[Metadata Source Plugin] Moly.hu

[Comfy.n]

Originally Posted by pdurrant

Added to the first post.

Did you notice the plugin updater serves 5.0.6 which is old version, older even than 5.0.9?



I think the plugin updater doesn't like more than one zip in the main post.

[pdurrant]

Originally Posted by Comfy.n

Did you notice the plugin updater serves 5.0.6 which is old version, older even than 5.0.9?

Attachment 224702

I think the plugin updater doesn't like more than one zip in the main post.

Hmm... OK, I'll try removing all except the latest.

[xtraktor]

Originally Posted by pdurrant

Hmm... OK, I'll try removing all except the latest.

The plugin now supports automatic updates via Calibre. Thank you!

[ShutterStarTW]

I have prepared version 5.1.3 of the Moly.hu metadata source plugin.

This update fixes ISBN searches so that the plugin selects the matching edition instead of returning metadata from the first edition listed for the work.

The downloaded ISBN, publisher, publication year and cover now all belong to the same matching edition. Cover downloads using only an ISBN or a direct Moly.hu identifier also work without requiring a title.

Compatible with calibre 5 or newer and tested with calibre 9.13.

[pdurrant]

Originally Posted by ShutterStarTW

I have prepared version 5.1.3 of the Moly.hu metadata source plugin.

Added to first post

[ShutterStarTW]

I have prepared version 5.1.4 of the Moly.hu metadata source plugin.

This update fixes ISBN searches after Moly.hu changed its book page layout. The plugin could no longer find the list of editions on the page, so ISBN lookups returned no results. It now detects the editions again and selects the matching one.

Compatible with calibre 5 or newer and tested with calibre 9.13.

[acsaszi]

Unfortunately, metadata hasn't been working for me since v9.15, and it doesn't work in v9.16 either.

[xtraktor]

Originally Posted by acsaszi

Unfortunately, metadata hasn't been working for me since v9.15, and it doesn't work in v9.16 either.

Every version worked perfectly for me, but they’ve made changes on the Moly website, and now it doesn’t work for items like *Galaktika*—since those lack an ISBN. This applies to both version 5.1.3 (which used to work) and 5.1.4.

[ShutterStarTW]

I have prepared version 5.1.5 of the Moly.hu metadata source plugin.

This update addresses books that have no ISBN on Moly.hu, such as the Galaktika issues. If none of the Moly.hu works found for the book's ISBN lists that ISBN as an edition, the plugin now retries without the ISBN and searches by title and author. Books without an ISBN are searched by title and author as before.

Compatible with calibre 5 or newer and tested with calibre 9.13.

@xtraktor: thank you for the report. In my tests Galaktika issues without an ISBN were found by title and author with 5.1.4 as well, so if a book is still not found with 5.1.5, please post its title, author and identifiers, and the metadata download log (calibre shows it after the download).

@acsaszi: if metadata still does not work with 5.1.5 on calibre 9.15/9.16, please post the same download log.

[xtraktor]

Originally Posted by ShutterStarTW

I have prepared version 5.1.5 of the Moly.hu metadata source plugin.

@xtraktor: thank you for the report. In my tests Galaktika issues without an ISBN were found by title and author with 5.1.4 as well, so if a book is still not found with 5.1.5, please post its title, author and identifiers, and the metadata download log (calibre shows it after the download).

Something still not working (I try with and without author):

Spoiler:

calibre, version 9.16.0
HIBA: Nincs találat: <p>Nem sikerült találni olyan könyveket, amelyek megfelelnek a keresésnek. Próbálkozzon <b>részletesebb</b> kereséssel. Például csak a szerző nevét és egyetlen megkülönböztető szót használjon a címből. <p>A teljes napló megtekintéséhez kattintson a "Részletek" gombra.

Running identify query with parameters:
{'title': 'Galaktika 437', 'authors': ['Mund Katalin'], 'identifiers': {'moly_hu': 'mund-katalin-szerk-galaktika-437'}, 'timeout': 30}
Using plugins: Moly_hu (5, 1, 5)
The log from individual plugins is below

****************************** Moly_hu (5, 1, 5) ******************************
Found 0 results
Downloading from Moly_hu took 0.31912755966186523
Title:Galaktika 437
Authors:['Mund Katalin']

Parsed moly.hu identifier: mund-katalin-szerk-galaktika-437
Title: []
Parsed title: None
Authors: []
Parsed authors: None
Could not find title/authors/moly.hu id for 'https://moly.hu/konyvek/mund-katalin-szerk-galaktika-437'
Moly.hu id: 'mund-katalin-szerk-galaktika-437' Title: None Authors: None

************************************************** ******************************
The identify phase took 0.40 seconds
The longest time (0.319128) was taken by: Moly_hu
Merging results from different sources
We have 0 merged results, merging took: 0.00 seconds

[acsaszi]

Everything is fine on my end now! Big THX!

[ShutterStarTW]

Originally Posted by xtraktor

Something still not working (I try with and without author):

Spoiler:

calibre, version 9.16.0
HIBA: Nincs találat: <p>Nem sikerült találni olyan könyveket, amelyek megfelelnek a keresésnek. Próbálkozzon <b>részletesebb</b> kereséssel. Például csak a szerző nevét és egyetlen megkülönböztető szót használjon a címből. <p>A teljes napló megtekintéséhez kattintson a "Részletek" gombra.

Running identify query with parameters:
{'title': 'Galaktika 437', 'authors': ['Mund Katalin'], 'identifiers': {'moly_hu': 'mund-katalin-szerk-galaktika-437'}, 'timeout': 30}
Using plugins: Moly_hu (5, 1, 5)
The log from individual plugins is below

****************************** Moly_hu (5, 1, 5) ******************************
Found 0 results
Downloading from Moly_hu took 0.31912755966186523
Title:Galaktika 437
Authors:['Mund Katalin']

Parsed moly.hu identifier: mund-katalin-szerk-galaktika-437
Title: []
Parsed title: None
Authors: []
Parsed authors: None
Could not find title/authors/moly.hu id for 'https://moly.hu/konyvek/mund-katalin-szerk-galaktika-437'
Moly.hu id: 'mund-katalin-szerk-galaktika-437' Title: None Authors: None

************************************************** ******************************
The identify phase took 0.40 seconds
The longest time (0.319128) was taken by: Moly_hu
Merging results from different sources
We have 0 merged results, merging took: 0.00 seconds

I have prepared version 5.1.6 of the Moly.hu metadata source plugin.

@xtraktor: thank you for the log. The book had a moly_hu identifier (probably saved by an earlier download) that points to no Moly.hu book. Moly.hu then returns its home page, which has no title or author, so the plugin found nothing and never searched again. Now, if the moly_hu identifier leads to no result, the plugin retries without it and searches by title and author. With this version "Galaktika 437" by Mund Katalin is found as "Galaktika 437 XL".

If it still fails, please post the log again.

[xtraktor]

Originally Posted by ShutterStarTW

I have prepared version 5.1.6 of the Moly.hu metadata source plugin.

Thank you very much, it’s working fine now.
For the newer Galaktika issues, only the XL version is listed; they no longer upload the identifier for the standard version separately.

[snowdog]

There seems to be a problem with the moly.hu server, because it is refusing to serve the Calibre plug-in.

Error message: File “mechanize\_mechanize.py”, line 313, in _mech_open
mechanize._response.get_seek_wrapper_class.<locals >.httperror_seek_wrapper: HTTP Error 403: Forbidden

This specific error message (HTTP Error 403: Forbidden) means that the Moly.hu server understood Calibre’s request but intentionally denied access.
The reason behind this is that the Moly.hu servers (or the security system behind them, e.g., Cloudflare) detect Calibre as a bot (an automated program) and block the request due to suspicious queries. Calibre’s built-in Python library, called `mechanize`, sends the request, to which Moly returns a “Forbidden” response.

Update

[ShutterStarTW]

Originally Posted by snowdog

There seems to be a problem with the moly.hu server, because it is refusing to serve the Calibre plug-in.

Error message: File “mechanize\_mechanize.py”, line 313, in _mech_open
mechanize._response.get_seek_wrapper_class.<locals >.httperror_seek_wrapper: HTTP Error 403: Forbidden

This specific error message (HTTP Error 403: Forbidden) means that the Moly.hu server understood Calibre’s request but intentionally denied access.
The reason behind this is that the Moly.hu servers (or the security system behind them, e.g., Cloudflare) detect Calibre as a bot (an automated program) and block the request due to suspicious queries. Calibre’s built-in Python library, called `mechanize`, sends the request, to which Moly returns a “Forbidden” response.

Update

@snowdog: I can't reproduce the 403 here. With Moly_hu 5.1.6 on Calibre the live test passes: title+author search, ISBN search, direct moly_hu identifier and cover download all work, and moly.hu doesn't reject any request.

So the block is probably specific to your network or IP (VPN, proxy, shared IP, or a temporary Cloudflare rule), not the plugin. To check:

1. Open https://moly.hu in a browser on the same machine. If it shows a challenge page or a block, that's the cause.
2. Try another network (e.g. a phone hotspot) or turn off any VPN/proxy.
3. If it still fails, please post: your Calibre version, the plugin version (Preferences > Plugins > Moly_hu), the book you searched for (title, author, ISBN) and the full log from the failed metadata download.

A 403 usually clears on its own after a while if it's a temporary rate limit.