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1 | #!/usr/bin/perl -w |
2 | |
3 | # OSM Map CGI - creating a HTML page that starts in the right place |
4 | |
5 | # The file from which we get the Template for Openlayers? |
6 | $openlayerstemplate = '/var/www/index.openlayers.html'; |
7 | |
8 | # Your should not need to change anything below this line |
9 | # ---------------------------------------------------------------------------- |
10 | |
11 | use CGI qw(:standard); |
12 | use CGI qw/escape unescape escapeHTML unescapeHTML/; |
13 | |
14 | print("Content-type: text/html\n\n"); |
15 | my $lon = -999.0; |
16 | my $lat = -999.0; |
17 | my $zoom = -1; |
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18 | my $baselayer = undef; |
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19 | if (defined(param('lon'))) { |
20 | $lon = param('lon'); |
21 | unless ($lon =~ m/^-{0,1}\d+\.\d+$/) { $lon = -999.0; } |
22 | if (($lon < -180.0) || ($lon > 180.0)) { $lon = -999.0; } |
23 | } |
24 | if (defined(param('lat'))) { |
25 | $lat = param('lat'); |
26 | unless ($lat =~ m/^-{0,1}\d+\.\d+$/) { $lat = -999.0; } |
27 | if (($lat < -90.0) || ($lat > 90.0)) { $lat = -999.0; } |
28 | } |
29 | if (defined(param('zoom'))) { |
30 | $zoom = param('zoom'); |
31 | unless ($zoom =~ m/^\d+$/) { $zoom = -1; } |
32 | if (($zoom < 0) || ($zoom > 30)) { $lat = -1; } |
33 | } |
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34 | if (defined(param('layers'))) { |
35 | my @layerlist = ('osmde', 'osmorg'); |
36 | my $layers = param('layers'); |
37 | my $i; |
38 | for ($i = 0; $i < int(@layerlist); $i++) { |
39 | if (substr($layers, $i, 1) eq 'B') { # This is our baselayer |
40 | $baselayer = $layerlist[$i]; |
41 | } |
42 | } |
43 | } |
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44 | my $OLF; |
45 | unless (open($OLF, '<' . $openlayerstemplate)) { |
46 | print("Sorry, failed to read my map template.\n"); exit(0); |
47 | } |
48 | while ($ll = <$OLF>) { |
49 | # var lon = 11.028847; |
50 | # var lat = 49.573836; |
51 | # var zoom = 16; |
52 | if ($lon >= -180.0) { |
53 | $ll =~ s/var\s+lon\s*=\s*-{0,1}\d+\.\d+;/var lon = $lon;/; |
54 | } |
55 | if ($lat >= -90.0) { |
56 | $ll =~ s/var\s+lat\s*=\s*-{0,1}\d+\.\d+;/var lat = $lat;/; |
57 | } |
58 | if ($zoom >= 0) { |
59 | $ll =~ s/var\s+zoom\s*=\s*\d+;/var zoom = $zoom;/; |
60 | } |
61 | if (($lon >= -180.0) && ($lat >= -180.0) && ($zoom >= 0)) { # All values required in that case |
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62 | my $rest = ''; |
63 | if (defined($baselayer)) { |
64 | $rest .= '&maptype=' . $baselayer; |
65 | } |
66 | $ll =~ s!<img src="(.*?)/staticmaplite\?.*?size=([^"&]+).*?"!<img src="$1/staticmaplite?center=$lat,$lon&zoom=$zoom&size=$2$rest"!; |
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67 | } |
68 | print($ll); |
69 | } |
70 | close($OLF); |