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Generalize codebase and add more datasources.

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Fixes #9
Relates #8

* Support mojoreads as a new data source
* Change image file names to hashsums to be more generic
* Clean up the source code by separate relates stuff in own files
* Fix the Chaos Monkeys book
This commit is contained in:
Aaron Fischer 2020-11-10 20:43:04 +01:00
parent dd183627df
commit 08f504f303
6 changed files with 82 additions and 43 deletions
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2
BOOK.mkd
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@ -24,7 +24,7 @@
* September: [Andreas Eschbach "Das größte Abenteuer"](https://www.lovelybooks.de/autor/Andreas-Eschbach/Perry-Rhodan-Das-gr%C3%B6%C3%9Fte-Abenteuer-1955713268-w/) * September: [Andreas Eschbach "Das größte Abenteuer"](https://www.lovelybooks.de/autor/Andreas-Eschbach/Perry-Rhodan-Das-gr%C3%B6%C3%9Fte-Abenteuer-1955713268-w/)
* Oktober: [Christiane-Frohmann "Präraffaelitische Girls erklären das Internet"](https://www.lovelybooks.de/autor/Christiane-Frohmann/Pr%C3%A4raffaelitische-Girls-erkl%C3%A4ren-das-Internet-1499687993-w/) * Oktober: [Christiane-Frohmann "Präraffaelitische Girls erklären das Internet"](https://www.lovelybooks.de/autor/Christiane-Frohmann/Pr%C3%A4raffaelitische-Girls-erkl%C3%A4ren-das-Internet-1499687993-w/)
* November: [Helen Stelthove "Pretty Fly For A Wifi"](https://www.lovelybooks.de/autor/Helen-Stelthove/Pretty-Fly-For-A-Wifi-2032951731-w/) * November: [Helen Stelthove "Pretty Fly For A Wifi"](https://www.lovelybooks.de/autor/Helen-Stelthove/Pretty-Fly-For-A-Wifi-2032951731-w/)
* Dezember: [Antonio Garcia Martinez "Chaos Monkeys"](https://www.lovelybooks.de/autor/Antonio-Garcia-Martinez/Chaos-Monkeys-1565378792-w/) * Dezember: [Antonio Garcia Martinez "Chaos Monkeys"](https://mojoreads.de/book/Chaos-MonkeysAntonio-Garcia-Martinez/361610)
## 2018 ## 2018

14
public/index.html Normal file
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@ -0,0 +1,14 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>okoyono.de -- Buch des Monats</title>
<link rel="stylesheet" href="book.css" />
</head>
<body>
<h1>Buch des Monats</h1>
<a href="comic.html">Comic des Monats</a>
<a href="book.html">Buch des Monats</a>
</body>
</html>

69
src/buchdesmonats/core.clj
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@ -1,16 +1,12 @@
;;; Copyright (C) 2014-2019 Aaron Fischer <mail@aaron-fischer.net> ;;; Copyright (C) 2014-2020 Aaron Fischer <mail@aaron-fischer.net> Permission
;;; ;;; is hereby granted, free of charge, to any person obtaining a copy of this
;;; Permission is hereby granted, free of charge, to any person obtaining a copy of ;;; software and associated documentation files (the "Software"), to deal in the
;;; this software and associated documentation files (the "Software"), to deal in ;;; Software without restriction, including without limitation the rights to
;;; the Software without restriction, including without limitation the rights to ;;; use, copy, modify, merge, publish, distribute, sublicense, and/or sell
;;; use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of ;;; copies of the Software, and to permit persons to whom the Software is
;;; the Software, and to permit persons to whom the Software is furnished to do so, ;;; furnished to do so, subject to the following conditions: The above
;;; subject to the following conditions: ;;; copyright notice and this permission notice shall be included in all copies
;;; ;;; or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
;;; The above copyright notice and this permission notice shall be included in all
;;; copies or substantial portions of the Software.
;;;
;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
;;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS ;;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
;;; FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR ;;; FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
;;; COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER ;;; COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
@ -24,35 +20,26 @@
[clojure.string :as str] [clojure.string :as str]
[clojure.java.io :as io] [clojure.java.io :as io]
[clojure.tools.logging :as log] [clojure.tools.logging :as log]
[me.raynes.fs :as fs])) [me.raynes.fs :as fs]
[buchdesmonats.hash :as hash]
[buchdesmonats.sources.mojoreads :as mojoreads]
[buchdesmonats.sources.lovelybooks :as lovelybooks]))
;; TODO: Make it compatible to other book cover sites (defn bookurl->imageurl [bookurl]
(defn imgurl->bytes [lovelybooks-url] (let [url (java.net.URL. bookurl)]
(let [urls (-> (java.net.URL. lovelybooks-url) (case (.getHost url)
html/html-resource "www.lovelybooks.de" (lovelybooks/find-cover-image bookurl)
(html/select [:img.ResponsiveImage.BookCover]) "lovelybooks.de" (lovelybooks/find-cover-image bookurl)
first "mojoreads.com" (mojoreads/find-cover-image bookurl)
(get-in [:attrs :srcset]) "mojoreads.de" (mojoreads/find-cover-image bookurl))))
(str/split #" "))
url-to-fetch (last (filter #(re-matches #"http.+\.jpg" %) urls)) (defn imgurl->bytes [url]
(let [url-to-fetch (bookurl->imageurl url)
stream (http-client/get url-to-fetch {:as :byte-array})] stream (http-client/get url-to-fetch {:as :byte-array})]
(:body stream))) (:body stream)))
(defn encode-url-part [part] (defn url->file [url target-dir]
(java.net.URLEncoder/encode part "UTF-8")) (io/file target-dir (str (hash/md5 url) ".jpg")))
(defn encode-url [url]
(let [parts (map encode-url-part (re-find #"\/autor\/([^/]+)\/([^/]+)\/?" url))
author (nth parts 1)
book-title (nth parts 2)]
(str "https://lovelybooks.de/autor/" author "/" book-title)))
(defn url->file [lovelybooks-url target-dir]
(let [[_ author title] (re-find #".\/autor\/([^\/]+)\/(.+)-([0-9]+)-.\/$" lovelybooks-url)]
(-> (str author "_" title ".jpg")
str/lower-case
(str/replace #"[^a-z0-9-_.]" "")
(#(io/file target-dir %)))))
(defn scrape-book-urls [datasource-url] (defn scrape-book-urls [datasource-url]
(->> (http-client/get datasource-url {:insecure? true}) (->> (http-client/get datasource-url {:insecure? true})
@ -64,13 +51,11 @@
(defn scrape-book-cover [url target-dir] (defn scrape-book-cover [url target-dir]
(try (try
(let [target-file (url->file url target-dir) (let [target-file (url->file url target-dir)
encoded-url (encode-url url) bytes (imgurl->bytes url)]
bytes (imgurl->bytes encoded-url)]
(with-open [out (io/output-stream target-file)] (with-open [out (io/output-stream target-file)]
(.write out bytes))) (.write out bytes)))
(catch Exception e (catch Exception e
;; TODO: Better exception (examine e?) (log/info "Problem with " url ":" (get-in e [:via :message]) ". Skip it."))))
(log/info "Problems with " url ", skip it."))))
(defn find-missing-covers [books-url target-dir] (defn find-missing-covers [books-url target-dir]
(remove #(fs/exists? (url->file % target-dir)) (remove #(fs/exists? (url->file % target-dir))

11
src/buchdesmonats/hash.clj Normal file
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(ns buchdesmonats.hash
(:import [java.security MessageDigest]
[java.math BigInteger]))
;;; Stolen from: https://gist.github.com/jizhang/4325757#gistcomment-2633984
(defn md5 [^String s]
(->> s
.getBytes
(.digest (MessageDigest/getInstance "MD5"))
(BigInteger. 1)
(format "%032x")))

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src/buchdesmonats/sources/lovelybooks.clj Normal file
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(ns buchdesmonats.sources.lovelybooks
(:require [net.cgrand.enlive-html :as html]
[clojure.string :as str]))
(defn encode-url-part [part]
(java.net.URLEncoder/encode part "UTF-8"))
(defn encode-url [url]
(let [parts (map encode-url-part (re-find #"\/autor\/([^/]+)\/([^/]+)\/?" url))
author (nth parts 1)
book-title (nth parts 2)]
(str "https://lovelybooks.de/autor/" author "/" book-title)))
(defn find-cover-image [url]
(let [encoded-url (encode-url url)
src (-> (html/html-resource (java.net.URL. encoded-url))
(html/select [:img.ResponsiveImage.BookCover])
first
(get-in [:attrs :srcset])
(str/split #" "))]
(last (filter #(re-matches #"http.+\.jpg" %) src))))

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src/buchdesmonats/sources/mojoreads.clj Normal file
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@ -0,0 +1,8 @@
(ns buchdesmonats.sources.mojoreads
(:require [net.cgrand.enlive-html :as html]))
(defn find-cover-image [url]
(-> (html/html-resource (java.net.URL. url))
(html/select [:div.mojoreads-page-content-container :img])
(first)
(get-in [:attrs :src])))