# encoding: utf-8
=begin
* Name: SiSU
* Description: a framework for document structuring, publishing and search
* Author: Ralph Amissah
* Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010, 2011, 2012, 2013 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 .
If you have Internet connection, the latest version of the GPL should be
available at these locations:
* SiSU uses:
* Standard SiSU markup syntax,
* Standard SiSU meta-markup syntax, and the
* Standard SiSU object citation numbering and system
* Hompages:
* Download:
* Git
* Ralph Amissah
** Description: generates naive cgi search form for search of sisu database (pgsql)
=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 SearchPgSQL < CGI_Common
def initialize(opt,webserv)
@opt,@webserv=opt,webserv
@cX=SiSU_Screen::Ansi.new(opt.cmd).cX
@env=SiSU_Env::InfoEnv.new('',opt)
@sys=SiSU_Env::SystemCall.new
@db=SiSU_Env::InfoDb.new
get_init=SiSU_Env::GetInit.new
@rc=get_init.sisu_yaml.rc
@name_of={}
@name_of[:output_dir_structure]=if defined? @rc['output_dir_structure_by'] \
and defined? @rc['output_dir_structure_by'] =~/(language|filetype|filename)/
@rc['output_dir_structure_by']
else 'language'
end
if defined? @rc['search'] \
and defined? @rc['search']['sisu'] \
and defined? @rc['search']['sisu']['action'] \
and @rc['search']['sisu']['action'] =~/https?:\/\/\S+?\.cgi/ \
and defined? @rc['search']['sisu']['db'] \
and @rc['search']['sisu']['db'] =~/\S+/
@name_of[:db]=@rc['search']['sisu']['db']
else
@name_of[:db]=@env.path.stub_pwd #'sisu' #breaks if not present
false
end
@name_of[:host_url_cgi]="#{@env.url.webserv_base_cgi(@opt)}/cgi-bin"
@name_of[:host_url_docs]=@env.url.webserv_files_from_db(@opt)
@name_of[:cgi_script]=@env.url.cgi_sample_search_form_name(@opt)
@name_of[:user]=@db.psql.user(@opt)
@cgi_file_name="#{Db[:name_prefix_db]}by_#{opt.dir_structure_by.to_s}_pgsql.cgi"
@cgi_link_name=@name_of[:cgi_script] #sisu_pgsql.cgi,
@image_src="#{@env.url.webserv_base_cgi(@opt)}/_sisu/image_sys"
@common=SiSU_CGI_SQL::CGI_Common.new(@webserv,@opt,@image_src,@env)
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.is_a?(Array)
available_db.flatten.each do |x|
serve << x.gsub(/#{Db[:name_prefix]}(\S+)/,'\1')
end
else STDERR.puts "WARNING: no postgresql database available, (have you created one?)"
end
serve=serve.sort
f1,f2,f3='','',''
serve.each do |x|
f1 << %{ \n} unless x =~/apache|sisu\/image/ #check
end
end
f2 << %q{ selected_db=%{}} + "\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
puts <<-WOK
generated sample search form: #{@cX.green}#{@cgi_file_name}#{@cX.off}
default database name: #{@cX.green}#{Db[:name_prefix]}#{@name_of[:db]}#{@cX.off} (#{@name_of[:db]})
db user: #{@cX.green}#{@name_of[:user]}#{@cX.off}
to modify use: #{@cX.brown}sisu --db-pg --db-user='#{@name_of[:user]}'#{@cX.off}
cgi & db host on: #{@cX.blue}#{@name_of[:host_url_cgi]}#{@cX.off}
to modify use: #{@cX.brown}sisu --db-pg --webserv-search='#{@name_of[:host_url_cgi]}'#{@cX.off}
sisu output on: #{@cX.blue}#{@name_of[:host_url_docs]}#{@cX.off}
to modify use: #{@cX.brown}sisu --db-pg --webserv-output='#{@name_of[:host_url_docs]}'#{@cX.off}
cgi search form link name: #{@cX.green}#{@name_of[:cgi_script]}#{@cX.off}
to modify use: #{@cX.brown}sisu --db-pg --cgi-search-form-name='#{@name_of[:cgi_script]}'#{@cX.off}
#{@cX.fuschia}(settings priority: command line; sisurc.yml; else defaults)#{@cX.off}
#{@cX.fuschia}BASED ON ALREADY EXISTING databases#{@cX.off} (default database name: #{@db.psql.db})
NOTE it is first necessary to createdb,
use sisu to create the tables & populate the postgresql db
the database to be used for this directory (#{@db.psql.db})
will have to be created manually if it does not exist:
using postgresql tools directly (the following may work):
(i) if you are not yet a postgresql user,
#{@cX.brown}sudo su postgres
createuser -d -a #{@env.user}
exit#{@cX.off}
(ii) create the database:
#{@cX.brown}createdb #{@db.psql.db}#{@cX.off}
[for a list of existing databases try 'psql --list']"
now you can use sisu to create the database tables and populate the database with documents
sisu --pg --dropall # removes existing postgresql db & tables
sisu --pg --createall -v # creates postgresql db & tables
sisu --pg --update -v *.sst *.ssm # populate the db
sisu --sample-search-form --pg # creates the postgresql search form
# this should be done after creating the db
# to be searched
sisu --webrick & # starts ruby webrick web server
# if necessary make the directory '/usr/lib/cgi-bin'
# here we copy the postgresql search form to cgi-bin
# (copy #{@cgi_file_name} to your cgi directory)
# set file permissions to 755, &
# make symbolic link to #{@cgi_link_name}
WOK
a=case @webserv
when /pwd/; ''
else <<-WOK
sudo cp -vi #{Dir.pwd}/#{@cgi_file_name} /usr/lib/cgi-bin/.; \\
cd /usr/lib/cgi-bin && \\
sudo chmod -v 755 #{@cgi_file_name}; \\
sudo rm -vi #{@cgi_link_name}; \\
sudo ln -s #{@cgi_file_name} #{@cgi_link_name}; \\
cd -
WOK
end
SiSU_Screen::Ansi.new(@opt.cmd,a).warn
a=<<-WOK
#{@env.webserv_base_cgi(@opt)}/cgi-bin/#{@cgi_link_name}
WOK
SiSU_Screen::Ansi.new(@opt.cmd,a).print_blue
a="\n\t(to create and populate postgresql database see 'man sisu' and in particular the --pg option)\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\tusing postgresql tools directly: 'createdb #{@db.psql.db}' for a list of existing databases try 'psql --list']"
SiSU_Screen::Ansi.new(@opt.cmd,a).txt_grey
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'
@stub_default='#{@name_of[:db]}'
@image_src='#{@image_src}'
@hosturl_cgi='#{@name_of[:host_url_cgi]}'
@hosturl_files='#{@name_of[:host_url_docs]}'
@output_dir_structure_by='#{@name_of[:output_dir_structure]}'
@port='#{@db.psql.port}'
@db_name_prefix='#{Db[:name_prefix]}'
@user='#{@name_of[:user]}' # check user name for access to pg database: e.g. www-data or '#{@env.user}'
@base='#{@name_of[:host_url_cgi]}/#{@name_of[:cgi_script]}'
WOK_SQL
end
def search_statement
<<-'WOK_SQL'
class DBI_SearchString
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+/ then unescaped_search=CGI.unescape(@t)
elsif @q =~/\S+/ then unescaped_search=CGI.unescape(@q)
end
search_construct=[]
unescaped_search=if @c
unescaped_search.gsub(/\s*(AND|OR)\s*/,"' \) \\1 #{@l}~\( '").
gsub(/(.+)/,"#{@l}~\( '\\1' \)")
else
unescaped_search.gsub(/\s*(AND|OR)\s*/,"' \) \\1 #{@l}~*\( '").
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=search[:text].flatten.join(' AND ')
@search_text=@search_text.gsub(/(doc_objects\.clean~[*]?\(\s*'[^']+'\s*\)\s+(?:(?:AND|OR)\s+doc_objects\.clean~[*]?\(\s*'[^']+'\s*\))+)/,'(\1)')
@search_endnotes=search[:endnotes].flatten.join(' AND ')
@search_endnotes=@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
%{#{sql_select_body}}
end
def sql_select_endnotes_format
%{#{sql_select_endnotes}}
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'
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__