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@@ -1,179 +1,186 b'' | |||
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1 | 1 | # statichttprepo.py - simple http repository class for mercurial |
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2 | 2 | # |
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3 | 3 | # This provides read-only repo access to repositories exported via static http |
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4 | 4 | # |
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5 | 5 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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6 | 6 | # |
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7 | 7 | # This software may be used and distributed according to the terms of the |
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8 | 8 | # GNU General Public License version 2 or any later version. |
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9 | 9 | |
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10 | 10 | from __future__ import absolute_import |
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11 | 11 | |
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12 | 12 | import errno |
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13 | 13 | import os |
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14 | 14 | import urllib |
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15 | 15 | import urllib2 |
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16 | 16 | |
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17 | 17 | from .i18n import _ |
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18 | 18 | from . import ( |
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19 | 19 | byterange, |
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20 | 20 | changelog, |
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21 | 21 | error, |
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22 | 22 | localrepo, |
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23 | 23 | manifest, |
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24 | 24 | namespaces, |
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25 | 25 | scmutil, |
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26 | 26 | store, |
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27 | 27 | url, |
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28 | 28 | util, |
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29 | 29 | ) |
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30 | 30 | |
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31 | 31 | class httprangereader(object): |
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32 | 32 | def __init__(self, url, opener): |
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33 | 33 | # we assume opener has HTTPRangeHandler |
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34 | 34 | self.url = url |
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35 | 35 | self.pos = 0 |
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36 | 36 | self.opener = opener |
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37 | 37 | self.name = url |
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38 | ||
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39 | def __enter__(self): | |
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40 | return self | |
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41 | ||
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42 | def __exit__(self, exc_type, exc_value, traceback): | |
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43 | self.close() | |
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44 | ||
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38 | 45 | def seek(self, pos): |
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39 | 46 | self.pos = pos |
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40 | 47 | def read(self, bytes=None): |
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41 | 48 | req = urllib2.Request(self.url) |
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42 | 49 | end = '' |
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43 | 50 | if bytes: |
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44 | 51 | end = self.pos + bytes - 1 |
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45 | 52 | if self.pos or end: |
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46 | 53 | req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) |
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47 | 54 | |
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48 | 55 | try: |
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49 | 56 | f = self.opener.open(req) |
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50 | 57 | data = f.read() |
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51 | 58 | code = f.code |
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52 | 59 | except urllib2.HTTPError as inst: |
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53 | 60 | num = inst.code == 404 and errno.ENOENT or None |
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54 | 61 | raise IOError(num, inst) |
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55 | 62 | except urllib2.URLError as inst: |
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56 | 63 | raise IOError(None, inst.reason[1]) |
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57 | 64 | |
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58 | 65 | if code == 200: |
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59 | 66 | # HTTPRangeHandler does nothing if remote does not support |
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60 | 67 | # Range headers and returns the full entity. Let's slice it. |
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61 | 68 | if bytes: |
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62 | 69 | data = data[self.pos:self.pos + bytes] |
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63 | 70 | else: |
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64 | 71 | data = data[self.pos:] |
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65 | 72 | elif bytes: |
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66 | 73 | data = data[:bytes] |
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67 | 74 | self.pos += len(data) |
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68 | 75 | return data |
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69 | 76 | def readlines(self): |
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70 | 77 | return self.read().splitlines(True) |
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71 | 78 | def __iter__(self): |
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72 | 79 | return iter(self.readlines()) |
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73 | 80 | def close(self): |
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74 | 81 | pass |
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75 | 82 | |
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76 | 83 | def build_opener(ui, authinfo): |
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77 | 84 | # urllib cannot handle URLs with embedded user or passwd |
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78 | 85 | urlopener = url.opener(ui, authinfo) |
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79 | 86 | urlopener.add_handler(byterange.HTTPRangeHandler()) |
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80 | 87 | |
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81 | 88 | class statichttpvfs(scmutil.abstractvfs): |
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82 | 89 | def __init__(self, base): |
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83 | 90 | self.base = base |
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84 | 91 | |
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85 | 92 | def __call__(self, path, mode='r', *args, **kw): |
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86 | 93 | if mode not in ('r', 'rb'): |
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87 | 94 | raise IOError('Permission denied') |
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88 | 95 | f = "/".join((self.base, urllib.quote(path))) |
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89 | 96 | return httprangereader(f, urlopener) |
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90 | 97 | |
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91 | 98 | def join(self, path): |
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92 | 99 | if path: |
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93 | 100 | return os.path.join(self.base, path) |
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94 | 101 | else: |
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95 | 102 | return self.base |
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96 | 103 | |
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97 | 104 | return statichttpvfs |
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98 | 105 | |
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99 | 106 | class statichttppeer(localrepo.localpeer): |
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100 | 107 | def local(self): |
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101 | 108 | return None |
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102 | 109 | def canpush(self): |
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103 | 110 | return False |
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104 | 111 | |
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105 | 112 | class statichttprepository(localrepo.localrepository): |
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106 | 113 | supported = localrepo.localrepository._basesupported |
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107 | 114 | |
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108 | 115 | def __init__(self, ui, path): |
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109 | 116 | self._url = path |
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110 | 117 | self.ui = ui |
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111 | 118 | |
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112 | 119 | self.root = path |
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113 | 120 | u = util.url(path.rstrip('/') + "/.hg") |
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114 | 121 | self.path, authinfo = u.authinfo() |
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115 | 122 | |
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116 | 123 | opener = build_opener(ui, authinfo) |
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117 | 124 | self.opener = opener(self.path) |
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118 | 125 | self.vfs = self.opener |
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119 | 126 | self._phasedefaults = [] |
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120 | 127 | |
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121 | 128 | self.names = namespaces.namespaces() |
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122 | 129 | |
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123 | 130 | try: |
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124 | 131 | requirements = scmutil.readrequires(self.vfs, self.supported) |
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125 | 132 | except IOError as inst: |
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126 | 133 | if inst.errno != errno.ENOENT: |
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127 | 134 | raise |
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128 | 135 | requirements = set() |
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129 | 136 | |
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130 | 137 | # check if it is a non-empty old-style repository |
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131 | 138 | try: |
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132 | 139 | fp = self.vfs("00changelog.i") |
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133 | 140 | fp.read(1) |
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134 | 141 | fp.close() |
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135 | 142 | except IOError as inst: |
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136 | 143 | if inst.errno != errno.ENOENT: |
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137 | 144 | raise |
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138 | 145 | # we do not care about empty old-style repositories here |
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139 | 146 | msg = _("'%s' does not appear to be an hg repository") % path |
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140 | 147 | raise error.RepoError(msg) |
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141 | 148 | |
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142 | 149 | # setup store |
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143 | 150 | self.store = store.store(requirements, self.path, opener) |
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144 | 151 | self.spath = self.store.path |
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145 | 152 | self.svfs = self.store.opener |
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146 | 153 | self.sjoin = self.store.join |
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147 | 154 | self._filecache = {} |
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148 | 155 | self.requirements = requirements |
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149 | 156 | |
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150 | 157 | self.manifest = manifest.manifest(self.svfs) |
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151 | 158 | self.changelog = changelog.changelog(self.svfs) |
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152 | 159 | self._tags = None |
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153 | 160 | self.nodetagscache = None |
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154 | 161 | self._branchcaches = {} |
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155 | 162 | self._revbranchcache = None |
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156 | 163 | self.encodepats = None |
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157 | 164 | self.decodepats = None |
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158 | 165 | self._transref = None |
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159 | 166 | |
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160 | 167 | def _restrictcapabilities(self, caps): |
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161 | 168 | caps = super(statichttprepository, self)._restrictcapabilities(caps) |
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162 | 169 | return caps.difference(["pushkey"]) |
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163 | 170 | |
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164 | 171 | def url(self): |
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165 | 172 | return self._url |
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166 | 173 | |
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167 | 174 | def local(self): |
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168 | 175 | return False |
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169 | 176 | |
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170 | 177 | def peer(self): |
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171 | 178 | return statichttppeer(self) |
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172 | 179 | |
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173 | 180 | def lock(self, wait=True): |
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174 | 181 | raise error.Abort(_('cannot lock static-http repository')) |
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175 | 182 | |
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176 | 183 | def instance(ui, path, create): |
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177 | 184 | if create: |
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178 | 185 | raise error.Abort(_('cannot create new static-http repository')) |
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179 | 186 | return statichttprepository(ui, path[7:]) |
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