More MOBI indexing fixes

src/calibre/devices/usbms/driver.py

@@ -85,7 +85,7 @@ class USBMS(CLI, Device):
         elif on_card == 'cardb' and not self._card_b_prefix:
             raise ValueError(_('The reader has no storage card in this slot.'))
         elif on_card and on_card not in ('carda', 'cardb'):
-            raise DeviceError(_('The reader has no storage card in this slot.'))
+            raise DeviceError(_('Selected slot: %s is not supported.' % on_card))
 
         if on_card == 'carda':
             path = os.path.join(self._card_a_prefix, self.EBOOK_DIR_CARD_A)

src/calibre/ebooks/mobi/writer.py

@@ -29,6 +29,8 @@ from calibre.ebooks.oeb.base import prefixname
 from calibre.ebooks.oeb.base import urlnormalize
 from calibre.ebooks.compression.palmdoc import compress_doc
 
+INDEXING = True
+
 # TODO:
 # - Optionally rasterize tables
 
@@ -99,8 +101,7 @@ def decint(value, direction):
 
 
 def align_block(raw, multiple=4, pad='\0'):
-    l = len(raw)
+    extra = len(raw) % multiple
-    extra = l % multiple
     if extra == 0: return raw
     return raw + pad*(multiple - extra)
 
@@ -355,7 +356,7 @@ class MobiWriter(object):
     def _generate_content(self):
         self._map_image_names()
         self._generate_text()
-        if not self.opts.no_mobi_index:
+        if INDEXING and not self.opts.no_mobi_index:
             self._generate_index()
         self._generate_images()
 
@@ -406,6 +407,7 @@ class MobiWriter(object):
         self._content_length = len(text)
         self._text_length = len(text)
         text = StringIO(text)
+        buf = []
         nrecords = 0
         offset = 0
         if self._compression != UNCOMPRESSED:
@@ -435,9 +437,13 @@ class MobiWriter(object):
                 lsize += 1
             record.write(size)
             self._records.append(record.getvalue())
+            buf.append(self._records[-1])
             nrecords += 1
             offset += RECORD_SIZE
             data, overlap = self._read_text_record(text)
+        extra = len(''.join(buf))%4
+        if extra > 0 and INDEXING:
+            self._records[-1] += '\0'*(4-extra)
         self._text_nrecords = nrecords
 
     def _generate_indxt(self, ctoc):
@@ -448,7 +454,7 @@ class MobiWriter(object):
 
         indices.write('IDXT')
         c = 0
-        last_index = last_name = None
+        last_name = None
 
         def add_node(node, offset, length, count):
             if self.opts.verbose > 2:
@@ -487,20 +493,19 @@ class MobiWriter(object):
                 length = self._content_length - offset
 
             add_node(child, offset, length, c)
-            last_index = c
             ctoc_offset = self._ctoc_map[child]
             last_name = "%4d"%c
             c += 1
 
         return align_block(indxt.getvalue()), c, \
-            align_block(indices.getvalue()), last_index, last_name
+            align_block(indices.getvalue()), last_name
 
 
     def _generate_index(self):
         self._oeb.log('Generating index...')
         self._primary_index_record = None
         ctoc = self._generate_ctoc()
-        indxt, indxt_count, indices, last_index, last_name = \
+        indxt, indxt_count, indices, last_name = \
                 self._generate_indxt(ctoc)
 
         indx1 = StringIO()
@@ -529,7 +534,7 @@ class MobiWriter(object):
         indx1.write(indices)
         indx1 = indx1.getvalue()
 
-        idxt0 = chr(len(last_name)) + last_name + pack('>H', last_index)
+        idxt0 = chr(len(last_name)) + last_name + pack('>H', indxt_count)
         idxt0 = align_block(idxt0)
         indx0 = StringIO()
 
@@ -666,7 +671,8 @@ class MobiWriter(object):
         metadata = self._oeb.metadata
         exth = self._build_exth()
         last_content_record = len(self._records) - 1
-        self._generate_end_records()
+        if INDEXING:
+            self._generate_end_records()
         record0 = StringIO()
         # The PalmDOC Header
         record0.write(pack('>HHIHHHH', self._compression, 0,
@@ -827,6 +833,10 @@ class MobiWriter(object):
             if index is not None:
                 exth.write(pack('>III', 0xca, 0x0c, index - 1))
                 nrecs += 1
+        if INDEXING:
+            # Write unknown EXTH records as 0s
+            for code, size in [(204,4), (205,4), (206,4), (207,4), (300,40)]:
+                exth.write(pack('>I', code)+'\0'*size)
         exth = exth.getvalue()
         trail = len(exth) % 4
         pad = '\0' * (4 - trail) # Always pad w/ at least 1 byte
@@ -849,7 +859,7 @@ class MobiWriter(object):
 
     def _write_header(self):
         title = str(self._oeb.metadata.title[0])
-        title = re.sub('[^-A-Za-z0-9]+', '_', title)[:32]
+        title = re.sub('[^-A-Za-z0-9]+', '_', title)[:31]
         title = title + ('\0' * (32 - len(title)))
         now = int(time.time())
         nrecords = len(self._records)
@@ -866,4 +876,3 @@ class MobiWriter(object):
             self._write(record)
 
 
-

src/calibre/gui2/main.py

@@ -785,7 +785,7 @@ class Main(MainWindow, Ui_MainWindow, DeviceGUI):
 
     def _add_books(self, paths, to_device, on_card=None):
         if on_card is None:
-            on_card = self.stack.currentIndex() >= 2
+            on_card = 'carda' if self.stack.currentIndex() == 2 else 'cardb' if self.stack.currentIndex() == 3 else None
         if not paths:
             return
         from calibre.gui2.add import Adder
@@ -795,7 +795,7 @@ class Main(MainWindow, Ui_MainWindow, DeviceGUI):
                 Dispatcher(self.__adder_func))
         self._adder.add(paths)
 
-    def _files_added(self, paths=[], names=[], infos=[], on_card=False):
+    def _files_added(self, paths=[], names=[], infos=[], on_card=None):
         if paths:
             self.upload_books(paths,
                                 list(map(sanitize_file_name, names)),