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def math_latex_download
params = @cgi.params
page = (params['p'][0] || '')
file_name = (params['file_name'][0] || '')
image_file = "#{@cache_path}/math_latex/#{page.escape}/#{file_name.escape}"
mime_type = "image/png"
header = Hash::new
header['Content-Type'] = mime_type
header['Last-Modified'] = CGI::rfc1123_date(File.mtime(image_file.untaint))
header['Content-Disposition'] = %Q|filename="#{file_name.to_sjis}"|
print @cgi.header(header)
print open(image_file.untaint, "rb").read
nil
end
add_header_proc {
<<-EOS
<style type="text/css"><!--
img.math {
vertical-align: middle;
}
div.displaymath {
text-align: center;
}
--></style>
EOS
}
def math_init
@conf['math.latex.ptsize'] ||= '12'
@conf['math.latex.documentclass'] ||= 'report'
@conf['math.latex.preamble'] ||= ''
@conf['math.latex.log'] ||= false
@conf['math.latex.secure'] ||= true
unless (@conf['math.latex.secure'] || true) then
@conf['math.latex.latex'] ||= 'latex %.tex'
@conf['math.latex.dvips'] ||= 'dvips %.dvi'
@conf['math.latex.convert'] ||= 'convert -antialias -transparent white -trim %.ps %.png'
end
nil
end
if @mode != 'conf' and @mode != 'saveconf' then
add_body_enter_proc do
math_init
end
end
def math_clear_cache
cache_path = "#{@conf.cache_path}/math_latex".untaint
Dir.glob("#{cache_path}/*") do |ent|
require 'fileutils'
ent.untaint
FileUtils.rm_rf(ent) if File.directory?(ent)
end
end
def saveconf_math
if @mode == 'saveconf' then
@conf['math.latex.ptsize'] = @cgi.params['math.latex.ptsize'][0]
@conf['math.latex.documentclass'] = @cgi.params['math.latex.documentclass'][0]
@conf['math.latex.preamble'] = @cgi.params['math.latex.preamble'][0]
@conf['math.latex.log'] = (@cgi.params['math.latex.log'][0] == 'true')
unless (@conf['math.latex.secure'] || true) then
@conf['math.latex.latex'] = @cgi.params['math.latex.latex'][0]
@conf['math.latex.dvips'] = @cgi.params['math.latex.dvips'][0]
@conf['math.latex.convert'] = @cgi.params['math.latex.convert'][0]
end
math_init
if @cgi.params['math.latex.cache_clear'][0] == 'true' then
math_clear_cache
end
end
end
add_conf_proc('math', 'math style') do
saveconf_math
math_init
str = <<-HTML
<h3 class="subtitle">#{label_math_latex_ptsize}</h3>
<p><input type="text" name="math.latex.ptsize" value="#{@conf['math.latex.ptsize']}" size="5">pt</p>
<h3 class="subtitle">#{label_math_latex_documentclass}</h3>
<p><input type="text" name="math.latex.documentclass" value="#{@conf['math.latex.documentclass']}" size="20"></p>
<h3 class="subtitle">#{label_math_latex_preamble}</h3>
<p><textarea name="math.latex.preamble" cols="60" rows="8">#{CGI::escapeHTML( @conf['math.latex.preamble'])}</textarea></p>
<h3 class="subtitle">#{label_math_latex_log}</h3>
<p><input type="checkbox" name="math.latex.log" value="true"#{@conf['math.latex.log'] ? ' checked="checked"' : ""}>#{label_math_latex_log_description}</p>
<h3 class="subtitle">#{label_math_latex_cache_clear}</h3>
<p><input type="checkbox" name="math.latex.cache_clear" value="true">#{label_math_latex_cache_clear_description}</p>
HTML
# NOTE that following items are disabled now because it is not
# suitable for setting these through CGI. If you want to configure
# these values on your head, do set the math.latex.secure to false.
unless @conf['math.latex.secure'] then
str += <<-HTML
<h3 class="subtitle">#{label_math_latex_latex}</h3>
<p><input type="text" name="math.latex.latex" value="#{CGI::escapeHTML(@conf['math.latex.latex'])}"></p>
<h3 class="subtitle">#{label_math_latex_dvips}</h3>
<p><input type="text" name="math.latex.dvips" value="#{CGI::escapeHTML(@conf['math.latex.dvips'])}"></p>
<h3 class="subtitle">#{label_math_latex_convert}</h3>
<p><input type="text" name="math.latex.convert" value="#{CGI::escapeHTML(@conf['math.latex.convert'])}"></p>
HTML
end
str
end
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