Files: 6b5ec2095160533416cd20a72f45e53f40849103 / bin.js
14501 bytesRaw
1 | |
2 | |
3 | var fs = require('fs') |
4 | var path = require('path') |
5 | var URL = require('url') |
6 | var http = require('http') |
7 | var https = require('https') |
8 | var crypto = require('crypto') |
9 | var readline = require('readline') |
10 | var os = require('os') |
11 | |
12 | var ssbClient = require('ssb-client') |
13 | var pull = require('pull-stream') |
14 | |
15 | var pkg = require('./package') |
16 | |
17 | var userAgentBase = pkg.name + '/' + pkg.version |
18 | var userAgentContact |
19 | var userAgentBot = false |
20 | |
21 | function estimateMessageSize(content) { |
22 | var draftMsg = { |
23 | key: '%0000000000000000000000000000000000000000000=.sha256', |
24 | value: { |
25 | previous: '%0000000000000000000000000000000000000000000=.sha256', |
26 | author: '@0000000000000000000000000000000000000000000=.ed25519', |
27 | sequence: 100000, |
28 | timestamp: 1000000000000.0001, |
29 | hash: 'sha256', |
30 | content: content, |
31 | signature: '00000000000000000000000000000000000000000000000000000000000000000000000000000000000000==.sig.ed25519' |
32 | } |
33 | } |
34 | return JSON.stringify(draftMsg, null, 2).length |
35 | } |
36 | |
37 | function getJson(url, cb) { |
38 | var opts = URL.parse(url) |
39 | opts.headers = { |
40 | 'User-Agent': userAgentBase |
41 | + (userAgentContact ? ' (' + userAgentContact + ')' : '') |
42 | + (userAgentBot ? ' bot' : '') |
43 | } |
44 | var h = opts.protocol === 'https:' ? https : http |
45 | h.get(opts, function (res) { |
46 | if (res.statusCode !== 200) { |
47 | console.error(res.headers, url) |
48 | return cb(new Error('HTTP ' + res.statusCode + ' ' + res.statusMessage)) |
49 | } |
50 | var bufs = [] |
51 | res.on('data', function (buf) { |
52 | bufs.push(buf) |
53 | }) |
54 | res.on('end', function () { |
55 | res.removeListener('error', cb) |
56 | var buf = Buffer.concat(bufs) |
57 | bufs = null |
58 | var data |
59 | try { |
60 | data = JSON.parse(buf.toString('utf8')) |
61 | } catch(e) { |
62 | return cb(e) |
63 | } |
64 | cb(null, data) |
65 | }) |
66 | res.on('error', cb) |
67 | }) |
68 | } |
69 | |
70 | function publishDrafts(sbot, drafts, cb) { |
71 | var draftIdIndex = {} |
72 | drafts.forEach(function (draft, i) { |
73 | draftIdIndex[draft.draftId] = i |
74 | }) |
75 | var ids = [] |
76 | |
77 | function replaceDraftIds(obj) { |
78 | if (typeof obj === 'string') { |
79 | var i = draftIdIndex[obj] |
80 | if (typeof i === 'number') { |
81 | var id = ids[i] |
82 | if (!id) throw new ReferenceError('draft referernces unknown message') |
83 | return id |
84 | } |
85 | } else if (Array.isArray(obj)) { |
86 | return obj.map(replaceDraftIds) |
87 | } else if (obj !== null && typeof obj === 'object') { |
88 | var o = {} |
89 | for (var k in obj) o[k] = replaceDraftIds(obj[k]) |
90 | return o |
91 | } |
92 | return obj |
93 | } |
94 | |
95 | pull( |
96 | pull.values(drafts), |
97 | pull.asyncMap(function (draft, cb) { |
98 | var content = replaceDraftIds(draft.content) |
99 | sbot.publish(content, function (err, msg) { |
100 | if (err) return cb(err) |
101 | ids.push(msg.key) |
102 | cb(null, msg) |
103 | }) |
104 | }), |
105 | pull.collect(cb) |
106 | ) |
107 | } |
108 | |
109 | var args = process.argv.slice(2) |
110 | var yes = false |
111 | var dry = false |
112 | var help = false |
113 | var urls = [] |
114 | args.forEach(function (arg) { |
115 | if (arg[0] === '-') switch (arg) { |
116 | case '-n': return dry = true |
117 | case '-y': return yes = true |
118 | case '-h': return help = true |
119 | default: throw 'Unknown argument: ' + arg |
120 | } else urls.push(arg) |
121 | }) |
122 | |
123 | if (help) { |
124 | process.stdout.write(fs.readFileSync(path.join(__dirname, 'usage.txt'))) |
125 | process.exit(0) |
126 | } |
127 | |
128 | ssbClient(function (err, sbot, config) { |
129 | if (err) throw err |
130 | var conf = config.wikimedia || {} |
131 | userAgentContact = conf.contact |
132 | userAgentBot = conf.bot |
133 | |
134 | if (urls.length === 0) { |
135 | var pagesFile = path.join(config.path, 'wikimedia-pages.txt') |
136 | var pagesData = fs.readFileSync(pagesFile, 'utf8') |
137 | urls = pagesData.split('\n').filter(RegExp.prototype.test.bind(/[^#]/)) |
138 | if (!urls.length) { |
139 | console.log('No pages to sync.') |
140 | return sbot.close() |
141 | } |
142 | } |
143 | |
144 | var pagesInfo = urls.map(function (page) { |
145 | var m = /^(https?:\/\/.*?)(\/wiki)?\/(.*)$/.exec(page) |
146 | if (!m) throw 'Unable to parse page URL ' + page |
147 | return { |
148 | site: m[1] + '/', |
149 | api: m[1] + (m[2] ? '/w' : '/wiki') + '/api.php', |
150 | title: m[3] |
151 | } |
152 | }) |
153 | var pagesInfoByApi = {} |
154 | pagesInfo.forEach(function (pageInfo) { |
155 | var infos = pagesInfoByApi[pageInfo.api] || (pagesInfoByApi[pageInfo.api] = []) |
156 | infos.push(pageInfo) |
157 | }) |
158 | console.log('Normalizing titles...') |
159 | var waiting = 0 |
160 | for (var api in pagesInfoByApi) (function (api) { |
161 | var pagesInfoForApi = pagesInfoByApi[api] |
162 | var pagesInfoForApiByTitle = {} |
163 | var titles = pagesInfoForApi.map(function (info) { |
164 | pagesInfoForApiByTitle[info.title] = info |
165 | return info.title |
166 | }) |
167 | var url = api + '?format=json&action=query' + |
168 | '&titles=' + encodeURIComponent('\x1f' + titles.join('\x1f')) + |
169 | '&' // trailing & needed for some reason |
170 | waiting++ |
171 | getJson(url, function (err, data) { |
172 | if (err) throw err |
173 | if (data.warnings) console.trace('Warnings:', data.warnings) |
174 | if (data.query.normalized) data.query.normalized.forEach(function (norm) { |
175 | var info = pagesInfoForApiByTitle[norm.from] |
176 | if (!info) { |
177 | console.error(JSON.stringify({titles: titles, response: data}, 0, 2)) |
178 | throw new Error('Unexpected title in server response') |
179 | } |
180 | // console.log('Normalized title', norm.from, norm.to) |
181 | info.title = norm.to |
182 | }) |
183 | if (!--waiting) next() |
184 | }) |
185 | }(api)) |
186 | |
187 | function next() { |
188 | console.log('Getting revisions...') |
189 | var userHashes = {} |
190 | pull( |
191 | pull.values(pagesInfo), |
192 | pull.asyncMap(function (pageInfo, cb) { |
193 | // Calculate blob id for page URL + title, for linking |
194 | pull( |
195 | pull.once(pageInfo.site + '\t' + pageInfo.title), |
196 | sbot.blobs.add(function (err, hash) { |
197 | pageInfo.hash = hash |
198 | cb(null, pageInfo) |
199 | }) |
200 | ) |
201 | }), |
202 | pull.asyncMap(function (pageInfo, cb) { |
203 | // Get previous messages for this page. |
204 | // Simple solution: find the revision with latest timestamp. |
205 | var maxRevTs = '' |
206 | var maxRevMsgId |
207 | pull( |
208 | sbot.links({ |
209 | dest: pageInfo.hash, |
210 | rel: 'pageId', |
211 | values: true, |
212 | meta: false |
213 | }), |
214 | pull.filter(function (msg) { |
215 | var c = msg && msg.value && msg.value.content |
216 | return c |
217 | && c.type === 'wikimedia/revisions' |
218 | && c.site === pageInfo.site |
219 | && c.title === pageInfo.title |
220 | }), |
221 | pull.drain(function (msg) { |
222 | var c = msg && msg.value && msg.value.content |
223 | var revs = Array.isArray(c.revisions) && c.revisions |
224 | if (revs) revs.forEach(function (rev) { |
225 | if (rev && rev.timestamp > maxRevTs) { |
226 | maxRevTs = rev.timestamp |
227 | maxRevMsgId == msg.key |
228 | } |
229 | }) |
230 | }, function (err) { |
231 | if (err) return cb(err) |
232 | pageInfo.latestMsgId = maxRevMsgId |
233 | pageInfo.latestRevTs = maxRevTs |
234 | cb(null, pageInfo) |
235 | }) |
236 | ) |
237 | }), |
238 | pull.map(function (pageInfo) { |
239 | // Get new revisions. |
240 | var rvcontinue, rvdone |
241 | var rvstart = pageInfo.latestRevTs |
242 | var prevId = pageInfo.latestMsgId |
243 | var aborted |
244 | var revisions = pull( |
245 | function (abort, cb) { |
246 | if (aborted = abort) return cb(abort) |
247 | if (rvdone) return cb(true) |
248 | |
249 | console.log('Getting revisions for', pageInfo.title + '...', |
250 | rvstart || '', rvcontinue || '') |
251 | var url = api + '?format=json&action=query&prop=revisions&rvslots=*' |
252 | + '&titles=' + encodeURIComponent(pageInfo.title) |
253 | + '&rvprop=ids|timestamp|comment|user|sha1|size|slotsha1|slotsize|content|roles|flags|tags' |
254 | + '&rvdir=newer' |
255 | + (rvcontinue ? '&rvcontinue=' + rvcontinue : '') |
256 | + (rvstart ? '&rvstart=' + rvstart : '') |
257 | + '&rvlimit=50' |
258 | getJson(url, function (err, data) { |
259 | if (aborted) return err && console.trace(err) |
260 | if (err) return cb(err) |
261 | |
262 | var warnings = data.warnings |
263 | if (warnings) { |
264 | if (warnings.main) { |
265 | if (warnings.main['*'] === 'Unrecognized parameter: rvslots.') { |
266 | delete warnings.main['*'] |
267 | if (Object.keys(warnings.main).length === 0) { |
268 | delete warnings.main |
269 | } |
270 | } |
271 | } |
272 | if (warnings.revisions) { |
273 | if (warnings.revisions['*'] === 'Unrecognized values for parameter "rvprop": slotsha1, slotsize, roles.') { |
274 | delete warnings.revisions['*'] |
275 | if (Object.keys(warnings.revisions).length === 0) { |
276 | delete warnings.revisions |
277 | } |
278 | } |
279 | } |
280 | if (Object.keys(warnings).length > 0) { |
281 | console.trace('Warnings:', warnings) |
282 | } |
283 | } |
284 | |
285 | rvcontinue = data.continue && data.continue.rvcontinue |
286 | if (!rvcontinue) rvdone = true |
287 | var page |
288 | if (data.query) for (var pageid in data.query.pages) { |
289 | page = data.query.pages[pageid] |
290 | if (page.title === pageInfo.title) break |
291 | else page = null |
292 | } |
293 | if (!page) { |
294 | console.trace(data.query.pages, pageInfo) |
295 | return cb(new Error('Unable to find page')) |
296 | } |
297 | var revs = page.revisions || [] |
298 | console.log('Got ' + revs.length + ' revisions') |
299 | cb(null, revs) |
300 | }) |
301 | }, |
302 | pull.flatten(), |
303 | |
304 | pull.through(function (rev) { |
305 | if (!rev.slots) { |
306 | // old API does not use slots. |
307 | // Transform result to be forward-compatible. |
308 | rev.slots = { |
309 | main: { |
310 | size: rev.size, |
311 | sha1: rev.sha1, |
312 | contentmodel: rev.contentmodel, |
313 | contentformat: rev.contentformat, |
314 | '*': rev['*'] |
315 | } |
316 | } |
317 | delete rev.contentmodel |
318 | delete rev.contentformat |
319 | delete rev['*'] |
320 | } |
321 | // duplicate values supplied in new API in slotsize and slotsha1 |
322 | delete rev.sha1 |
323 | delete rev.size |
324 | }), |
325 | |
326 | pull.asyncMap(function (rev, cb) { |
327 | // Calculate blob id for user page URL + title, for linking |
328 | var hash = userHashes[rev.user] |
329 | if (hash) { |
330 | rev.userId = hash |
331 | return cb(null, rev) |
332 | } |
333 | pull( |
334 | pull.once(pageInfo.site + '\tUser:' + rev.user), |
335 | sbot.blobs.add(function (err, hash) { |
336 | rev.userId = userHashes[rev.user] = hash |
337 | cb(null, rev) |
338 | }) |
339 | ) |
340 | }), |
341 | |
342 | pull.asyncMap(function (rev, cb) { |
343 | var waiting = 0 |
344 | for (var slot in rev.slots) (function (slot) { |
345 | waiting++ |
346 | var slotInfo = rev.slots[slot] |
347 | var content = slotInfo['*'] |
348 | if (!content) { |
349 | console.trace(slotInfo) |
350 | return cb(new Error('Missing content')) |
351 | } |
352 | var sha1 = crypto.createHash('sha1').update(content).digest('hex') |
353 | if (sha1 !== slotInfo.sha1) { |
354 | console.trace(slotInfo, sha1) |
355 | return cb(new Error('Mismatched content sha1')) |
356 | } |
357 | pull( |
358 | pull.once(content), |
359 | sbot.blobs.add(function (err, hash) { |
360 | if (err) return cb(err) |
361 | slotInfo.link = hash |
362 | delete slotInfo['*'] |
363 | if (!--waiting) cb(null, rev) |
364 | }) |
365 | ) |
366 | }(slot)) |
367 | }) |
368 | ) |
369 | |
370 | var queuedRevisions = [] |
371 | var ended |
372 | function cbDraft(content, cb) { |
373 | if (!content.revisions.length) { |
374 | console.log('No revisions for', pageInfo.title) |
375 | return cb(true) |
376 | } |
377 | console.log('Prepared a message', |
378 | 'with', content.revisions.length, 'revisions', |
379 | 'for', pageInfo.title) |
380 | prevId = '%' + crypto.createHash('sha256').update(JSON.stringify(content)).digest('base64') + '.draft6' |
381 | cb(null, { |
382 | draftId: prevId, |
383 | content: content |
384 | }) |
385 | } |
386 | |
387 | return function (abort, cb) { |
388 | if (abort) return revisions(abort, cb) |
389 | if (ended) return cb(true) |
390 | var content = { |
391 | type: 'wikimedia/revisions', |
392 | site: pageInfo.site, |
393 | title: pageInfo.title, |
394 | pageId: pageInfo.hash, |
395 | parents: prevId ? [prevId] : undefined, |
396 | revisions: queuedRevisions.splice(0) |
397 | } |
398 | revisions(null, function next(end, revision) { |
399 | if (ended = end) return cbDraft(content, cb) |
400 | content.revisions.push(revision) |
401 | if (estimateMessageSize(content) > 8192) { |
402 | queuedRevisions.push(content.revisions.pop()) |
403 | // console.log('filled msg for ', pageInfo.title, ' with ', content.revisions.length, 'revisions') |
404 | return cbDraft(content, cb) |
405 | } |
406 | revisions(null, next) |
407 | }) |
408 | } |
409 | }), |
410 | pull.flatten(), |
411 | |
412 | pull.collect(function (err, drafts) { |
413 | if (err) throw err |
414 | if (dry) { |
415 | console.log(JSON.stringify(drafts, 0, 2)) |
416 | return sbot.close() |
417 | } |
418 | if (!drafts.length) { |
419 | console.log('No messages to publish.') |
420 | return sbot.close() |
421 | } |
422 | if (yes) return confirmed(true) |
423 | var rl = readline.createInterface({ |
424 | input: process.stdin, |
425 | output: process.stdout |
426 | }) |
427 | rl.question('Publish ' + drafts.length + ' messages? [Y/n] ', function (answer) { |
428 | rl.close() |
429 | confirmed(!/^n/i.test(answer)) |
430 | }) |
431 | function confirmed(yes) { |
432 | if (!yes) return sbot.close() |
433 | publishDrafts(sbot, drafts, function (err, msgs) { |
434 | if (err) throw err |
435 | console.log('Published:\n' + msgs.map(function (msg) { |
436 | return msg.key |
437 | }.join('\n'))) |
438 | sbot.close() |
439 | }) |
440 | } |
441 | }) |
442 | ) |
443 | } |
444 | }) |
445 |
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