Collission avoidance
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 3/5
- 预计耗时
- 1-2 天
- 新手友好度
- 45/100
- Issue 类型
- 缺陷
- 描述清晰度
- 需要澄清
- 活跃度
- 停滞
- 技术栈
- python
调研方向
The save method in the caldav library needs improved collision avoidance. Start by locating the save method and understanding its current UID-check and check-then-PUT logic. Research caldav-standard approaches to collision detection, including path-name handling and race-condition prevention. The fix will require changes to how new items are created and existing items are updated.
由索引模型根据 Issue 内容生成。
描述
Also ref #143 ...
The save method have parameter that should prevent one from overwriting existing calendar items or creating new calendar items, but it seems not to be robust enough ...
- caldav objects have a path name which may or may not correspond to the UID. A UID check is not sufficient to prevent overwriting exisitng calendar items (and possibly on some calendar servers it may be possible to create two calendar items with the same UID but different path names).
- There is also a potential race condition as we first check and then PUT the new item.
(This would have been trivial if the caldav standard would have imposed some restrictions on the UID, asserted that the pathname and the UID should match, and used POST for new items and PUT for updating existing items ... did I ever mention that the caldav standard sucks, and the only reason for getting involved in this library was that I wanted to interface with it through some abstracted library rather than having to deal with the standard myself)?
- 主要语言
- Python
- 星标
- 412
- 派生
- 113
- 平均合并
- 10 小时 20 分钟
- 30 天内合并 PR
- 57
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python-caldav/caldav 的其他 Issue
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难度 2/5 1-3 小时 新手友好度 78/100
python-caldav/caldav#792 ·
维护者通常 1 天内回复
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难度 2/5 1-3 小时 新手友好度 68/100
python-caldav/caldav#788 ·
维护者通常 1 天内回复
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难度 2/5 1-3 小时 新手友好度 62/100
python-caldav/caldav#687 ·
维护者通常 1 天内回复
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难度 5/5 一周以上 新手友好度 35/100
python-caldav/caldav#817 · 1 条评论 ·
维护者通常 1 天内回复
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难度 3/5 1-2 天 新手友好度 65/100
python-caldav/caldav#815 ·
维护者通常 1 天内回复
查看 python-caldav/caldav 的全部 Issue
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