This file is indexed.

/usr/lib/bash/urlcoding.sh is in libbash 0.9.11-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#               Do not run this script directly!
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#############################################################################
# Copyright (c) 2005 Alon Keren												#
#																			#
# This program is free software; you can redistribute it and/or modify it	#
# under the terms of version 3 of the gnu general public license as			#
# published by the Free Software Foundation.								#
#																			#
#############################################################################
#
# $Date: 2009-05-10 20:08:10 +0300 (Sun, 10 May 2009) $
# $Author: hai-zaar $
#
# This library provides functions for conversion between ASCII-text and standard URL's.
# AWK code is based on code by Heiner Steven <heiner.steven@odn.de>.
#

#--------------------------------------------------------------------------------------------------
#EXPORT=urlEncodeStream urlEncodeString urlEncodeFile urlDecodeStream urlDecodeString urlDecodeFile
#REQUIRE=
#--------------------------------------------------------------------------------------------------

###############################################################
##################    LIBRARY CONSTANTS    ####################
###############################################################
__urlcoding_AWK="awk"
__urlcoding_USAGE_ERROR="1"
__urlcoding_SUCCESS="0"


###############################################################
##################    SERVICE  FUNCTIONS    ###################
###############################################################
#
# $retval[2] getParams <Params>
#	Analayze coding parameters from function-arguments.
#
#	Parameters:
#		Params:
#			The arguments with which an exported function was called.
#
#	Return value: (Source EncodeEOLflag)
#		An array comprised of the following:
#			Index0 - The data source parameter
#			Index1 - the '-l' flag, if given
#
#	Exit status:
#		__urlcoding_SUCCESS		-	the run was successful
#		__urlcoding_USAGE_ERROR	-	bad parameters were given
__urlcoding_getParams ()
{
	local EncodeEOLflag=
	local Source=""
	[[ ! $1 ]] && return $__urlcoding_USAGE_ERROR
	
	if [[ "$1" == "-l" ]]; then
		EncodeEOLflag="-l"
		[[ ! $2 ]] && return $__urlcoding_USAGE_ERROR
		Source="$2"
	else
		Source="$1"
	fi
	retval=("$Source" "$EncodeEOLflag")
	return $__urlcoding_SUCCESS
}

##############################################################
###################    MAIN  FUNCTIONS    ####################
##############################################################
#
# urlEncodeString [-l] <STRING>
#
# 	Encode URL from a given string.
#
#	Parameters:
#		-l:
#			Encode line-feed chatacters ('\n') as well
#
#		STRING:
#			The URL to encode
#
#	Return value:
#		None.
#
#	Exit status:
#		See the 'exit status' section of urlEncodeStream
urlEncodeString ()
{
	__urlcoding_getParams "$@" || return $__urlcoding_USAGE_ERROR
	echo "${retval[0]}" | urlEncodeStream "${retval[1]}"
	return $?
}

#
# urlEncodeFile [-l] <FILENAME>
#
# 	Encode text from a file.
#
#	Parameters:
#		-l:
#			encode LF chatacters ('\n') as well
#
#		FILENAME:
#			the path of the file which contains the text to encode
#		
#	Return value:
#		None.
#
#	Exit status:
#		See the 'exit status' section of urlEncodeStream
#
urlEncodeFile ()
{
	__urlcoding_getParams "$@" || return $__urlcoding_USAGE_ERROR
	urlEncodeStream "${retval[1]}" < "${retval[0]}"
	return $?
}

#
# urlDecodeString <STRING>
#
# 	Decode encoded URL from a string.
#
#	Parameters:
#		STRING:
#			URL to decode
#	
#	Return value:
#		None.
#
#	Exit status:
#		See the exit status of urlDecodeStream
#
urlDecodeString ()
{
	[[ "$1" ]] || return $__urlcoding_USAGE_ERROR
	echo "$1" | urlDecodeStream
	return $?
}

#
# urlDecodeFile <FILENAME>
#
# 	Decode encoded text from a file.
#
#	Parameters:
#		FILENAME:
#			the file which contains the encoded text to decode
#
#	Return value:
#		None.
#
#	Exit status:
#		See the exit status of urlDecodeStream
#
urlDecodeFile ()
{
	[[ "$1" ]] || return $__urlcoding_USAGE_ERROR
	urlDecodeStream < "$1"
	return $?
}

#
# urlEncodeStream [-l]
#
#	Encode URL from input stream.
#
#	Parameters:
#		-l:
#			Encode LF chatacters ('\n') as well
#
#	Return value:
#		None.
#
#	Exit status:
#		The exit status of the command $__urlcoding_AWK
urlEncodeStream ()
{
	local EncodeEOL=
	[[ "$1" == "-l" ]] && EncodeEOL=yes
	$__urlcoding_AWK '
	    BEGIN {
			# We assume an awk implementation that is just plain dumb.
			# We will convert an character to its ASCII value with the
			# table ord[], and produce two-digit hexadecimal output
			# without the printf("%02X") feature.
			EOL = "%0A"		# "end of line" string (encoded)
			split ("1 2 3 4 5 6 7 8 9 A B C D E F", hextab, " ")
			hextab [0] = 0
			for ( i=1; i<=255; ++i ) ord [ sprintf ("%c", i) "" ] = i + 0
			if ("'"$EncodeEOL"'" == "yes") EncodeEOL = 1; else EncodeEOL = 0
			previous_line = ""
	    }
	    {
			encoded = ""
			for ( i=1; i<=length ($0); ++i ) {
			    c = substr ($0, i, 1)
			    if ( c ~ /[a-zA-Z0-9.-]/ ) {
					encoded = encoded c		# safe character
			    } else if ( c == " " ) {
					encoded = encoded "+"	# special handling
			    } else {
					# unsafe character, encode it as a two-digit hex-number
					lo = ord [c] % 16
					hi = int (ord [c] / 16);
					encoded = encoded "%" hextab [hi] hextab [lo]
			    }
			}
			# Prints the line encoded in the previous Awk-iteration, so
			# to avoid printing an EOL at the end of the file.
			if ( NR > 1 ) {
				if ( EncodeEOL ) {
				    printf ("%s", previous_line EOL)
				} else {
				    print previous_line
				}
			}
			previous_line = encoded
	    }
		
	    END {
			print previous_line
	    	#if ( EncodeEOL ) print ""
	    }
	'
	return $?
}

#
# urlDecodeStream
#
#	Decode encoded URL from input file.
#
#	Parameters:
#		None.
#
#	Return value:
#		None.
#
#	Exit status:
#		The exit status of the command $__urlcoding_AWK
urlDecodeStream ()
{

	$__urlcoding_AWK '
	    BEGIN {
			hextab ["0"] = 0;	hextab ["8"] = 8;
			hextab ["1"] = 1;	hextab ["9"] = 9;
			hextab ["2"] = 2;	hextab ["A"] = hextab ["a"] = 10
			hextab ["3"] = 3;	hextab ["B"] = hextab ["b"] = 11;
			hextab ["4"] = 4;	hextab ["C"] = hextab ["c"] = 12;
			hextab ["5"] = 5;	hextab ["D"] = hextab ["d"] = 13;
			hextab ["6"] = 6;	hextab ["E"] = hextab ["e"] = 14;
			hextab ["7"] = 7;	hextab ["F"] = hextab ["f"] = 15;
	    }
	    {
	    	decoded = ""
			i   = 1
			len = length ($0)
			while ( i <= len ) {
			    c = substr ($0, i, 1)
			    if ( c == "%" ) {
			    	if ( i+2 <= len ) {
					    c1 = substr ($0, i+1, 1)
					    c2 = substr ($0, i+2, 1)
					    if ( hextab [c1] == "" || hextab [c2] == "" ) {
							print "WARNING: invalid hex encoding: %" c1 c2 | \
							"cat >&2"
					    } else {
					    	code = 0 + hextab [c1] * 16 + hextab [c2] + 0
					    	#print "\ncode=", code
					    	c = sprintf ("%c", code)
						i = i + 2
					    }
					} else {
					    print "WARNING: invalid % encoding: " substr ($0, i, len - i)
					}
			    } else if ( c == "+" ) {	# special handling: "+" means " "
			    	c = " "
			    }
			    decoded = decoded c
			    ++i
			}
		    print decoded
	    }
	'
	return $?
}