summaryrefslogtreecommitdiffstats
path: root/bitbake/lib/bb/fetch2/wget.py
blob: d688fd9d0246a64a8c8e3a7d5c8d01422af4345b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake 'Fetch' implementations

Classes for obtaining upstream sources for the
BitBake build tools.

"""

# Copyright (C) 2003, 2004  Chris Larson
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Based on functions from the base bb module, Copyright 2003 Holger Schurig

import re
import tempfile
import subprocess
import os
import logging
import bb
import urllib.request, urllib.parse, urllib.error
from   bb import data
from   bb.fetch2 import FetchMethod
from   bb.fetch2 import FetchError
from   bb.fetch2 import logger
from   bb.fetch2 import runfetchcmd
from   bb.utils import export_proxies
from   bs4 import BeautifulSoup
from   bs4 import SoupStrainer

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 = data.expand(urllib.parse.unquote(ud.basename), d)
        if not ud.localfile:
            ud.localfile = data.expand(urllib.parse.unquote(ud.host + ud.path).replace("/", "."), d)

        self.basecmd = d.getVar("FETCHCMD_wget", True) or "/usr/bin/env wget -t 2 -T 30 -nv --passive-ftp --no-check-certificate"

    def _runwget(self, ud, d, command, quiet):

        logger.debug(2, "Fetching %s using command '%s'" % (ud.url, command))
        bb.fetch2.check_network_access(d, command)
        runfetchcmd(command, d, quiet)

    def download(self, ud, d):
        """Fetch urls"""

        fetchcmd = self.basecmd

        if 'downloadfilename' in ud.parm:
            dldir = d.getVar("DL_DIR", True)
            bb.utils.mkdirhier(os.path.dirname(dldir + os.sep + ud.localfile))
            fetchcmd += " -O " + dldir + os.sep + ud.localfile

        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):
        import urllib.request, urllib.error, urllib.parse, socket, http.client
        from urllib.response import addinfourl
        from bb.fetch2 import FetchConnectionCache

        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 urlllib2.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.
                    if fetch.connection_cache is None:
                        h.close()
                    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

                resp = 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()

                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))

            """
            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

            """
            Some servers (e.g. FusionForge) returns 406 Not Acceptable when they
            actually mean 405 Method Not Allowed.
            """
            http_error_406 = 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 = lambda: req.get_method()
                return newreq
        exported_proxies = export_proxies(d)

        handlers = [FixedHTTPRedirectHandler, HTTPMethodFallback]
        if export_proxies:
            handlers.append(urllib.request.ProxyHandler())
        handlers.append(CacheHTTPHandler())
        # XXX: 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"
            opener.open(r)
        except urllib.error.URLError as e:
            # 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()

        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)
            fetchresult = f.read()
        except bb.fetch2.BBFetchException:
            fetchresult = ""

        f.close()
        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("(?P<pfx>\D*)(?P<ver>(\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 = "[a-zA-Z][a-zA-Z0-9]*([-_][a-zA-Z]\w+)*\+?[-_]"
        # a loose pattern such as for unzip552.tar.gz
        pn_prefix2 = "[a-zA-Z]+"
        # a loose pattern such as for 80325-quicky-0.4.tar.gz
        pn_prefix3 = "[0-9]+[-]?[a-zA-Z]+"
        # Save the Package Name (pn) Regex for use later
        pn_regex = "(%s|%s|%s)" % (pn_prefix1, pn_prefix2, pn_prefix3)

        # match version
        pver_regex = "(([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 = "(tar\.gz|tgz|tar\.bz2|zip|xz|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("(?P<name>%s?\.?v?)(?P<pver>%s)(?P<arch>%s)?[\.-](?P<type>%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', True)
        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(
                    "(?P<name>%s)(?P<pver>%s)(?P<arch>%s)?[\.-](?P<type>%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', True), '']

        """possible to have no version in pkg name, such as spectrum-fw"""
        if not re.search("\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", True)
        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("(?P<dirver>[^/]*(\d+\.)*\d+([-_]r\d+)*)/")
            m = dirver_regex.search(path)
            if m:
                pn = d.getVar('PN', True)
                dirver = m.group('dirver')

                dirver_pn_regex = re.compile("%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), '')