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1 | 1 | # httprepo.py - HTTP repository proxy classes for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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5 | 5 | # |
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6 | 6 | # This software may be used and distributed according to the terms |
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7 | 7 | # of the GNU General Public License, incorporated herein by reference. |
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8 | 8 | |
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9 | 9 | from node import bin, hex, nullid |
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10 | 10 | from i18n import _ |
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11 | 11 | import repo, os, urllib, urllib2, urlparse, zlib, util, httplib |
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12 | 12 | import errno, socket, changegroup, statichttprepo, error, url |
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13 | 13 | |
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14 | 14 | def zgenerator(f): |
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15 | 15 | zd = zlib.decompressobj() |
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16 | 16 | try: |
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17 | 17 | for chunk in util.filechunkiter(f): |
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18 | 18 | yield zd.decompress(chunk) |
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19 | 19 | except httplib.HTTPException: |
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20 | 20 | raise IOError(None, _('connection ended unexpectedly')) |
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21 | 21 | yield zd.flush() |
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22 | 22 | |
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23 | 23 | class httprepository(repo.repository): |
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24 | 24 | def __init__(self, ui, path): |
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25 | 25 | self.path = path |
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26 | 26 | self.caps = None |
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27 | 27 | self.handler = None |
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28 | 28 | scheme, netloc, urlpath, query, frag = urlparse.urlsplit(path) |
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29 | 29 | if query or frag: |
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30 | 30 | raise util.Abort(_('unsupported URL component: "%s"') % |
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31 | 31 | (query or frag)) |
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32 | 32 | |
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33 | 33 | # urllib cannot handle URLs with embedded user or passwd |
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34 | 34 | self._url, authinfo = url.getauthinfo(path) |
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35 | 35 | |
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36 | 36 | self.ui = ui |
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37 | 37 | self.ui.debug(_('using %s\n') % self._url) |
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38 | 38 | |
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39 | 39 | self.urlopener = url.opener(ui, authinfo) |
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40 | 40 | |
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41 | 41 | def __del__(self): |
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42 | 42 | for h in self.urlopener.handlers: |
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43 | 43 | h.close() |
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44 | 44 | if hasattr(h, "close_all"): |
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45 | 45 | h.close_all() |
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46 | 46 | |
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47 | 47 | def url(self): |
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48 | 48 | return self.path |
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49 | 49 | |
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50 | 50 | # look up capabilities only when needed |
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51 | 51 | |
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52 | 52 | def get_caps(self): |
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53 | 53 | if self.caps is None: |
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54 | 54 | try: |
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55 | 55 | self.caps = util.set(self.do_read('capabilities').split()) |
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56 | 56 | except error.RepoError: |
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57 | 57 | self.caps = util.set() |
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58 | 58 | self.ui.debug(_('capabilities: %s\n') % |
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59 | 59 | (' '.join(self.caps or ['none']))) |
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60 | 60 | return self.caps |
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61 | 61 | |
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62 | 62 | capabilities = property(get_caps) |
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63 | 63 | |
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64 | 64 | def lock(self): |
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65 | 65 | raise util.Abort(_('operation not supported over http')) |
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66 | 66 | |
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67 | 67 | def do_cmd(self, cmd, **args): |
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68 | 68 | data = args.pop('data', None) |
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69 | 69 | headers = args.pop('headers', {}) |
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70 | 70 | self.ui.debug(_("sending %s command\n") % cmd) |
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71 | 71 | q = {"cmd": cmd} |
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72 | 72 | q.update(args) |
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73 | 73 | qs = '?%s' % urllib.urlencode(q) |
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74 | 74 | cu = "%s%s" % (self._url, qs) |
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75 | 75 | try: |
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76 | 76 | if data: |
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77 | 77 | self.ui.debug(_("sending %s bytes\n") % len(data)) |
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78 | 78 | resp = self.urlopener.open(urllib2.Request(cu, data, headers)) |
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79 | 79 | except urllib2.HTTPError, inst: |
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80 | 80 | if inst.code == 401: |
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81 | 81 | raise util.Abort(_('authorization failed')) |
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82 | 82 | raise |
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83 | 83 | except httplib.HTTPException, inst: |
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84 | 84 | self.ui.debug(_('http error while sending %s command\n') % cmd) |
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85 | 85 | self.ui.print_exc() |
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86 | 86 | raise IOError(None, inst) |
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87 | 87 | except IndexError: |
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88 | 88 | # this only happens with Python 2.3, later versions raise URLError |
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89 | 89 | raise util.Abort(_('http error, possibly caused by proxy setting')) |
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90 | 90 | # record the url we got redirected to |
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91 | 91 | resp_url = resp.geturl() |
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92 | 92 | if resp_url.endswith(qs): |
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93 | 93 | resp_url = resp_url[:-len(qs)] |
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94 | 94 | if self._url != resp_url: |
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95 | 95 | self.ui.status(_('real URL is %s\n') % resp_url) |
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96 | 96 | self._url = resp_url |
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97 | 97 | try: |
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98 | 98 | proto = resp.getheader('content-type') |
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99 | 99 | except AttributeError: |
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100 | 100 | proto = resp.headers['content-type'] |
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101 | 101 | |
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102 | safeurl = url.hidepassword(self._url) | |
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102 | 103 | # accept old "text/plain" and "application/hg-changegroup" for now |
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103 | 104 | if not (proto.startswith('application/mercurial-') or |
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104 | 105 | proto.startswith('text/plain') or |
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105 | 106 | proto.startswith('application/hg-changegroup')): |
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106 | 107 | self.ui.debug(_("Requested URL: '%s'\n") % cu) |
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107 | 108 | raise error.RepoError(_("'%s' does not appear to be an hg repository") |
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108 |
% s |
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109 | % safeurl) | |
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109 | 110 | |
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110 | 111 | if proto.startswith('application/mercurial-'): |
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111 | 112 | try: |
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112 | 113 | version = proto.split('-', 1)[1] |
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113 | 114 | version_info = tuple([int(n) for n in version.split('.')]) |
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114 | 115 | except ValueError: |
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115 | 116 | raise error.RepoError(_("'%s' sent a broken Content-Type " |
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116 |
"header (%s)") % (s |
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117 | "header (%s)") % (safeurl, proto)) | |
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117 | 118 | if version_info > (0, 1): |
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118 | 119 | raise error.RepoError(_("'%s' uses newer protocol %s") % |
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119 |
(s |
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120 | (safeurl, version)) | |
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120 | 121 | |
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121 | 122 | return resp |
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122 | 123 | |
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123 | 124 | def do_read(self, cmd, **args): |
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124 | 125 | fp = self.do_cmd(cmd, **args) |
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125 | 126 | try: |
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126 | 127 | return fp.read() |
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127 | 128 | finally: |
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128 | 129 | # if using keepalive, allow connection to be reused |
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129 | 130 | fp.close() |
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130 | 131 | |
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131 | 132 | def lookup(self, key): |
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132 | 133 | self.requirecap('lookup', _('look up remote revision')) |
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133 | 134 | d = self.do_cmd("lookup", key = key).read() |
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134 | 135 | success, data = d[:-1].split(' ', 1) |
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135 | 136 | if int(success): |
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136 | 137 | return bin(data) |
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137 | 138 | raise error.RepoError(data) |
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138 | 139 | |
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139 | 140 | def heads(self): |
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140 | 141 | d = self.do_read("heads") |
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141 | 142 | try: |
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142 | 143 | return map(bin, d[:-1].split(" ")) |
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143 | 144 | except: |
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144 | 145 | raise error.ResponseError(_("unexpected response:"), d) |
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145 | 146 | |
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146 | 147 | def branches(self, nodes): |
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147 | 148 | n = " ".join(map(hex, nodes)) |
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148 | 149 | d = self.do_read("branches", nodes=n) |
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149 | 150 | try: |
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150 | 151 | br = [ tuple(map(bin, b.split(" "))) for b in d.splitlines() ] |
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151 | 152 | return br |
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152 | 153 | except: |
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153 | 154 | raise error.ResponseError(_("unexpected response:"), d) |
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154 | 155 | |
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155 | 156 | def between(self, pairs): |
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156 | 157 | batch = 8 # avoid giant requests |
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157 | 158 | r = [] |
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158 | 159 | for i in xrange(0, len(pairs), batch): |
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159 | 160 | n = " ".join(["-".join(map(hex, p)) for p in pairs[i:i + batch]]) |
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160 | 161 | d = self.do_read("between", pairs=n) |
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161 | 162 | try: |
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162 | 163 | r += [ l and map(bin, l.split(" ")) or [] for l in d.splitlines() ] |
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163 | 164 | except: |
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164 | 165 | raise error.ResponseError(_("unexpected response:"), d) |
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165 | 166 | return r |
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166 | 167 | |
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167 | 168 | def changegroup(self, nodes, kind): |
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168 | 169 | n = " ".join(map(hex, nodes)) |
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169 | 170 | f = self.do_cmd("changegroup", roots=n) |
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170 | 171 | return util.chunkbuffer(zgenerator(f)) |
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171 | 172 | |
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172 | 173 | def changegroupsubset(self, bases, heads, source): |
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173 | 174 | self.requirecap('changegroupsubset', _('look up remote changes')) |
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174 | 175 | baselst = " ".join([hex(n) for n in bases]) |
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175 | 176 | headlst = " ".join([hex(n) for n in heads]) |
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176 | 177 | f = self.do_cmd("changegroupsubset", bases=baselst, heads=headlst) |
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177 | 178 | return util.chunkbuffer(zgenerator(f)) |
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178 | 179 | |
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179 | 180 | def unbundle(self, cg, heads, source): |
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180 | 181 | # have to stream bundle to a temp file because we do not have |
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181 | 182 | # http 1.1 chunked transfer. |
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182 | 183 | |
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183 | 184 | type = "" |
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184 | 185 | types = self.capable('unbundle') |
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185 | 186 | # servers older than d1b16a746db6 will send 'unbundle' as a |
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186 | 187 | # boolean capability |
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187 | 188 | try: |
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188 | 189 | types = types.split(',') |
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189 | 190 | except AttributeError: |
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190 | 191 | types = [""] |
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191 | 192 | if types: |
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192 | 193 | for x in types: |
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193 | 194 | if x in changegroup.bundletypes: |
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194 | 195 | type = x |
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195 | 196 | break |
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196 | 197 | |
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197 | 198 | tempname = changegroup.writebundle(cg, None, type) |
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198 | 199 | fp = url.httpsendfile(tempname, "rb") |
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199 | 200 | try: |
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200 | 201 | try: |
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201 | 202 | resp = self.do_read( |
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202 | 203 | 'unbundle', data=fp, |
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203 | 204 | headers={'Content-Type': 'application/octet-stream'}, |
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204 | 205 | heads=' '.join(map(hex, heads))) |
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205 | 206 | resp_code, output = resp.split('\n', 1) |
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206 | 207 | try: |
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207 | 208 | ret = int(resp_code) |
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208 | 209 | except ValueError, err: |
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209 | 210 | raise error.ResponseError( |
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210 | 211 | _('push failed (unexpected response):'), resp) |
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211 | 212 | self.ui.write(output) |
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212 | 213 | return ret |
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213 | 214 | except socket.error, err: |
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214 | 215 | if err[0] in (errno.ECONNRESET, errno.EPIPE): |
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215 | 216 | raise util.Abort(_('push failed: %s') % err[1]) |
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216 | 217 | raise util.Abort(err[1]) |
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217 | 218 | finally: |
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218 | 219 | fp.close() |
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219 | 220 | os.unlink(tempname) |
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220 | 221 | |
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221 | 222 | def stream_out(self): |
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222 | 223 | return self.do_cmd('stream_out') |
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223 | 224 | |
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224 | 225 | class httpsrepository(httprepository): |
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225 | 226 | def __init__(self, ui, path): |
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226 | 227 | if not url.has_https: |
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227 | 228 | raise util.Abort(_('Python support for SSL and HTTPS ' |
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228 | 229 | 'is not installed')) |
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229 | 230 | httprepository.__init__(self, ui, path) |
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230 | 231 | |
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231 | 232 | def instance(ui, path, create): |
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232 | 233 | if create: |
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233 | 234 | raise util.Abort(_('cannot create new http repository')) |
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234 | 235 | try: |
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235 | 236 | if path.startswith('https:'): |
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236 | 237 | inst = httpsrepository(ui, path) |
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237 | 238 | else: |
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238 | 239 | inst = httprepository(ui, path) |
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239 | 240 | inst.between([(nullid, nullid)]) |
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240 | 241 | return inst |
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241 | 242 | except error.RepoError: |
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242 | 243 | ui.note('(falling back to static-http)\n') |
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243 | 244 | return statichttprepo.instance(ui, "static-" + path, create) |
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