[IMP] tools,web_editor,web_unsplash: improve image optimize for web

This commit introduces the possibility to resize and to select the quality when
optimizing an image for web.

This will be used by the media dialog in a future commit.

The arbitrary resolution limit of 42e6 has been increased to 45e6 to fit some
of the biggest images we might get from Unsplash, and this value has been moved
into a variable so it can be customized.

The mimetype computation has been moved after the image processing because in a
next commit the operation could return the image in a different format than what
was originally given. Eg. BMP -> PNG, or unsupported format -> JPEG.

task-1958000
PR: #31811

1 files changed, 8 insertions, 12 deletions

diff --git a/addons/web_unsplash/controllers/main.py b/addons/web_unsplash/controllers/main.py
index 219342d1c39..6cd0ef9e82b 100644
--- a/addons/web_unsplash/controllers/main.py
+++ b/addons/web_unsplash/controllers/main.py
@@ -1,14 +1,14 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 import base64
-import io
 import logging
+import mimetypes
 import requests
 import werkzeug.utils
 
-from PIL import Image
 from odoo import http, tools, _
 from odoo.http import request
+from odoo.tools.mimetypes import guess_mimetype
 from werkzeug.urls import url_encode
 
 logger = logging.getLogger(__name__)
@@ -89,8 +89,7 @@ class Web_Unsplash(http.Controller):
                     continue
 
                 # get mime-type of image url because unsplash url dosn't contains mime-types in url
-                mimetype = req.headers.get('Content-Type')
-                datas = req.content
+                image_base64 = base64.b64encode(req.content)
             except requests.exceptions.ConnectionError as e:
                 logger.exception("Connection Error: " + str(e))
                 continue
@@ -98,13 +97,10 @@ class Web_Unsplash(http.Controller):
                 logger.exception("Timeout: " + str(e))
                 continue
 
-            # optimized image before save
-            if mimetype in ('image/jpeg', 'image/png'):
-                image = Image.open(io.BytesIO(datas))
-                if image.format in ('PNG', 'JPEG'):
-                    datas = tools.image_save_for_web(image)
-                    # append image extension in name
-                    query += '.' + str.lower(image.format)
+            image_base64 = tools.image_optimize_for_web(image_base64)
+            mimetype = guess_mimetype(base64.b64decode(image_base64))
+            # append image extension in name
+            query += mimetypes.guess_extension(mimetype) or ''
 
             # /unsplash/5gR788gfd/lion
             url_frags = ['unsplash', key, query]
@@ -114,7 +110,7 @@ class Web_Unsplash(http.Controller):
                 'url': '/' + '/'.join(url_frags),
                 'datas_fname': '_'.join(url_frags),
                 'mimetype': mimetype,
-                'datas': base64.b64encode(datas),
+                'datas': image_base64,
                 'public': res_model == 'ir.ui.view',
                 'res_id': res_id,
                 'res_model': res_model,