summaryrefslogtreecommitdiffstats
path: root/.bin/nwsflux
blob: 3e725b01d900bc2b57adfb77cd2f25b1de418d55 (plain) (blame)
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
#!/usr/bin/env python3
#
# nwsflux

import miniflux
import urllib3
import logging
import os
import re
import shlex
import argparse


def get_local_feed(line: str) -> dict:
    """
    Parse a line and return a constructed dict like miniflux's API.
    """
    feed_url = shlex.split(line)[0]
    title = shlex.split(line)[-1]
    tag = shlex.split(line)[1]
    if tag == title:
        tag = 'all'

    return {
        'feed_url': feed_url,
        'title': title,
        'category': {
            'title': tag
        }
    }


def get_local_feeds(filename: str) -> list:
    """
    Read feeds from a newsboat url file.
    """

    with open(filename, 'r') as f:
        content = f.readlines()

    r = re.compile('^http.*://')
    content = list(filter(r.match, content))

    return [get_local_feed(line) for line in content]


def delete_categories(client: miniflux.Client, local_cats: dict, remote_cats: dict):
    """
    Remove remote categories that are absent in local file.

    . Useless for now, miniflux's API return non-empty categories only!
    """
    for remote in remote_cats:
        if any(local['title'] == remote['title'] for local in local_cats):
            continue
        try:
            logging.info(f'remove category: {remote["title"]}')
            client.delete_category(remote['id'])
        # ignores categories that are empty on remote
        except miniflux.ClientError as e:
            logging.error('can not remove non-empty category:'
                          f'{remote["title"]} {e}')


def create_categories(client: miniflux.Client, local_cats: dict, remote_cats: dict):
    """
    Create categories present in local file and absent on remote.
    """
    for local in local_cats:
        if any(remote['title'] == local['title'] for remote in remote_cats):
            continue
        try:
            logging.info(f'create category: {local["title"]}')
            client.create_category(local['title'])
        # ignores categories that are empty on remote
        except miniflux.ClientError as e:
            logging.error(f'remote category empty: {local["title"]} {e}')


def sync_categories(client: miniflux.Client, local_feeds: dict, remote_feeds: dict) -> dict:
    local_cats = get_uniq_categories(local_feeds)
    remote_cats = get_uniq_categories(remote_feeds)

    delete_categories(client, local_cats, remote_cats)
    create_categories(client, local_cats, remote_cats)
    return client.get_categories()


def get_uniq_categories(buffer: list) -> list:
    return list(map(dict, frozenset(
        frozenset(x['category'].items()) for x in buffer
    )))


def delete_feeds(client: miniflux.Client, local_feeds: dict, remote_feeds: dict):
    """
    Remove remote feeds that are absent in local file.
    """
    for remote in remote_feeds:
        if any(local['feed_url'] == remote['feed_url'] for local in local_feeds):
            continue
        logging.info(f'remove feed: {remote["feed_url"]}')
        client.delete_feed(remote['id'])


def create_feeds(client: miniflux.Client, local_feeds: dict, remote_feeds: dict):
    """
    Create feeds that are present in local file and absent on remote.
    """
    categories = client.get_categories()

    for local in local_feeds:
        if any(remote['feed_url'] == local['feed_url'] for remote in remote_feeds):
            continue
        logging.info(f'create feed: {local}')
        category_id = next((x['id'] for x in categories if x['title'] == local['category']['title']), None)
        try:
            client.create_feed(local['feed_url'], category_id)
        except miniflux.ClientError as e:
            logging.error(e)


def sync_feeds(client: miniflux.Client, local_feeds: dict, remote_feeds: dict) -> dict:
    """
    Synchronize all given feeds.
    """
    delete_feeds(client, local_feeds, remote_feeds)
    create_feeds(client, local_feeds, remote_feeds)
    return client.get_feeds()


def parse():
    """
    Parse command-line arguments.
    """
    parser = argparse.ArgumentParser(description='Synchronize RSS feeds from'
                                     'newsboat to an miniflux instance.')

    parser.add_argument('-c', dest='config', type=str, required=True,
                        help='Newsboat url file')
    parser.add_argument('-k', dest='key', type=str, required=True,
                        help='Miniflux API key')
    parser.add_argument('-u', dest='url', type=str, required=True,
                        help='Miniflux url')
    parser.add_argument('-d', dest='debug', action='store_true',
                        help='Enable debugging output')
    parser.add_argument('-e', dest='export', action='store_true',
                        help='Export Miniflux OPML config to stdout')

    return parser.parse_args()


def main():

    """
    SSL verify.
    """
    os.environ["CURL_CA_BUNDLE"] = ""
    urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

    """
    Arguments.
    """
    args = parse()

    """
    Debugging.
    """
    logging.basicConfig(level=logging.INFO)
    if not args.debug:
        logging.level = logging.NOTSET

    """
    Synchronization.
    """
    client = miniflux.Client(args.url, api_key=args.key)

    local_feeds = get_local_feeds(args.config)
    remote_feeds = client.get_feeds()

    sync_categories(client, local_feeds, remote_feeds)
    sync_feeds(client, local_feeds, remote_feeds)

    """
    Export Miniflux to OPML.
    """
    if args.export:
        print(client.export_feeds())


if __name__ == '__main__':
    main()
remember that computers suck.