How did Douban delete the user's photo album pictures?

How did Douban delete the user's photo album pictures?

How did Douban delete the user's photo album pictures? Douban said that the incident was because the pictures uploaded by users were mistakenly deleted as cache files under the poor network environment. However, this statement has been questioned. How did Douban delete the user's photo album pictures?

How did Douban delete the user's photo album pictures? 1 Recently, some netizens revealed that Huawei's mobile phone prompted Douban App to delete its photo album pictures, which triggered a heated discussion.

On the evening of 27th, Douban issued a public statement saying that it had been checked for the first time after receiving relevant feedback. In view of this incident, through the information provided by users in Weibo, engineers found through further technical analysis that under the harsh network environment, when the system thinks that the post page sends multiple replies with pictures at the same time, it will lead to the mistaken deletion of the pictures uploaded by users as cache files. The probability of this bug is low, and Douban App will be fixed in the next version. Douban apologized for this and said that it would further optimize its products to better ensure the user experience.

Douban said that protecting user privacy is the basic principle of Douban. If the user does not grant storage permission, Douban will not read files including album pictures on the user's device in any scenario, which is technically impossible.

In addition, when the user performs operations such as "saving pictures to the device" or "accessing and uploading pictures or videos from the device", Douban will apply for storage permission. After being authorized, Douban will only access the necessary files when users use the above functions to ensure the normal use of the functions.

According to Du Nan's previous report, 10 On June 26th, some netizens claimed that the pictures they had saved in their mobile phone albums were deleted by Douban App for no reason and needed to be retrieved from the recycle bin. According to the picture posted by this netizen, the mobile phone installation of Douban application needs to open the relevant permissions of "reading SD card content" and "modifying or deleting SD card content". This netizen suspects that Douban app can delete the pictures in the user's mobile phone photo album through the opening of this permission.

What happened when Douban deleted the user's photo album 2 10/On October 27th, Douban officially responded to the "mobile phone photo album was deleted" incident. Douban said that this incident was due to the mistake of deleting the pictures uploaded by users as cache files under the poor network environment, and this bug will be fixed in the next version. However, this statement has been questioned. According to industry insiders, the root cause is that there are big bugs in the background code. Douban, as an App with a daily life of 600 million, should not have this problem.

101On October 26th, some netizens said that they posted pictures in the comments of Douban App, but they were deleted in seconds. Douban App deleted all the pictures sent in the mobile phone photo album and finally found them in the recycle bin. "I made a comment today and it was deleted. I don't know if the system didn't remind me, "he said. I might not have noticed this problem if the mobile phone system didn't prompt "I have detected that Douban has deleted pictures, and the deleted contents can be viewed in' Gallery-Album-Recently Deleted'".

Douban said in its response on the evening of 27th that it received feedback from individual users yesterday that "mobile phone prompts Douban to delete pictures", and Douban attached great importance to it and checked it at the first time.

First, if the user does not grant storage rights, Douban will not read files including album pictures on the user's device in any scenario, which is technically impossible.

Second, Douban will apply for storage rights when users perform operations such as "saving pictures to devices" or "accessing and uploading pictures or videos from devices". After being authorized, Douban will only access the necessary files when users use the above functions to ensure the normal use of the functions.

Thirdly, according to the information provided by users in Weibo, engineers found that when the network environment is poor, when the system thinks that the post page sends multiple replies with pictures at the same time, it will mistakenly delete the pictures uploaded by users as cache files, and the probability of this bug is low. Douban said it will be fixed in the next version.

However, some people in the industry have questioned this statement, saying that "in a bad network environment, the system thinks that the post page sends multiple replies with pictures at the same time" is only a superficial phenomenon, not the root cause. "The root cause is that there is a bug in the background development code, and the conditions for judging the cached images are insufficient." The source said that in theory, whether it is a cached picture should be judged from the storage path and other ways. Douban, as an App with a daily life of more than 600 million, should not appear. Such a low-level mistake.