summaryrefslogtreecommitdiff
path: root/build.sh
blob: 31f3deca51158ca80118b3faa53b488ee02bc717 (about) (plain)
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
292
293
294
295
296
#!/bin/sh

# Copyright (C) 2021 Wojtek Kosior
# Redistribution terms are gathered in the `copyright' file.

. ./shell_utils.sh

handle_export_line() {
    if [ "x$1" = "xEXPORTS_START" ]; then
	if [ "$STATE" = "before_block" ]; then
	    STATE="in_block"
	fi
    elif [ "x$1" = "xEXPORT" ]; then
	if [ "$STATE" != "in_block" ]; then
	    return
	fi

	EXPORTCODE="${EXPORTCODE}window.killtheweb.$2 = $2;$ENDL"

	PREVIOUS_FILE="$(map_get EXPORTS $2)"
	if [ "x$PREVIOUS_FILE" != "x" ]; then
	    errcho "export $2 present in both $PREVIOUS_FILE and $FILE"
	    return 1
	fi

	map_set_instr EXPORTS $2 "$FILE"

    elif [ "x$1" = "xEXPORTS_END" ]; then
	if [ "$STATE" = "in_block" ]; then
	    STATE="after_block"
	fi
    fi
}

translate_exports() {
    STATE="before_block"
    EXPORTCODE=''

    while read EXPORT_LINE; do
	handle_export_line $EXPORT_LINE || return 1
    done

    map_set_instr EXPORTCODES $FILEKEY "$EXPORTCODE"
}

add_exports() {
    FILE="$1"
    FILEKEY="$(sanitize "$FILE")"

    eval "$(grep -o 'EXPORT.\+' "$1" | translate_exports || exit 1)"
}

handle_import_line() {
    if [ "x$1" = "xIMPORTS_START" ]; then
	if [ "$STATE" = "before_block" ]; then
	    STATE="in_block"
	fi
    elif [ "x$1" = "xIMPORT" ]; then
	if [ "$STATE" != "in_block" ]; then
	    return
	fi

	IMPORTCODE="${IMPORTCODE}const $2 = window.killtheweb.$2;$ENDL"

	IMPORTS="$IMPORTS $2"

    elif [ "x$1" = "xIMPORTS_END" ]; then
	if [ "$STATE" = "in_block" ]; then
	    STATE="after_block"
	fi
    fi
}

translate_imports() {
    STATE="before_block"
    IMPORTCODE=''
    IMPORTS=''

    while read IMPORT_LINE; do
	handle_import_line $IMPORT_LINE || return 1
    done

    map_set_instr IMPORTCODES $FILEKEY "$IMPORTCODE"
    map_set_instr IMPORTS $FILEKEY "$IMPORTS"
}

add_imports() {
    FILE="$1"
    FILEKEY="$(sanitize "$FILE")"

    eval "$(grep -o 'IMPORT.\+' "$1" | translate_imports || exit 1)"
}

compute_scripts_list_rec() {
    local FILE="$1"
    local FILEKEY=$(sanitize "$1")

    local FILESTATE="$(map_get FILESTATES $FILEKEY)"
    if [ "xprocessed" = "x$FILESTATE" ]; then
	return
    fi
    if [ "xprocessing" = "x$FILESTATE" ]; then
	errcho "import loop on $FILE"
	return 1
    fi

    USED="$USED $FILEKEY"

    map_set FILESTATES $FILEKEY "processing"

    local IMPORT
    for IMPORT in $(map_get IMPORTS $FILEKEY); do
	NEXT_FILE="$(map_get EXPORTS $IMPORT)"
	if [ "x" = "x$NEXT_FILE" ]; then
	    errcho "nothing exports $IMPORT, required by $FILE"
	    return 1
	fi
	if ! compute_scripts_list_rec "$NEXT_FILE"; then
	    errcho "when satisfying $IMPORT for $FILE"
	    return 1
	fi
    done

    [ "x$FILE" = "xexports_init.js" ] || echo $FILE # exports_init.js is hardcoded to load first; the entire export system depends on it
    map_set FILESTATES $FILEKEY "processed"
}

compute_scripts_list() {
    USED=''
    echo COMPUTED_SCRIPTS=\"exports_init.js
    compute_scripts_list_rec "$1"
    echo \"

    for FILEKEY in $USED; do
	map_set_instr USED $FILEKEY yes
    done
}

as_json_list() {
    while true; do
	if [ "x" = "x$2" ]; then
	    echo -n '\\n'"\t\t\"$1\""'\\n\t'
	    return
	fi
	echo -n '\\n'"\t\t\"$1\","
	shift
    done
}

as_html_list() {
    while [ "x" != "x$1" ]; do
	echo -n '\\n'"    <script src=\"/$1\"></script>"
	shift
    done
}

set_browser() {
    if [ "x$1" = "xmozilla" -o "x$1" = "xchromium" ]; then
	BROWSER="$1"
    else
	errcho "usage:  $0 mozilla|chromium"
	exit 1
    fi
}

main() {
    set_browser "$1"

    # placate importers of these, as they are exported by the yet-to-be-created exports_init.js
    EXPORTS__browser=exports_init.js
    EXPORTS__is_chrome=exports_init.js
    EXPORTS__is_mozilla=exports_init.js

    SCRIPTDIRS='background html common content'

    SCRIPTS=$(find $SCRIPTDIRS -name '[^.#]*.js')

    for SCRIPT in $SCRIPTS; do
	add_exports $SCRIPT
	add_imports $SCRIPT
    done

    eval "$(compute_scripts_list background/main.js || exit 1)"
    BGSCRIPTS="$(as_json_list $COMPUTED_SCRIPTS)"
    eval "$(compute_scripts_list content/main.js || exit 1)"
    CONTENTSCRIPTS="$(as_json_list $COMPUTED_SCRIPTS)"
    eval "$(compute_scripts_list html/display-panel.js || exit 1)"
    POPUPSCRIPTS="$(as_html_list $COMPUTED_SCRIPTS)"
    eval "$(compute_scripts_list html/options_main.js || exit 1)"
    OPTIONSSCRIPTS="$(as_html_list $COMPUTED_SCRIPTS)"

    BUILDDIR=build_$BROWSER
    rm -rf $BUILDDIR
    mkdir $BUILDDIR
    for DIR in $(find $SCRIPTDIRS -type d); do
	mkdir -p $BUILDDIR/$DIR
    done

    CHROMIUM_KEY=''
    GECKO_APPLICATIONS=''

    if [ "$BROWSER" = "chromium" ]; then
	CHROMIUM_KEY="\n\
\n\
    // WARNING!!!\n\
    // EACH USER SHOULD REPLACE \"key\" WITH A UNIQUE VALUE!!!\n\
    // OTHERWISE, SECURITY CAN BE TRIVIALLY COMPROMISED!\n\
    //\n\
    // A unique key can be generated with:\n\
    // $ ssh-keygen -f /path/to/new/key.pem -t rsa -b 1024\n\
    //\n\
    // Only relevant to users of chrome-based browsers.\n\
    // Users of Firefox forks are safe.\n\
\n\
    \"key\": \"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\","
    else
	GECKO_APPLICATIONS="\n\
    \"applications\": {\n\
	\"gecko\": {\n\
	    \"id\": \"{6fe13369-88e9-440f-b837-5012fb3bedec}\",\n\
	    \"strict_min_version\": \"60.0\"\n\
	}\n\
    },"
    fi

    sed "\
s^_GECKO_APPLICATIONS_^$GECKO_APPLICATIONS^
s^_CHROMIUM_KEY_^$CHROMIUM_KEY^
s^_BGSCRIPTS_^$BGSCRIPTS^
s^_CONTENTSCRIPTS_^$CONTENTSCRIPTS^" \
	< manifest.json > $BUILDDIR/manifest.json

    ./process_html_file.sh html/display-panel.html |
	sed "s^_POPUPSCRIPTS_^$POPUPSCRIPTS^" \
	    > $BUILDDIR/html/display-panel.html

    ./process_html_file.sh html/options.html |
	sed "s^_OPTIONSSCRIPTS_^$OPTIONSSCRIPTS^" \
	    > $BUILDDIR/html/options.html

    for FILE in $SCRIPTS; do
	FILEKEY=$(sanitize "$FILE")
	if [ "xyes" != "x$(map_get USED $FILEKEY)" ]; then
	    errcho "WARNING! $FILE not used"
	else
	    (echo "\
\"use strict\";

({fun: (function() {
$(map_get IMPORTCODES $FILEKEY)

";

# A hack to insert the contents of default_settings.json at the appropriate location in background/main.js
if [ "$FILE" = "background/main.js" ]; then
    # Uses an internal sed expression to escape and indent the JSON file for use in the external sed expression
    sed 's/^        `DEFAULT SETTINGS`$/'"$(sed -E 's/([\\\&\/])/\\\1/g; s/^/        /; s/$/\\/' < default_settings.json) "/g < "$FILE"
else
    cat $FILE
fi

echo "

$(map_get EXPORTCODES $FILEKEY)
})}).fun();") > $BUILDDIR/$FILE
	fi
    done

    if [ "$BROWSER" = "chromium" ]; then
	cat > $BUILDDIR/exports_init.js <<EOF
window.killtheweb={is_chrome: true, browser: window.chrome};
EOF
    else
	cat > $BUILDDIR/exports_init.js <<EOF
/* Polyfill for IceCat 60. */
String.prototype.matchAll = String.prototype.matchAll || function(regex) {
    if (regex.flags.search("g") === -1)
        throw new TypeError("String.prototype.matchAll called with a non-global RegExp argument");

    for (const matches = [];;) {
        if (matches[matches.push(regex.exec(this)) - 1] === null)
	    return matches.splice(0, matches.length - 1);
    }
}

window.killtheweb={is_mozilla: true, browser: this.browser};
EOF
    fi

    cp -r copyright licenses/ $BUILDDIR
    cp html/*.css $BUILDDIR/html
    mkdir $BUILDDIR/icons
    cp icons/*.png $BUILDDIR/icons
}

main "$@"