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Diffstat (limited to 'venv/lib/python3.11/site-packages/mdurl/_parse.py')
| -rw-r--r-- | venv/lib/python3.11/site-packages/mdurl/_parse.py | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/venv/lib/python3.11/site-packages/mdurl/_parse.py b/venv/lib/python3.11/site-packages/mdurl/_parse.py deleted file mode 100644 index ffeeac7..0000000 --- a/venv/lib/python3.11/site-packages/mdurl/_parse.py +++ /dev/null @@ -1,304 +0,0 @@ -# Copyright Joyent, Inc. and other Node contributors. -# -# Permission is hereby granted, free of charge, to any person obtaining a -# copy of this software and associated documentation files (the -# "Software"), to deal in the Software without restriction, including -# without limitation the rights to use, copy, modify, merge, publish, -# distribute, sublicense, and/or sell copies of the Software, and to permit -# persons to whom the Software is furnished to do so, subject to the -# following conditions: -# -# The above copyright notice and this permission notice shall be included -# in all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -# NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -# USE OR OTHER DEALINGS IN THE SOFTWARE. - - -# Changes from joyent/node: -# -# 1. No leading slash in paths, -# e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/` -# -# 2. Backslashes are not replaced with slashes, -# so `http:\\example.org\` is treated like a relative path -# -# 3. Trailing colon is treated like a part of the path, -# i.e. in `http://example.org:foo` pathname is `:foo` -# -# 4. Nothing is URL-encoded in the resulting object, -# (in joyent/node some chars in auth and paths are encoded) -# -# 5. `url.parse()` does not have `parseQueryString` argument -# -# 6. Removed extraneous result properties: `host`, `path`, `query`, etc., -# which can be constructed using other parts of the url. - -from __future__ import annotations - -from collections import defaultdict -import re - -from mdurl._url import URL - -# Reference: RFC 3986, RFC 1808, RFC 2396 - -# define these here so at least they only have to be -# compiled once on the first module load. -PROTOCOL_PATTERN = re.compile(r"^([a-z0-9.+-]+:)", flags=re.IGNORECASE) -PORT_PATTERN = re.compile(r":[0-9]*$") - -# Special case for a simple path URL -SIMPLE_PATH_PATTERN = re.compile(r"^(//?(?!/)[^?\s]*)(\?[^\s]*)?$") - -# RFC 2396: characters reserved for delimiting URLs. -# We actually just auto-escape these. -DELIMS = ("<", ">", '"', "`", " ", "\r", "\n", "\t") - -# RFC 2396: characters not allowed for various reasons. -UNWISE = ("{", "}", "|", "\\", "^", "`") + DELIMS - -# Allowed by RFCs, but cause of XSS attacks. Always escape these. -AUTO_ESCAPE = ("'",) + UNWISE -# Characters that are never ever allowed in a hostname. -# Note that any invalid chars are also handled, but these -# are the ones that are *expected* to be seen, so we fast-path -# them. -NON_HOST_CHARS = ("%", "/", "?", ";", "#") + AUTO_ESCAPE -HOST_ENDING_CHARS = ("/", "?", "#") -HOSTNAME_MAX_LEN = 255 -HOSTNAME_PART_PATTERN = re.compile(r"^[+a-z0-9A-Z_-]{0,63}$") -HOSTNAME_PART_START = re.compile(r"^([+a-z0-9A-Z_-]{0,63})(.*)$") -# protocols that can allow "unsafe" and "unwise" chars. - -# protocols that never have a hostname. -HOSTLESS_PROTOCOL = defaultdict( - bool, - { - "javascript": True, - "javascript:": True, - }, -) -# protocols that always contain a // bit. -SLASHED_PROTOCOL = defaultdict( - bool, - { - "http": True, - "https": True, - "ftp": True, - "gopher": True, - "file": True, - "http:": True, - "https:": True, - "ftp:": True, - "gopher:": True, - "file:": True, - }, -) - - -class MutableURL: - def __init__(self) -> None: - self.protocol: str | None = None - self.slashes: bool = False - self.auth: str | None = None - self.port: str | None = None - self.hostname: str | None = None - self.hash: str | None = None - self.search: str | None = None - self.pathname: str | None = None - - def parse(self, url: str, slashes_denote_host: bool) -> "MutableURL": - lower_proto = "" - slashes = False - rest = url - - # trim before proceeding. - # This is to support parse stuff like " http://foo.com \n" - rest = rest.strip() - - if not slashes_denote_host and len(url.split("#")) == 1: - # Try fast path regexp - simple_path = SIMPLE_PATH_PATTERN.match(rest) - if simple_path: - self.pathname = simple_path.group(1) - if simple_path.group(2): - self.search = simple_path.group(2) - return self - - proto = "" - proto_match = PROTOCOL_PATTERN.match(rest) - if proto_match: - proto = proto_match.group() - lower_proto = proto.lower() - self.protocol = proto - rest = rest[len(proto) :] - - # figure out if it's got a host - # user@server is *always* interpreted as a hostname, and url - # resolution will treat //foo/bar as host=foo,path=bar because that's - # how the browser resolves relative URLs. - if slashes_denote_host or proto or re.search(r"^//[^@/]+@[^@/]+", rest): - slashes = rest.startswith("//") - if slashes and not (proto and HOSTLESS_PROTOCOL[proto]): - rest = rest[2:] - self.slashes = True - - if not HOSTLESS_PROTOCOL[proto] and ( - slashes or (proto and not SLASHED_PROTOCOL[proto]) - ): - - # there's a hostname. - # the first instance of /, ?, ;, or # ends the host. - # - # If there is an @ in the hostname, then non-host chars *are* allowed - # to the left of the last @ sign, unless some host-ending character - # comes *before* the @-sign. - # URLs are obnoxious. - # - # ex: - # http://a@b@c/ => user:a@b host:c - # http://a@b?@c => user:a host:c path:/?@c - - # v0.12 TODO(isaacs): This is not quite how Chrome does things. - # Review our test case against browsers more comprehensively. - - # find the first instance of any hostEndingChars - host_end = -1 - for i in range(len(HOST_ENDING_CHARS)): - hec = rest.find(HOST_ENDING_CHARS[i]) - if hec != -1 and (host_end == -1 or hec < host_end): - host_end = hec - - # at this point, either we have an explicit point where the - # auth portion cannot go past, or the last @ char is the decider. - if host_end == -1: - # atSign can be anywhere. - at_sign = rest.rfind("@") - else: - # atSign must be in auth portion. - # http://a@b/c@d => host:b auth:a path:/c@d - at_sign = rest.rfind("@", 0, host_end + 1) - - # Now we have a portion which is definitely the auth. - # Pull that off. - if at_sign != -1: - auth = rest[:at_sign] - rest = rest[at_sign + 1 :] - self.auth = auth - - # the host is the remaining to the left of the first non-host char - host_end = -1 - for i in range(len(NON_HOST_CHARS)): - hec = rest.find(NON_HOST_CHARS[i]) - if hec != -1 and (host_end == -1 or hec < host_end): - host_end = hec - # if we still have not hit it, then the entire thing is a host. - if host_end == -1: - host_end = len(rest) - - if host_end > 0 and rest[host_end - 1] == ":": - host_end -= 1 - host = rest[:host_end] - rest = rest[host_end:] - - # pull out port. - self.parse_host(host) - - # we've indicated that there is a hostname, - # so even if it's empty, it has to be present. - self.hostname = self.hostname or "" - - # if hostname begins with [ and ends with ] - # assume that it's an IPv6 address. - ipv6_hostname = self.hostname.startswith("[") and self.hostname.endswith( - "]" - ) - - # validate a little. - if not ipv6_hostname: - hostparts = self.hostname.split(".") - l = len(hostparts) # noqa: E741 - i = 0 - while i < l: - part = hostparts[i] - if not part: - i += 1 # emulate statement3 in JS for loop - continue - if not HOSTNAME_PART_PATTERN.search(part): - newpart = "" - k = len(part) - j = 0 - while j < k: - if ord(part[j]) > 127: - # we replace non-ASCII char with a temporary placeholder - # we need this to make sure size of hostname is not - # broken by replacing non-ASCII by nothing - newpart += "x" - else: - newpart += part[j] - j += 1 # emulate statement3 in JS for loop - - # we test again with ASCII char only - if not HOSTNAME_PART_PATTERN.search(newpart): - valid_parts = hostparts[:i] - not_host = hostparts[i + 1 :] - bit = HOSTNAME_PART_START.search(part) - if bit: - valid_parts.append(bit.group(1)) - not_host.insert(0, bit.group(2)) - if not_host: - rest = ".".join(not_host) + rest - self.hostname = ".".join(valid_parts) - break - i += 1 # emulate statement3 in JS for loop - - if len(self.hostname) > HOSTNAME_MAX_LEN: - self.hostname = "" - - # strip [ and ] from the hostname - # the host field still retains them, though - if ipv6_hostname: - self.hostname = self.hostname[1:-1] - - # chop off from the tail first. - hash = rest.find("#") # noqa: A001 - if hash != -1: - # got a fragment string. - self.hash = rest[hash:] - rest = rest[:hash] - qm = rest.find("?") - if qm != -1: - self.search = rest[qm:] - rest = rest[:qm] - if rest: - self.pathname = rest - if SLASHED_PROTOCOL[lower_proto] and self.hostname and not self.pathname: - self.pathname = "" - - return self - - def parse_host(self, host: str) -> None: - port_match = PORT_PATTERN.search(host) - if port_match: - port = port_match.group() - if port != ":": - self.port = port[1:] - host = host[: -len(port)] - if host: - self.hostname = host - - -def url_parse(url: URL | str, *, slashes_denote_host: bool = False) -> URL: - if isinstance(url, URL): - return url - u = MutableURL() - u.parse(url, slashes_denote_host) - return URL( - u.protocol, u.slashes, u.auth, u.port, u.hostname, u.hash, u.search, u.pathname - ) |