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# coding: utf-8
=begin
* Name: SiSU
* Description: a framework for document structuring, publishing and search
* Author: Ralph Amissah
* Copyright: (C) 1997 - 2010, Ralph Amissah, All Rights Reserved.
* License: GPL 3 or later:
SiSU, a framework for document structuring, publishing and search
Copyright (C) Ralph Amissah
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
If you have Internet connection, the latest version of the GPL should be
available at these locations:
<http://www.fsf.org/licensing/licenses/gpl.html>
<http://www.gnu.org/licenses/gpl.html>
<http://www.jus.uio.no/sisu/gpl.fsf/toc.html>
<http://www.jus.uio.no/sisu/gpl.fsf/doc.html>
<http://www.jus.uio.no/sisu/gpl.fsf/plain.txt>
* SiSU uses:
* Standard SiSU markup syntax,
* Standard SiSU meta-markup syntax, and the
* Standard SiSU object citation numbering and system
* Hompages:
<http://www.jus.uio.no/sisu>
<http://www.sisudoc.org>
* Download:
<http://www.jus.uio.no/sisu/SiSU/download.html>
* Ralph Amissah
<ralph@amissah.com>
<ralph.amissah@gmail.com>
** Description: generates naive cgi search form for search of sisu database (pgsql sqlite)
=end
module SiSU_CGI_pgsql #% database building documents
require "#{SiSU_lib}/sysenv" # sysenv.rb
require "#{SiSU_lib}/cgi_sql_common" # cgi_sql_common.rb
include SiSU_CGI_sql
class SiSU_search_pgsql < SiSU_CGI_common
def initialize(opt,webserv)
@opt,@webserv=opt,webserv
@env=SiSU_Env::Info_env.new('',opt)
@sys=SiSU_Env::System_call.new
@image_src="#{@env.url.webserv_cgi}/_sisu/image_sys"
@common=SiSU_CGI_sql::SiSU_CGI_common.new(@webserv,@opt.cmd,@image_src,@env)
@db=SiSU_Env::Info_db.new
@cgi_file_name="#{Db[:name_prefix_db]}pgsql.cgi"
end
def pgsql
serve=[]
if @sys.psql
available_db_table=`psql --list` # system call requires psql
available_db=available_db_table.scan(/(#{Db[:name_prefix]}\S+)/) if not available_db_table.nil?
if available_db \
and available_db.class==Array
available_db.flatten.each do |x|
serve << x.gsub(/#{Db[:name_prefix]}(\S+)/,'\1')
end
else put "WARNING: no postgresql database available, (have you created one?)"
end
serve.sort!
f1,f2,f3='','',''
serve.each do |x|
f1 << %{ <option value="#{Db[:name_prefix]}#{x}">#{x}</option>\n} unless x =~/apache|sisu\/image/ #check
end
f2 << %{ selected_db=case cgi['db']\n}
serve.each do |x|
f2 << %{ when /#{Db[:name_prefix]}#{x}/; '<option value="#{Db[:name_prefix]}#{x}">#{x}</option>'\n} unless x =~/apache|sisu\/image/ #check
end
end
f2 << " end\n"
if FileTest.writable?('.')
output=File.open(@cgi_file_name,'w')
output << header0 << header1 << header_desc << header2 << f1 << buttons1 << buttons1_pgsql << buttons2 << search_request << search_statement << search_statement_common << search_query1 << @common.pages << search_query2 << @common.tail << @common.main1 << f2 << dbi_connect << @common.main2
a=%{ generated sisu_pgsql.cgi,
BASED ON ALREADY EXISTING directories that could potentially be used to populate postgresql db, (-D)
}
SiSU_Screen::Ansi.new(@opt.cmd,a).print_grey
c=case @webserv
when /pwd/; ''
else "if necessary make the directory /usr/lib/cgi-bin :
sudo cp -vi #{Dir.pwd}/#{@cgi_file_name} /usr/lib/cgi-bin/.
sudo chmod -v 755 /usr/lib/cgi-bin/#{@cgi_file_name}
sudo ln -s /usr/lib/cgi-bin/#{@cgi_file_name} /usr/lib/cgi-bin/sisu_pgsql.cgi
(copy #{@cgi_file_name} to your cgi directory) set file permissions to 755, and make symbolic link to sisu_pgsql.cgi"
end
a=%{#{c}
#{@env.webserv_base_cgi}/cgi-bin/sisu_pgsql.cgi
}
SiSU_Screen::Ansi.new(@opt.cmd,a).warn
a="postgresql db used for present directory: #{@db.psql.db}"
b="\n\t(to create and populate postgresql database see 'man sisu' and in particular the -D flag)\n\t[the database to be used for this directory (#{@db.psql.db}) will have to be created manually if it does not exist,\n\tsee 'sisu --help sql'\n\tif you have permission to create databases:\n\t'sisu -d --createdb'\n\tor using postgresql tools directly:\n\t'createdb #{@db.psql.db}'\n\tfor a list of existing databases try 'psql --list']"
SiSU_Screen::Ansi.new(@opt.cmd,a,b).txt_cyan
else puts 'failed in attempt to write sisu_pgsql.cgi to present directory, is directory writable?'
end
end
def header0
<<-WOK_SQL
#!/usr/bin/env ruby
=begin
#{about}
* Description: generates naive cgi search form for search of sisu database (pgsql)
#{gpl}
=end
require 'cgi'
require 'fcgi'
require 'dbi'
@version='sisu_pgsql'
@image_src="#{@env.url.webserv_cgi}/_sisu/image_sys"
@hosturl_db="#{@env.url.webserv_base_cgi}"
@hosturl_files="#{@env.url.webserv_files_from_db}"
@port="#{@db.psql.port}"
@db_name_prefix="#{Db[:name_prefix]}"
user='#{@env.user}' # check user name for access to pg database: '#{@env.user}'
WOK_SQL
end
def search_statement
<<-'WOK_SQL'
class Dbi_search_string
def initialize(l,t,q,cse=false)
@l,@t,@q,@c=l,t,q,cse
end
def string
search={ :search => [],:flag => false }
if @t =~/\S+/ or @q =~/\S+/
if @t =~/\S+/; unescaped_search=CGI.unescape(@t)
elsif @q =~/\S+/; unescaped_search=CGI.unescape(@q)
end
search_construct=[]
if @c
unescaped_search.gsub!(/\s*(AND|OR)\s*/,"' \) \\1 #{@l}~\( '")
unescaped_search.gsub!(/(.+)/,"#{@l}~\( '\\1' \)")
else
unescaped_search.gsub!(/\s*(AND|OR)\s*/,"' \) \\1 #{@l}~*\( '")
unescaped_search.gsub!(/(.+)/,"#{@l}~*\( '\\1' \)")
end
search_construct << unescaped_search
search_construct=search_construct.join(' ')
search[:search] << search_construct
search[:flag]=true
search
end
search
end
end
WOK_SQL
end
def search_query1
<<-'WOK_SQL'
@search_text,@search_endnotes=[],[]
search[:text].flatten.each {|x| @search_text << "#{x} AND " }
@search_text=@search_text.join.gsub!(/AND\s+$/m,'') #watch
@search_text.gsub!(/(doc_objects\.clean~[*]?\(\s*'[^']+'\s*\)\s+(?:(?:AND|OR)\s+doc_objects\.clean~[*]?\(\s*'[^']+'\s*\))+)/,'(\1)')
search[:endnotes].flatten.each{|x| @search_endnotes << "#{x} AND " }
@search_endnotes=@search_endnotes.join.gsub!(/AND\s+$/m,'') #watch
@search_endnotes.gsub!(/(endnotes\.clean~\(\s*'[^']+'\s*\)\s+(?:(?:AND|OR)\s+endnotes\.clean~\(\s*'[^']+'\s*\))+)/,'(\1)')
end
WOK_SQL
end
def search_query2
<<-'WOK_SQL'
def sql_select_body
limit ||=@@limit
offset ||=@@offset
@sql_statement[:body]=%{SELECT metadata_and_text.title, metadata_and_text.creator_author, metadata_and_text.src_filename, metadata_and_text.notes_suffix, doc_objects.body, doc_objects.seg, doc_objects.ocn, metadata_and_text.tid FROM doc_objects, metadata_and_text WHERE (#{@search_text}) AND doc_objects.metadata_tid = metadata_and_text.tid ORDER BY metadata_and_text.title, metadata_and_text.src_filename, doc_objects.ocn}
@sql_statement[:range]=%{LIMIT #{limit} OFFSET #{offset} ;}
select=@sql_statement[:body] + ' ' + @sql_statement[:range]
select
end
def sql_select_endnotes
limit ||=@@limit
offset ||=@@offset
@sql_statement[:endnotes]=%{SELECT metadata_and_text.title, metadata_and_text.creator_author, metadata_and_text.src_filename, endnotes.body, endnotes.nr, endnotes.ocn, endnotes.metadata_tid FROM metadata_and_text, endnotes WHERE (#{@search_endnotes}) AND metadata_and_text.tid = endnotes.metadata_tid ORDER BY metadata_and_text.title, metadata_and_text.src_filename, endnotes.nr}
@sql_statement[:range]=%{LIMIT #{limit} OFFSET #{offset} ;}
select=@sql_statement[:endnotes] + ' ' + @sql_statement[:range]
select
end
def sql_select_body_format
%{<font color="#666666" size="2">#{sql_select_body}</font>}
end
def sql_select_endnotes_format
%{<font color="#666666" size="2">#{sql_select_endnotes}</font>}
end
def contents
@conn.select_all(sql_select_body)
end
def endnotes
@conn.select_all(sql_select_endnotes)
end
end
WOK_SQL
end
def buttons1_pgsql
<<-'WOK_SQL'
<input type="checkbox" name="casesense" #{@checked_case}> case sensitive
WOK_SQL
end
def dbi_connect
<<-'WOK_SQL'
dbi="dbi:Pg:database=#{@db};port=#{@port}"
@conn=DBI.connect(dbi,user)
WOK_SQL
end
end
end
__END__
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