Merge branch 'strict-blob' into py3qt

revert_blob_to_text.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+python3 pybitmessage/revert_blob_to_text.py "$@"

src/revert_blob_to_text.py

@@ -0,0 +1,52 @@
+import helper_startup
+import state
+import shutil
+import sqlite3
+
+expected_ver = 11
+
+print("Looking up database file..")
+helper_startup.loadConfig()
+db_path = state.appdata + "messages.dat"
+print("Database path: {}".format(db_path))
+db_backup_path = db_path + ".blob-keys"
+print("Backup path: {}".format(db_backup_path))
+shutil.copyfile(db_path, db_backup_path)
+print("Copied to backup")
+
+print()
+
+print("Open the database")
+conn = sqlite3.connect(db_path)
+cur = conn.cursor()
+
+cur.execute("SELECT value FROM settings WHERE key='version';")
+ver = int(cur.fetchall()[0][0])
+print("PyBitmessage database version: {}".format(ver))
+if ver != expected_ver:
+    print("Error: version must be {}".format(expected_ver))
+    conn.close()
+    print("Quitting..")
+    quit()
+print("Version OK")
+
+print()
+
+print("Converting..")
+q = "UPDATE inbox SET msgid=CAST(msgid AS TEXT), sighash=CAST(sighash AS TEXT);"
+print(q)
+cur.execute(q)
+q = "UPDATE pubkeys SET transmitdata=CAST(transmitdata AS TEXT);"
+print(q)
+cur.execute(q)
+q = "UPDATE sent SET msgid=CAST(msgid AS TEXT), toripe=CAST(toripe AS TEXT), ackdata=CAST(ackdata AS TEXT);"
+print(q)
+cur.execute(q)
+
+print("Commiting..")
+conn.commit()
+print("Conversion done")
+
+print("Close the database")
+conn.close()
+print("Finished")