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+=begin
+ * Name: SiSU information Structuring Universe - Structured information, Serialized Units
+ * Author: Ralph Amissah
+ * http://www.jus.uio.no/sisu
+ * http://www.jus.uio.no/sisu/SiSU/download.html
+
+ * Description: generates naive cgi search form for search of sisu database (pgsql sqlite)
+
+ * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Ralph Amissah
+
+ * License: GPL 2 or later
+
+ Summary of GPL 2
+
+ 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 2 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, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+ If you have Internet connection, the latest version of the GPL should be
+ available at these locations:
+ http://www.fsf.org/licenses/gpl.html
+ http://www.gnu.org/copyleft/gpl.html
+ http://www.jus.uio.no/sisu/gpl2.fsf
+
+ SiSU was first released to the public on January 4th 2005
+
+ SiSU uses:
+ * Standard SiSU markup syntax,
+ * Standard SiSU meta-markup syntax, and the
+ * Standard SiSU object citation numbering and system
+
+ © Ralph Amissah 1997, current 2007.
+ All Rights Reserved.
+
+ * Ralph Amissah mailto:ralph@amissah.com
+ Ralph Amissah mailto:amissah@gmail.com
+
+=end
+module SiSU_CGI_pgsql #% database building documents
+ require "#{SiSU_lib}/sysenv"
+ require "#{SiSU_lib}/cgi_sql_common"
+ 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"
+ @common=SiSU_CGI_sql::SiSU_CGI_common.new(@webserv,@opt.cmd,@image_src,@env)
+ @db=SiSU_Env::Info_db.new
+ #p @db.port_psql
+ end
+ def pgsql
+ serve=[]
+ if @sys.psql
+ available_db_table=`psql --list` # system call requires psql
+ available_db=available_db_table.scan(/(SiSU_\S+)/) if not available_db_table.nil?
+ if available_db and available_db.class == Array
+ available_db.flatten.each do |x|
+ serve << x.gsub(/SiSU_(\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="SiSU_#{x}">#{x}</option>\n} unless x =~/apache|sisu\/image/ #check
+ end
+ f2 << %{ selected_db=case cgi['db']\n}
+ serve.each do |x|
+ f2 << %{ when /SiSU_#{x}/; '<option value="SiSU_#{x}">#{x}</option>'\n} unless x =~/apache|sisu\/image/ #check
+ end
+ end
+ f2 << " end\n"
+ if FileTest.writable?('.')
+ output=File.open('sisu_pgsql.cgi','w')
+ output << header0 << header1 << header_desc << header2 << f1 << buttons1 << buttons_note << 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)
+ }
+ tell=SiSU_Screen::Ansi.new(@opt.cmd,a)
+ tell.print_grey
+ c=case @webserv
+ when /pwd/; ''
+ else "if necessary make the directory /usr/lib/cgi-bin :
+ sudo cp -vi #{Dir.pwd}/sisu_pgsql.cgi /usr/lib/cgi-bin/.
+ sudo chmod -v 755 /usr/lib/cgi-bin/sisu_pgsql.cgi
+ (copy sisu_pgsql.cgi to your cgi directory) and set file permissions to 755"
+ end
+ a=%{#{c}
+ #{@env.webserv_base_cgi}/cgi-bin/sisu_pgsql.cgi
+ }
+ tell=SiSU_Screen::Ansi.new(@opt.cmd,a)
+ tell.warn
+ a="postgresql db used for present directory: #{@db.db_psql}"
+ 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.db_psql}) 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.db_psql}'\n\tfor a list of existing databases try 'psql --list']"
+ tell=SiSU_Screen::Ansi.new(@opt.cmd,a,b)
+ tell.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"
+ @hosturl_db="#{@env.url.webserv_base_cgi}"
+ @hosturl_files="#{@env.url.webserv_files_from_db}"
+ @port="#{@db.port_psql}"
+ user='' # '#{@env.user}'
+ WOK_SQL
+ end
+ def search_statement
+ <<-'WOK_SQL'
+ class Dbi_search_string
+ def initialize(l,t,q)
+ @l,@t,@q=l,t,q
+ 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=[]
+ unescaped_search.gsub!(/\s*(AND|OR)\s*/,"' \) \\1 #@l~\( '")
+ unescaped_search.gsub!(/(.+)/,"#@l~\( '\\1' \)")
+ 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 buttons_note
+ ' <font size="2" color="#666666">case sensitive</font>'
+ end
+ def search_query1
+ <<-'WOK_SQL'
+ @search_text,@search_endnotes=[],[]
+ #%
+ search[:text].each{|x| @search_text << "#{x} AND " }
+ @search_text=@search_text.to_s.gsub!(/AND\s+$/,'')
+ @search_text.gsub!(/(documents\.clean~\(\s*'[^']+'\s*\)\s+(?:(?:AND|OR)\s+documents\.clean~\(\s*'[^']+'\s*\))+)/,'(\1)')
+ search[:endnotes].each{|x| @search_endnotes << "#{x} AND " }
+ @search_endnotes=@search_endnotes.to_s.gsub!(/AND\s+$/,'')
+ @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.title, metadata.creator, metadata.filename, metadata.suffix, documents.body, documents.seg, documents.ocn, metadata.tid FROM documents, metadata WHERE (#@search_text) AND documents.metadata_tid = metadata.tid ORDER BY metadata.title, documents.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.title, metadata.creator, metadata.filename, endnotes.body, endnotes.nr, endnotes.ocn, endnotes.metadata_tid FROM metadata, endnotes WHERE (#@search_endnotes) AND metadata.tid = endnotes.metadata_tid ORDER BY metadata.title, 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 dbi_connect
+ <<-'WOK_SQL'
+ dbi="dbi:Pg:database=#{@db};port=#{@port}"
+ @conn=DBI.connect(dbi,user)
+ WOK_SQL
+ end
+ end
+end
+__END__