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https://github.com/cwinfo/powerdns-admin.git
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Merge pull request #1423 from corubba/feature/history-diff
Diff-ify changelog view for zone changes
This commit is contained in:
Matt Scott
GitHub
commit
840076dae3
@ -34,61 +34,77 @@ admin_bp = Blueprint('admin',
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template_folder='templates',
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url_prefix='/admin')
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"""
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changeSet is a list of tuples, in the following format
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(old_state, new_state, change_type)
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old_state: dictionary with "disabled" and "content" keys. {"disabled" : False, "content" : "1.1.1.1" }
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new_state: similarly
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change_type: "addition" or "deletion" or "status" for status change or "unchanged" for no change
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Note: A change in "content", is considered a deletion and recreation of the same record,
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holding the new content value.
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"""
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def get_record_changes(del_rrset, add_rrset):
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changeSet = []
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delSet = del_rrset['records'] if 'records' in del_rrset else []
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addSet = add_rrset['records'] if 'records' in add_rrset else []
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for d in delSet: # get the deletions and status changes
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exists = False
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for a in addSet:
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if d['content'] == a['content']:
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exists = True
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if d['disabled'] != a['disabled']:
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changeSet.append(({"disabled": d['disabled'], "content": d['content']},
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{"disabled": a['disabled'], "content": a['content']},
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"status"))
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"""Use the given deleted and added RRset to build a list of record changes.
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Args:
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del_rrset: The RRset with changetype DELETE, or None
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add_rrset: The RRset with changetype REPLACE, or None
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Returns:
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A list of tuples in the format `(old_state, new_state, change_type)`. `old_state` and
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`new_state` are dictionaries with the keys "disabled", "content" and "comment".
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`change_type` can be "addition", "deletion", "edit" or "unchanged". When it's "addition"
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then `old_state` is None, when it's "deletion" then `new_state` is None.
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"""
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def get_records(rrset):
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"""For the given RRset return a combined list of records and comments."""
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if not rrset or 'records' not in rrset:
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return []
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records = [dict(record) for record in rrset['records']]
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for i, record in enumerate(records):
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if 'comments' in rrset and len(rrset['comments']) > i:
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record['comment'] = rrset['comments'][i].get('content', None)
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else:
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record['comment'] = None
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return records
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def record_is_unchanged(old, new):
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"""Returns True if the old record is not different from the new one."""
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if old['content'] != new['content']:
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raise ValueError("Can't compare records with different content")
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# check everything except the content
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return old['disabled'] == new['disabled'] and old['comment'] == new['comment']
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def to_state(record):
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"""For the given record, return the state dict."""
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return {
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"disabled": record['disabled'],
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"content": record['content'],
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"comment": record.get('comment', ''),
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}
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add_records = get_records(add_rrset)
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del_records = get_records(del_rrset)
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changeset = []
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for add_record in add_records:
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for del_record in list(del_records):
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if add_record['content'] == del_record['content']:
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# either edited or unchanged
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if record_is_unchanged(del_record, add_record):
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# unchanged
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changeset.append((to_state(del_record), to_state(add_record), "unchanged"))
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else:
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# edited
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changeset.append((to_state(del_record), to_state(add_record), "edit"))
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del_records.remove(del_record)
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break
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else: # not mis-indented, else block for the del_records for loop
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# addition
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changeset.append((None, to_state(add_record), "addition"))
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if not exists: # deletion
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changeSet.append(({"disabled": d['disabled'], "content": d['content']},
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None,
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"deletion"))
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# Because the first loop removed edit/unchanged records from the del_records list,
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# it now only contains real deletions.
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for del_record in del_records:
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changeset.append((to_state(del_record), None, "deletion"))
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for a in addSet: # get the additions
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exists = False
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for d in delSet:
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if d['content'] == a['content']:
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exists = True
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# already checked for status change
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break
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if not exists:
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changeSet.append((None, {"disabled": a['disabled'], "content": a['content']}, "addition"))
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continue
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# Sort them by the old content. For Additions the new state will be used.
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changeset.sort(key=lambda change: change[0]['content'] if change[0] else change[1]['content'])
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for a in addSet: # get the unchanged
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exists = False
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for c in changeSet:
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if c[1] != None and c[1]["content"] == a['content']:
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exists = True
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break
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if not exists:
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changeSet.append(({"disabled": a['disabled'], "content": a['content']},
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{"disabled": a['disabled'], "content": a['content']}, "unchanged"))
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return changeSet
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return changeset
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# out_changes is a list of HistoryRecordEntry objects in which we will append the new changes
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@ -118,7 +134,7 @@ def extract_changelogs_from_a_history_entry(out_changes, history_entry, change_n
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if change_num not in out_changes:
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out_changes[change_num] = []
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out_changes[change_num].append(
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HistoryRecordEntry(history_entry, [], add_rrset, "+")) # (add_rrset, del_rrset, change_type)
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HistoryRecordEntry(history_entry, {}, add_rrset, "+")) # (add_rrset, del_rrset, change_type)
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for del_rrset in del_rrsets:
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exists = False
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for add_rrset in add_rrsets:
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@ -128,7 +144,13 @@ def extract_changelogs_from_a_history_entry(out_changes, history_entry, change_n
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if not exists: # this is a deletion
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if change_num not in out_changes:
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out_changes[change_num] = []
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out_changes[change_num].append(HistoryRecordEntry(history_entry, del_rrset, [], "-"))
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out_changes[change_num].append(HistoryRecordEntry(history_entry, del_rrset, {}, "-"))
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# Sort them by the record name
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if change_num in out_changes:
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out_changes[change_num].sort(key=lambda change:
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change.del_rrset['name'] if change.del_rrset else change.add_rrset['name']
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)
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# only used for changelog per record
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if record_name != None and record_type != None: # then get only the records with the specific (record_name, record_type) tuple
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@ -57,3 +57,26 @@ table.records thead th:last-of-type { width: 50px; }
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div.records > div.dataTables_wrapper > div.row:first-of-type { margin: 0 0.5em 0 0.5em; }
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div.records > div.dataTables_wrapper > div.row:last-of-type { margin: 0.4em 0.5em 0.4em 0.5em; }
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div.records > div.dataTables_wrapper table.dataTable { margin: 0 !important; }
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.diff {
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font-family: monospace;
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padding: 0 0.2em;
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}
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.diff::before {
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content: "\00a0";
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padding-right: 0.1em;
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}
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.diff-deletion {
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background-color: lightcoral;
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}
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.diff-deletion::before {
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content: "-";
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}
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.diff-addition {
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background-color: lightgreen;
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}
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.diff-addition::before {
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content: "+";
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}
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@ -537,7 +537,7 @@
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</div>
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<!-- History Details Box -->
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<div class="modal fade" id="modal_history_info">
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<div class="modal-dialog">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="modal-header">
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<h4 class="modal-title">History Details</h4>
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@ -4,129 +4,110 @@
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<table id="tbl_records" class="table table-bordered">
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<thead>
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<tr>
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<th colspan="3">
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{% if hist_rec_entry.change_type == "+" %}
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<span
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style="background-color: lightgreen">{{hist_rec_entry.add_rrset['name']}}
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{{hist_rec_entry.add_rrset['type']}}</span>
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{% elif hist_rec_entry.change_type == "-" %}
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<s
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style="text-decoration-color: rgba(194, 10,10, 0.6); text-decoration-thickness: 2px;">
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{{hist_rec_entry.del_rrset['name']}}
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{{hist_rec_entry.del_rrset['type']}}
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</s>
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<th scope="col" colspan="3">
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{% if hist_rec_entry.change_type == '-' %}
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<span class="diff diff-deletion">{{
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hist_rec_entry.del_rrset['name'] }} {{ hist_rec_entry.del_rrset['type']
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}}</span>
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{% elif hist_rec_entry.change_type == '+' %}
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<span class="diff diff-addition">{{
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hist_rec_entry.add_rrset['name'] }} {{ hist_rec_entry.add_rrset['type']
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}}</span>
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{% else %}
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{{hist_rec_entry.add_rrset['name']}}
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{{hist_rec_entry.add_rrset['type']}}
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<span class="diff diff-unchanged">{{
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hist_rec_entry.add_rrset['name'] }} {{ hist_rec_entry.add_rrset['type']
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}}</span>
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{% endif %}
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, TTL:
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{% if "ttl" in hist_rec_entry.changed_fields %}
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<s
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style="text-decoration-color: rgba(194, 10,10, 0.6); text-decoration-thickness: 2px;">
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{{hist_rec_entry.del_rrset['ttl']}}</s>
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<span
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style="background-color: lightgreen">{{hist_rec_entry.add_rrset['ttl']}}</span>
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, TTL
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{% if not 'ttl' in hist_rec_entry.changed_fields %}
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<span class="diff diff-unchanged">{{
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hist_rec_entry.add_rrset['ttl']
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}}</span>
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{% else %}
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{{hist_rec_entry.add_rrset['ttl']}}
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{% if hist_rec_entry.change_type in ['-', '*'] %}
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<span class="diff diff-deletion">{{
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hist_rec_entry.del_rrset['ttl']
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}}</span>
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{% endif %}
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{% if hist_rec_entry.change_type in ['+', '*'] %}
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<span class="diff diff-addition">{{
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hist_rec_entry.add_rrset['ttl']
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}}</span>
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{% endif %}
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{% endif %}
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</th>
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</tr>
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<tr>
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<th style="width: 150px;">Status</th>
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<th style="width: 400px;">Data</th>
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<th style="width: 400px;">Comment</th>
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<th scope="col" style="width: 150px;">Status</th>
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<th scope="col" style="width: 400px;">Data</th>
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<th scope="col" style="width: 400px;">Comment</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>
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<table>
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<tbody>
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{% for changes in hist_rec_entry.changeSet %}
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<tr>
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{% if changes[2] == "unchanged" %}
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<td>{{ "Activated" if changes[0]['disabled'] ==
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False else
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"Disabled"}} </td>
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{% elif changes[2] == "addition" %}
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<td>
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<span style="background-color: lightgreen">
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{{ "Activated" if changes[1]['disabled'] ==
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False else
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"Disabled"}}
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</span>
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</td>
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{% elif changes[2] == "status" %}
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<td>
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<s
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style="text-decoration-color: rgba(194, 10,10, 0.6); text-decoration-thickness: 2px;">
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{{ "Activated" if changes[0]['disabled'] ==
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False else
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"Disabled"}}</s>
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<span style="background-color: lightgreen">{{
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"Activated" if changes[1]['disabled'] ==
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False else
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"Disabled"}}</span>
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</td>
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{% elif changes[2] == "deletion" %}
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<td>
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<s
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style="text-decoration-color: rgba(194, 10,10, 0.6); text-decoration-thickness: 2px;">
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{{ "Activated" if changes[0]['disabled'] ==
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False else
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"Disabled"}}</s>
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</td>
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<td style="word-break: break-all">
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{% if changes[2] == "unchanged" or
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(changes[2] == "edit" and changes[0]['disabled'] == changes[1]['disabled']) %}
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<div class="diff diff-unchanged">{{
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"Disabled" if changes[1]['disabled'] else "Activated"
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}}</div>
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{% else %}
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{% if changes[2] in ["deletion", "edit"] %}
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<div class="diff diff-deletion">{{
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"Disabled" if changes[0]['disabled'] else "Activated"
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}}</div>
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{% endif %}
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{% if changes[2] in ["addition", "edit"] %}
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<div class="diff diff-addition">{{
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"Disabled" if changes[1]['disabled'] else "Activated"
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}}</div>
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{% endif %}
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</td>
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<td>
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<table>
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<tbody>
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{% for changes in hist_rec_entry.changeSet %}
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<tr>
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{% if changes[2] == "unchanged" %}
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<td style="word-break: break-all">
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{{changes[0]['content']}}
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</td>
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{% elif changes[2] == "addition" %}
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<td style="word-break: break-all">
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<span style="background-color: lightgreen">
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{{changes[1]['content']}}
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</span>
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</td>
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{% elif changes[2] == "deletion" %}
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<td style="word-break: break-all">
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<s
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style="text-decoration-color: rgba(194, 10, 10, 0.6); text-decoration-thickness: 2px;">
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{{changes[0]['content']}}
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</s>
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</td>
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{% elif changes[2] == "status" %}
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<td style="word-break: break-all">
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{{changes[0]['content']}}
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</td>
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{% endif %}
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</td>
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<td style="word-break: break-all">
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{% for comments in hist_rec_entry.add_rrset['comments'] %}
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{{comments['content'] }}
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<br/>
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{% endfor %}
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{% if changes[2] == "unchanged" or
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(changes[2] == "edit" and changes[0]['content'] == changes[1]['content']) %}
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<div class="diff diff-unchanged">{{
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changes[1]['content']
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}}</div>
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{% else %}
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{% if changes[2] in ["deletion", "edit"] %}
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<div class="diff diff-deletion">{{
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changes[0]['content']
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}}</div>
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{% endif %}
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{% if changes[2] in ["addition", "edit"] %}
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<div class="diff diff-addition">{{
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changes[1]['content']
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}}</div>
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{% endif %}
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{% endif %}
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</td>
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<td style="word-break: break-all">
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{% if changes[2] == "unchanged" or
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(changes[2] == "edit" and changes[0]['comment'] == changes[1]['comment']) %}
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<div class="diff diff-unchanged">{{
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changes[1]['comment']
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}}</div>
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{% else %}
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{% if changes[2] in ["deletion", "edit"] and changes[0]['comment'] %}
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<div class="diff diff-deletion">{{
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changes[0]['comment']
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}}</div>
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{% endif %}
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{% if changes[2] in ["addition", "edit"] and changes[1]['comment'] %}
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<div class="diff diff-addition">{{
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changes[1]['comment']
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}}</div>
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{% endif %}
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{% endif %}
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</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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{% endfor %}
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