Enhancement: allow regex timeout configuration

[skip ci]

docs/configuration.md

@@ -1209,6 +1209,14 @@ left unassigned, preventing low-confidence guesses from being applied.
 
     Defaults to 0.6.
 
+#### [`PAPERLESS_MATCH_REGEX_TIMEOUT_SECONDS=<float>`](#PAPERLESS_MATCH_REGEX_TIMEOUT_SECONDS) {#PAPERLESS_MATCH_REGEX_TIMEOUT_SECONDS}
+
+: Sets the timeout, in seconds, for regular expression matching. Increase this
+value if date parsing or user-defined matching rules time out when processing
+long documents, especially on slower hardware.
+
+    Defaults to 0.1 seconds.
+
 #### [`PAPERLESS_DATE_PARSER_LANGUAGES=<lang>`](#PAPERLESS_DATE_PARSER_LANGUAGES) {#PAPERLESS_DATE_PARSER_LANGUAGES}
 
 : Specifies which language Paperless should use when parsing dates from documents.

src-ui/messages.xlf

@@ -1345,7 +1345,7 @@
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1808</context>
+          <context context-type="linenumber">1865</context>
         </context-group>
       </trans-unit>
       <trans-unit id="1577733187050997705" datatype="html">
@@ -2423,7 +2423,7 @@
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">673</context>
+          <context context-type="linenumber">690</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-version-dropdown/document-version-dropdown.component.html</context>
@@ -3330,11 +3330,11 @@
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1422</context>
+          <context context-type="linenumber">1479</context>
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1809</context>
+          <context context-type="linenumber">1866</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-list/bulk-editor/bulk-editor.component.ts</context>
@@ -3935,7 +3935,7 @@
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1375</context>
+          <context context-type="linenumber">1432</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-list/bulk-editor/bulk-editor.component.ts</context>
@@ -4079,7 +4079,7 @@
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1862</context>
+          <context context-type="linenumber">1919</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6661109599266152398" datatype="html">
@@ -4090,7 +4090,7 @@
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1863</context>
+          <context context-type="linenumber">1920</context>
         </context-group>
       </trans-unit>
       <trans-unit id="5162686434580248853" datatype="html">
@@ -4101,7 +4101,7 @@
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1864</context>
+          <context context-type="linenumber">1921</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6665634854532231106" datatype="html">
@@ -6238,7 +6238,7 @@
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1379</context>
+          <context context-type="linenumber">1436</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-list/bulk-editor/bulk-editor.component.ts</context>
@@ -8662,152 +8662,203 @@
         <source>Error retrieving metadata</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">440</context>
+          <context context-type="linenumber">442</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2218903673684131427" datatype="html">
         <source>An error occurred loading content: <x id="PH" equiv-text="err.message ?? err.toString()"/></source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">542,544</context>
+          <context context-type="linenumber">545,547</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1000,1002</context>
+          <context context-type="linenumber">1024,1026</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6357361810318120957" datatype="html">
         <source>Document was updated</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">668</context>
+          <context context-type="linenumber">685</context>
         </context-group>
       </trans-unit>
       <trans-unit id="5154064822428631306" datatype="html">
         <source>Document was updated at <x id="PH" equiv-text="formattedModified"/>.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">669</context>
+          <context context-type="linenumber">686</context>
         </context-group>
       </trans-unit>
       <trans-unit id="8462497568316256794" datatype="html">
         <source>Reload to discard your local unsaved edits and load the latest remote version.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">670</context>
+          <context context-type="linenumber">687</context>
         </context-group>
       </trans-unit>
       <trans-unit id="7967484035994732534" datatype="html">
         <source>Reload</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">672</context>
+          <context context-type="linenumber">689</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2907037627372942104" datatype="html">
         <source>Document reloaded with latest changes.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">728</context>
+          <context context-type="linenumber">745</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6435639868943916539" datatype="html">
         <source>Document reloaded.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">739</context>
+          <context context-type="linenumber">756</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6142395741265832184" datatype="html">
         <source>Next document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">841</context>
+          <context context-type="linenumber">858</context>
         </context-group>
       </trans-unit>
       <trans-unit id="651985345816518480" datatype="html">
         <source>Previous document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">851</context>
+          <context context-type="linenumber">868</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2885986061416655600" datatype="html">
         <source>Close document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">859</context>
+          <context context-type="linenumber">876</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">143</context>
+          <context context-type="linenumber">151</context>
         </context-group>
       </trans-unit>
       <trans-unit id="8229691481345614469" datatype="html">
         <source>Save document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">866</context>
+          <context context-type="linenumber">883</context>
         </context-group>
       </trans-unit>
       <trans-unit id="1784543155727940353" datatype="html">
         <source>Save and close / next</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">875</context>
+          <context context-type="linenumber">892</context>
         </context-group>
       </trans-unit>
       <trans-unit id="7427704425579737895" datatype="html">
         <source>Error retrieving version content</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">983</context>
+          <context context-type="linenumber">1006</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="159901853873315050" datatype="html">
+        <source>Unsaved Changes</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
+          <context context-type="linenumber">1050</context>
+        </context-group>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/guards/dirty-form.guard.ts</context>
+          <context context-type="linenumber">15</context>
+        </context-group>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/guards/dirty-saved-view.guard.ts</context>
+          <context context-type="linenumber">27</context>
+        </context-group>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
+          <context context-type="linenumber">143</context>
+        </context-group>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
+          <context context-type="linenumber">170</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="5905048729613762185" datatype="html">
+        <source>You have unsaved changes to the content of this version.</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
+          <context context-type="linenumber">1051</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="85184271222513014" datatype="html">
+        <source>Switching versions will discard them.</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
+          <context context-type="linenumber">1052</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="2565707334844767610" datatype="html">
+        <source>Discard and switch</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
+          <context context-type="linenumber">1054</context>
+        </context-group>
+      </trans-unit>
+      <trans-unit id="2109314380040637387" datatype="html">
+        <source>Save and switch</source>
+        <context-group purpose="location">
+          <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
+          <context context-type="linenumber">1056</context>
         </context-group>
       </trans-unit>
       <trans-unit id="3456881259945295697" datatype="html">
         <source>Error retrieving suggestions.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1043</context>
+          <context context-type="linenumber">1099</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2194092841814123758" datatype="html">
         <source>Document &quot;<x id="PH" equiv-text="newValues.title"/>&quot; saved successfully.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1255</context>
+          <context context-type="linenumber">1311</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1282</context>
+          <context context-type="linenumber">1339</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6626387786259219838" datatype="html">
         <source>Error saving document &quot;<x id="PH" equiv-text="this.document().title"/>&quot;</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1288</context>
+          <context context-type="linenumber">1345</context>
         </context-group>
       </trans-unit>
       <trans-unit id="448882439049417053" datatype="html">
         <source>Error saving document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1343</context>
+          <context context-type="linenumber">1400</context>
         </context-group>
       </trans-unit>
       <trans-unit id="8410796510716511826" datatype="html">
         <source>Do you really want to move the document &quot;<x id="PH" equiv-text="this.document().title"/>&quot; to the trash?</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1376</context>
+          <context context-type="linenumber">1433</context>
         </context-group>
       </trans-unit>
       <trans-unit id="282586936710748252" datatype="html">
         <source>Documents can be restored prior to permanent deletion.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1377</context>
+          <context context-type="linenumber">1434</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-list/bulk-editor/bulk-editor.component.ts</context>
@@ -8818,14 +8869,14 @@
         <source>Error deleting document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1398</context>
+          <context context-type="linenumber">1455</context>
         </context-group>
       </trans-unit>
       <trans-unit id="619486176823357521" datatype="html">
         <source>Reprocess confirm</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1418</context>
+          <context context-type="linenumber">1475</context>
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-list/bulk-editor/bulk-editor.component.ts</context>
@@ -8836,102 +8887,102 @@
         <source>This operation will permanently recreate the archive file for this document.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1419</context>
+          <context context-type="linenumber">1476</context>
         </context-group>
       </trans-unit>
       <trans-unit id="302054111564709516" datatype="html">
         <source>The archive file will be re-generated with the current settings.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1420</context>
+          <context context-type="linenumber">1477</context>
         </context-group>
       </trans-unit>
       <trans-unit id="4700389117298802932" datatype="html">
         <source>Reprocess operation for &quot;<x id="PH" equiv-text="this.document().title"/>&quot; will begin in the background.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1433</context>
+          <context context-type="linenumber">1490</context>
         </context-group>
       </trans-unit>
       <trans-unit id="4409560272830824468" datatype="html">
         <source>Error executing operation</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1444</context>
+          <context context-type="linenumber">1501</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6030453331794586802" datatype="html">
         <source>Error downloading document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1508</context>
+          <context context-type="linenumber">1565</context>
         </context-group>
       </trans-unit>
       <trans-unit id="4458954481601077369" datatype="html">
         <source>Page Fit</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1586</context>
+          <context context-type="linenumber">1643</context>
         </context-group>
       </trans-unit>
       <trans-unit id="4663705961777238777" datatype="html">
         <source>PDF edit operation for &quot;<x id="PH" equiv-text="this.document().title"/>&quot; will begin in the background.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1829</context>
+          <context context-type="linenumber">1886</context>
         </context-group>
       </trans-unit>
       <trans-unit id="9043972994040261999" datatype="html">
         <source>Error executing PDF edit operation</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1841</context>
+          <context context-type="linenumber">1898</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6172690334763056188" datatype="html">
         <source>Please enter the current password before attempting to remove it.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1852</context>
+          <context context-type="linenumber">1909</context>
         </context-group>
       </trans-unit>
       <trans-unit id="968660764814228922" datatype="html">
         <source>Password removal operation for &quot;<x id="PH" equiv-text="this.document().title"/>&quot; will begin in the background.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1886</context>
+          <context context-type="linenumber">1943</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2282118435712883014" datatype="html">
         <source>Error executing password removal operation</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1900</context>
+          <context context-type="linenumber">1957</context>
         </context-group>
       </trans-unit>
       <trans-unit id="3740891324955700797" datatype="html">
         <source>Print failed.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1950</context>
+          <context context-type="linenumber">2007</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6457245677384603573" datatype="html">
         <source>Error loading document for printing.</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">1959</context>
+          <context context-type="linenumber">2016</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6085793215710522488" datatype="html">
         <source>An error occurred loading tiff: <x id="PH" equiv-text="err.toString()"/></source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">2042</context>
+          <context context-type="linenumber">2099</context>
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         <context-group purpose="location">
           <context context-type="sourcefile">src/app/components/document-detail/document-detail.component.ts</context>
-          <context context-type="linenumber">2048</context>
+          <context context-type="linenumber">2105</context>
         </context-group>
       </trans-unit>
       <trans-unit id="4958946940233632319" datatype="html">
@@ -12290,25 +12341,6 @@
           <context context-type="linenumber">16</context>
         </context-group>
       </trans-unit>
-      <trans-unit id="159901853873315050" datatype="html">
-        <source>Unsaved Changes</source>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/guards/dirty-form.guard.ts</context>
-          <context context-type="linenumber">15</context>
-        </context-group>
-        <context-group purpose="location">
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-          <context context-type="linenumber">27</context>
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-        <context-group purpose="location">
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-          <context context-type="linenumber">135</context>
-        </context-group>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">162</context>
-        </context-group>
-      </trans-unit>
       <trans-unit id="2573823578527613511" datatype="html">
         <source>You have unsaved changes.</source>
         <context-group purpose="location">
@@ -12317,7 +12349,7 @@
         </context-group>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">163</context>
+          <context context-type="linenumber">171</context>
         </context-group>
       </trans-unit>
       <trans-unit id="3305084982600522070" datatype="html">
@@ -12457,28 +12489,28 @@
         <source>You have unsaved changes to the document</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">137</context>
+          <context context-type="linenumber">145</context>
         </context-group>
       </trans-unit>
       <trans-unit id="2089045849587358256" datatype="html">
         <source>Are you sure you want to close this document?</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">141</context>
+          <context context-type="linenumber">149</context>
         </context-group>
       </trans-unit>
       <trans-unit id="6755718693176327396" datatype="html">
         <source>Are you sure you want to close all documents?</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">164</context>
+          <context context-type="linenumber">172</context>
         </context-group>
       </trans-unit>
       <trans-unit id="4215561719980781894" datatype="html">
         <source>Close documents</source>
         <context-group purpose="location">
           <context context-type="sourcefile">src/app/services/open-documents.service.ts</context>
-          <context context-type="linenumber">166</context>
+          <context context-type="linenumber">174</context>
         </context-group>
       </trans-unit>
       <trans-unit id="1206520795340730278" datatype="html">

src-ui/src/app/components/document-detail/document-detail.component.spec.ts

@@ -28,8 +28,9 @@ import { Subject, of, throwError } from 'rxjs'
 import { routes } from 'src/app/app-routing.module'
 import { Correspondent } from 'src/app/data/correspondent'
 import { CustomFieldDataType } from 'src/app/data/custom-field'
+import { CustomFieldInstance } from 'src/app/data/custom-field-instance'
 import { DataType } from 'src/app/data/datatype'
-import { Document } from 'src/app/data/document'
+import { Document, DocumentVersionInfo } from 'src/app/data/document'
 import { DocumentType } from 'src/app/data/document-type'
 import {
   FILTER_CORRESPONDENT,
@@ -100,13 +101,18 @@ const doc: Document = {
   custom_fields: [
     {
       field: 0,
-      document: 3,
-      created: new Date(),
       value: 'custom foo bar',
     },
-  ],
+  ] as CustomFieldInstance[],
 }
 
+// Newest first, as the API returns them: 12 is the latest, 3 is the root
+const docVersions: DocumentVersionInfo[] = [
+  { id: 12, is_root: false },
+  { id: 10, is_root: false },
+  { id: doc.id, is_root: true },
+]
+
 const customFields = [
   {
     id: 0,
@@ -2045,6 +2051,208 @@ describe('DocumentDetailComponent', () => {
     expect(saveSpy).toHaveBeenCalled()
   })
 
+  it('selectVersion should use the version content as the baseline and ignore stale responses', () => {
+    initNormally()
+    const version10Content = new Subject<Document>()
+    jest
+      .spyOn(documentService, 'get')
+      .mockReturnValueOnce(version10Content)
+      .mockReturnValueOnce(of({ content: 'version 12 content' } as Document))
+    const version10Metadata = new Subject<any>()
+    jest
+      .spyOn(documentService, 'getMetadata')
+      .mockReturnValueOnce(version10Metadata)
+      .mockReturnValueOnce(of({ lang: 'de' }))
+
+    component.selectVersion(10)
+    component.selectVersion(12)
+    version10Content.next({ content: 'version 10 content' } as Document)
+    version10Metadata.next({ lang: 'en' })
+
+    expect(component.documentForm.get('content').value).toEqual(
+      'version 12 content'
+    )
+    expect(component.store.value.content).toEqual('version 12 content')
+    expect(component.metadata().lang).toEqual('de')
+    expect(
+      httpTestingController.expectOne(component.previewUrl()).cancelled
+    ).toBeFalsy()
+    expect(
+      httpTestingController.match((req) => req.url.includes('version=10'))[0]
+        ?.cancelled
+    ).toBeTruthy()
+  })
+
+  it('should confirm before discarding unsaved content edits when switching versions', () => {
+    initNormally()
+    component.document().versions = docVersions
+    jest
+      .spyOn(documentService, 'get')
+      .mockImplementation((id, versionID) =>
+        of({ content: `version ${versionID} content` } as Document)
+      )
+    let openModal: NgbModalRef
+    modalService.activeInstances.subscribe((modals) => (openModal = modals[0]))
+    const modalSpy = jest.spyOn(modalService, 'open')
+
+    // shared fields carry over between versions, so no confirmation
+    component.documentForm.get('title').setValue('Edited title')
+    component.documentForm.get('title').markAsDirty()
+    component.documentForm.get('content').markAsDirty()
+    component.onVersionSelected(12)
+    expect(modalSpy).not.toHaveBeenCalled()
+    expect(component.selectedVersionId()).toEqual(12)
+
+    component.documentForm.get('content').setValue('edited content')
+    component.documentForm.get('content').markAsDirty()
+    component.onVersionSelected(12) // already selected, nothing to do
+    expect(modalSpy).not.toHaveBeenCalled()
+    component.onVersionSelected(10)
+    expect(modalSpy).toHaveBeenCalledWith(
+      ConfirmDialogComponent,
+      expect.anything()
+    )
+    openModal.componentInstance.cancel()
+    expect(component.selectedVersionId()).toEqual(12)
+    expect(component.documentForm.get('content').value).toEqual(
+      'edited content'
+    )
+
+    component.onVersionSelected(10)
+    openModal.componentInstance.confirmClicked.emit()
+    expect(component.selectedVersionId()).toEqual(10)
+    expect(component.documentForm.get('content').value).toEqual(
+      'version 10 content'
+    )
+    expect(component.documentForm.get('content').dirty).toBeFalsy()
+    expect(component.documentForm.get('title').value).toEqual('Edited title')
+  })
+
+  it('should save unsaved content edits to the current version before switching, and stay if that fails', () => {
+    initNormally()
+    component.document().versions = docVersions
+    component.selectedVersionId.set(12)
+    jest
+      .spyOn(documentService, 'get')
+      .mockReturnValue(of({ content: 'version 10 content' } as Document))
+    const savedDoc = new Subject<Document>()
+    const patchSpy = jest
+      .spyOn(documentService, 'patch')
+      .mockReturnValueOnce(throwError(() => new Error('failed to save')))
+      .mockReturnValueOnce(savedDoc)
+    const modalSpy = jest.spyOn(modalService, 'open')
+    component.documentForm.get('content').setValue('edited content')
+    component.documentForm.get('content').markAsDirty()
+
+    component.onVersionSelected(10)
+    let modal: NgbModalRef = modalSpy.mock.results[0].value
+    const closeSpy = jest.spyOn(modal, 'close')
+    modal.componentInstance.alternativeClicked.emit()
+    expect(closeSpy).toHaveBeenCalled()
+    expect(component.selectedVersionId()).toEqual(12)
+    expect(component.documentForm.get('content').value).toEqual(
+      'edited content'
+    )
+
+    component.onVersionSelected(10)
+    modal = modalSpy.mock.results[1].value
+    modal.componentInstance.alternativeClicked.emit()
+    expect(patchSpy).toHaveBeenLastCalledWith(
+      expect.objectContaining({ content: 'edited content' }),
+      12
+    )
+    component.onVersionSelected(doc.id) // ignored while saving
+    expect(modalSpy).toHaveBeenCalledTimes(2)
+    savedDoc.next(doc)
+    expect(component.selectedVersionId()).toEqual(10)
+    expect(component.documentForm.get('content').value).toEqual(
+      'version 10 content'
+    )
+  })
+
+  it('should switch without confirmation when the selected version was deleted, even while saving', () => {
+    initNormally()
+    component.document().versions = docVersions
+    component.selectedVersionId.set(10)
+    jest
+      .spyOn(documentService, 'get')
+      .mockReturnValue(of({ content: 'version 12 content' } as Document))
+    const modalSpy = jest.spyOn(modalService, 'open')
+    component.documentForm.get('content').setValue('edited content')
+    component.documentForm.get('content').markAsDirty()
+    component.networkActive.set(true)
+
+    // the version dropdown emits this after deleting the selected version
+    component.onVersionsUpdated(docVersions.filter((v) => v.id !== 10))
+    component.onVersionSelected(12)
+
+    expect(modalSpy).not.toHaveBeenCalled()
+    expect(component.selectedVersionId()).toEqual(12)
+    expect(component.documentForm.get('content').value).toEqual(
+      'version 12 content'
+    )
+  })
+
+  it('should restore the selected version and its unsaved content when returning to a document', () => {
+    initNormally()
+    const openDoc = component.document()
+    openDoc.versions = docVersions
+    jest.spyOn(openDocumentsService, 'getOpenDocument').mockReturnValue(openDoc)
+    jest
+      .spyOn(documentService, 'get')
+      .mockImplementation((id, versionID) =>
+        of(
+          (versionID
+            ? { content: `version ${versionID} content` }
+            : { ...doc, versions: docVersions }) as Document
+        )
+      )
+    component.selectVersion(10)
+    // an edit that happens to match the latest version's content
+    component.documentForm.get('content').setValue(doc.content)
+    openDoc.__changedFields = ['content']
+
+    component['loadDocument'](doc.id)
+
+    expect(component.selectedVersionId()).toEqual(10)
+    expect(component.documentForm.get('content').value).toEqual(doc.content)
+    expect(openDocumentsService.isDirty(openDoc)).toBeTruthy()
+    const patchSpy = jest
+      .spyOn(documentService, 'patch')
+      .mockReturnValue(of(doc))
+    component.save()
+    expect(patchSpy).toHaveBeenCalledWith(
+      expect.objectContaining({ content: doc.content }),
+      10
+    )
+  })
+
+  it('should fall back to the latest version when the remembered version no longer exists', () => {
+    initNormally()
+    const openDoc = component.document()
+    openDoc.versions = docVersions
+    jest.spyOn(openDocumentsService, 'getOpenDocument').mockReturnValue(openDoc)
+    jest.spyOn(documentService, 'get').mockImplementation((id, versionID) =>
+      of(
+        (versionID
+          ? { content: `version ${versionID} content` }
+          : {
+              ...doc,
+              content: 'version 12 content',
+              versions: docVersions.filter((v) => v.id !== 10),
+            }) as Document
+      )
+    )
+    component.selectVersion(10)
+
+    component['loadDocument'](doc.id)
+
+    expect(component.selectedVersionId()).toEqual(12)
+    expect(component.documentForm.get('content').value).toEqual(
+      'version 12 content'
+    )
+  })
+
   it('createDisabled should return true if the user does not have permission to add the specified data type', () => {
     currentUserCan = false
     expect(component.createDisabled(DataType.Correspondent)).toBeTruthy()

src-ui/src/app/components/document-detail/document-detail.component.ts

@@ -98,8 +98,8 @@ import { ISODateAdapter } from 'src/app/utils/ngb-iso-date-adapter'
 import * as UTIF from 'utif'
 import { DocumentDetailFieldID } from '../admin/settings/settings.component'
 import { ConfirmDialogComponent } from '../common/confirm-dialog/confirm-dialog.component'
-import { ReprocessConfirmDialogComponent } from '../common/confirm-dialog/reprocess-confirm-dialog/reprocess-confirm-dialog.component'
 import { PasswordRemovalConfirmDialogComponent } from '../common/confirm-dialog/password-removal-confirm-dialog/password-removal-confirm-dialog.component'
+import { ReprocessConfirmDialogComponent } from '../common/confirm-dialog/reprocess-confirm-dialog/reprocess-confirm-dialog.component'
 import { CustomFieldsDropdownComponent } from '../common/custom-fields-dropdown/custom-fields-dropdown.component'
 import { CorrespondentEditDialogComponent } from '../common/edit-dialog/correspondent-edit-dialog/correspondent-edit-dialog.component'
 import { DocumentTypeEditDialogComponent } from '../common/edit-dialog/document-type-edit-dialog/document-type-edit-dialog.component'
@@ -304,6 +304,7 @@ export class DocumentDetailComponent
   isDirty$: Observable<boolean>
   unsubscribeNotifier: Subject<any> = new Subject()
   docChangeNotifier: Subject<any> = new Subject()
+  versionChangeNotifier: Subject<void> = new Subject()
   private incomingUpdateModal: NgbModalRef
   private pendingIncomingUpdate: IncomingDocumentUpdate
   private lastLocalSaveModified: string | null = null
@@ -417,7 +418,8 @@ export class DocumentDetailComponent
       .pipe(
         first(),
         takeUntil(this.unsubscribeNotifier),
-        takeUntil(this.docChangeNotifier)
+        takeUntil(this.docChangeNotifier),
+        takeUntil(this.versionChangeNotifier)
       )
       .subscribe({
         next: (result) => {
@@ -533,7 +535,8 @@ export class DocumentDetailComponent
       .pipe(
         first(),
         takeUntil(this.unsubscribeNotifier),
-        takeUntil(this.docChangeNotifier)
+        takeUntil(this.docChangeNotifier),
+        takeUntil(this.versionChangeNotifier)
       )
       .subscribe({
         next: (res) => this.previewText.set(res.toString()),
@@ -595,6 +598,13 @@ export class DocumentDetailComponent
             openDocument.duplicate_documents = doc.duplicate_documents
             this.openDocumentService.save()
           }
+          // use server versions
+          if (openDocument) {
+            openDocument.versions = doc.versions
+            if (!openDocument.__changedFields?.includes('content')) {
+              openDocument.content = doc.content
+            }
+          }
           let useDoc = openDocument || doc
           if (openDocument && forceRemote) {
             Object.assign(openDocument, doc)
@@ -642,7 +652,14 @@ export class DocumentDetailComponent
               this.documentForm.patchValue({ title: titleValue })
               this.documentForm.get('title').markAsDirty()
             })
+          const keepContentEdits =
+            useDoc.__selectedVersionId === this.selectedVersionId() &&
+            !!useDoc.__changedFields?.includes('content')
           this.setupDirtyTracking(useDoc, doc)
+          // Maybe load the stored version
+          if (useDoc.__selectedVersionId) {
+            this.selectVersion(this.selectedVersionId(), keepContentEdits)
+          }
         },
       })
   }
@@ -903,9 +920,11 @@ export class DocumentDetailComponent
 
   updateComponent(doc: Document) {
     this.document.set(doc)
-    // Default selected version is the newest version, which the API returns first
+    // Load the selected version, or default to API first (newest)
     const versions = doc.versions ?? []
-    this.selectedVersionId.set(versions.length ? versions[0].id : doc.id)
+    const selectedVersion =
+      versions.find((v) => v.id === doc.__selectedVersionId) ?? versions[0]
+    this.selectedVersionId.set(selectedVersion?.id ?? doc.id)
     this.previewLoaded.set(false)
     this.requiresPassword = false
     this.updateFormForCustomFields()
@@ -940,8 +959,12 @@ export class DocumentDetailComponent
   }
 
   // Update file preview and download target to a specific version (by document id)
-  selectVersion(versionId: number) {
+  selectVersion(versionId: number, keepContentEdits: boolean = false) {
+    this.versionChangeNotifier.next()
     this.selectedVersionId.set(versionId)
+    // remember so the version can be restored when returning to the document
+    this.document().__selectedVersionId = versionId
+    this.openDocumentService.save()
     this.previewLoaded.set(false)
     this.previewUrl.set(
       this.documentsService.getPreviewUrl(
@@ -963,20 +986,20 @@ export class DocumentDetailComponent
       .pipe(
         first(),
         takeUntil(this.unsubscribeNotifier),
-        takeUntil(this.docChangeNotifier)
+        takeUntil(this.docChangeNotifier),
+        takeUntil(this.versionChangeNotifier)
       )
       .subscribe({
         next: (doc) => {
           const content = doc?.content ?? ''
-          this.document().content = content
-          this.documentForm.patchValue(
-            {
-              content,
-            },
-            {
-              emitEvent: false,
-            }
-          )
+          if (keepContentEdits) {
+            this.store.next({ ...this.store.value, content })
+          } else {
+            // Update in-place and avoid the debounce wait
+            this.store.value.content = content
+            this.documentForm.patchValue({ content })
+            this.documentForm.get('content').markAsPristine()
+          }
         },
         error: (error) => {
           this.toastService.showError(
@@ -991,7 +1014,8 @@ export class DocumentDetailComponent
       .pipe(
         first(),
         takeUntil(this.unsubscribeNotifier),
-        takeUntil(this.docChangeNotifier)
+        takeUntil(this.docChangeNotifier),
+        takeUntil(this.versionChangeNotifier)
       )
       .subscribe({
         next: (res) => this.previewText.set(res.toString()),
@@ -1005,7 +1029,39 @@ export class DocumentDetailComponent
   }
 
   onVersionSelected(versionId: number) {
-    this.selectVersion(versionId)
+    if (versionId === this.selectedVersionId()) return
+    // Bail if the selected version was just deleted.
+    const selectedVersionExists = this.document()?.versions?.some(
+      (v) => v.id === this.selectedVersionId()
+    )
+    if (this.networkActive() && selectedVersionExists) return
+    if (
+      !selectedVersionExists ||
+      this.documentForm.get('content').value === this.store.value.content
+    ) {
+      this.selectVersion(versionId)
+      return
+    }
+
+    // Confirm any unsaved content changes
+    const modal = this.modalService.open(ConfirmDialogComponent, {
+      backdrop: 'static',
+    })
+    modal.componentInstance.title = $localize`Unsaved Changes`
+    modal.componentInstance.messageBold = $localize`You have unsaved changes to the content of this version.`
+    modal.componentInstance.message = $localize`Switching versions will discard them.`
+    modal.componentInstance.btnClass = 'btn-secondary'
+    modal.componentInstance.btnCaption = $localize`Discard and switch`
+    modal.componentInstance.alternativeBtnClass = 'btn-primary'
+    modal.componentInstance.alternativeBtnCaption = $localize`Save and switch`
+    modal.componentInstance.confirmClicked.pipe(first()).subscribe(() => {
+      modal.close()
+      this.selectVersion(versionId)
+    })
+    modal.componentInstance.alternativeClicked.pipe(first()).subscribe(() => {
+      modal.close()
+      this.save(false, () => this.selectVersion(versionId))
+    })
   }
 
   onVersionsUpdated(versions: DocumentVersionInfo[]) {
@@ -1233,7 +1289,7 @@ export class DocumentDetailComponent
     return changes
   }
 
-  save(close: boolean = false) {
+  save(close: boolean = false, savedCallback: () => void = null) {
     this.networkActive.set(true)
     ;(document.activeElement as HTMLElement)?.dispatchEvent(new Event('change'))
     this.documentsService
@@ -1266,6 +1322,7 @@ export class DocumentDetailComponent
             this.flushPendingIncomingUpdate()
           }
           this.savedViewService.maybeRefreshDocumentCounts()
+          savedCallback?.()
         },
         error: (error) => {
           this.networkActive.set(false)

src-ui/src/app/data/document.ts

@@ -167,6 +167,7 @@ export interface Document extends ObjectWithPermissions {
 
   // Frontend only
   __changedFields?: string[]
+  __selectedVersionId?: number
 }
 
 export interface DocumentVersionInfo {

src-ui/src/app/services/open-documents.service.spec.ts

@@ -221,6 +221,25 @@ describe('OpenDocumentsService', () => {
     expect(openDocumentsService.getOpenDocuments()).toHaveLength(1)
   })
 
+  it('should refresh documents in place and keep unsaved edits', () => {
+    const openDoc = { ...documents[0] }
+    subscriptions.push(openDocumentsService.openDocument(openDoc).subscribe())
+    openDoc.title = 'Unsaved title'
+    openDocumentsService.setDirty(openDoc, true, { title: openDoc.title })
+
+    openDocumentsService.refreshDocument(openDoc.id)
+    httpTestingController
+      .expectOne(
+        `${environment.apiBaseUrl}documents/${openDoc.id}/?full_perms=true`
+      )
+      .flush({ ...documents[0], tags: [4] })
+
+    const refreshed = openDocumentsService.getOpenDocument(openDoc.id)
+    expect(refreshed).toBe(openDoc)
+    expect(refreshed.title).toEqual('Unsaved title')
+    expect(refreshed.tags).toEqual([4])
+  })
+
   it('should handle error on refresh documents', () => {
     subscriptions.push(
       openDocumentsService.openDocument(documents[1]).subscribe()

src-ui/src/app/services/open-documents.service.ts

@@ -50,7 +50,15 @@ export class OpenDocumentsService {
     if (index > -1) {
       this.documentService.get(id).subscribe({
         next: (doc) => {
-          this.openDocuments[index] = doc
+          const openDoc = this.openDocuments.find((d) => d.id == id)
+          if (!openDoc) return
+          const unsavedEdits = Object.fromEntries(
+            (openDoc.__changedFields ?? []).map((field) => [
+              field,
+              openDoc[field],
+            ])
+          )
+          Object.assign(openDoc, doc, unsavedEdits)
           this.save()
         },
         error: () => {

src/documents/tests/test_api_chat.py

@@ -38,6 +38,42 @@ class TestChatStreamingViewInputValidation(APITestCase):
             )
         assert resp.status_code == status.HTTP_400_BAD_REQUEST
 
+    def test_answer_is_not_compressed(self) -> None:
+        """
+        GIVEN:
+            - A client that accepts compressed responses
+        WHEN:
+            - It asks the chat endpoint a question
+        THEN:
+            - The answer is streamed unencoded, chunk for chunk
+
+        The stream compressors buffer, so a compressed answer arrives in one
+        piece. The view cannot opt out by flagging the request: DRF's request
+        wrapper proxies reads but keeps writes to itself, so the flag never
+        reaches the Django request the middleware sees.
+        """
+        chunks = [f"token{i} " for i in range(40)]
+        with (
+            mock.patch(
+                "documents.views.AIConfig",
+                return_value=self._mock_ai_enabled(),
+            ),
+            mock.patch(
+                "documents.views.stream_chat_with_documents",
+                return_value=iter(chunks),
+            ),
+        ):
+            resp = self.client.post(
+                "/api/documents/chat/",
+                {"q": "What is in my archive?"},
+                format="json",
+                HTTP_ACCEPT_ENCODING="gzip, deflate, br, zstd",
+            )
+
+        assert resp.status_code == status.HTTP_200_OK
+        assert not resp.has_header("Content-Encoding")
+        assert list(resp.streaming_content) == [c.encode() for c in chunks]
+
     def test_missing_question_is_rejected(self) -> None:
         with mock.patch(
             "documents.views.AIConfig",

src/documents/tests/test_regex.py

@@ -1,5 +1,6 @@
 import pytest
 import regex
+from django.conf import settings
 from pytest_mock import MockerFixture
 
 from documents.regex import safe_regex_finditer
@@ -9,6 +10,12 @@ from documents.regex import safe_regex_sub
 from documents.regex import validate_regex_pattern
 
 
+def test_regex_timeout_uses_configured_setting() -> None:
+    from documents.regex import REGEX_TIMEOUT_SECONDS
+
+    assert REGEX_TIMEOUT_SECONDS == settings.MATCH_REGEX_TIMEOUT_SECONDS
+
+
 class TestValidateRegexPattern:
     def test_valid_pattern(self) -> None:
         validate_regex_pattern(r"\d+")

src/documents/views.py

@@ -2380,7 +2380,6 @@ class ChatStreamingView(GenericAPIView[Any]):
     serializer_class = ChatStreamingSerializer
 
     def post(self, request, *args, **kwargs):
-        request.compress_exempt = True
         ai_config = AIConfig()
         if not ai_config.ai_enabled:
             return HttpResponseBadRequest("AI is required for this feature")

src/locale/en_US/LC_MESSAGES/django.po

@@ -2,7 +2,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: paperless-ngx\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-09-10 19:39+0000\n"
+"POT-Creation-Date: 2026-09-11 15:47+0000\n"
 "PO-Revision-Date: 2022-02-17 04:17\n"
 "Last-Translator: \n"
 "Language-Team: English\n"
@@ -1632,7 +1632,7 @@ msgid "workflow runs"
 msgstr ""
 
 #: documents/serialisers.py:525 documents/serialisers.py:882
-#: documents/serialisers.py:2849 documents/views.py:318 documents/views.py:2694
+#: documents/serialisers.py:2849 documents/views.py:318 documents/views.py:2693
 #: paperless_mail/serialisers.py:156
 msgid "Insufficient permissions."
 msgstr ""
@@ -1673,7 +1673,7 @@ msgstr ""
 msgid "Duplicate document identifiers are not allowed."
 msgstr ""
 
-#: documents/serialisers.py:2935 documents/views.py:4701
+#: documents/serialisers.py:2935 documents/views.py:4700
 #, python-format
 msgid "Documents not found: %(ids)s"
 msgstr ""
@@ -1941,7 +1941,7 @@ msgstr ""
 msgid "Unable to parse URI {value}"
 msgstr ""
 
-#: documents/views.py:311 documents/views.py:2691
+#: documents/views.py:311 documents/views.py:2690
 msgid "Invalid more_like_id"
 msgstr ""
 
@@ -1957,24 +1957,24 @@ msgstr ""
 msgid "AI backend rejected the request. Check logs for details."
 msgstr ""
 
-#: documents/views.py:2516 documents/views.py:2837
+#: documents/views.py:2515 documents/views.py:2836
 msgid "Specify only one of text, title_search, query, or more_like_id."
 msgstr ""
 
-#: documents/views.py:4714
+#: documents/views.py:4713
 #, python-format
 msgid "Insufficient permissions to share document %(id)s."
 msgstr ""
 
-#: documents/views.py:4760
+#: documents/views.py:4759
 msgid "Bundle is already being processed."
 msgstr ""
 
-#: documents/views.py:4824
+#: documents/views.py:4823
 msgid "The share link bundle is still being prepared. Please try again later."
 msgstr ""
 
-#: documents/views.py:4838
+#: documents/views.py:4837
 msgid "The share link bundle is unavailable."
 msgstr ""
 
@@ -2258,151 +2258,151 @@ msgstr ""
 msgid "paperless application settings"
 msgstr ""
 
-#: paperless/settings/__init__.py:569
+#: paperless/settings/__init__.py:556
 msgid "English (US)"
 msgstr ""
 
-#: paperless/settings/__init__.py:570
+#: paperless/settings/__init__.py:557
 msgid "Arabic"
 msgstr ""
 
-#: paperless/settings/__init__.py:571
+#: paperless/settings/__init__.py:558
 msgid "Afrikaans"
 msgstr ""
 
-#: paperless/settings/__init__.py:572
+#: paperless/settings/__init__.py:559
 msgid "Belarusian"
 msgstr ""
 
-#: paperless/settings/__init__.py:573
+#: paperless/settings/__init__.py:560
 msgid "Bulgarian"
 msgstr ""
 
-#: paperless/settings/__init__.py:574
+#: paperless/settings/__init__.py:561
 msgid "Catalan"
 msgstr ""
 
-#: paperless/settings/__init__.py:575
+#: paperless/settings/__init__.py:562
 msgid "Czech"
 msgstr ""
 
-#: paperless/settings/__init__.py:576
+#: paperless/settings/__init__.py:563
 msgid "Danish"
 msgstr ""
 
-#: paperless/settings/__init__.py:577
+#: paperless/settings/__init__.py:564
 msgid "German"
 msgstr ""
 
-#: paperless/settings/__init__.py:578
+#: paperless/settings/__init__.py:565
 msgid "Greek"
 msgstr ""
 
-#: paperless/settings/__init__.py:579
+#: paperless/settings/__init__.py:566
 msgid "English (GB)"
 msgstr ""
 
-#: paperless/settings/__init__.py:580
+#: paperless/settings/__init__.py:567
 msgid "Spanish"
 msgstr ""
 
-#: paperless/settings/__init__.py:581
+#: paperless/settings/__init__.py:568
 msgid "Persian"
 msgstr ""
 
-#: paperless/settings/__init__.py:582
+#: paperless/settings/__init__.py:569
 msgid "Finnish"
 msgstr ""
 
-#: paperless/settings/__init__.py:583
+#: paperless/settings/__init__.py:570
 msgid "French"
 msgstr ""
 
-#: paperless/settings/__init__.py:584
+#: paperless/settings/__init__.py:571
 msgid "Hungarian"
 msgstr ""
 
-#: paperless/settings/__init__.py:585
+#: paperless/settings/__init__.py:572
 msgid "Indonesian"
 msgstr ""
 
-#: paperless/settings/__init__.py:586
+#: paperless/settings/__init__.py:573
 msgid "Italian"
 msgstr ""
 
-#: paperless/settings/__init__.py:587
+#: paperless/settings/__init__.py:574
 msgid "Japanese"
 msgstr ""
 
-#: paperless/settings/__init__.py:588
+#: paperless/settings/__init__.py:575
 msgid "Korean"
 msgstr ""
 
-#: paperless/settings/__init__.py:589
+#: paperless/settings/__init__.py:576
 msgid "Luxembourgish"
 msgstr ""
 
-#: paperless/settings/__init__.py:590
+#: paperless/settings/__init__.py:577
 msgid "Norwegian"
 msgstr ""
 
-#: paperless/settings/__init__.py:591
+#: paperless/settings/__init__.py:578
 msgid "Dutch"
 msgstr ""
 
-#: paperless/settings/__init__.py:592
+#: paperless/settings/__init__.py:579
 msgid "Polish"
 msgstr ""
 
-#: paperless/settings/__init__.py:593
+#: paperless/settings/__init__.py:580
 msgid "Portuguese (Brazil)"
 msgstr ""
 
-#: paperless/settings/__init__.py:594
+#: paperless/settings/__init__.py:581
 msgid "Portuguese"
 msgstr ""
 
-#: paperless/settings/__init__.py:595
+#: paperless/settings/__init__.py:582
 msgid "Romanian"
 msgstr ""
 
-#: paperless/settings/__init__.py:596
+#: paperless/settings/__init__.py:583
 msgid "Russian"
 msgstr ""
 
-#: paperless/settings/__init__.py:597
+#: paperless/settings/__init__.py:584
 msgid "Slovak"
 msgstr ""
 
-#: paperless/settings/__init__.py:598
+#: paperless/settings/__init__.py:585
 msgid "Slovenian"
 msgstr ""
 
-#: paperless/settings/__init__.py:599
+#: paperless/settings/__init__.py:586
 msgid "Serbian"
 msgstr ""
 
-#: paperless/settings/__init__.py:600
+#: paperless/settings/__init__.py:587
 msgid "Swedish"
 msgstr ""
 
-#: paperless/settings/__init__.py:601
+#: paperless/settings/__init__.py:588
 msgid "Turkish"
 msgstr ""
 
-#: paperless/settings/__init__.py:602
+#: paperless/settings/__init__.py:589
 msgid "Ukrainian"
 msgstr ""
 
-#: paperless/settings/__init__.py:603
+#: paperless/settings/__init__.py:590
 msgid "Vietnamese"
 msgstr ""
 
-#: paperless/settings/__init__.py:604
+#: paperless/settings/__init__.py:591
 msgid "Chinese Simplified"
 msgstr ""
 
-#: paperless/settings/__init__.py:605
+#: paperless/settings/__init__.py:592
 msgid "Chinese Traditional"
 msgstr ""
 

src/paperless/middleware.py

@@ -1,8 +1,23 @@
+from compression_middleware.middleware import CompressionMiddleware
 from django.conf import settings
 
 from paperless import version
 
 
+class StreamAwareCompressionMiddleware(CompressionMiddleware):
+    """
+    Bypasses compression for server-sent streams (text/event-stream).
+
+    See https://github.com/friedelwolff/django-compression-middleware/pull/7
+    """
+
+    def process_response(self, request, response):
+        content_type = response.headers.get("Content-Type", "")
+        if content_type.startswith("text/event-stream"):
+            return response
+        return super().process_response(request, response)
+
+
 class ApiVersionMiddleware:
     def __init__(self, get_response):
         self.get_response = get_response

src/paperless/settings/__init__.py

@@ -10,7 +10,6 @@ from pathlib import Path
 from typing import Final
 from urllib.parse import urlparse
 
-from compression_middleware.middleware import CompressionMiddleware
 from django.core.exceptions import ImproperlyConfigured
 from django.utils.translation import gettext_lazy as _
 from dotenv import load_dotenv
@@ -103,6 +102,10 @@ CLASSIFIER_MATCH_THRESHOLD: Final[float] = get_float_from_env(
     "PAPERLESS_CLASSIFIER_MATCH_THRESHOLD",
     0.6,
 )
+MATCH_REGEX_TIMEOUT_SECONDS: Final[float] = get_float_from_env(
+    "PAPERLESS_MATCH_REGEX_TIMEOUT_SECONDS",
+    0.1,
+)
 LLM_INDEX_DIR = DATA_DIR / "llm_index"
 LLM_INDEX_LOCK = LLM_INDEX_DIR / "index.lock"
 # Cross-process read/write lock guarding the LLM index compaction/migration
@@ -201,22 +204,10 @@ MIDDLEWARE = [
     "allauth.account.middleware.AccountMiddleware",
 ]
 
-# Optional to enable compression
+# Optional to enable compression. The subclass leaves server-sent events
+# uncompressed; see paperless.middleware.StreamAwareCompressionMiddleware.
 if get_bool_from_env("PAPERLESS_ENABLE_COMPRESSION", "yes"):  # pragma: no cover
-    MIDDLEWARE.insert(0, "compression_middleware.middleware.CompressionMiddleware")
-
-# Workaround to not compress streaming responses (e.g. chat).
-# See https://github.com/friedelwolff/django-compression-middleware/pull/7
-original_process_response = CompressionMiddleware.process_response
-
-
-def patched_process_response(self, request, response):
-    if getattr(request, "compress_exempt", False):
-        return response
-    return original_process_response(self, request, response)
-
-
-CompressionMiddleware.process_response = patched_process_response
+    MIDDLEWARE.insert(0, "paperless.middleware.StreamAwareCompressionMiddleware")
 
 ROOT_URLCONF = "paperless.urls"
 

src/paperless/tests/test_compression_middleware.py

@@ -0,0 +1,54 @@
+from django.http import HttpResponse
+from django.http import StreamingHttpResponse
+from django.test import RequestFactory
+from django.test import TestCase
+
+from paperless.middleware import StreamAwareCompressionMiddleware
+
+
+class TestStreamAwareCompressionMiddleware(TestCase):
+    def setUp(self) -> None:
+        super().setUp()
+        self.factory = RequestFactory()
+        self.middleware = StreamAwareCompressionMiddleware(lambda request: None)
+
+    def _request(self):
+        return self.factory.get(
+            "/api/documents/chat/",
+            HTTP_ACCEPT_ENCODING="gzip, deflate, br, zstd",
+        )
+
+    def test_event_stream_is_not_compressed(self) -> None:
+        """
+        GIVEN:
+            - A server-sent event response produced chunk by chunk
+        WHEN:
+            - The compression middleware processes it
+        THEN:
+            - It is passed through unencoded, one wire chunk per source chunk
+        """
+        chunks = [f"token{i} ".encode() for i in range(40)]
+        response = StreamingHttpResponse(
+            iter(chunks),
+            content_type="text/event-stream",
+        )
+
+        response = self.middleware.process_response(self._request(), response)
+
+        assert not response.has_header("Content-Encoding")
+        assert list(response.streaming_content) == chunks
+
+    def test_regular_response_is_still_compressed(self) -> None:
+        """
+        GIVEN:
+            - An ordinary response large enough to be worth compressing
+        WHEN:
+            - The compression middleware processes it
+        THEN:
+            - It is compressed as before
+        """
+        response = HttpResponse(b"a" * 5000, content_type="application/json")
+
+        response = self.middleware.process_response(self._request(), response)
+
+        assert response.has_header("Content-Encoding")

src/paperless_ai/client.py

@@ -40,7 +40,6 @@ LLM_SYSTEM_PROMPT = (
 
 # openai-python rejects empty keys since 2.34.0, "fake" is the stand-in from
 # llama-index's own OpenAILike docs https://docs.llamaindex.ai/en/stable/api_reference/llms/openai_like/
-# TODO: remove pending resolution of https://github.com/openai/openai-python/issues/3224
 PLACEHOLDER_API_KEY: Final = "fake"