than the # specified number of bytes. If it does, it will block until # the server times out and closes the connection. This will # happen if a self.fp.read() is done (without a size) whether # self.fp is buffered or not. So, no self.fp.read() by # clients unless they know what they are doing. self.fp = sock.makefile("rb") self.debuglevel = debuglevel self._method = method # The HTTPResponse object is returned via urllib. The clients # of http and urllib expect different attributes for the # headers. headers is used here and supports urllib. msg is # provided as a backwards compatibility layer for http # clients. self.headers = self.msg = None # from the Status-Line of the response self.version = _UNKNOWN # HTTP-Version self.status = _UNKNOWN # Status-Code self.reason = _UNKNOWN # Reason-Phrase self.chunked = _UNKNOWN # is "chunked" being used? self.chunk_left = _UNKNOWN # bytes left to read in current chunk self.length = _UNKNOWN # number of bytes left in response self.will_close = _UNKNOWN # conn will close at end of response def _read_status(self): line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1") if len(line) > _MAXLINE: raise LineTooLong("status line") if self.debuglevel > 0: print("reply:", repr(line)) if not line: # Presumably, the server closed the connection before # sending a valid response. raise RemoteDisconnected("Remote end closed connection without" " response") try: version, status, reason = line.split(None, 2) except ValueError: try: version, status = line.split(None, 1) reason = "" except ValueError: # empty version will cause next test to fail. version = "" if not version.startswith("HTTP/"): self._close_conn() raise BadStatusLine(line) # The status code is a three-digit number try: status = int(status) if status < 100 or status > 999: raise BadStatusLine(line) except ValueError: raise BadStatusLine(line) return version, status, reason def begin(self): if self.headers is not None: # we've already started reading the response return # read until we get a non-100 response while True: version, status, reason = self._read_status() if status != CONTINUE: break # skip the header from the 100 response skipped_headers = _read_headers(self.fp) if self.debuglevel > 0: print("headers:", skipped_headers) del skipped_headers self.code = self.status = status self.reason = reason.strip() if version in ("HTTP/1.0", "HTTP/0.9"): # Some servers might still return "0.9", treat it as 1.0 anyway self.version = 10 elif version.startswith("HTTP/1."): self.version = 11 # use HTTP/1.1 code for HTTP/1.x where x>=1 else: raise UnknownProtocol(version) self.headers = self.msg = parse_headers(self.fp) if self.debuglevel > 0: for hdr, val in self.headers.items(): print("header:", hdr + ":", val) # are we using the chunked-style of transfer encoding? tr_enc = self.headers.get("transfer-encoding") if tr_enc and tr_enc.lower() == "chunked": self.chunked = True self.chunk_left = None else: self.chunked = False # will the connection close at the end of the response? self.will_close = self._check_close() # do we have a Content-Length? # NOTE: RFC 2616, S4.4, #3 says we ignore this if tr_enc is "chunked" self.length = None length = self.headers.get("content-length") if length and not self.chunked: try: self.length = int(length) except ValueError: self.length = None else: if self.length < 0: # ignore nonsensical negative lengths self.length = None else: self.length = None # does the body have a fixed length? (of zero) if (status == NO_CONTENT or status == NOT_MODIFIED or 100 <= status < 200 or # 1xx codes self._method == "HEAD"): self.length = 0 # if the connection remains open, and we aren't using chunked, and # a content-length was not provided, then assume that the connection # WILL close. if (not self.will_close and not self.chunked and self.length is None): self.will_close = True def _check_close(self): conn = self.headers.get("connection") if self.version == 11: # An HTTP/1.1 proxy is assumed to stay open unless # explicitly closed. if conn and "close" in conn.lower(): return True return False # Some HTTP/1.0 implementations have support for persistent # connections, using rules different than HTTP/1.1. # For older HTTP, Keep-Alive indicates persistent connection. if self.headers.get("keep-alive"): return False # At least Akamai returns a "Connection: Keep-Alive" header, # which was supposed to be sent by the client. if conn and "keep-alive" in conn.lower(): return False # Proxy-Connection is a netscape hack. pconn = self.headers.get("proxy-connection") if pconn and "keep-alive" in pconn.lower(): return False # otherwise, assume it will close return True def _close_conn(self): fp = self.fp self.fp = None fp.close() def close(self): try: super().close() # set "closed" flag finally: if self.fp: self._close_conn() # These implementations are for the benefit of io.BufferedReader. # XXX This class should probably be revised to act more like # the "raw stream" that BufferedReader expects. def flush(self): super().flush() if self.fp: self.fp.flush() def readable(self): """Always returns True""" return True # End of "raw stream" methods def isclosed(self): """True if the connection is closed.""" # NOTE: it is possible that we will not ever call self.close(). This # case occurs when will_close is TRUE, length is None, and we # read up to the last byte, but NOT past it. # # IMPLIES: if will_close is FALSE, then self.close() will ALWAYS be # called, meaning self.isclosed() is meaningful. return self.fp is None def read(self, amt=None): if self.fp is None: return b"" if self._method == "HEAD": self._close_conn() return b"" if self.chunked: return self._read_chunked(amt) if amt is not None: if self.length is not None and amt > self.length: # clip the read to the "end of response" amt = self.length s = self.fp.read(amt) if not s and amt: # Ideally, we would raise IncompleteRead if the content-length # wasn't satisfied, but it might break compatibility. self._close_conn() elif self.length is not None: self.length -= len(s) if not self.length: self._close_conn() return s else: # Amount is not given (unbounded read) so we must check self.length if self.length is None: s = self.fp.read() else: try: s = self._safe_read(self.length) except IncompleteRead: self._close_conn() raise self.length = 0 self._close_conn() # we read everything return s def readinto(self, b): """Read up to len(b) bytes into bytearray b and return the number of bytes read. """ if self.fp is None: return 0 if self._method == "HEAD": self._close_conn() return 0 if self.chunked: return self._readinto_chunked(b) if self.length is not None: if len(b) > self.length: # clip the read to the "end of response" b = memoryview(b)[0:self.length] # we do not use _safe_read() here because this may be a .will_close # connection, and the user is reading more bytes than will be provided # (for example, reading in 1k chunks) n = self.fp.readinto(b) if not n and b: # Ideally, we would raise IncompleteRead if the content-length # wasn't satisfied, but it might break compatibility. self._close_conn() elif self.length is not None: self.length -= n if not self.length: self._close_conn() return n def _read_next_chunk_size(self): # Read the next chunk size from the file line = self.fp.readline(_MAXLINE + 1) if len(line) > _MAXLINE: raise LineTooLong("chunk size") i = line.find(b";") if i >= 0: line = line[:i] # strip chunk-extensions try: return int(line, 16) except ValueError: # close the connection as protocol synchronisation is # probably lost self._close_conn() raise def _read_and_discard_trailer(self): # read and discard trailer up to the CRLF terminator ### note: we shouldn't have any trailers! while True: line = self.fp.readline(_MAXLINE + 1) if len(line) > _MAXLINE: raise LineTooLong("trailer line") if not line: # a vanishingly small number of sites EOF without # sending the trailer break if line in (b'\r\n', b'\n', b''): break def _get_chunk_left(self): # return self.chunk_left, reading a new chunk if necessary. # chunk_left == 0: at the end of the current chunk, need to close it # chunk_left == None: No current chunk, should read next. # This function returns non-zero or None if the last chunk has # been read. chunk_left = self.chunk_left if not chunk_left: # Can be 0 or None if chunk_left is not None: # We are at the end of chunk, discard chunk end self._safe_read(2) # toss the CRLF at the end of the chunk try: chunk_left = self._read_next_chunk_size() except ValueError: raise IncompleteRead(b'') if chunk_left == 0: # last chunk: 1*("0") [ chunk-extension ] CRLF self._read_and_discard_trailer() # we read everything; close the "file" self._close_conn() chunk_left = None self.chunk_left = chunk_left return chunk_left def _read_chunked(self, amt=None): assert self.chunked != _UNKNOWN value = [] try: while True: chunk_left = self._get_chunk_left() if chunk_left is None: break if amt is not None and amt <= chunk_left: value.append(self._safe_read(amt)) self.chunk_left = chunk_left - amt break value.append(self._safe_read(chunk_left)) if amt is not None: amt -= chunk_left self.chunk_left = 0 return b''.join(value) except IncompleteRead as exc: raise IncompleteRead(b''.join(value)) from exc def _readinto_chunked(self, b): assert self.chunked != _UNKNOWN total_bytes = 0 mvb = memoryview(b) try: while True: chunk_left = self._get_chunk_left() if chunk_left is None: return total_bytes if len(mvb) <= chunk_left: n = self._safe_readinto(mvb) self.chunk_left = chunk_left - n return total_bytes + n temp_mvb = mvb[:chunk_left] n = self._safe_readinto(temp_mvb) mvb = mvb[n:] total_bytes += n self.chunk_left = 0 except IncompleteRead: raise IncompleteRead(bytes(b[0:total_bytes])) def _safe_read(self, amt): """Read the number of bytes requested. This function should be used when <amt> bytes "should" be present for reading. If the bytes are truly not available (due to EOF), then the IncompleteRead exception can be used to detect the problem. """ data = self.fp.read(amt) if len(data) < amt: raise IncompleteRead(data, amt-len(data)) return data def _safe_readinto(self, b): """Same as _safe_read, but for reading into a buffer.""" amt = len(b) n = self.fp.readinto(b) if n < amt: raise IncompleteRead(bytes(b[:n]), amt-n) return n def read1(self, n=-1): """Read with at most one underlying system call. If at least one byte is buffered, return that instead. """ if self.fp is None or self._method == "HEAD": return b"" if self.chunked: return self._read1_chunked(n) if self.length is not None and (n < 0 or n > self.length): n = self.length result = self.fp.read1(n) if not result and n: self._close_conn() elif self.length is not None: self.length -= len(result) return result def peek(self, n=-1): # Having this enables IOBase.readline() to read more than one # byte at a time if self.fp is None or self._method == "HEAD": return b"" if self.chunked: return self._peek_chunked(n) return self.fp.peek(n) def readline(self, limit=-1): if self.fp is None or self._method == "HEAD": return b"" if self.chunked: # Fallback to IOBase readline which uses peek() and read() return super().readline(limit) if self.length is not None and (limit < 0 or limit > self.length): limit = self.length result = self.fp.readline(limit) if not result and limit: self._close_conn() elif self.length is not None: self.length -= len(result) return result def _read1_chunked(self, n): # Strictly speaking, _get_chunk_left() may cause more than one read, # but that is ok, since that is to satisfy the chunked protocol. chunk_left = self._get_chunk_left() if chunk_left is None or n == 0: return b'' if not (0 <= n <= chunk_left): n = chunk_left # if n is negative or larger than chunk_left read = self.fp.read1(n) self.chunk_left -= len(read) if not read: raise IncompleteRead(b"") return read def _peek_chunked(self, n): # Strictly speaking, _get_chunk_left() may cause more than one read, # but that is ok, since that is to satisfy the chunked protocol. try: chunk_left = self._get_chunk_left() except IncompleteRead: return b'' # peek doesn't worry about protocol if chunk_left is None: return b'' # eof # peek is allowed to return more than requested. Just request the # entire chunk, and truncate what we get. return self.fp.peek(chunk_left)[:chunk_left] def fileno(self): return self.fp.fileno() def getheader(self, name, default=None): '''Returns the value of the header matching *name*. If there are multiple matching headers, the values are combined into a single string separated by commas and spaces. If no matching header is found, returns *default* or None if the *default* is not specified. If the headers are unknown, raises http.client.ResponseNotReady. ''' if self.headers is None: raise ResponseNotReady() headers = self.headers.get_all(name) or default if isinstance(headers, str) or not hasattr(headers, '__iter__'): return headers else: return ', '.join(headers) def getheaders(self): """Return list of (header, value) tuples.""" if self.headers is None: raise ResponseNotReady() return list(self.headers.items()) # We override IOBase.__iter__ so that it doesn't check for closed-ness def __iter__(self): return self # For compatibility with old-style urllib responses. def info(self): '''Returns an instance of the class mimetools.Message containing meta-information associated with the URL. When the method is HTTP, these headers are those returned by the server at the head of the retrieved HTML page (including Content-Length and Content-Type). When the method is FTP, a Content-Length header will be present if (as is now usual) the server passed back a file length in response to the FTP retrieval request. A Content-Type header will be present if the MIME type can be guessed. When the method is local-file, returned headers will include a Date representing the file's last-modified time, a Content-Length giving file size, and a Content-Type containing a guess at the file's type. See also the description of the mimetools module. ''' return self.headers def geturl(self): '''Return the real URL of the page. In some cases, the HTTP server redirects a client to another URL. The urlopen() function handles this transparently, but in some cases the caller needs to know which URL the client was redirected to. The geturl() method can be used to get at this redirected URL. ''' return self.url def getcode(self): '''Return the HTTP status code that was sent with the response, or None if the URL is not an HTTP URL. ''' return self.status class HTTPConnection: _http_vsn = 11 _http_vsn_str = 'HTTP/1.1' response_class = HTTPResponse default_port = HTTP_PORT auto_open = 1 debuglevel = 0 @staticmethod def _is_textIO(stream): """Test whether a file-like object is a text or a binary stream. """ return isinstance(stream, io.TextIOBase) @staticmethod def _get_content_length(body, method): """Get the content-length based on the body. If the body is None, we set Content-Length: 0 for methods that expect a body (RFC 7230, Section 3.3.2). We also set the Content-Length for any method if the body is a str or bytes-like object and not a file. """ if body is None: # do an explicit check for not None here to distinguish # between unset and set but empty if method.upper() in _METHODS_EXPECTING_BODY: return 0 else: return None if hasattr(body, 'read'): # file-like object. return None try: # does it implement the buffer protocol (bytes, bytearray, array)? mv = memoryview(body) return mv.nbytes except TypeError: pass if isinstance(body, str): return len(body) return None def __init__(self, host, port=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, source_address=None, blocksize=8192): self.timeout = timeout self.source_address = source_address self.blocksize = blocksize self.sock = None self._buffer = [] self.__response = None self.__state = _CS_IDLE self._method = None self._tunnel_host = None self._tunnel_port = None self._tunnel_headers = {} (self.host, self.port) = self._get_hostport(host, port) self._validate_host(self.host) # This is stored as an instance variable to allow unit # tests to replace it with a suitable mockup self._create_connection = socket.create_connection def set_tunnel(self, host, port=None, headers=None): """Set up host and port for HTTP CONNECT tunnelling. In a connection that uses HTTP CONNECT tunneling, the host passed to the constructor is used as a proxy server that relays all communication to the endpoint passed to `set_tunnel`. This done by sending an HTTP CONNECT request to the proxy server when the connection is established. This method must be called before the HTTP connection has been established. The headers argument should be a mapping of extra HTTP headers to send with the CONNECT request. """ if self.sock: raise RuntimeError("Can't set up tunnel for established connection") self._tunnel_host, self._tunnel_port = self._get_hostport(host, port) if headers: self._tunnel_headers = headers else: self._tunnel_headers.clear() def _get_hostport(self, host, port): if port is None: i = host.rfind(':') j = host.rfind(']') # ipv6 addresses have [...] if i > j: try: port = int(host[i+1:]) except ValueError: if host[i+1:] == "": # http://foo.com:/ == http://foo.com/ port = self.default_port else: raise InvalidURL("nonnumeric port: '%s'" % host[i+1:]) host = host[:i] else: port = self.default_port if host and host[0] == '[' and host[-1] == ']': host = host[1:-1] return (host, port) def set_debuglevel(self, level): self.debuglevel = level def _tunnel(self): connect = b"CONNECT %s:%d HTTP/1.0\r\n" % ( self._tunnel_host.encode("ascii"), self._tunnel_port) headers = [connect] for header, value in self._tunnel_headers.items(): headers.append(f"{header}: {value}\r\n".encode("latin-1")) headers.append(b"\r\n") # Making a single send() call instead of one per line encourages # the host OS to use a more optimal packet size instead of # potentially emitting a series of small packets. self.send(b"".join(headers)) del headers response = self.response_class(self.sock, method=self._method) (version, code, message) = response._read_status() if code != http.HTTPStatus.OK: self.close() raise OSError(f"Tunnel connection failed: {code} {message.strip()}") while True: line = response.fp.readline(_MAXLINE + 1) if len(line) > _MAXLINE: raise LineTooLong("header line") if not line: # for sites which EOF without sending a trailer break if line in (b'\r\n', b'\n', b''): break if self.debuglevel > 0: print('header:', line.decode()) def connect(self): """Connect to the host and port specified in __init__.""" sys.audit("http.client.connect", self, self.host, self.port) self.sock = self._create_connection( (self.host,self.port), self.timeout, self.source_address) # Might fail in OSs that don't implement TCP_NODELAY try: self.sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1) except OSError as e: if e.errno != errno.ENOPROTOOPT: raise if self._tunnel_host: self._tunnel() def close(self): """Close the connection to the HTTP server.""" self.__state = _CS_IDLE try: sock = self.sock if sock: self.sock = None sock.close() # close it manually... there may be other refs finally: response = self.__response if response: self.__response = None response.close() def send(self, data): """Send `data' to the server. ``data`` can be a string object, a bytes object, an array object, a file-like object that supports a .read() method, or an iterable object. """ if self.sock is None: if self.auto_open: self.connect() else: raise NotConnected() if self.debuglevel > 0: print("send:", repr(data)) if hasattr(data, "read") : if self.debuglevel > 0: print("sendIng a read()able") encode = self._is_textIO(data) if encode and self.debuglevel > 0: print("encoding file using iso-8859-1") while 1: datablock = data.read(self.blocksize) if not datablock: break if encode: datablock = datablock.encode("iso-8859-1") sys.audit("http.client.send", self, datablock) self.sock.sendall(datablock) return sys.audit("http.client.send", self, data) try: self.sock.sendall(data) except TypeError: if isinstance(data, collections.abc.Iterable): for d in data: self.sock.sendall(d) else: raise TypeError("data should be a bytes-like object " "or an iterable, got %r" % type(data)) def _output(self, s): """Add a line of output to the current request buffer. Assumes that the line does *not* end with \\r\\n. """ self._buffer.append(s) def _read_readable(self, readable): if self.debuglevel > 0: print("sendIng a read()able") encode = self._is_textIO(readable) if encode and self.debuglevel > 0: print("encoding file using iso-8859-1") while True: datablock = readable.read(self.blocksize) if not datablock: break if encode: datablock = datablock.encode("iso-8859-1") yield datablock def _send_output(self, message_body=None, encode_chunked=False): """Send the currently buffered request and clear the buffer. Appends an extra \\r\\n to the buffer. A message_body may be specified, to be appended to the request. """ self._buffer.extend((b"", b"")) msg = b"\r\n".join(self._buffer) del self._buffer[:] self.send(msg) if message_body is not None: # create a consistent interface to message_body if hasattr(message_body, 'read'): # Let file-like take precedence over byte-like. This # is needed to allow the current position of mmap'ed # files to be taken into account. chunks = self._read_readable(message_body) else: try: # this is solely to check to see if message_body # implements the buffer API. it /would/ be easier # to capture if PyObject_CheckBuffer was exposed # to Python. memoryview(message_body) except TypeError: try: chunks = iter(message_body) except TypeError: raise TypeError("message_body should be a bytes-like " "object or an iterable, got %r" % type(message_body)) else: # the object implements the buffer interface and # can be passed directly into socket methods chunks = (message_body,) for chunk in chunks: if not chunk: if self.debuglevel > 0: print('Zero length chunk ignored') continue if encode_chunked and self._http_vsn == 11: # chunked encoding chunk = f'{len(chunk):X}\r\n'.encode('ascii') + chunk \ + b'\r\n' self.send(chunk) if encode_chunked and self._http_vsn == 11: # end chunked transfer self.send(b'0\r\n\r\n') def putrequest(self, method, url, skip_host=False, skip_accept_encoding=False): """Send a request to the server. `method' specifies an HTTP request method, e.g. 'GET'. `url' specifies the object being requested, e.g. '/index.html'. `skip_host' if True does not add automatically a 'Host:' header `skip_accept_encoding' if True does not add automatically an 'Accept-Encoding:' header """ # if a prior response has been completed, then forget about it. if self.__response and self.__response.isclosed(): self.__response = None # in certain cases, we cannot issue another request on this connection. # this occurs when: # 1) we are in the process of sending a request. (_CS_REQ_STARTED) # 2) a response to a previous request has signalled that it is going # to close the connection upon completion. # 3) the headers for the previous response have not been read, thus # we cannot determine whether point (2) is true. (_CS_REQ_SENT) # # if there is no prior response, then we can request at will. # # if point (2) is true, then we will have passed the socket to the # response (effectively meaning, "there is no prior response"), and # will open a new one when a new request is made. # # Note: if a prior response exists, then we *can* start a new request. # We are not allowed to begin fetching the response to this new # request, however, until that prior response is complete. # if self.__state == _CS_IDLE: self.__state = _CS_REQ_STARTED else: raise CannotSendRequest(self.__state) self._validate_method(method) # Save the method for use later in the response phase self._method = method url = url or '/' self._validate_path(url) request = '%s %s %s' % (method, url, self._http_vsn_str) self._output(self._encode_request(request)) if self._http_vsn == 11: # Issue some standard headers for better HTTP/1.1 compliance if not skip_host: # this header is issued *only* for HTTP/1.1 # connections. more specifically, this means it is # only issued when the client uses the new # HTTPConnection() class. backwards-compat clients # will be using HTTP/1.0 and those clients may be # issuing this header themselves. we should NOT issue # it twice; some web servers (such as Apache) barf # when they see two Host: headers # If we need a non-standard port,include it in the # header. If the request is going through a proxy, # but the host of the actual URL, not the host of the # proxy. netloc = '' if url.startswith('http'): nil, netloc, nil, nil, nil = urlsplit(url) if netloc: try: netloc_enc = netloc.encode("ascii") except UnicodeEncodeError: netloc_enc = netloc.encode("idna") self.putheader('Host', netloc_enc) else: if self._tunnel_host: host = self._tunnel_host port = self._tunnel_port else: host = self.host port = self.port try: host_enc = host.encode("ascii") except UnicodeEncodeError: host_enc = host.encode("idna") # As per RFC 273, IPv6 address should be wrapped with [] # when used as Host header if host.find(':') >= 0: host_enc = b'[' + host_enc + b']' if port == self.default_port: self.putheader('Host', host_enc) else: host_enc = host_enc.decode("ascii") self.putheader('Host', "%s:%s" % (host_enc, port)) # note: we are assuming that clients will not attempt to set these # headers since *this* library must deal with the # consequences. this also means that when the supporting # libraries are updated to recognize other forms, then this # code should be changed (removed or updated). # we only want a Content-Encoding of "identity" since we don't # support encodings such as x-gzip or x-deflate. if not skip_accept_encoding: self.putheader('Accept-Encoding', 'identity') # we can accept "chunked" Transfer-Encodings, but no others # NOTE: no TE header implies *only* "chunked" #self.putheader('TE', 'chunked') # if TE is supplied in the header, then it must appear in a # Connection header. #self.putheader('Connection', 'TE') else: # For HTTP/1.0, the server will assume "not chunked" pass def _encode_request(self, request): # ASCII also helps prevent CVE-2019-9740. return request.encode('ascii') def _validate_method(self, method): """Validate a method name for putrequest.""" # prevent http header injection match = _contains_disallowed_method_pchar_re.search(method) if match: raise ValueError( f"method can't contain control characters. {method!r} " f"(found at least {match.group()!r})") def _validate_path(self, url): """Validate a url for putrequest.""" # Prevent CVE-2019-9740. match = _contains_disallowed_url_pchar_re.search(url) if match: raise InvalidURL(f"URL can't contain control characters. {url!r} " f"(found at least {match.group()!r})") def _validate_host(self, host): """Validate a host so it doesn't contain control characters.""" # Prevent CVE-2019-18348. match = _contains_disallowed_url_pchar_re.search(host) if match: raise InvalidURL(f"URL can't contain control characters. {host!r} " f"(found at least {match.group()!r})") def putheader(self, header, *values): """Send a request header line to the server. For example: h.putheader('Accept', 'text/html') """ if self.__state != _CS_REQ_STARTED: raise CannotSendHeader() if hasattr(header, 'encode'): header = header.encode('ascii') if not _is_legal_header_name(header): raise ValueError('Invalid header name %r' % (header,)) values = list(values) for i, one_value in enumerate(values): if hasattr(one_value, 'encode'): values[i] = one_value.encode('latin-1') elif isinstance(one_value, int): values[i] = str(one_value).encode('ascii') if _is_illegal_header_value(values[i]): raise ValueError('Invalid header value %r' % (values[i],)) value = b'\r\n\t'.join(values) header = header + b': ' + value self._output(header) def endheaders(self, message_body=None, *, encode_chunked=False): """Indicate that the last header line has been sent to the server. This method sends the request to the server. The optional message_body argument can be used to pass a message body associated with the request. """ if self.__state == _CS_REQ_STARTED: self.__state = _CS_REQ_SENT else: raise CannotSendHeader() self._send_output(message_body, encode_chunked=encode_chunked) def request(self, method, url, body=None, headers={}, *, encode_chunked=False): """Send a complete request to the server.""" self._send_request(method, url, body, headers, encode_chunked) def _send_request(self, method, url, body, headers, encode_chunked): # Honor explicitly requested Host: and Accept-Encoding: headers. header_names = frozenset(k.lower() for k in headers) skips = {} if 'host' in header_names: skips['skip_host'] = 1 if 'accept-encoding' in header_names: skips['skip_accept_encoding'] = 1 self.putrequest(method, url, **skips) # chunked encoding will happen if HTTP/1.1 is used and either # the caller passes encode_chunked=True or the following # conditions hold: # 1. content-length has not been explicitly set # 2. the body is a file or iterable, but not a str or bytes-like # 3. Transfer-Encoding has NOT been explicitly set by the caller if 'content-length' not in header_names: # only chunk body if not explicitly set for backwards # compatibility, assuming the client code is already handling the # chunking if 'transfer-encoding' not in header_names: # if content-length cannot be automatically determined, fall # back to chunked encoding encode_chunked = False content_length = self._get_content_length(body, method) if content_length is None: if body is not None: if self.debuglevel > 0: print('Unable to determine size of %r' % body) encode_chunked = True self.putheader('Transfer-Encoding', 'chunked') else: self.putheader('Content-Length', str(content_length)) else: encode_chunked = False for hdr, value in headers.items(): self.putheader(hdr, value) if isinstance(body, str): # RFC 2616 Section 3.7.1 says that text default has a # default charset of iso-8859-1. body = _encode(body, 'body') self.endheaders(body, encode_chunked=encode_chunked) def getresponse(self): """Get the response from the server. If the HTTPConnection is in the correct state, returns an instance of HTTPResponse or of whatever object is returned by the response_class variable. If a request has not been sent or if a previous response has not be handled, ResponseNotReady is raised. If the HTTP response indicates that the connection should be closed, then it will be closed before the response is returned. When the connection is closed, the underlying socket is closed. """ # if a prior response has been completed, then forget about it. if self.__response and self.__response.isclosed(): self.__response = None # if a prior response exists, then it must be completed (otherwise, we # cannot read this response's header to determine the connection-close # behavior) # # note: if a prior response existed, but was connection-close, then the # socket and response were made independent of this HTTPConnection # object since a new request requires that we open a whole new # connection # # this means the prior response had one of two states: # 1) will_close: this connection was reset and the prior socket and # response operate independently # 2) persistent: the response was retained and we await its # isclosed() status to become true. # if self.__state != _CS_REQ_SENT or self.__response: raise ResponseNotReady(self.__state) if self.debuglevel > 0: response = self.response_class(self.sock, self.debuglevel, method=self._method) else: response = self.response_class(self.sock, method=self._method) try: try: response.begin() except ConnectionError: self.close() raise assert response.will_close != _UNKNOWN self.__state = _CS_IDLE if response.will_close: # this effectively passes the connection to the response self.close() else: # remember this, so we can tell when it is complete self.__response = response return response except: response.close() raise try: import ssl except ImportError: pass else: class HTTPSConnection(HTTPConnection): "This class allows communication via SSL." default_port = HTTPS_PORT # XXX Should key_file and cert_file be deprecated in favour of context? def __init__(self, host, port=None, key_file=None, cert_file=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, source_address=None, *, context=None, check_hostname=None, blocksize=8192): super(HTTPSConnection, self).__init__(host, port, timeout, source_address, blocksize=blocksize) if (key_file is not None or cert_file is not None or check_hostname is not None): import warnings warnings.warn("key_file, cert_file and check_hostname are " "deprecated, use a custom context instead.", DeprecationWarning, 2) self.key_file = key_file self.cert_file = cert_file if context is None: context = ssl._create_default_https_context() # send ALPN extension to indicate HTTP/1.1 protocol if self._http_vsn == 11: context.set_alpn_protocols(['http/1.1']) # enable PHA for TLS 1.3 connections if available if context.post_handshake_auth is not None: context.post_handshake_auth = True will_verify = context.verify_mode != ssl.CERT_NONE if check_hostname is None: check_hostname = context.check_hostname if check_hostname and not will_verify: raise ValueError("check_hostname needs a SSL context with " "either CERT_OPTIONAL or CERT_REQUIRED") if key_file or cert_file: context.load_cert_chain(cert_file, key_file) # cert and key file means the user wants to authenticate. # enable TLS 1.3 PHA implicitly even for custom contexts. if context.post_handshake_auth is not None: context.post_handshake_auth = True self._context = context if check_hostname is not None: self._context.check_hostname = check_hostname def connect(self): "Connect to a host on a given (SSL) port." super().connect() if self._tunnel_host: server_hostname = self._tunnel_host else: server_hostname = self.host self.sock = self._context.wrap_socket(self.sock, server_hostname=server_hostname) __all__.append("HTTPSConnection") class HTTPException(Exception): # Subclasses that define an __init__ must call Exception.__init__ # or define self.args. Otherwise, str() will fail. pass class NotConnected(HTTPException): pass class InvalidURL(HTTPException): pass class UnknownProtocol(HTTPException): def __init__(self, version): self.args = version, self.version = version class UnknownTransferEncoding(HTTPException): pass class UnimplementedFileMode(HTTPException): pass class IncompleteRead(HTTPException): def __init__(self, partial, expected=None): self.args = partial, self.partial = partial self.expected = expected def __repr__(self): if self.expected is not None: e = ', %i more expected' % self.expected else: e = '' return '%s(%i bytes read%s)' % (self.__class__.__name__, len(self.partial), e) __str__ = object.__str__ class ImproperConnectionState(HTTPException): pass class CannotSendRequest(ImproperConnectionState): pass class CannotSendHeader(ImproperConnectionState): pass class ResponseNotReady(ImproperConnectionState): pass class BadStatusLine(HTTPException): def __init__(self, line): if not line: line = repr(line) self.args = line, self.line = line class LineTooLong(HTTPException): def __init__(self, line_type): HTTPException.__init__(self, "got more than %d bytes when reading %s" % (_MAXLINE, line_type)) class RemoteDisconnected(ConnectionResetError, BadStatusLine): def __init__(self, *pos, **kw): BadStatusLine.__init__(self, "") ConnectionResetError.__init__(self, *pos, **kw) # for backwards compatibility error = HTTPException 解析这些代码 怎么联接这个服务器
06-19
headers = {"User-Agent": "Python-Client"} # 设置请求头部 conn.request("GET", "/", headers=headers) # 发送GET请求 ``` #### 3. 获取响应 调用`getresponse`方法以获取服务器的响应。这将返回一个`...
/* * Copyright (C) 2024 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.server.pinner; import static android.app.ActivityManager.UID_OBSERVER_ACTIVE; import static android.app.ActivityManager.UID_OBSERVER_GONE; import static android.os.Process.SYSTEM_UID; import static com.android.server.flags.Flags.pinGlobalQuota; import static com.android.server.flags.Flags.pinWebview; import android.annotation.EnforcePermission; import android.annotation.IntDef; import android.annotation.NonNull; import android.annotation.Nullable; import android.app.ActivityManager; import android.app.ActivityManagerInternal; import android.app.IActivityManager; import android.app.UidObserver; import android.app.pinner.IPinnerService; import android.app.pinner.PinnedFileStat; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.pm.ActivityInfo; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.database.ContentObserver; import android.net.Uri; import android.os.Binder; import android.os.Build; import android.os.Handler; import android.os.HandlerExecutor; import android.os.Looper; import android.os.Message; import android.os.Process; import android.os.RemoteException; import android.os.ResultReceiver; import android.os.ShellCallback; import android.os.SystemProperties; import android.os.UserHandle; import android.os.UserManager; import android.provider.DeviceConfig; import android.provider.DeviceConfigInterface; import android.provider.MediaStore; import android.provider.Settings; import android.system.ErrnoException; import android.system.Os; import android.system.OsConstants; import android.util.ArrayMap; import android.util.ArraySet; import android.util.Slog; import com.android.internal.annotations.GuardedBy; import com.android.internal.annotations.VisibleForTesting; import com.android.internal.app.ResolverActivity; import com.android.internal.os.BackgroundThread; import com.android.internal.util.DumpUtils; import com.android.internal.util.function.pooled.PooledLambda; import com.android.server.LocalServices; import com.android.server.SystemService; import com.android.server.wm.ActivityTaskManagerInternal; import dalvik.system.DexFile; import dalvik.system.VMRuntime; import system.ext.loader.core.ExtLoader; import java.io.FileDescriptor; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.Collection; import java.util.HashSet; import java.util.List; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; import sun.misc.Unsafe; // #ifdef OPLUS_EXTENSION_HOOK // Haoran.Xu@ROM.Framework, 2021/07/12, Modify for ALM:1770593 import com.android.server.IPinnerServiceExt; // #endif /* OPLUS_EXTENSION_HOOK */ /** * <p>PinnerService pins important files for key processes in memory.</p> * <p>Files to pin are specified in the config_defaultPinnerServiceFiles * overlay.</p> * <p>Pin the default camera application if specified in config_pinnerCameraApp.</p> * <p>(Optional) Pin experimental carveout regions based on DeviceConfig flags.</p> */ public final class PinnerService extends SystemService { private static final boolean DEBUG = false; private static final String TAG = "PinnerService"; private static final String PIN_META_FILENAME = "pinlist.meta"; private static final int PAGE_SIZE = (int) Os.sysconf(OsConstants._SC_PAGESIZE); private static final int MATCH_FLAGS = PackageManager.MATCH_DEFAULT_ONLY | PackageManager.MATCH_DIRECT_BOOT_AWARE | PackageManager.MATCH_DIRECT_BOOT_UNAWARE; private static final int KEY_CAMERA = 0; private static final int KEY_HOME = 1; private static final int KEY_ASSISTANT = 2; // Pin using pinlist.meta when pinning apps. private static boolean PROP_PIN_PINLIST = SystemProperties.getBoolean("pinner.use_pinlist", true); public static final String ANON_REGION_STAT_NAME = "[anon]"; private static final String SYSTEM_GROUP_NAME = "system"; @IntDef({KEY_CAMERA, KEY_HOME, KEY_ASSISTANT}) @Retention(RetentionPolicy.SOURCE) public @interface AppKey {} private final Context mContext; private final Injector mInjector; private final DeviceConfigInterface mDeviceConfigInterface; private final ActivityTaskManagerInternal mAtmInternal; private final ActivityManagerInternal mAmInternal; private final IActivityManager mAm; private final UserManager mUserManager; /** The list of the statically pinned files. */ @GuardedBy("this") private final ArrayMap<String, PinnedFile> mPinnedFiles = new ArrayMap<>(); /** The list of the pinned apps. This is a map from {@link AppKey} to a pinned app. */ @GuardedBy("this") private final ArrayMap<Integer, PinnedApp> mPinnedApps = new ArrayMap<>(); /** * The list of the pinned apps that need to be repinned as soon as the all processes of a given * uid are no longer active. Note that with background dex opt, the new dex/vdex files are only * loaded into the processes once it restarts. So in case background dex opt recompiled these * files, we still need to keep the old ones pinned until the processes restart. * <p> * This is a map from uid to {@link AppKey} */ @GuardedBy("this") private final ArrayMap<Integer, Integer> mPendingRepin = new ArrayMap<>(); /** * A set of {@link AppKey} that are configured to be pinned. */ @GuardedBy("this") private ArraySet<Integer> mPinKeys; // Note that we don't use the `_BOOT` namespace for anonymous pinnings, as we want // them to be responsive to dynamic flag changes for experimentation. private static final String DEVICE_CONFIG_NAMESPACE_ANON_SIZE = DeviceConfig.NAMESPACE_RUNTIME_NATIVE; private static final String DEVICE_CONFIG_KEY_ANON_SIZE = "pin_shared_anon_size"; private static final long DEFAULT_ANON_SIZE = SystemProperties.getLong("pinner.pin_shared_anon_size", 0); private static final long MAX_ANON_SIZE = 2L * (1L << 30); // 2GB private long mPinAnonSize; private long mPinAnonAddress; private long mCurrentlyPinnedAnonSize; // Resource-configured pinner flags; private final boolean mConfiguredToPinCamera; private final int mConfiguredCameraPinBytes; private final int mConfiguredHomePinBytes; private final boolean mConfiguredToPinAssistant; private final int mConfiguredAssistantPinBytes; private final int mConfiguredWebviewPinBytes; // This is the percentage of total device memory that will be used to set the global quota. private final int mConfiguredMaxPinnedMemoryPercentage; // This is the global pinner quota that can be pinned. private long mConfiguredMaxPinnedMemory; // This is the currently pinned memory. private long mCurrentPinnedMemory = 0; private BinderService mBinderService; private PinnerHandler mPinnerHandler = null; // #ifdef OPLUS_EXTENSION_HOOK // Haoran.Xu@ROM.Framework, 2021/07/12, Modify for ALM:1770593 public IPinnerServiceExt mPinnerServiceExt = ExtLoader.type(IPinnerServiceExt.class).create(); // #endif /* OPLUS_EXTENSION_HOOK */ private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { // If an app has updated, update pinned files accordingly. if (Intent.ACTION_PACKAGE_REPLACED.equals(intent.getAction())) { Uri packageUri = intent.getData(); String packageName = packageUri.getSchemeSpecificPart(); ArraySet<String> updatedPackages = new ArraySet<>(); updatedPackages.add(packageName); update(updatedPackages, true /* force */); } } }; private final DeviceConfig.OnPropertiesChangedListener mDeviceConfigAnonSizeListener = new DeviceConfig.OnPropertiesChangedListener() { @Override public void onPropertiesChanged(DeviceConfig.Properties properties) { if (DEVICE_CONFIG_NAMESPACE_ANON_SIZE.equals(properties.getNamespace()) && properties.getKeyset().contains(DEVICE_CONFIG_KEY_ANON_SIZE)) { refreshPinAnonConfig(); } } }; /** Utility class for testing. */ @VisibleForTesting public static class Injector { protected DeviceConfigInterface getDeviceConfigInterface() { return DeviceConfigInterface.REAL; } protected void publishBinderService(PinnerService service, Binder binderService) { service.publishBinderService("pinner", binderService); } protected PinnedFile pinFileInternal(PinnerService service, String fileToPin, long maxBytesToPin, boolean attemptPinIntrospection) { return service.pinFileInternal(fileToPin, maxBytesToPin, attemptPinIntrospection); } } public PinnerService(Context context) { this(context, new Injector()); } @VisibleForTesting public PinnerService(Context context, Injector injector) { super(context); mContext = context; mInjector = injector; mDeviceConfigInterface = mInjector.getDeviceConfigInterface(); mConfiguredToPinCamera = context.getResources().getBoolean( com.android.internal.R.bool.config_pinnerCameraApp); mConfiguredCameraPinBytes = context.getResources().getInteger( com.android.internal.R.integer.config_pinnerCameraPinBytes); mConfiguredAssistantPinBytes = context.getResources().getInteger( com.android.internal.R.integer.config_pinnerAssistantPinBytes); mConfiguredHomePinBytes = context.getResources().getInteger( com.android.internal.R.integer.config_pinnerHomePinBytes); mConfiguredToPinAssistant = context.getResources().getBoolean( com.android.internal.R.bool.config_pinnerAssistantApp); mConfiguredWebviewPinBytes = context.getResources().getInteger( com.android.internal.R.integer.config_pinnerWebviewPinBytes); mConfiguredMaxPinnedMemoryPercentage = context.getResources().getInteger( com.android.internal.R.integer.config_pinnerMaxPinnedMemoryPercentage); mPinKeys = createPinKeys(); mPinnerHandler = new PinnerHandler(BackgroundThread.get().getLooper()); mAtmInternal = LocalServices.getService(ActivityTaskManagerInternal.class); mAmInternal = LocalServices.getService(ActivityManagerInternal.class); mAm = ActivityManager.getService(); mUserManager = mContext.getSystemService(UserManager.class); IntentFilter filter = new IntentFilter(); filter.addAction(Intent.ACTION_PACKAGE_REPLACED); filter.addDataScheme("package"); mContext.registerReceiver(mBroadcastReceiver, filter); registerUidListener(); registerUserSetupCompleteListener(); mDeviceConfigInterface.addOnPropertiesChangedListener(DEVICE_CONFIG_NAMESPACE_ANON_SIZE, new HandlerExecutor(mPinnerHandler), mDeviceConfigAnonSizeListener); } @Override public void onStart() { if (DEBUG) { Slog.i(TAG, "Starting PinnerService"); } mConfiguredMaxPinnedMemory = (Process.getTotalMemory() * Math.clamp(mConfiguredMaxPinnedMemoryPercentage, 0, 100)) / 100; mBinderService = new BinderService(); mInjector.publishBinderService(this, mBinderService); publishLocalService(PinnerService.class, this); mPinnerHandler.obtainMessage(PinnerHandler.PIN_ONSTART_MSG).sendToTarget(); sendPinAppsMessage(UserHandle.USER_SYSTEM); } /** * Repin apps on user switch. * <p> * If more than one user is using the device each user may set a different preference for the * individual apps. Make sure that user's preference is pinned into memory. */ @Override public void onUserSwitching(@Nullable TargetUser from, @NonNull TargetUser to) { int userId = to.getUserIdentifier(); if (!mUserManager.isManagedProfile(userId)) { sendPinAppsMessage(userId); } } @Override public void onUserUnlocking(@NonNull TargetUser user) { final int userId = user.getUserIdentifier(); if (userId != UserHandle.USER_SYSTEM && !mUserManager.isManagedProfile(userId)) { // App pinning for the system should have already been triggered from onStart(). sendPinAppsMessage(userId); } } /** * Update the currently pinned files. * Specifically, this only updates pinning for the apps that need to be pinned. * The other files pinned in onStart will not need to be updated. */ public void update(ArraySet<String> updatedPackages, boolean force) { ArraySet<Integer> pinKeys = getPinKeys(); int currentUser = ActivityManager.getCurrentUser(); for (int i = pinKeys.size() - 1; i >= 0; i--) { int key = pinKeys.valueAt(i); ApplicationInfo info = getInfoForKey(key, currentUser); if (info != null && updatedPackages.contains(info.packageName)) { Slog.i(TAG, "Updating pinned files for " + info.packageName + " force=" + force); sendPinAppMessage(key, currentUser, force); } } // #ifdef OPLUS_EXTENSION_HOOK // Haoran.Xu@ROM.Framework, 2021/07/12, Modify for ALM:1770593 mPinnerServiceExt.updateExt(updatedPackages, force); // #endif /* OPLUS_EXTENSION_HOOK */ } /** Returns information about pinned files and sizes for StatsPullAtomService. */ public List<PinnedFileStats> dumpDataForStatsd() { List<PinnedFileStats> pinnedFileStats = new ArrayList<>(); synchronized (PinnerService.this) { for (PinnedFile pinnedFile : mPinnedFiles.values()) { pinnedFileStats.add(new PinnedFileStats(SYSTEM_UID, pinnedFile)); } for (int key : mPinnedApps.keySet()) { PinnedApp app = mPinnedApps.get(key); for (PinnedFile pinnedFile : mPinnedApps.get(key).mFiles) { pinnedFileStats.add(new PinnedFileStats(app.uid, pinnedFile)); } } } return pinnedFileStats; } /** Wrapper class for statistics for a pinned file. */ public static class PinnedFileStats { public final int uid; public final String filename; public final int sizeKb; protected PinnedFileStats(int uid, PinnedFile file) { this.uid = uid; this.filename = file.fileName.substring(file.fileName.lastIndexOf('/') + 1); this.sizeKb = (int) file.bytesPinned / 1024; } } /** * Handler for on start pinning message */ private void handlePinOnStart() { // Files to pin come from the overlay and can be specified per-device config String[] filesToPin = mContext.getResources().getStringArray( com.android.internal.R.array.config_defaultPinnerServiceFiles); // #ifdef OPLUS_EXTENSION_HOOK // Chucheng.Ye@ANDROID.RESCONTROL, 2021/08/03, add for customize pinner file. filesToPin = mPinnerServiceExt.replaceDefaultFiles(filesToPin); // #endif /* OPLUS_EXTENSION_HOOK */ // Continue trying to pin each file even if we fail to pin some of them for (String fileToPin : filesToPin) { pinFile(fileToPin, Integer.MAX_VALUE, /*appInfo=*/null, /*groupName=*/SYSTEM_GROUP_NAME, true); } refreshPinAnonConfig(); } /** * Registers a listener to repin the home app when user setup is complete, as the home intent * initially resolves to setup wizard, but once setup is complete, it will resolve to the * regular home app. */ private void registerUserSetupCompleteListener() { Uri userSetupCompleteUri = Settings.Secure.getUriFor(Settings.Secure.USER_SETUP_COMPLETE); mContext.getContentResolver().registerContentObserver( userSetupCompleteUri, false, new ContentObserver(null) { @Override public void onChange(boolean selfChange, Uri uri) { if (userSetupCompleteUri.equals(uri)) { if (mConfiguredHomePinBytes > 0) { sendPinAppMessage(KEY_HOME, ActivityManager.getCurrentUser(), true /* force */); } } } }, UserHandle.USER_ALL); } private void registerUidListener() { try { mAm.registerUidObserver(new UidObserver() { @Override public void onUidGone(int uid, boolean disabled) { mPinnerHandler.sendMessage(PooledLambda.obtainMessage( PinnerService::handleUidGone, PinnerService.this, uid)); } @Override public void onUidActive(int uid) { mPinnerHandler.sendMessage(PooledLambda.obtainMessage( PinnerService::handleUidActive, PinnerService.this, uid)); } }, UID_OBSERVER_GONE | UID_OBSERVER_ACTIVE, 0, null); } catch (RemoteException e) { Slog.e(TAG, "Failed to register uid observer", e); } } private void handleUidGone(int uid) { updateActiveState(uid, false /* active */); int key; synchronized (this) { // In case we have a pending repin, repin now. See mPendingRepin for more information. key = mPendingRepin.getOrDefault(uid, -1); if (key == -1) { return; } mPendingRepin.remove(uid); } pinApp(key, ActivityManager.getCurrentUser(), false /* force */); } private void handleUidActive(int uid) { updateActiveState(uid, true /* active */); } private void updateActiveState(int uid, boolean active) { synchronized (this) { for (int i = mPinnedApps.size() - 1; i >= 0; i--) { PinnedApp app = mPinnedApps.valueAt(i); if (app.uid == uid) { app.active = active; } } } } private void unpinApps() { ArraySet<Integer> pinKeys = getPinKeys(); for (int i = pinKeys.size() - 1; i >= 0; i--) { int key = pinKeys.valueAt(i); unpinApp(key); } } private void unpinApp(@AppKey int key) { ArrayList<PinnedFile> pinnedAppFiles; synchronized (this) { PinnedApp app = mPinnedApps.get(key); if (app == null) { return; } mPinnedApps.remove(key); pinnedAppFiles = new ArrayList<>(app.mFiles); } for (PinnedFile pinnedFile : pinnedAppFiles) { unpinFile(pinnedFile.fileName); } } private boolean isResolverActivity(ActivityInfo info) { return ResolverActivity.class.getName().equals(info.name); } public int getWebviewPinQuota() { if (!pinWebview()) { return 0; } int quota = mConfiguredWebviewPinBytes; int overrideQuota = SystemProperties.getInt("pinner.pin_webview_size", -1); if (overrideQuota != -1) { // Quota was overridden quota = overrideQuota; } return quota; } private ApplicationInfo getCameraInfo(int userHandle) { Intent cameraIntent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA); ApplicationInfo info = getApplicationInfoForIntent( cameraIntent, userHandle, false /* defaultToSystemApp */); // If the STILL_IMAGE_CAMERA intent doesn't resolve, try the _SECURE intent. // We don't use _SECURE first because it will never get set on a device // without File-based Encryption. But if the user has only set the intent // before unlocking their device, we may still be able to identify their // preference using this intent. if (info == null) { cameraIntent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE); info = getApplicationInfoForIntent( cameraIntent, userHandle, false /* defaultToSystemApp */); } // If the _SECURE intent doesn't resolve, try the original intent but request // the system app for camera if there was more than one result. if (info == null) { cameraIntent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA); info = getApplicationInfoForIntent( cameraIntent, userHandle, true /* defaultToSystemApp */); } return info; } private ApplicationInfo getHomeInfo(int userHandle) { Intent intent = mAtmInternal.getHomeIntent(); return getApplicationInfoForIntent(intent, userHandle, false); } private ApplicationInfo getAssistantInfo(int userHandle) { Intent intent = new Intent(Intent.ACTION_ASSIST); return getApplicationInfoForIntent(intent, userHandle, true); } private ApplicationInfo getApplicationInfoForIntent( Intent intent, int userHandle, boolean defaultToSystemApp) { if (intent == null) { return null; } ResolveInfo resolveInfo = mContext.getPackageManager().resolveActivityAsUser(intent, MATCH_FLAGS, userHandle); // If this intent can resolve to only one app, choose that one. // Otherwise, if we've requested to default to the system app, return it; // if we have not requested that default, return null if there's more than one option. // If there's more than one system app, return null since we don't know which to pick. if (resolveInfo == null) { return null; } if (!isResolverActivity(resolveInfo.activityInfo)) { return resolveInfo.activityInfo.applicationInfo; } if (defaultToSystemApp) { List<ResolveInfo> infoList = mContext.getPackageManager().queryIntentActivitiesAsUser( intent, MATCH_FLAGS, userHandle); ApplicationInfo systemAppInfo = null; for (ResolveInfo info : infoList) { if ((info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { if (systemAppInfo == null) { systemAppInfo = info.activityInfo.applicationInfo; } else { // If there's more than one system app, return null due to ambiguity. return null; } } } return systemAppInfo; } return null; } private void sendPinAppsMessage(int userHandle) { mPinnerHandler.sendMessage( PooledLambda.obtainMessage(PinnerService::pinApps, this, userHandle)); } private void sendPinAppsWithUpdatedKeysMessage(int userHandle) { mPinnerHandler.sendMessage(PooledLambda.obtainMessage( PinnerService::pinAppsWithUpdatedKeys, this, userHandle)); } private void sendUnpinAppsMessage() { mPinnerHandler.sendMessage(PooledLambda.obtainMessage(PinnerService::unpinApps, this)); } private ArraySet<Integer> createPinKeys() { ArraySet<Integer> pinKeys = new ArraySet<>(); // Pin the camera application. Default to the system property only if the experiment // phenotype property is not set. boolean shouldPinCamera = mConfiguredToPinCamera && mDeviceConfigInterface.getBoolean(DeviceConfig.NAMESPACE_RUNTIME_NATIVE_BOOT, "pin_camera", SystemProperties.getBoolean("pinner.pin_camera", true)); if (shouldPinCamera) { pinKeys.add(KEY_CAMERA); } else if (DEBUG) { Slog.i(TAG, "Pinner - skip pinning camera app"); } if (mConfiguredHomePinBytes > 0) { pinKeys.add(KEY_HOME); } if (mConfiguredToPinAssistant) { pinKeys.add(KEY_ASSISTANT); } return pinKeys; } private synchronized ArraySet<Integer> getPinKeys() { return mPinKeys; } private void pinApps(int userHandle) { pinAppsInternal(userHandle, false); } private void pinAppsWithUpdatedKeys(int userHandle) { pinAppsInternal(userHandle, true); } /** * @param updateKeys True if the pinned app list has to be updated. This is true only when * "pinner repin" shell command is requested. */ private void pinAppsInternal(int userHandle, boolean updateKeys) { if (updateKeys) { ArraySet<Integer> newKeys = createPinKeys(); synchronized (this) { // This code path demands preceding unpinApps() call. if (!mPinnedApps.isEmpty()) { Slog.e(TAG, "Attempted to update a list of apps, " + "but apps were already pinned. Skipping."); return; } mPinKeys = newKeys; } } ArraySet<Integer> currentPinKeys = getPinKeys(); for (int i = currentPinKeys.size() - 1; i >= 0; i--) { int key = currentPinKeys.valueAt(i); pinApp(key, userHandle, true /* force */); } } /** * @see #pinApp(int, int, boolean) */ private void sendPinAppMessage(int key, int userHandle, boolean force) { mPinnerHandler.sendMessage( PooledLambda.obtainMessage(PinnerService::pinApp, this, key, userHandle, force)); } /** * Pins an app of a specific type {@code key}. * * @param force If false, this will not repin the app if it's currently active. See * {@link #mPendingRepin}. */ private void pinApp(int key, int userHandle, boolean force) { int uid = getUidForKey(key); // In case the app is currently active, don't repin until next process restart. See // mPendingRepin for more information. if (!force && uid != -1) { synchronized (this) { mPendingRepin.put(uid, key); } return; } ApplicationInfo info = getInfoForKey(key, userHandle); unpinApp(key); if (info != null) { pinAppInternal(key, info); } } /** * Checks whether the pinned package with {@code key} is active or not. * @return The uid of the pinned app, or {@code -1} otherwise. */ private int getUidForKey(@AppKey int key) { synchronized (this) { PinnedApp existing = mPinnedApps.get(key); return existing != null && existing.active ? existing.uid : -1; } } /** * Retrieves the current application info for the given app type. * * @param key The app type to retrieve the info for. * @param userHandle The user id of the current user. */ private @Nullable ApplicationInfo getInfoForKey(@AppKey int key, int userHandle) { switch (key) { case KEY_CAMERA: return getCameraInfo(userHandle); case KEY_HOME: return getHomeInfo(userHandle); case KEY_ASSISTANT: return getAssistantInfo(userHandle); default: return null; } } /** * @return The app type name for {@code key}. */ private String getNameForKey(@AppKey int key) { switch (key) { case KEY_CAMERA: return "Camera"; case KEY_HOME: return "Home"; case KEY_ASSISTANT: return "Assistant"; default: return ""; } } /** * Handle any changes in the anon region pinner config. */ private void refreshPinAnonConfig() { long newPinAnonSize = mDeviceConfigInterface.getLong( DEVICE_CONFIG_NAMESPACE_ANON_SIZE, DEVICE_CONFIG_KEY_ANON_SIZE, DEFAULT_ANON_SIZE); newPinAnonSize = Math.max(0, Math.min(newPinAnonSize, MAX_ANON_SIZE)); if (newPinAnonSize != mPinAnonSize) { mPinAnonSize = newPinAnonSize; pinAnonRegion(); } } /** * Pin an empty anonymous region. This should only be used for ablation experiments. */ private void pinAnonRegion() { if (mPinAnonSize == 0) { Slog.d(TAG, "pinAnonRegion: releasing pinned region"); unpinAnonRegion(); return; } long alignedPinSize = mPinAnonSize; if (alignedPinSize % PAGE_SIZE != 0) { alignedPinSize -= alignedPinSize % PAGE_SIZE; Slog.e(TAG, "pinAnonRegion: aligning size to " + alignedPinSize); } if (mPinAnonAddress != 0) { if (mCurrentlyPinnedAnonSize == alignedPinSize) { Slog.d(TAG, "pinAnonRegion: already pinned region of size " + alignedPinSize); return; } Slog.d(TAG, "pinAnonRegion: resetting pinned region for new size " + alignedPinSize); unpinAnonRegion(); } long address = 0; try { // Map as SHARED to avoid changing rss.anon for system_server (per /proc/*/status). // The mapping is visible in other rss metrics, and as private dirty in smaps/meminfo. address = Os.mmap(0, alignedPinSize, OsConstants.PROT_READ | OsConstants.PROT_WRITE, OsConstants.MAP_SHARED | OsConstants.MAP_ANONYMOUS, new FileDescriptor(), /*offset=*/0); Unsafe tempUnsafe = null; Class<sun.misc.Unsafe> clazz = sun.misc.Unsafe.class; for (java.lang.reflect.Field f : clazz.getDeclaredFields()) { f.setAccessible(true); Object obj = f.get(null); if (clazz.isInstance(obj)) { tempUnsafe = clazz.cast(obj); } } if (tempUnsafe == null) { throw new Exception("Couldn't get Unsafe"); } Method setMemory = clazz.getMethod("setMemory", long.class, long.class, byte.class); setMemory.invoke(tempUnsafe, address, alignedPinSize, (byte) 1); Os.mlock(address, alignedPinSize); mCurrentlyPinnedAnonSize = alignedPinSize; mPinAnonAddress = address; address = -1; Slog.w(TAG, "pinAnonRegion success, size=" + mCurrentlyPinnedAnonSize); } catch (Exception ex) { Slog.e(TAG, "Could not pin anon region of size " + alignedPinSize, ex); return; } finally { if (address >= 0) { PinnerUtils.safeMunmap(address, alignedPinSize); } } } private void unpinAnonRegion() { if (mPinAnonAddress != 0) { PinnerUtils.safeMunmap(mPinAnonAddress, mCurrentlyPinnedAnonSize); } mPinAnonAddress = 0; mCurrentlyPinnedAnonSize = 0; } /** * @return The maximum amount of bytes to be pinned for an app of type {@code key}. */ private int getSizeLimitForKey(@AppKey int key) { switch (key) { case KEY_CAMERA: return mConfiguredCameraPinBytes; case KEY_HOME: return mConfiguredHomePinBytes; case KEY_ASSISTANT: return mConfiguredAssistantPinBytes; default: return 0; } } /** * Retrieves remaining quota for pinner service, once it reaches 0 it will no longer * pin any file. */ private long getAvailableGlobalQuota() { return mConfiguredMaxPinnedMemory - mCurrentPinnedMemory; } /** * Pins an application. * * @param key The key of the app to pin. * @param appInfo The corresponding app info. */ private void pinAppInternal(@AppKey int key, @Nullable ApplicationInfo appInfo) { if (appInfo == null) { return; } PinnedApp pinnedApp = new PinnedApp(appInfo); synchronized (this) { mPinnedApps.put(key, pinnedApp); } // pin APK final int pinSizeLimit = getSizeLimitForKey(key); List<String> apks = new ArrayList<>(); apks.add(appInfo.sourceDir); if (appInfo.splitSourceDirs != null) { for (String splitApk : appInfo.splitSourceDirs) { apks.add(splitApk); } } long apkPinSizeLimit = pinSizeLimit; for (String apk : apks) { if (apkPinSizeLimit <= 0) { Slog.w(TAG, "Reached to the pin size limit. Skipping: " + apk); // Continue instead of break to print all skipped APK names. continue; } String pinGroup = getNameForKey(key); boolean shouldPinDeps = apk.equals(appInfo.sourceDir); PinnedFile pf = pinFile(apk, apkPinSizeLimit, appInfo, pinGroup, shouldPinDeps); if (pf == null) { Slog.e(TAG, "Failed to pin " + apk); continue; } if (DEBUG) { Slog.i(TAG, "Pinned " + pf.fileName); } synchronized (this) { pinnedApp.mFiles.add(pf); } apkPinSizeLimit -= pf.bytesPinned; } } /** * Pin file or apk to memory. * * Prefer to use this method instead of {@link #pinFileInternal(String, int, boolean)} as it * takes care of accounting and if pinning an apk, it also pins any extra optimized art files * that related to the file but not within itself. * * @param fileToPin File to pin * @param bytesRequestedToPin maximum bytes requested to pin for {@code fileToPin}. * @param pinOptimizedDeps whether optimized dependencies such as odex,vdex, etc be pinned. * Note: {@code bytesRequestedToPin} limit will not apply to optimized * dependencies pinned, only global quotas will apply instead. * @return pinned file */ public PinnedFile pinFile(String fileToPin, long bytesRequestedToPin, @Nullable ApplicationInfo appInfo, @Nullable String groupName, boolean pinOptimizedDeps) { PinnedFile existingPin; synchronized (this) { existingPin = mPinnedFiles.get(fileToPin); } if (existingPin != null) { if (existingPin.bytesPinned == bytesRequestedToPin) { // Duplicate pin requesting same amount of bytes, lets just bail out. return null; } else { // User decided to pin a different amount of bytes than currently pinned // so this is a valid pin request. Unpin the previous version before repining. if (DEBUG) { Slog.d(TAG, "Unpinning file prior to repin: " + fileToPin); } unpinFile(fileToPin); } } long remainingQuota = getAvailableGlobalQuota(); if (pinGlobalQuota()) { if (remainingQuota <= 0) { Slog.w(TAG, "Reached pin quota, skipping file: " + fileToPin); return null; } bytesRequestedToPin = Math.min(bytesRequestedToPin, remainingQuota); } boolean isApk = fileToPin.endsWith(".apk"); PinnedFile pf = mInjector.pinFileInternal(this, fileToPin, bytesRequestedToPin, /*attemptPinIntrospection=*/isApk); if (pf == null) { Slog.e(TAG, "Failed to pin file = " + fileToPin); return null; } pf.groupName = groupName != null ? groupName : ""; mCurrentPinnedMemory += pf.bytesPinned; synchronized (this) { mPinnedFiles.put(pf.fileName, pf); } if (pinOptimizedDeps) { mCurrentPinnedMemory += pinOptimizedDexDependencies(pf, getAvailableGlobalQuota(), appInfo); } return pf; } /** * Pin any dependency optimized files generated by ART. * @param pinnedFile An already pinned file whose dependencies we want pinned. * @param maxBytesToPin Maximum amount of bytes to pin. * @param appInfo Used to determine the ABI in case the application has one custom set, when set * to null it will use the default supported ABI by the device. * @return total bytes pinned. */ private long pinOptimizedDexDependencies( PinnedFile pinnedFile, long maxBytesToPin, @Nullable ApplicationInfo appInfo) { if (pinnedFile == null) { return 0; } long bytesPinned = 0; if (pinnedFile.fileName.endsWith(".jar") | pinnedFile.fileName.endsWith(".apk")) { String abi = null; if (appInfo != null) { abi = appInfo.primaryCpuAbi; } if (abi == null) { abi = Build.SUPPORTED_ABIS[0]; } // Check whether the runtime has compilation artifacts to pin. String arch = VMRuntime.getInstructionSet(abi); String[] files = null; try { files = DexFile.getDexFileOutputPaths(pinnedFile.fileName, arch); } catch (IOException ioe) { } if (files == null) { return bytesPinned; } for (String file : files) { // Unpin if it was already pinned prior to re-pinning. unpinFile(file); PinnedFile df = mInjector.pinFileInternal(this, file, maxBytesToPin, /*attemptPinIntrospection=*/false); if (df == null) { Slog.i(TAG, "Failed to pin ART file = " + file); return bytesPinned; } df.groupName = pinnedFile.groupName; pinnedFile.pinnedDeps.add(df); maxBytesToPin -= df.bytesPinned; bytesPinned += df.bytesPinned; synchronized (this) { mPinnedFiles.put(df.fileName, df); } } } return bytesPinned; } /** * mlock length bytes of fileToPin in memory * * If attemptPinIntrospection is true, then treat the file to pin as a zip file and * look for a "pinlist.meta" file in the archive root directory. The structure of this * file is a PINLIST_META as described below: * * <pre> * PINLIST_META: PIN_RANGE* * PIN_RANGE: PIN_START PIN_LENGTH * PIN_START: big endian i32: offset in bytes of pin region from file start * PIN_LENGTH: big endian i32: length of pin region in bytes * </pre> * * (We use big endian because that's what DataInputStream is hardcoded to use.) * * If attemptPinIntrospection is false, then we use a single implicit PIN_RANGE of (0, * maxBytesToPin); that is, we attempt to pin the first maxBytesToPin bytes of the file. * * After we open a file, we march through the list of pin ranges and attempt to pin * each one, stopping after we've pinned maxBytesToPin bytes. (We may truncate the last * pinned range to fit.) In this way, by choosing to emit certain PIN_RANGE pairs * before others, file generators can express pins in priority order, making most * effective use of the pinned-page quota. * * N.B. Each PIN_RANGE is clamped to the actual bounds of the file; all inputs have a * meaningful interpretation. Also, a range locking a single byte of a page locks the * whole page. Any truncated PIN_RANGE at EOF is ignored. Overlapping pinned entries * are legal, but each pin of a byte counts toward the pin quota regardless of whether * that byte has already been pinned, so the generator of PINLIST_META ought to ensure * that ranges are non-overlapping. * * @param fileToPin Path to file to pin * @param maxBytesToPin Maximum number of bytes to pin * @param attemptPinIntrospection If true, try to open file as a * zip in order to extract the * @return Pinned memory resource owner thing or null on error */ private PinnedFile pinFileInternal( String fileToPin, long maxBytesToPin, boolean attemptPinIntrospection) { if (DEBUG) { Slog.d(TAG, "pin file: " + fileToPin + " use-pinlist: " + attemptPinIntrospection); } ZipFile fileAsZip = null; InputStream pinRangeStream = null; try { if (attemptPinIntrospection) { fileAsZip = maybeOpenZip(fileToPin); } if (fileAsZip != null) { pinRangeStream = maybeOpenPinMetaInZip(fileAsZip, fileToPin); } boolean use_pinlist = (pinRangeStream != null); PinRangeSource pinRangeSource = use_pinlist ? new PinRangeSourceStream(pinRangeStream) : new PinRangeSourceStatic(0, Integer.MAX_VALUE /* will be clipped */); PinnedFile pinnedFile = pinFileRanges(fileToPin, maxBytesToPin, pinRangeSource); if (pinnedFile != null) { pinnedFile.used_pinlist = use_pinlist; } return pinnedFile; } finally { PinnerUtils.safeClose(pinRangeStream); PinnerUtils.safeClose(fileAsZip); // Also closes any streams we've opened } } /** * Attempt to open a file as a zip file. On any sort of corruption, log, swallow the * error, and return null. */ private static ZipFile maybeOpenZip(String fileName) { ZipFile zip = null; try { zip = new ZipFile(fileName); } catch (IOException ex) { Slog.w(TAG, String.format("could not open \"%s\" as zip: pinning as blob", fileName), ex); } return zip; } /** * Open a pin metadata file in the zip if one is present. * * @param zipFile Zip file to search * @return Open input stream or null on any error */ private static InputStream maybeOpenPinMetaInZip(ZipFile zipFile, String fileName) { if (!PROP_PIN_PINLIST) { if (DEBUG) { Slog.i(TAG, "Pin - skip pinlist.meta in " + fileName); } return null; } // Looking at root directory is the old behavior but still some apps rely on it so keeping // for backward compatibility. As doing a single item lookup is cheap in the root. ZipEntry pinMetaEntry = zipFile.getEntry(PIN_META_FILENAME); if (pinMetaEntry == null) { // It is usually within an apk's control to include files in assets/ directory // so this would be the expected point to have the pinlist.meta coming from. // we explicitly avoid doing an exhaustive search because it may be expensive so // prefer to have a good known location to retrieve the file. pinMetaEntry = zipFile.getEntry("assets/" + PIN_META_FILENAME); } InputStream pinMetaStream = null; if (pinMetaEntry != null) { if (DEBUG) { Slog.d(TAG, "Found pinlist.meta for " + fileName); } try { pinMetaStream = zipFile.getInputStream(pinMetaEntry); } catch (IOException ex) { Slog.w(TAG, String.format( "error reading pin metadata \"%s\": pinning as blob", fileName), ex); } } else { Slog.w(TAG, String.format( "Could not find pinlist.meta for \"%s\": pinning as blob", fileName)); } return pinMetaStream; } /** * Helper for pinFile. * * @param fileToPin Name of file to pin * @param maxBytesToPin Maximum number of bytes to pin * @param pinRangeSource Read PIN_RANGE entries from this stream to tell us what bytes * to pin. * @return PinnedFile or null on error */ private static PinnedFile pinFileRanges( String fileToPin, long maxBytesToPin, PinRangeSource pinRangeSource) { FileDescriptor fd = new FileDescriptor(); long address = -1; long mapSize = 0; try { int openFlags = (OsConstants.O_RDONLY | OsConstants.O_CLOEXEC); fd = Os.open(fileToPin, openFlags, 0); mapSize = (int) Math.min(Os.fstat(fd).st_size, Integer.MAX_VALUE); address = Os.mmap( 0, mapSize, OsConstants.PROT_READ, OsConstants.MAP_SHARED, fd, /*offset=*/0); PinRange pinRange = new PinRange(); long bytesPinned = 0; // We pin at page granularity, so make sure the limit is page-aligned if (maxBytesToPin % PAGE_SIZE != 0) { maxBytesToPin -= maxBytesToPin % PAGE_SIZE; } while (bytesPinned < maxBytesToPin && pinRangeSource.read(pinRange)) { long pinStart = pinRange.start; long pinLength = pinRange.length; pinStart = PinnerUtils.clamp(0, pinStart, mapSize); pinLength = PinnerUtils.clamp(0, pinLength, mapSize - pinStart); pinLength = Math.min(maxBytesToPin - bytesPinned, pinLength); // mlock doesn't require the region to be page-aligned, but we snap the // lock region to page boundaries anyway so that we don't under-count // locking a single byte of a page as a charge of one byte even though the // OS will retain the whole page. Thanks to this adjustment, we slightly // over-count the pin charge of back-to-back pins touching the same page, // but better that than undercounting. Besides: nothing stops pin metafile // creators from making the actual regions page-aligned. pinLength += pinStart % PAGE_SIZE; pinStart -= pinStart % PAGE_SIZE; if (pinLength % PAGE_SIZE != 0) { pinLength += PAGE_SIZE - pinLength % PAGE_SIZE; } pinLength = PinnerUtils.clamp(0, pinLength, maxBytesToPin - bytesPinned); if (pinLength > 0) { if (DEBUG) { Slog.d(TAG, String.format("pinning at %s %s bytes of %s", pinStart, pinLength, fileToPin)); } Os.mlock(address + pinStart, pinLength); } bytesPinned += pinLength; } PinnedFile pinnedFile = new PinnedFile(address, mapSize, fileToPin, bytesPinned); address = -1; // Ownership transferred return pinnedFile; } catch (ErrnoException ex) { Slog.e(TAG, "Could not pin file " + fileToPin, ex); return null; } finally { PinnerUtils.safeClose(fd); if (address >= 0) { PinnerUtils.safeMunmap(address, mapSize); } } } private List<PinnedFile> getAllPinsForGroup(String group) { List<PinnedFile> filesInGroup; synchronized (this) { filesInGroup = mPinnedFiles.values() .stream() .filter(pf -> pf.groupName.equals(group)) .toList(); } return filesInGroup; } public void unpinGroup(String group) { List<PinnedFile> pinnedFiles = getAllPinsForGroup(group); for (PinnedFile pf : pinnedFiles) { unpinFile(pf.fileName); } } /** * Unpin a file and its optimized dependencies. * * @param filename file to unpin. * @return number of bytes unpinned, 0 in case of failure or nothing to unpin. */ public long unpinFile(String filename) { PinnedFile pinnedFile; synchronized (this) { pinnedFile = mPinnedFiles.get(filename); } if (pinnedFile == null) { // File not pinned, nothing to do. return 0; } long unpinnedBytes = pinnedFile.bytesPinned; pinnedFile.close(); synchronized (this) { if (DEBUG) { Slog.d(TAG, "Unpinned file: " + filename); } mCurrentPinnedMemory -= pinnedFile.bytesPinned; mPinnedFiles.remove(pinnedFile.fileName); for (PinnedFile dep : pinnedFile.pinnedDeps) { if (dep == null) { continue; } unpinnedBytes -= dep.bytesPinned; mCurrentPinnedMemory -= dep.bytesPinned; mPinnedFiles.remove(dep.fileName); if (DEBUG) { Slog.d(TAG, "Unpinned dependency: " + dep.fileName); } } } return unpinnedBytes; } public List<PinnedFileStat> getPinnerStats() { ArrayList<PinnedFileStat> stats = new ArrayList<>(); Collection<PinnedFile> pinnedFiles; synchronized (this) { pinnedFiles = mPinnedFiles.values(); } for (PinnedFile pf : pinnedFiles) { PinnedFileStat stat = new PinnedFileStat(pf.fileName, pf.bytesPinned, pf.groupName); stats.add(stat); } if (mCurrentlyPinnedAnonSize > 0) { stats.add(new PinnedFileStat( ANON_REGION_STAT_NAME, mCurrentlyPinnedAnonSize, ANON_REGION_STAT_NAME)); } return stats; } public final class BinderService extends IPinnerService.Stub { @Override protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; HashSet<PinnedFile> shownPins = new HashSet<>(); HashSet<String> shownGroups = new HashSet<>(); HashSet<String> groupsToPrint = new HashSet<>(); final double bytesPerMB = 1024 * 1024; pw.format("Pinner Configs:\n"); pw.format(" Total Pinner quota: %d%% of total device memory\n", mConfiguredMaxPinnedMemoryPercentage); pw.format(" Maximum Pinner quota: %d bytes (%.2f MB)\n", mConfiguredMaxPinnedMemory, mConfiguredMaxPinnedMemory / bytesPerMB); pw.format(" Max Home App Pin Bytes (without deps): %d (%.2f MB)\n", mConfiguredHomePinBytes, mConfiguredHomePinBytes / bytesPerMB); pw.format(" Max Assistant App Pin Bytes (without deps): %d (%.2f MB)\n", mConfiguredAssistantPinBytes, mConfiguredAssistantPinBytes / bytesPerMB); pw.format( " Max Camera App Pin Bytes (without deps): %d (%.2f MB)\n", mConfiguredCameraPinBytes, mConfiguredCameraPinBytes / bytesPerMB); pw.format("\nPinned Files:\n"); synchronized (PinnerService.this) { long totalSize = 0; // We print apps separately from regular pins as they contain extra information that // other pins do not. for (int key : mPinnedApps.keySet()) { PinnedApp app = mPinnedApps.get(key); pw.print(getNameForKey(key)); pw.print(" uid="); pw.print(app.uid); pw.print(" active="); pw.print(app.active); if (!app.mFiles.isEmpty()) { shownGroups.add(app.mFiles.getFirst().groupName); } pw.println(); long bytesPinnedForApp = 0; long bytesPinnedForAppDeps = 0; for (PinnedFile pf : mPinnedApps.get(key).mFiles) { pw.print(" "); pw.format("%s pinned:%d bytes (%.2f MB) pinlist:%b\n", pf.fileName, pf.bytesPinned, pf.bytesPinned / bytesPerMB, pf.used_pinlist); totalSize += pf.bytesPinned; bytesPinnedForApp += pf.bytesPinned; shownPins.add(pf); for (PinnedFile dep : pf.pinnedDeps) { pw.print(" "); pw.format("%s pinned:%d bytes (%.2f MB) pinlist:%b (Dependency)\n", dep.fileName, dep.bytesPinned, dep.bytesPinned / bytesPerMB, dep.used_pinlist); totalSize += dep.bytesPinned; bytesPinnedForAppDeps += dep.bytesPinned; shownPins.add(dep); } } long bytesPinnedForAppAndDeps = bytesPinnedForApp + bytesPinnedForAppDeps; pw.format("Total Pinned = %d (%.2f MB) [App=%d (%.2f MB), " + "Dependencies=%d (%.2f MB)]\n\n", bytesPinnedForAppAndDeps, bytesPinnedForAppAndDeps / bytesPerMB, bytesPinnedForApp, bytesPinnedForApp / bytesPerMB, bytesPinnedForAppDeps, bytesPinnedForAppDeps / bytesPerMB); } pw.println(); for (PinnedFile pinnedFile : mPinnedFiles.values()) { if (!groupsToPrint.contains(pinnedFile.groupName) && !shownGroups.contains(pinnedFile.groupName)) { groupsToPrint.add(pinnedFile.groupName); } } // Print all the non app groups. for (String group : groupsToPrint) { List<PinnedFile> groupPins = getAllPinsForGroup(group); pw.print("\nGroup:" + group); long bytesPinnedForGroupNoDeps = 0; long bytesPinnedForGroupDeps = 0; pw.println(); for (PinnedFile pinnedFile : groupPins) { if (shownPins.contains(pinnedFile)) { // Already displayed and accounted for, skip. continue; } pw.format(" %s pinned: %d bytes (%.2f MB) pinlist:%b\n", pinnedFile.fileName, pinnedFile.bytesPinned, pinnedFile.bytesPinned / bytesPerMB, pinnedFile.used_pinlist); totalSize += pinnedFile.bytesPinned; bytesPinnedForGroupNoDeps += pinnedFile.bytesPinned; shownPins.add(pinnedFile); for (PinnedFile dep : pinnedFile.pinnedDeps) { if (shownPins.contains(dep)) { // Already displayed and accounted for, skip. continue; } pw.print(" "); pw.format("%s pinned:%d bytes (%.2f MB) pinlist:%b (Dependency)\n", dep.fileName, dep.bytesPinned, dep.bytesPinned / bytesPerMB, dep.used_pinlist); totalSize += dep.bytesPinned; bytesPinnedForGroupDeps += dep.bytesPinned; shownPins.add(dep); } } long bytesPinnedForGroup = bytesPinnedForGroupNoDeps + bytesPinnedForGroupDeps; pw.format("Total Pinned = %d (%.2f MB) [Main=%d (%.2f MB), " + "Dependencies=%d (%.2f MB)]\n\n", bytesPinnedForGroup, bytesPinnedForGroup / bytesPerMB, bytesPinnedForGroupNoDeps, bytesPinnedForGroupNoDeps / bytesPerMB, bytesPinnedForGroupDeps, bytesPinnedForGroupDeps / bytesPerMB); } pw.println(); if (mPinAnonAddress != 0) { pw.format("Pinned anon region: %d (%.2f MB)\n", mCurrentlyPinnedAnonSize, mCurrentlyPinnedAnonSize / bytesPerMB); totalSize += mCurrentlyPinnedAnonSize; } pw.format("Total pinned: %d bytes (%.2f MB)\n", totalSize, totalSize / bytesPerMB); pw.format("Available Pinner quota: %d bytes (%.2f MB)\n", getAvailableGlobalQuota(), getAvailableGlobalQuota() / bytesPerMB); pw.println(); if (!mPendingRepin.isEmpty()) { pw.print("Pending repin: "); for (int key : mPendingRepin.values()) { pw.print(getNameForKey(key)); pw.print(' '); } pw.println(); } } } private void repin() { sendUnpinAppsMessage(); // TODO(morrita): Consider supporting non-system user. sendPinAppsWithUpdatedKeysMessage(UserHandle.USER_SYSTEM); } private void printError(FileDescriptor out, String message) { PrintWriter writer = new PrintWriter(new FileOutputStream(out)); writer.println(message); writer.flush(); } @Override public void onShellCommand(FileDescriptor in, FileDescriptor out, FileDescriptor err, String[] args, ShellCallback callback, ResultReceiver resultReceiver) { if (args.length < 1) { printError(out, "Command is not given."); resultReceiver.send(-1, null); return; } String command = args[0]; switch (command) { case "repin": repin(); break; default: printError(out, String.format("Unknown pinner command: %s. 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This stays constant while the package stays * installed. */ final int uid; /** Whether it is currently active, i.e. there is a running process from that package. */ boolean active; /** List of pinned files. */ final ArrayList<PinnedFile> mFiles = new ArrayList<>(); private PinnedApp(ApplicationInfo appInfo) { uid = appInfo.uid; active = mAmInternal.isUidActive(uid); } } final class PinnerHandler extends Handler { static final int PIN_ONSTART_MSG = 4001; public PinnerHandler(Looper looper) { super(looper, null, true); } @Override public void handleMessage(Message msg) { switch (msg.what) { case PIN_ONSTART_MSG: { handlePinOnStart(); } break; default: super.handleMessage(msg); } } } } 我想改这个java文件 在pinOptimizedDexDependencies函数中加上 files = DexFile.getDexFileOutputPaths(pinnedFile.fileName, arch); 打印出所有的dex file文件名 并且看一下dex文件是否pin成功 这个push到手机里面去验证 加上日志打印
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