Merge pull request #1137 from kiwix/catalog_search_without_boolean_operators

Catalog search without support for Xapian boolean operators

src/library.cpp

@@ -645,8 +645,6 @@ Xapian::Query buildXapianQueryFromFilterQuery(const Filter& filter)
   //queryParser.set_stemmer(Xapian::Stem(iso639_3ToXapian(???)));
   //queryParser.set_stemming_strategy(Xapian::QueryParser::STEM_SOME);
   const auto flags = Xapian::QueryParser::FLAG_PHRASE
-                   | Xapian::QueryParser::FLAG_BOOLEAN
-                   | Xapian::QueryParser::FLAG_BOOLEAN_ANY_CASE
                    | Xapian::QueryParser::FLAG_LOVEHATE
                    | Xapian::QueryParser::FLAG_WILDCARD
                    | partialQueryFlag;

test/data/library.xml

@@ -4,7 +4,7 @@
         path="./zimfile_raycharles.zim"
         url="https://github.com/kiwix/libkiwix/raw/master/test/data/zimfile_raycharles.zim"
         title="Ray Charles"
-        description="Wikipedia articles about Ray Charles"
+        description="Wikipedia articles about Ray Charles (not all of them but near to what an average newborn may find more than enough)"
         language="eng"
         creator="Wikipedia"
         publisher="Kiwix"
@@ -22,7 +22,7 @@
         path="./zimfile_raycharles_uncategorized.zim"
         url="https://github.com/kiwix/libkiwix/raw/master/test/data/zimfile_raycharles_uncategorized.zim"
         title="Ray (uncategorized) Charles"
-        description="No category is assigned to this library entry."
+        description="No category is assigned to this library entry (neither adj nor xor was considered a good option)"
         language="rus,eng"
         creator="Wikipedia"
         publisher="Kiwix"
@@ -39,7 +39,7 @@
         path="./zimfile&other.zim"
         url="https://github.com/kiwix/libkiwix/raw/master/test/data/zimfile%26other.zim"
         title="Charles, Ray"
-        description="Wikipedia articles about Ray Charles"
+        description="Wikipedia articles about Ray Charles or why and when one should go to library"
         language="fra"
         creator="Wikipedia"
         publisher="Kiwix"

test/library_server.cpp

@@ -103,7 +103,7 @@ std::string maskVariableOPDSFeedData(std::string s)
 #define _CHARLES_RAY_CATALOG_ENTRY(CONTENT_NAME) CATALOG_ENTRY(  \
   "charlesray",   \
   "Charles, Ray", \
-  "Wikipedia articles about Ray Charles", \
+  "Wikipedia articles about Ray Charles or why and when one should go to library", \
   "fra", \
   "wikipedia_fr_ray_charles",\
   "jazz",\
@@ -120,7 +120,7 @@ std::string maskVariableOPDSFeedData(std::string s)
 #define _RAY_CHARLES_CATALOG_ENTRY(CONTENT_NAME) CATALOG_ENTRY(\
   "raycharles",\
   "Ray Charles",\
-  "Wikipedia articles about Ray Charles",\
+  "Wikipedia articles about Ray Charles (not all of them but near to what an average newborn may find more than enough)",\
   "eng",\
   "wikipedia_en_ray_charles",\
   "wikipedia",\
@@ -139,7 +139,7 @@ std::string maskVariableOPDSFeedData(std::string s)
 #define UNCATEGORIZED_RAY_CHARLES_CATALOG_ENTRY CATALOG_ENTRY(\
   "raycharles_uncategorized",\
   "Ray (uncategorized) Charles",\
-  "No category is assigned to this library entry.",\
+  "No category is assigned to this library entry (neither adj nor xor was considered a good option)",\
   "rus,eng",\
   "wikipedia_ru_ray_charles",\
   "",\
@@ -199,8 +199,8 @@ TEST_F(LibraryServerTest, catalog_search_by_phrase)
     "  <startIndex>0</startIndex>\n"
     "  <itemsPerPage>2</itemsPerPage>\n"
     CATALOG_LINK_TAGS
-    RAY_CHARLES_CATALOG_ENTRY
     CHARLES_RAY_CATALOG_ENTRY
+    RAY_CHARLES_CATALOG_ENTRY
     "</feed>\n"
   );
 }
@@ -218,8 +218,8 @@ TEST_F(LibraryServerTest, catalog_search_by_words)
     "  <startIndex>0</startIndex>\n"
     "  <itemsPerPage>3</itemsPerPage>\n"
     CATALOG_LINK_TAGS
-    RAY_CHARLES_CATALOG_ENTRY
     CHARLES_RAY_CATALOG_ENTRY
+    RAY_CHARLES_CATALOG_ENTRY
     UNCATEGORIZED_RAY_CHARLES_CATALOG_ENTRY
     "</feed>\n"
   );
@@ -239,8 +239,8 @@ TEST_F(LibraryServerTest, catalog_prefix_search)
       "  <startIndex>0</startIndex>\n"
       "  <itemsPerPage>2</itemsPerPage>\n"
       CATALOG_LINK_TAGS
-      RAY_CHARLES_CATALOG_ENTRY
       CHARLES_RAY_CATALOG_ENTRY
+      RAY_CHARLES_CATALOG_ENTRY
       "</feed>\n"
     );
   }
@@ -275,8 +275,8 @@ TEST_F(LibraryServerTest, catalog_search_with_word_exclusion)
     "  <startIndex>0</startIndex>\n"
     "  <itemsPerPage>2</itemsPerPage>\n"
     CATALOG_LINK_TAGS
-    RAY_CHARLES_CATALOG_ENTRY
     CHARLES_RAY_CATALOG_ENTRY
+    RAY_CHARLES_CATALOG_ENTRY
     "</feed>\n"
   );
 }
@@ -331,8 +331,8 @@ TEST_F(LibraryServerTest, catalog_search_by_category)
       "  <startIndex>0</startIndex>\n"
       "  <itemsPerPage>2</itemsPerPage>\n"
       CATALOG_LINK_TAGS
-      RAY_CHARLES_CATALOG_ENTRY
       CHARLES_RAY_CATALOG_ENTRY
+      RAY_CHARLES_CATALOG_ENTRY
       "</feed>\n"
     );
   }
@@ -772,10 +772,171 @@ TEST_F(LibraryServerTest, catalog_v2_entries_filtered_by_search_terms)
     "  <totalResults>2</totalResults>\n"
     "  <startIndex>0</startIndex>\n"
     "  <itemsPerPage>2</itemsPerPage>\n"
+    CHARLES_RAY_CATALOG_ENTRY
     RAY_CHARLES_CATALOG_ENTRY
+    "</feed>\n"
+  );
+}
+
+TEST_F(LibraryServerTest, catalog_v2_entries_filtering_special_queries)
+{
+  {
+  // 'or' doesn't act as a Xapian boolean operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=Or");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=Or")
+    "  <title>Filtered Entries (q=Or)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
     CHARLES_RAY_CATALOG_ENTRY
     "</feed>\n"
   );
+  }
+
+  {
+  // 'and' doesn't act as a Xapian boolean operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=and");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=and")
+    "  <title>Filtered Entries (q=and)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    CHARLES_RAY_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'not' doesn't act as a Xapian boolean operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=not");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=not")
+    "  <title>Filtered Entries (q=not)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    RAY_CHARLES_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'xor' doesn't act as a Xapian boolean operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=xor");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=xor")
+    "  <title>Filtered Entries (q=xor)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    UNCATEGORIZED_RAY_CHARLES_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'or' acts as a Xapian boolean operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=wikipedia%20or%20library");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=wikipedia%20or%20library")
+    "  <title>Filtered Entries (q=wikipedia%20or%20library)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    CHARLES_RAY_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'and' acts as a Xapian boolean operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=wikipedia%20and%20articles");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=wikipedia%20and%20articles")
+    "  <title>Filtered Entries (q=wikipedia%20and%20articles)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    CHARLES_RAY_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'near' doesn't act as a Xapian query operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=near");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=near")
+    "  <title>Filtered Entries (q=near)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    RAY_CHARLES_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'adj' doesn't act as a Xapian query operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=adj");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=adj")
+    "  <title>Filtered Entries (q=adj)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>1</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>1</itemsPerPage>\n"
+    UNCATEGORIZED_RAY_CHARLES_CATALOG_ENTRY
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'near' doesn't act as a Xapian query operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=charles%20near%20why");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=charles%20near%20why")
+    "  <title>Filtered Entries (q=charles%20near%20why)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>0</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>0</itemsPerPage>\n"
+    "</feed>\n"
+  );
+  }
+
+  {
+  // 'adj' doesn't act as a Xapian query operator
+  const auto r = zfs1_->GET("/ROOT%23%3F/catalog/v2/entries?q=charles%20adj%20why");
+  EXPECT_EQ(r->status, 200);
+  EXPECT_EQ(maskVariableOPDSFeedData(r->body),
+    CATALOG_V2_ENTRIES_PREAMBLE("?q=charles%20adj%20why")
+    "  <title>Filtered Entries (q=charles%20adj%20why)</title>\n"
+    "  <updated>YYYY-MM-DDThh:mm:ssZ</updated>\n"
+    "  <totalResults>0</totalResults>\n"
+    "  <startIndex>0</startIndex>\n"
+    "  <itemsPerPage>0</itemsPerPage>\n"
+    "</feed>\n"
+  );
+  }
 }
 
 TEST_F(LibraryServerTest, catalog_v2_entries_filtered_by_language)
@@ -841,8 +1002,8 @@ TEST_F(LibraryServerTest, catalog_v2_entries_filtered_by_category)
       "  <totalResults>2</totalResults>\n"
       "  <startIndex>0</startIndex>\n"
       "  <itemsPerPage>2</itemsPerPage>\n"
-      RAY_CHARLES_CATALOG_ENTRY
       CHARLES_RAY_CATALOG_ENTRY
+      RAY_CHARLES_CATALOG_ENTRY
       "</feed>\n"
     );
   }
@@ -1086,7 +1247,7 @@ TEST_F(LibraryServerTest, no_name_mapper_catalog_v2_individual_entry_access)
   "            <div class=\"book__header\">\n" \
   "                <div id=\"book__title\">Charles, Ray</div>\n" \
   "            </div>\n" \
-  "            <div class=\"book__description\" title=\"Wikipedia articles about Ray Charles\">Wikipedia articles about Ray Charles</div>\n" \
+  "            <div class=\"book__description\" title=\"Wikipedia articles about Ray Charles or why and when one should go to library\">Wikipedia articles about Ray Charles or why and when one should go to library</div>\n" \
   "            </div>\n" \
   "            </a>\n" \
   "            <div class=\"book__meta\">\n" \
@@ -1113,7 +1274,7 @@ TEST_F(LibraryServerTest, no_name_mapper_catalog_v2_individual_entry_access)
   "            <div class=\"book__header\">\n" \
   "                <div id=\"book__title\">Ray Charles</div>\n" \
   "            </div>\n" \
-  "            <div class=\"book__description\" title=\"Wikipedia articles about Ray Charles\">Wikipedia articles about Ray Charles</div>\n" \
+  "            <div class=\"book__description\" title=\"Wikipedia articles about Ray Charles (not all of them but near to what an average newborn may find more than enough)\">Wikipedia articles about Ray Charles (not all of them but near to what an average newborn may find more than enough)</div>\n" \
   "            </div>\n" \
   "            </a>\n" \
   "            <div class=\"book__meta\">\n" \
@@ -1140,7 +1301,7 @@ TEST_F(LibraryServerTest, no_name_mapper_catalog_v2_individual_entry_access)
   "            <div class=\"book__header\">\n" \
   "                <div id=\"book__title\">Ray (uncategorized) Charles</div>\n" \
   "            </div>\n" \
-  "            <div class=\"book__description\" title=\"No category is assigned to this library entry.\">No category is assigned to this library entry.</div>\n" \
+  "            <div class=\"book__description\" title=\"No category is assigned to this library entry (neither adj nor xor was considered a good option)\">No category is assigned to this library entry (neither adj nor xor was considered a good option)</div>\n" \
   "            </div>\n" \
   "            </a>\n" \
   "            <div class=\"book__meta\">\n" \