| 1 | /* |
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| 2 | SPDX-FileCopyrightText: 2021 Wolthera van Hövell tot Westerflier <griffinvalley@gmail.com> |
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| 3 | |
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| 4 | SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL |
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| 5 | */ |
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| 6 | |
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| 7 | #ifndef OPDSPROVIDER_H |
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| 8 | #define OPDSPROVIDER_H |
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| 9 | |
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| 10 | #include "provider.h" |
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| 11 | #include "xmlloader_p.h" |
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| 12 | #include <QMap> |
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| 13 | #include <memory> |
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| 14 | |
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| 15 | /** |
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| 16 | * OPDS provider. |
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| 17 | * |
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| 18 | * The OPDS provider loads OPDS feeds: |
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| 19 | * https://specs.opds.io/opds-1.2 |
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| 20 | * |
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| 21 | * These feeds are most common with online book providers, but the format itself is agnostic. |
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| 22 | * For loading feeds, these, as with other providers, need to have a KNSRC file pointed |
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| 23 | * at a Provider.xml, with the "type" element containing "opds" as text. |
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| 24 | * |
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| 25 | * Supports: |
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| 26 | * - Loads a given feed, it's images, and loads it's download links. |
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| 27 | * - Opensearch for the search, if available. |
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| 28 | * - Should load full entries, if possible. |
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| 29 | * - Navigation feed entries can be selected. |
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| 30 | * |
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| 31 | * TODO: |
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| 32 | * - We need a better handling of non-free items (requires authentication). |
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| 33 | * - entry navigation links are not supported. |
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| 34 | * - pagination support (together with the navigation links) |
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| 35 | * - No Sorting |
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| 36 | * |
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| 37 | * Would-be-nice, but requires a lot of rewiring in knewstuff: |
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| 38 | * - We could get authenticated feeds going by using basic http authentiation(in spec), or have bearer token uris (oauth bearcaps). |
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| 39 | * - Autodiscovery or protocol based discovery of opds catalogs, this does not gel with the provider xml system used by knewstuff. |
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| 40 | * |
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| 41 | * @since 5.83 |
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| 42 | */ |
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| 43 | |
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| 44 | namespace KNSCore |
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| 45 | { |
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| 46 | class OPDSProviderPrivate; |
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| 47 | class OPDSProvider : public Provider |
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| 48 | { |
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| 49 | Q_OBJECT |
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| 50 | public: |
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| 51 | typedef QList<Provider *> List; |
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| 52 | |
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| 53 | OPDSProvider(); |
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| 54 | ~OPDSProvider() override; |
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| 55 | |
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| 56 | // Unique ID, url of the feed. |
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| 57 | QString id() const override; |
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| 58 | |
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| 59 | // Name of the feed. |
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| 60 | QString name() const override; |
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| 61 | |
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| 62 | // Feed icon |
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| 63 | QUrl icon() const override; |
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| 64 | |
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| 65 | void loadEntries(const KNSCore::Provider::SearchRequest &request) override; |
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| 66 | void loadEntryDetails(const KNSCore::Entry &entry) override; |
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| 67 | void loadPayloadLink(const KNSCore::Entry &entry, int linkNumber) override; |
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| 68 | |
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| 69 | bool setProviderXML(const QDomElement &xmldata) override; |
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| 70 | bool isInitialized() const override; |
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| 71 | void setCachedEntries(const KNSCore::Entry::List &cachedEntries) override; |
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| 72 | |
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| 73 | const std::unique_ptr<OPDSProviderPrivate> d; |
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| 74 | |
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| 75 | Q_DISABLE_COPY(OPDSProvider) |
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| 76 | }; |
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| 77 | |
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| 78 | } |
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| 79 | |
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| 80 | #endif // OPDSPROVIDER_H |
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| 81 | |
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