1 | #! perl # optional depends=tcp |
1 | #! perl # optional depends=tcp |
2 | |
2 | |
3 | # http server |
3 | # http server - this tries to speak enough of http 1.1 (and 1.0) |
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4 | # to work with browsers. it does not even attempt to be a complete |
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5 | # implementation, although it should be mostly correct for that it does. |
4 | |
6 | |
5 | sub send { |
7 | sub send { |
6 | my $self = $_[0]; |
8 | my $self = $_[0]; |
7 | |
9 | |
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10 | if (length $self->{wbuf}) { |
8 | $self->{wbuf} .= $_[1]; |
11 | $self->{wbuf} .= $_[1]; |
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12 | } else { |
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13 | $self->{wbuf} .= $_[1]; |
9 | |
14 | |
10 | $self->{ww} ||= AE::io $self->{fh}, 1, sub { |
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11 | my $len = syswrite $self->{fh}, $self->{wbuf}; |
15 | my $len = syswrite $self->{fh}, $self->{wbuf}; |
12 | substr $self->{wbuf}, 0, $len, ""; |
16 | substr $self->{wbuf}, 0, $len, ""; |
13 | |
17 | |
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18 | $self->{ww} = AE::io $self->{fh}, 1, sub { |
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19 | my $len = syswrite $self->{fh}, $self->{wbuf}; |
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20 | substr $self->{wbuf}, 0, $len, ""; |
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21 | |
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22 | delete $self->{ww} unless $len; # in case of errors, stop |
14 | delete $self->{ww} unless length $self->{wbuf}; |
23 | delete $self->{ww} unless length $self->{wbuf}; |
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24 | } if length $self->{wbuf}; |
15 | }; |
25 | } |
16 | } |
26 | } |
17 | |
27 | |
18 | sub fatal { |
28 | sub fatal { |
19 | my ($self) = @_; |
29 | my ($self) = @_; |
20 | |
30 | |
21 | $self->send ("HTTP/1.1 500 internal error\015\012"); |
31 | $self->send ("HTTP/1.1 500 internal error\015\012"); |
22 | delete $self->{rw}; |
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23 | } |
32 | } |
24 | |
33 | |
25 | sub respond { |
34 | sub respond { |
26 | $_[0]->send ("HTTP/1.1 $_[1]\015\012" |
35 | $_[0]->send ("HTTP/1.1 $_[1]\015\012" |
27 | . "content-length: " . (0 + length $_[2]) . "\015\012" |
36 | . "content-length: " . (0 + length $_[2]) . "\015\012" |
28 | . "access-control-allow-origin: *\015\012" |
37 | . "access-control-allow-origin: *\015\012" |
29 | . "$_[3]\015\012$_[2]"); |
38 | . $_[0]{ohdr} |
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39 | . "$_[3]\015\012" . ($_[0]{give_head} ? "" : $_[2])); |
30 | } |
40 | } |
31 | |
41 | |
32 | my $cache_headers = "cache-control: max-age=8640000\015\012" |
42 | my $cache_headers = "cache-control: max-age=8640000\015\012" |
33 | . "etag: \"0\"\015\012"; |
43 | . "etag: \"0\"\015\012"; |
34 | |
44 | |
35 | sub content_type { |
45 | sub content_type($$) { |
36 | return "content-type: image/png\015\012" if $_[0] =~ /^\x89PNG/; |
46 | return "content-type: image/png\015\012" if $_[1] =~ /^\x89PNG/; |
37 | return "content-type: image/jpeg\015\012" if $_[0] =~ /^......JFIF/s; |
47 | return "content-type: image/jpeg\015\012" if $_[1] =~ /^......JFIF/s; |
38 | return "content-type: audio/wav\015\012" if $_[0] =~ /^RIFF/; |
48 | return "content-type: audio/wav\015\012" if $_[1] =~ /^RIFF/; |
39 | return "content-type: audio/ogg\015\012" if $_[0] =~ /^OggS/; |
49 | return "content-type: audio/ogg\015\012" if $_[1] =~ /^OggS/; |
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50 | return "content-type: text/css; charset=utf-8\015\012" if $_[0] =~ /\.css$/; |
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51 | return "content-type: application/javascript; charset=utf-8\015\012" if $_[0] =~ /\.js$/; |
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52 | return "content-type: text/html; charset=utf-8\015\012" if $_[1] =~ /^</; |
40 | |
53 | |
41 | "content-type: text/plain\015\012" |
54 | "content-type: text/plain; charset=utf-8\015\012" |
42 | } |
55 | } |
43 | |
56 | |
44 | sub handle_req { |
57 | sub handle_con { |
45 | my ($self) = @_; |
58 | my ($self) = @_; |
46 | |
59 | |
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60 | my ($method, $uri, $http, $req, $close, $len); |
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61 | |
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62 | while () { |
47 | while ($self->{rbuf} =~ s/^( (?: [^\015]+ | . )+? )\015\012\015\012//xs) { |
63 | while ($self->{rbuf} =~ s/^( (?: [^\015]+ | . )+? \015\012)\015\012//xs) { |
48 | my $req = $1; |
64 | $req = $1; |
49 | |
65 | |
50 | # we ignore headers atm. |
66 | # we ignore headers atm. |
51 | |
67 | |
52 | $req =~ m%^GET (\S+) HTTP/[0-9.]+\015\012%i |
68 | $req =~ m%^(\S+) (\S+) HTTP/([0-9.]+)\015\012%ig |
53 | or return $self->fatal; |
69 | or return $self->respond ("400 bad request"); |
54 | |
70 | |
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71 | $method = uc $1; |
55 | my $uri = $1; |
72 | $uri = $2; |
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73 | $http = $3; |
56 | |
74 | |
57 | $uri =~ s%^http://[^/]*%%i; # just in case |
75 | $uri =~ s%^http://[^/]*%%i; # just in case |
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76 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; # %-decode |
58 | |
77 | |
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78 | if (0) { |
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79 | my %hdr; |
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80 | |
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81 | $hdr{lc $1} .= ",$2" |
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82 | while $req =~ /\G |
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83 | ([^:\000-\037]*): |
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84 | [\011\040]* |
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85 | ((?: [^\012]+ | \012[\011\040] )*) |
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86 | \012 |
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87 | /gxc; |
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88 | |
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89 | $req =~ /\G$/ |
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90 | or return $self->respond ("400 bad request"); |
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91 | |
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92 | # remove the "," prefix we added to all headers above |
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93 | substr $_, 0, 1, "" |
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94 | for values %hdr; |
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95 | } |
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96 | |
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97 | if ($http == 1.0) { |
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98 | if ($req =~ /^connection\s*:\s*keep-alive/mi) { |
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99 | $self->{ohdr} = "connection: keep-alive\015\012"; |
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100 | } else { |
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101 | $self->{ohdr} = "connection: close\015\012"; |
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102 | $close = 1; |
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103 | } |
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104 | } |
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105 | |
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106 | $self->{give_head} = $method eq "HEAD" |
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107 | and $method = "GET"; |
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108 | |
59 | cf::debug "HTTP GET: $self->{id} $uri"; |
109 | cf::debug "HTTP $method: $self->{id} $uri"; |
60 | |
110 | |
61 | if ($uri =~ m%^/([0-9a-f]+)(M?)$%) { # faces |
111 | if ($method ne "GET") { |
62 | my $want_meta = $1; |
112 | $self->respond ("405 no $method"); |
63 | my $idx = $cf::FACEHASH{pack "H*", $2}; |
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64 | |
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65 | $idx |
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66 | or do { $self->respond ("404 illegal face name"), next }; |
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67 | |
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68 | if ($req =~ /if-none-match/i) { # dirtiest hack evar |
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69 | $self->respond ("304 not modified", "", $cache_headers); |
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70 | next; |
113 | next; |
71 | } |
114 | } |
72 | |
115 | |
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116 | # not needed for GET, but who knows |
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117 | $self->send ("HTTP/1.1 100 go on\015\012") |
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118 | if $req =~ /^expect:.*\b100-continue\b/i; |
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119 | |
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120 | if ($uri =~ m%^/([0-9a-f]+)(M?)$%) { # faces |
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121 | my $want_meta = $2; |
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122 | my $idx = $cf::face::HASH{pack "H*", $1}; |
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123 | |
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124 | $idx |
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125 | or do { $self->respond ("404 illegal face name"), next }; |
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126 | |
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127 | if ($req =~ /if-none-match/i) { # dirtiest hack evar |
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128 | $self->respond ("304 not modified", "", $cache_headers); |
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129 | next; |
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130 | } |
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131 | |
73 | my $type = cf::face::get_type $idx, 1; |
132 | my $type = cf::face::get_type $idx; |
74 | my $data = cf::face::get_data $idx, 1; |
133 | my $data = cf::face::get_data $idx; |
75 | |
134 | |
76 | (my $meta, $data) = unpack "(w/a*)*", $data |
135 | (my $meta, $data) = unpack "(w/a*)*", $data |
77 | if $type & 1; |
136 | if $type & 1; |
78 | |
137 | |
79 | if ($want_meta) { |
138 | if ($want_meta) { |
80 | if ($type & 1) { |
139 | if ($type & 1) { |
81 | $self->respond ("200 OK", $meta, "content-type: text/plain\015\012" . $cache_headers); |
140 | $self->respond ("200 OK", $meta, "content-type: text/plain; charset=utf-8\015\012" . $cache_headers); |
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141 | } else { |
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142 | $self->respond ("404 type $type has no metadata"); |
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143 | } |
82 | } else { |
144 | } else { |
83 | $self->respond ("404 type $type has no metadata"); |
145 | $self->respond ("200 OK", $data, (content_type $uri, $data) . $cache_headers); |
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146 | } |
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147 | |
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148 | } elsif (my $idx = (cf::face::find "res/http$uri") || (cf::face::find "res/http${uri}index.html")) { |
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149 | # TODO: use etag (shudder) |
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150 | my $data = cf::face::get_data $idx; |
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151 | $self->respond ("200 OK", $data, (content_type $uri, $data) . $cache_headers); |
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152 | |
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153 | } elsif (cf::face::find "res/http$uri/index.html") { |
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154 | $self->respond ("302 dirslash", "", "location: $uri/\015\012"); |
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155 | |
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156 | } elsif ($uri eq "/debug") { # for debugging |
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157 | my @body = <<EOF; |
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158 | <html><head><style> |
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159 | th:nth-child(1) { text-align: right; } |
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160 | th:nth-child(2) { text-align: left; } |
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161 | th:nth-child(3) { text-align: right; } |
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162 | th:nth-child(4) { text-align: left; } |
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163 | th:nth-child(5) { text-align: left; } |
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164 | td:nth-child(1) { text-align: right; font-family: monospace;} |
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165 | td:nth-child(2) { text-align: left; font-family: monospace;} |
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166 | td:nth-child(3) { text-align: right; font-family: monospace;} |
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167 | td:nth-child(4) { text-align: left; } |
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168 | td:nth-child(5) { text-align: left; } |
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169 | </style><body> |
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170 | EOF |
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171 | for my $type (6, 5, 4, 3, 2, 1, 0) { |
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172 | push @body, "<h1>$type</h1><table><tr><th>#</th><th>csum</th><th>size</th><th>name</th><th>meta</th></tr>"; |
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173 | |
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174 | for (1 .. cf::face::faces_size - 1) { |
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175 | cf::cede_to_tick; |
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176 | |
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177 | next if $type != cf::face::get_type $_; |
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178 | my $name = cf::face::get_name $_; |
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179 | my $id = unpack "H*", cf::face::get_csum $_, 0; |
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180 | push @body, "<tr><td>$_</td><td>$id</td><td>$cf::face::SIZE[0][$_]</td><td><a href='$id'>$name</a></td>"; |
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181 | push @body, "<td><a href='${id}M'>meta</a>" if $type & 1; |
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182 | push @body, "</tr>"; |
84 | } |
183 | } |
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184 | |
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185 | push @body, "</table>"; |
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186 | } |
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187 | |
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188 | push @body, "</body></html>"; |
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189 | |
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190 | my $body = join "", @body; |
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191 | utf8::encode $body; |
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192 | $self->respond ("200 OK", $body, "content-type: text/html; charset=utf-8\015\012"); |
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193 | |
85 | } else { |
194 | } else { |
86 | $self->respond ("200 OK", $data, (content_type $data) . $cache_headers); |
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87 | } |
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88 | |
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89 | } elsif ($uri eq "/debug") { # for debugging |
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90 | my @body = "<html><body>"; |
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91 | |
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92 | for my $type (6, 5, 4, 3, 2, 1, 0) { |
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93 | push @body, "<h1>$type</h1>"; |
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94 | |
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95 | for (1 .. cf::face::faces_size - 1) { |
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96 | next if $type != cf::face::get_type $_; |
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97 | my $name = cf::face::get_name $_; |
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98 | my $id = unpack "H*", cf::face::get_chksum $_, 1; |
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99 | push @body, "$_ <a href='$id'>$name ($id)</a>"; |
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100 | push @body, " <a href='${id}M'>(meta)</a>" if $type & 1; |
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101 | push @body, "<br>"; |
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102 | } |
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103 | } |
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104 | |
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105 | push @body, "</body></html>"; |
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106 | |
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107 | $self->respond ("200 OK", (join "", @body), "Content-Type: text/html\015\012"); |
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108 | } elsif ($uri eq "/ws" && defined &ext::ws::server) { |
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109 | &ext::ws::server ($self->{id}, $self->{fh}, "$req\015\012\015\012$self->{rbuf}"); |
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110 | |
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111 | %$self = (); |
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112 | |
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113 | } else { |
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114 | $self->respond ("404 not found"); |
195 | $self->respond ("404 not found"); |
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196 | } |
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197 | |
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198 | cf::cede_to_tick; |
115 | } |
199 | } |
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200 | |
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201 | return if $close; # http 1.0 only currently |
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202 | return if length $self->{rbuf} > 8192; # headers too long |
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203 | |
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204 | Coro::AnyEvent::readable $self->{fh}, 6; |
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205 | |
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206 | $len = sysread $self->{fh}, $self->{rbuf}, 4096, length $self->{rbuf}; |
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207 | |
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208 | return if $len <= 0; |
116 | } |
209 | }; |
117 | } |
210 | } |
118 | |
211 | |
119 | our $DETECTOR = ext::tcp::register http => 64, sub { |
212 | our $DETECTOR = ext::tcp::register http => 64, sub { |
120 | # regex avoids conflict with websockets, which use /ws |
213 | # regex avoids conflict with websockets, which use /ws |
121 | m{^(?i:GET|HEAD|OPTIONS) \ (?! (?i:http://[^/]+)? /ws \ ) }x |
214 | m{^(?i:GET|HEAD|OPTIONS) \ (?! (?i:http://[^/]+)? /ws \ ) }x |
… | |
… | |
125 | fh => $_[1], |
218 | fh => $_[1], |
126 | rbuf => $_[2], |
219 | rbuf => $_[2], |
127 | wbuf => "", |
220 | wbuf => "", |
128 | }; |
221 | }; |
129 | |
222 | |
130 | $self->{rw} = AE::io $self->{fh}, 0, sub { |
223 | $self->{async} = Coro::async_pool { |
131 | my $len = sysread $self->{fh}, $self->{rbuf}, 4096, length $self->{rbuf}; |
224 | $Coro::current->nice (4); |
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225 | $Coro::current->{desc} = "http $self->{id}"; |
132 | |
226 | |
133 | if ($len == 0) { |
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134 | delete $self->{rw}; |
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135 | } else { |
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136 | $self->handle_req; |
227 | $self->handle_con; |
137 | |
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138 | delete $self->{rw} if length $self->{rbuf} > 8192; # headers too long |
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139 | } |
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140 | }; |
228 | }; |
141 | |
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142 | $self->handle_req; # in the unlikely case of the buffer already forming a valid request |
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143 | }; |
229 | }; |
144 | |
230 | |
145 | cf::register_exticmd http_faceurl => sub { |
231 | cf::register_exticmd http_faceurl => sub { |
146 | my ($ns) = @_; |
232 | my ($ns) = @_; |
147 | |
233 | |