""" BitBake 'Fetch' implementations Classes for obtaining upstream sources for the BitBake build tools. """ # Copyright (C) 2003, 2004 Chris Larson # # SPDX-License-Identifier: GPL-2.0-only # # Based on functions from the base bb module, Copyright 2003 Holger Schurig import re import tempfile import subprocess import os import logging import errno import bb import bb.progress import socket import http.client import urllib.request, urllib.parse, urllib.error from bb.fetch2 import FetchMethod from bb.fetch2 import FetchError from bb.fetch2 import logger from bb.fetch2 import runfetchcmd from bb.fetch2 import FetchConnectionCache from bb.utils import export_proxies from bs4 import BeautifulSoup from bs4 import SoupStrainer class WgetProgressHandler(bb.progress.LineFilterProgressHandler): """ Extract progress information from wget output. Note: relies on --progress=dot (with -v or without -q/-nv) being specified on the wget command line. """ def __init__(self, d): super(WgetProgressHandler, self).__init__(d) # Send an initial progress event so the bar gets shown self._fire_progress(0) def writeline(self, line): percs = re.findall(r'(\d+)%\s+([\d.]+[A-Z])', line) if percs: progress = int(percs[-1][0]) rate = percs[-1][1] + '/s' self.update(progress, rate) return False return True class Wget(FetchMethod): """Class to fetch urls via 'wget'""" def supports(self, ud, d): """ Check to see if a given url can be fetched with wget. """ return ud.type in ['http', 'https', 'ftp'] def recommends_checksum(self, urldata): return True def urldata_init(self, ud, d): if 'protocol' in ud.parm: if ud.parm['protocol'] == 'git': raise bb.fetch2.ParameterError("Invalid protocol - if you wish to fetch from a git repository using http, you need to instead use the git:// prefix with protocol=http", ud.url) if 'downloadfilename' in ud.parm: ud.basename = ud.parm['downloadfilename'] else: ud.basename = os.path.basename(ud.path) ud.localfile = d.expand(urllib.parse.unquote(ud.basename)) if not ud.localfile: ud.localfile = d.expand(urllib.parse.unquote(ud.host + ud.path).replace("/", ".")) self.basecmd = d.getVar("FETCHCMD_wget") or "/usr/bin/env wget -t 2 -T 30 --passive-ftp --no-check-certificate" def _runwget(self, ud, d, command, quiet, workdir=None): progresshandler = WgetProgressHandler(d) logger.debug(2, "Fetching %s using command '%s'" % (ud.url, command)) bb.fetch2.check_network_access(d, command, ud.url) runfetchcmd(command + ' --progress=dot -v', d, quiet, log=progresshandler, workdir=workdir) def download(self, ud, d): """Fetch urls""" fetchcmd = self.basecmd if 'downloadfilename' in ud.parm: dldir = d.getVar("DL_DIR") bb.utils.mkdirhier(os.path.dirname(dldir + os.sep + ud.localfile)) fetchcmd += " -O " + dldir + os.sep + ud.localfile if ud.user and ud.pswd: fetchcmd += " --user=%s --password=%s --auth-no-challenge" % (ud.user, ud.pswd) uri = ud.url.split(";")[0] if os.path.exists(ud.localpath): # file exists, but we didnt complete it.. trying again.. fetchcmd += d.expand(" -c -P ${DL_DIR} '%s'" % uri) else: fetchcmd += d.expand(" -P ${DL_DIR} '%s'" % uri) self._runwget(ud, d, fetchcmd, False) # Sanity check since wget can pretend it succeed when it didn't # Also, this used to happen if sourceforge sent us to the mirror page if not os.path.exists(ud.localpath): raise FetchError("The fetch command returned success for url %s but %s doesn't exist?!" % (uri, ud.localpath), uri) if os.path.getsize(ud.localpath) == 0: os.remove(ud.localpath) raise FetchError("The fetch of %s resulted in a zero size file?! Deleting and failing since this isn't right." % (uri), uri) return True def checkstatus(self, fetch, ud, d, try_again=True): class HTTPConnectionCache(http.client.HTTPConnection): if fetch.connection_cache: def connect(self): """Connect to the host and port specified in __init__.""" sock = fetch.connection_cache.get_connection(self.host, self.port) if sock: self.sock = sock else: self.sock = socket.create_connection((self.host, self.port), self.timeout, self.source_address) fetch.connection_cache.add_connection(self.host, self.port, self.sock) if self._tunnel_host: self._tunnel() class CacheHTTPHandler(urllib.request.HTTPHandler): def http_open(self, req): return self.do_open(HTTPConnectionCache, req) def do_open(self, http_class, req): """Return an addinfourl object for the request, using http_class. http_class must implement the HTTPConnection API from httplib. The addinfourl return value is a file-like object. It also has methods and attributes including: - info(): return a mimetools.Message object for the headers - geturl(): return the original request URL - code: HTTP status code """ host = req.host if not host: raise urllib.error.URLError('no host given') h = http_class(host, timeout=req.timeout) # will parse host:port h.set_debuglevel(self._debuglevel) headers = dict(req.unredirected_hdrs) headers.update(dict((k, v) for k, v in list(req.headers.items()) if k not in headers)) # We want to make an HTTP/1.1 request, but the addinfourl # class isn't prepared to deal with a persistent connection. # It will try to read all remaining data from the socket, # which will block while the server waits for the next request. # So make sure the connection gets closed after the (only) # request. # Don't close connection when connection_cache is enabled, if fetch.connection_cache is None: headers["Connection"] = "close" else: headers["Connection"] = "Keep-Alive" # Works for HTTP/1.0 headers = dict( (name.title(), val) for name, val in list(headers.items())) if req._tunnel_host: tunnel_headers = {} proxy_auth_hdr = "Proxy-Authorization" if proxy_auth_hdr in headers: tunnel_headers[proxy_auth_hdr] = headers[proxy_auth_hdr] # Proxy-Authorization should not be sent to origin # server. del headers[proxy_auth_hdr] h.set_tunnel(req._tunnel_host, headers=tunnel_headers) try: h.request(req.get_method(), req.selector, req.data, headers) except socket.error as err: # XXX what error? # Don't close connection when cache is enabled. # Instead, try to detect connections that are no longer # usable (for example, closed unexpectedly) and remove # them from the cache. if fetch.connection_cache is None: h.close() elif isinstance(err, OSError) and err.errno == errno.EBADF: # This happens when the server closes the connection despite the Keep-Alive. # Apparently urllib then uses the file descriptor, expecting it to be # connected, when in reality the connection is already gone. # We let the request fail and expect it to be # tried once more ("try_again" in check_status()), # with the dead connection removed from the cache. # If it still fails, we give up, which can happend for bad # HTTP proxy settings. fetch.connection_cache.remove_connection(h.host, h.port) raise urllib.error.URLError(err) else: try: r = h.getresponse(buffering=True) except TypeError: # buffering kw not supported r = h.getresponse() # Pick apart the HTTPResponse object to get the addinfourl # object initialized properly. # Wrap the HTTPResponse object in socket's file object adapter # for Windows. That adapter calls recv(), so delegate recv() # to read(). This weird wrapping allows the returned object to # have readline() and readlines() methods. # XXX It might be better to extract the read buffering code # out of socket._fileobject() and into a base class. r.recv = r.read # no data, just have to read r.read() class fp_dummy(object): def read(self): return "" def readline(self): return "" def close(self): pass closed = False resp = urllib.response.addinfourl(fp_dummy(), r.msg, req.get_full_url()) resp.code = r.status resp.msg = r.reason # Close connection when server request it. if fetch.connection_cache is not None: if 'Connection' in r.msg and r.msg['Connection'] == 'close': fetch.connection_cache.remove_connection(h.host, h.port) return resp class HTTPMethodFallback(urllib.request.BaseHandler): """ Fallback to GET if HEAD is not allowed (405 HTTP error) """ def http_error_405(self, req, fp, code, msg, headers): fp.read() fp.close() if req.get_method() != 'GET': newheaders = dict((k, v) for k, v in list(req.headers.items()) if k.lower() not in ("content-length", "content-type")) return self.parent.open(urllib.request.Request(req.get_full_url(), headers=newheaders, origin_req_host=req.origin_req_host, unverifiable=True)) raise urllib.request.HTTPError(req, code, msg, headers, None) # Some servers (e.g. GitHub archives, hosted on Amazon S3) return 403 # Forbidden when they actually mean 405 Method Not Allowed. http_error_403 = http_error_405 class FixedHTTPRedirectHandler(urllib.request.HTTPRedirectHandler): """ urllib2.HTTPRedirectHandler resets the method to GET on redirect, when we want to follow redirects using the original method. """ def redirect_request(self, req, fp, code, msg, headers, newurl): newreq = urllib.request.HTTPRedirectHandler.redirect_request(self, req, fp, code, msg, headers, newurl) newreq.get_method = req.get_method return newreq exported_proxies = export_proxies(d) handlers = [FixedHTTPRedirectHandler, HTTPMethodFallback] if exported_proxies: handlers.append(urllib.request.ProxyHandler()) handlers.append(CacheHTTPHandler()) # Since Python 2.7.9 ssl cert validation is enabled by default # see PEP-0476, this causes verification errors on some https servers # so disable by default. import ssl if hasattr(ssl, '_create_unverified_context'): handlers.append(urllib.request.HTTPSHandler(context=ssl._create_unverified_context())) opener = urllib.request.build_opener(*handlers) try: uri = ud.url.split(";")[0] r = urllib.request.Request(uri) r.get_method = lambda: "HEAD" # Some servers (FusionForge, as used on Alioth) require that the # optional Accept header is set. r.add_header("Accept", "*/*") def add_basic_auth(login_str, request): '''Adds Basic auth to http request, pass in login:password as string''' import base64 encodeuser = base64.b64encode(login_str.encode('utf-8')).decode("utf-8") authheader = "Basic %s" % encodeuser r.add_header("Authorization", authheader) if ud.user and ud.pswd: add_basic_auth(ud.user + ':' + ud.pswd, r) try: import netrc n = netrc.netrc() login, unused, password = n.authenticators(urllib.parse.urlparse(uri).hostname) add_basic_auth("%s:%s" % (login, password), r) except (TypeError, ImportError, IOError, netrc.NetrcParseError): pass with opener.open(r) as response: pass except urllib.error.URLError as e: if try_again: logger.debug(2, "checkstatus: trying again") return self.checkstatus(fetch, ud, d, False) else: # debug for now to avoid spamming the logs in e.g. remote sstate searches logger.debug(2, "checkstatus() urlopen failed: %s" % e) return False return True def _parse_path(self, regex, s): """ Find and group name, version and archive type in the given string s """ m = regex.search(s) if m: pname = '' pver = '' ptype = '' mdict = m.groupdict() if 'name' in mdict.keys(): pname = mdict['name'] if 'pver' in mdict.keys(): pver = mdict['pver'] if 'type' in mdict.keys(): ptype = mdict['type'] bb.debug(3, "_parse_path: %s, %s, %s" % (pname, pver, ptype)) return (pname, pver, ptype) return None def _modelate_version(self, version): if version[0] in ['.', '-']: if version[1].isdigit(): version = version[1] + version[0] + version[2:len(version)] else: version = version[1:len(version)] version = re.sub('-', '.', version) version = re.sub('_', '.', version) version = re.sub('(rc)+', '.1000.', version) version = re.sub('(beta)+', '.100.', version) version = re.sub('(alpha)+', '.10.', version) if version[0] == 'v': version = version[1:len(version)] return version def _vercmp(self, old, new): """ Check whether 'new' is newer than 'old' version. We use existing vercmp() for the purpose. PE is cleared in comparison as it's not for build, and PR is cleared too for simplicity as it's somehow difficult to get from various upstream format """ (oldpn, oldpv, oldsuffix) = old (newpn, newpv, newsuffix) = new # Check for a new suffix type that we have never heard of before if newsuffix: m = self.suffix_regex_comp.search(newsuffix) if not m: bb.warn("%s has a possible unknown suffix: %s" % (newpn, newsuffix)) return False # Not our package so ignore it if oldpn != newpn: return False oldpv = self._modelate_version(oldpv) newpv = self._modelate_version(newpv) return bb.utils.vercmp(("0", oldpv, ""), ("0", newpv, "")) def _fetch_index(self, uri, ud, d): """ Run fetch checkstatus to get directory information """ f = tempfile.NamedTemporaryFile() with tempfile.TemporaryDirectory(prefix="wget-index-") as workdir, tempfile.NamedTemporaryFile(dir=workdir, prefix="wget-listing-") as f: agent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.12) Gecko/20101027 Ubuntu/9.10 (karmic) Firefox/3.6.12" fetchcmd = self.basecmd fetchcmd += " -O " + f.name + " --user-agent='" + agent + "' '" + uri + "'" try: self._runwget(ud, d, fetchcmd, True, workdir=workdir) fetchresult = f.read() except bb.fetch2.BBFetchException: fetchresult = "" return fetchresult def _check_latest_version(self, url, package, package_regex, current_version, ud, d): """ Return the latest version of a package inside a given directory path If error or no version, return "" """ valid = 0 version = ['', '', ''] bb.debug(3, "VersionURL: %s" % (url)) soup = BeautifulSoup(self._fetch_index(url, ud, d), "html.parser", parse_only=SoupStrainer("a")) if not soup: bb.debug(3, "*** %s NO SOUP" % (url)) return "" for line in soup.find_all('a', href=True): bb.debug(3, "line['href'] = '%s'" % (line['href'])) bb.debug(3, "line = '%s'" % (str(line))) newver = self._parse_path(package_regex, line['href']) if not newver: newver = self._parse_path(package_regex, str(line)) if newver: bb.debug(3, "Upstream version found: %s" % newver[1]) if valid == 0: version = newver valid = 1 elif self._vercmp(version, newver) < 0: version = newver pupver = re.sub('_', '.', version[1]) bb.debug(3, "*** %s -> UpstreamVersion = %s (CurrentVersion = %s)" % (package, pupver or "N/A", current_version[1])) if valid: return pupver return "" def _check_latest_version_by_dir(self, dirver, package, package_regex, current_version, ud, d): """ Scan every directory in order to get upstream version. """ version_dir = ['', '', ''] version = ['', '', ''] dirver_regex = re.compile(r"(?P\D*)(?P(\d+[\.\-_])+(\d+))") s = dirver_regex.search(dirver) if s: version_dir[1] = s.group('ver') else: version_dir[1] = dirver dirs_uri = bb.fetch.encodeurl([ud.type, ud.host, ud.path.split(dirver)[0], ud.user, ud.pswd, {}]) bb.debug(3, "DirURL: %s, %s" % (dirs_uri, package)) soup = BeautifulSoup(self._fetch_index(dirs_uri, ud, d), "html.parser", parse_only=SoupStrainer("a")) if not soup: return version[1] for line in soup.find_all('a', href=True): s = dirver_regex.search(line['href'].strip("/")) if s: sver = s.group('ver') # When prefix is part of the version directory it need to # ensure that only version directory is used so remove previous # directories if exists. # # Example: pfx = '/dir1/dir2/v' and version = '2.5' the expected # result is v2.5. spfx = s.group('pfx').split('/')[-1] version_dir_new = ['', sver, ''] if self._vercmp(version_dir, version_dir_new) <= 0: dirver_new = spfx + sver path = ud.path.replace(dirver, dirver_new, True) \ .split(package)[0] uri = bb.fetch.encodeurl([ud.type, ud.host, path, ud.user, ud.pswd, {}]) pupver = self._check_latest_version(uri, package, package_regex, current_version, ud, d) if pupver: version[1] = pupver version_dir = version_dir_new return version[1] def _init_regexes(self, package, ud, d): """ Match as many patterns as possible such as: gnome-common-2.20.0.tar.gz (most common format) gtk+-2.90.1.tar.gz xf86-input-synaptics-12.6.9.tar.gz dri2proto-2.3.tar.gz blktool_4.orig.tar.gz libid3tag-0.15.1b.tar.gz unzip552.tar.gz icu4c-3_6-src.tgz genext2fs_1.3.orig.tar.gz gst-fluendo-mp3 """ # match most patterns which uses "-" as separator to version digits pn_prefix1 = r"[a-zA-Z][a-zA-Z0-9]*([-_][a-zA-Z]\w+)*\+?[-_]" # a loose pattern such as for unzip552.tar.gz pn_prefix2 = r"[a-zA-Z]+" # a loose pattern such as for 80325-quicky-0.4.tar.gz pn_prefix3 = r"[0-9]+[-]?[a-zA-Z]+" # Save the Package Name (pn) Regex for use later pn_regex = r"(%s|%s|%s)" % (pn_prefix1, pn_prefix2, pn_prefix3) # match version pver_regex = r"(([A-Z]*\d+[a-zA-Z]*[\.\-_]*)+)" # match arch parch_regex = "-source|_all_" # src.rpm extension was added only for rpm package. Can be removed if the rpm # packaged will always be considered as having to be manually upgraded psuffix_regex = r"(tar\.gz|tgz|tar\.bz2|zip|xz|tar\.lz|rpm|bz2|orig\.tar\.gz|tar\.xz|src\.tar\.gz|src\.tgz|svnr\d+\.tar\.bz2|stable\.tar\.gz|src\.rpm)" # match name, version and archive type of a package package_regex_comp = re.compile(r"(?P%s?\.?v?)(?P%s)(?P%s)?[\.-](?P%s$)" % (pn_regex, pver_regex, parch_regex, psuffix_regex)) self.suffix_regex_comp = re.compile(psuffix_regex) # compile regex, can be specific by package or generic regex pn_regex = d.getVar('UPSTREAM_CHECK_REGEX') if pn_regex: package_custom_regex_comp = re.compile(pn_regex) else: version = self._parse_path(package_regex_comp, package) if version: package_custom_regex_comp = re.compile( r"(?P%s)(?P%s)(?P%s)?[\.-](?P%s)" % (re.escape(version[0]), pver_regex, parch_regex, psuffix_regex)) else: package_custom_regex_comp = None return package_custom_regex_comp def latest_versionstring(self, ud, d): """ Manipulate the URL and try to obtain the latest package version sanity check to ensure same name and type. """ package = ud.path.split("/")[-1] current_version = ['', d.getVar('PV'), ''] """possible to have no version in pkg name, such as spectrum-fw""" if not re.search(r"\d+", package): current_version[1] = re.sub('_', '.', current_version[1]) current_version[1] = re.sub('-', '.', current_version[1]) return (current_version[1], '') package_regex = self._init_regexes(package, ud, d) if package_regex is None: bb.warn("latest_versionstring: package %s don't match pattern" % (package)) return ('', '') bb.debug(3, "latest_versionstring, regex: %s" % (package_regex.pattern)) uri = "" regex_uri = d.getVar("UPSTREAM_CHECK_URI") if not regex_uri: path = ud.path.split(package)[0] # search for version matches on folders inside the path, like: # "5.7" in http://download.gnome.org/sources/${PN}/5.7/${PN}-${PV}.tar.gz dirver_regex = re.compile(r"(?P[^/]*(\d+\.)*\d+([-_]r\d+)*)/") m = dirver_regex.search(path) if m: pn = d.getVar('PN') dirver = m.group('dirver') dirver_pn_regex = re.compile(r"%s\d?" % (re.escape(pn))) if not dirver_pn_regex.search(dirver): return (self._check_latest_version_by_dir(dirver, package, package_regex, current_version, ud, d), '') uri = bb.fetch.encodeurl([ud.type, ud.host, path, ud.user, ud.pswd, {}]) else: uri = regex_uri return (self._check_latest_version(uri, package, package_regex, current_version, ud, d), '')