summaryrefslogtreecommitdiff
path: root/bin/pod.sh
blob: 5f0d282465bb4d5383cb2dff0d1a7f3f2d146ad7 (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
#!/usr/bin/env bash

PATH=$PATH:$(nix-build '<nixpkgs>' -A wget)/bin
PATH=$PATH:$(nix-build '<nixpkgs>' -A libxslt.bin)/bin

# Copyright (C) 2010-2015 Christophe Delord
# http://www.cdsoft.fr/pod
#
# pod.sh 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.
#
# pod.sh 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 pod.sh.  If not, see <http://www.gnu.org/licenses/>.

# Original idea: BashPodder (http://lincgeek.org/bashpodder/)

# audio and video directories
PODCASTS=~/Podcasts
AUDIO=Audio
VIDEO=Video

# Default tempo factor for mp3 files
TEMPO=1 # listen podcasts 1.5 x faster

# Database containing the already downloaded URLs
DB=~/.poddb

# Temporary files
PARTIAL=/tmp/.pod

# Get on screen notifications
NOTIFICATION=true

# The configuration file defines the URL of the RSS feeds.
CONF=$PARTIAL/pod.conf
mkdir -p $(dirname $CONF)
cat <<EOF >$CONF
# podcast name      tempo[^1]   URL

SkepticsGuide                    http://www.theskepticsguide.org/feed

#[1]: if tempo is not defined, $TEMPO is used as the default tempo
#01netTV                         http://feeds.feedburner.com/LaChaineTechno?format=xml
#12_Min                          http://feeds.feedburner.com/12minutesdemp3
#56Kast                          http://www.liberation.fr/podcast/40/
#AppLoad                         http://feeds2.feedburner.com/appload
##Apprendre_l_anglais             http://www.anglaispod.com/apprendre.xml
##Atelier_Numérique               http://podcast.bfmradio.fr/channel9/BFMchannel9.xml
#Bazingcast                      http://feeds.feedburner.com/bazingcast_mp3
#Ciel_et_Espace                  http://www.cieletespaceradio.fr/podcast.php
#CONTINENT_SCIENCES              http://radiofrance-podcast.net/podcast09/rss_16256.xml
##Deconnecast                     http://www.deconnecast.fr/feed/
#De_quoi_je_me_mail              http://podcast.rmc.fr/channel35/RMCInfochannel35.xml
#Divergence_Numérique            http://podcasts.divergence-fm.org/divergencenumerique.xml
##En_Flux_Libre                   http://enfluxlibre.tuxfamily.org/?feed=rss2
#En_quête_de_science             http://www.europe1.fr/podcasts/en-quete-de-science.xml
#FSPod                           http://rss.futura-sciences.com/fs/podcast
#Indesciences                    http://feeds.soundcloud.com/users/soundcloud:users:59221717/sounds.rss
#Info_sciences                   http://radiofrance-podcast.net/podcast09/rss_11074.xml
#La_folle_histoire_de_l_Univers  http://www.florenceporcel.com/podcast/lfhdu.xml
#La_Grotte_Du_Barbu              http://feeds.feedburner.com/lagrottedubarbu/bPUL
#LA_MARCHE_DES_SCIENCES          http://radiofrance-podcast.net/podcast09/rss_11193.xml
#L_apéro_du_Captain              http://feeds.feedburner.com/LaperoDuCaptain
##La_revue_du_net                 http://www.europe1.fr/podcasts/c-est-pas-tres-net.xml
#La_science_en_question          http://radiofrance-podcast.net/podcast09/rss_10336.xml
#La_tête_au_carré                http://radiofrance-podcast.net/podcast09/rss_10212
##La_voix_du_libre-capsule        http://feeds.feedburner.com/capsulemp3vdl?format=xml
##La_voix_du_libre-entrevue       http://feeds.feedburner.com/entrevuesoggvdl?format=xml
##La_voix_du_libre                http://feeds.feedburner.com/podcastoggvdl?format=xml
##Le_7-9                          http://radiofrance-podcast.net/podcast09/rss_11992.xml
##Le_bruit_du_net                 http://radiofrance-podcast.net/podcast09/rss_11064.xml
#L_écho_des_Gnous                http://www.chtinux.org/podcast/feed.xml
#L_éclectique_show               http://feeds.feedburner.com/eclectiqueshow
#Le_rendez-vous_Tech             http://feeds2.feedburner.com/lerendezvoustech
##Libre_FM                        http://s.libre.fm/podcast.rss
##L_innovation_du_jour            http://cdn-new-europe1.ladmedia.fr/var/exports/podcasts/sound/Innovation.xml
#NipDev                          http://feeds.feedburner.com/NipDev
#NipLife                         http://feeds.feedburner.com/NiptechPodcastNiplife
#NipSource                       http://feeds.feedburner.com/NipcastNipsource
#NipTech                         http://feeds.feedburner.com/niptechpodcast/
#Nouveau_monde                   http://radiofrance-podcast.net/podcast09/rss_18998.xml
#nouvo                           http://nouvo.ch/feeds/videos
##Oh_La_Radio                     http://feeds.feedburner.com/OhLaRadio
#Parole_de_Tux                   http://www.captainposix.net/RSSPodcast/feeditunes.xml
#Podcast_Science                 http://feeds.feedburner.com/PodcastScience
##Random_Radio                    http://fz-corp.net/podcast/podcast.xml
##Revue_de_presque                http://www.europe1.fr/podcasts/revue-de-presque.xml
#Sang_libre               1      http://libre.tuxakadjseb.net/?feed=rss2
#SCIENCE_PUBLIQUE                http://radiofrance-podcast.net/podcast09/rss_10192.xml
##Symbiose                        http://www.dogmazic.net/radio/groupePod.php?f=mp3&usr=&groupe=Symbiose
##Un_jour_sur_la_toile            http://radiofrance-podcast.net/podcast09/rss_10274.xml
#Vie_artificielle                http://feeds.feedburner.com/vieartificielle
EOF

PARSE=$PARTIAL/parse_enclosure.xsl
mkdir -p $(dirname $PARSE)
cat <<EOF >$PARSE
<?xml version="1.0"?>
<stylesheet version="1.0"
    xmlns="http://www.w3.org/1999/XSL/Transform">
    <output method="text"/>
    <template match="/">
        <apply-templates select="/rss/channel/item/enclosure"/>
    </template>
    <template match="enclosure">
        <value-of select="@url"/><text>&#10;</text>
    </template>
</stylesheet>
EOF

mkdir -p $AUDIO
mkdir -p $VIDEO

echo "*** $(basename $0) ***"

LOCKFILE=$PARTIAL/lock
if [ -e $LOCKFILE ]
then
    echo "$(basename $0) is already running..."
    exit 1
fi
trap "rm -f $LOCKFILE; rm -rf $PARTIAL; exit" EXIT INT TERM
echo $$ > $LOCKFILE

mkdir -p $PODCASTS/$AUDIO
mkdir -p $PODCASTS/$VIDEO
cd $PODCASTS

mkdir -p $PARTIAL

# The database must exist. Create it empty otherwise.
touch $DB

# Wait for an internet connection
while ! wget -q --tries=10 --timeout=20 --spider http://google.com
do
    sleep 60
done

# number of episodes downloaded
n=0

# Parse each line of the configuration file
cat $CONF | while read nom tempo podcast
do
    case "$podcast" in
        "")     # 2 arguments => the tempo is not defined, let take the default tempo ($TEMPO)
                podcast=$tempo; tempo=$TEMPO
                ;;
        *)      # 3 arguments => the tempo is defined for this podcast
                ;;
    esac
    case "$nom" in
        "")     # empty line => ignored
                ;;
        \#*)    # comment line => ignored
                ;;
        *)  # line with a podcast RSS feed => parse the RSS feed and download new episodes
            echo "* parse $nom ($podcast)"
            # get all episodes
            file=$(xsltproc $PARSE $podcast 2> /dev/null || wget -T 60 -t 1 -q $podcast -O - | tr '\r' '\n' | tr \' \" | sed -n "s/></>\n</gp" | sed -n 's/.*url="\([^"]*\)".*/\1/p')
            for url in $file
            do
                case "$url" in
                    (*.jpg|*.jpeg|*.png|*.JPG|*.JPEG|*.gif) # ignore images
                                                            ;;
                    (*) # not an image, it may be something to watch or listen to
                        if ! grep -q "$url" $DB
                        then
                            # not in the database => new episode to download
                            echo "*     $(basename $url)"
                            #echo "url = $url"
                            OUT=$nom-$(echo "$url" | awk -F'/' {'print $NF'} | awk -F'=' {'print $NF'} | awk -F'?' {'print $1'})
                            if wget -t 10 -c -q -O $PARTIAL/$OUT "$url"
                            then
                                NEW=$OUT
                                DATE=$(stat -c %y $PARTIAL/$OUT | sed 's/^..\(..\)-\(..\)-\(..\) \(..\):\(..\).*/\1\2\3\4\5/')
                                # Normalize the extension
                                NEW=${NEW/.MP3/.mp3}
                                NEW=${NEW/.MP4/.mp4}
                                # Speedup with the current tempo
                                case $NEW in
                                    (*.mp4) # video are not accelerated
                                            mv $PARTIAL/$OUT $PARTIAL/$DATE-$NEW
                                            ;;
                                    (*.mp3) # audio is accelerated according to the selected tempo
                                            case $tempo in
                                                (1) # tempo = 1 => no acceleration
                                                    mv $PARTIAL/$OUT $PARTIAL/$DATE-$NEW
                                                    ;;
                                                (*) # tempo != 1 => acceleration
                                                    if (ffmpeg -i "$PARTIAL/$OUT" -filter:a "atempo=$tempo" -c:a libmp3lame -q:a 4 "$PARTIAL/$DATE-$NEW" > /dev/null 2> /dev/null)
                                                    then
                                                        touch -r "$PARTIAL/$OUT" "$PARTIAL/$DATE-$NEW"
                                                    else
                                                        rm -f "$PARTIAL/$DATE-$NEW"
                                                    fi
                                                    rm "$PARTIAL/$OUT"
                                                    ;;
                                            esac
                                            ;;
                                    (*)     # other file types are not accelerated
                                            mv $PARTIAL/$OUT $PARTIAL/$DATE-$NEW
                                            ;;
                                esac
                                if [ -e $PARTIAL/$DATE-$NEW ]
                                then
                                    # copy audio and video episodes in $AUDIO and $VIDEO
                                    case $NEW in
                                        (*.mp3|*.ogg)   mv $PARTIAL/$DATE-$NEW $PODCASTS/$AUDIO/$DATE-$NEW ;;
                                        (*)             mv $PARTIAL/$DATE-$NEW $PODCASTS/$VIDEO/$DATE-$NEW ;;
                                    esac
                                    $NOTIFICATION && notify-send -c transfer.complete "$nom: new podcast" "$NEW"
                                    echo $url >> $DB
                                    n=$((n+1))
                                fi
                            fi
                        fi
                        ;;
                esac
            done
            ;;
    esac
done

# done => remove configuration files
rm -f $CONF $PARSE

if [ $n -gt 0 ]
then
    [ $n -gt 1 ] && s="s" || s=""
    $NOTIFICATION && notify-send -c transfer "Podcasts" "$n new episode$s downloaded"
fi

# remove lock and partially downloaded files, sleep for 2 hours and try again
rm -f $LOCKFILE
rm -rf $PARTIAL
echo "*** done ($(date)) ***"
# for some unexplained (yet) reasons, the main loop may be exited after some
# episodes are downloaded. As a workaround the script is restarted immediately
# when $n > 0 in case some new episodes were not downloaded.
# When every is done; we wait for 2 hours before restarting.
[ $n -gt 0 ] || sleep $((2*3600))
exec $0 $*