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+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997 - 2012, 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_relative 'sysenv' # sysenv.rb
+ require_relative '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,@image_src,@env)
+ @db=SiSU_Env::Info_db.new
+ @cgi_file_name="#{Db[:name_prefix_db]}by_#{opt.dir_structure_by}_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 << @common.dir_structure << @common.main3
+ 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 #{@cgi_file_name} 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.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.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.language_document_char, 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.language_document_char, 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, metadata_and_text.language_document_char, 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.language_document_char, 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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