unzip a file from blob storage to File share without using windows API

Question

unzip a file from blob storage to File share without using windows API

Anonymous

Is there any way to unzip a file from blob storage to File share without using windows api like system.io.ZIPFile because I am getting Path too long or sometimes it is removing the character above 258 so I am getting directory not found error.

Basically I am uploading the zip file to the blob container and then extracting it to the directory and then uploading it to azure File share. For extracting I am using system.io.ZipFile.

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Answer 1

Sumarigo-MSFT 47,466 Microsoft Employee Moderator

@Anonymous There is no such inbuilt functionality in Azure storage. So it is not possible.

However there is some workaround in this blog, please refer to the suggestion in the blog which gives some idea on your scenario.

There are few threads in SO forum which refer to unzip files of blob storage

Please let us know if you have any further queries. I’m happy to assist you further.

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Anonymous

2022-07-14T06:21:27.417+00:00

@Sumarigo-MSFT

Will this support long file name length like more than 260 characters ?
Sumarigo-MSFT 47,466 Reputation points Microsoft Employee Moderator

2022-07-14T07:57:56.097+00:00
@Anonymous Will this support long file name length like more than 260 characters ? No, It by design

Limit is 256 characters for blob name in development storage.

Naming and Referencing Containers, Blobs, and Metadata

Container names must be from 3 through 63 characters long.

Blob names must be at least 1 character and cannot exceed 1,024 characters long.

If you wish to leave your feedback/UserVoice here. All the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.
Please let us know if you have any further queries. I’m happy to assist you further.

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Please do not forget to and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.
Anonymous

2022-07-14T09:19:04.577+00:00
Now we are uploading zip file to blob Container and then Extracting it to the File share using System.io.ZipFile ExtractToDirectory method now if the zip file has a file which has longer path(it is calculating the whole path (This is Fileshare path z:/bsssuninueit-8e582f41-ba2a-44c7-99d1-d3dc00cd9eec/74541bdf-1065-46269e6ad-5a88265d83d651652148/ScormContent/assets/XTnMiPXR3g2pCMfI_transcoded-tmflvHSLaWeWiUeQ-constructive-20-feedback-20-for-20-managers-20-giving-20-feedback-20-effectively-20-video-00001.png) it is throwing directory not found . If I follow the approach that you mentioned with 2 azure functions I wont get this path error or it wont trim my url which is more than 258 length ?

2.How can I upload the extracted ZipFile from my azure function to File share ?

My Application is running in .Net Framework 4.6.2 which Functions Worker I have to use for the azure function ?
SaiKishor-MSFT 17,336 Reputation points

2022-07-18T22:06:26.147+00:00

@Anonymous You should be able to use any 2.x version or higher of the Functions runtime. Please refer to - https://learn.microsoft.com/en-us/azure/azure-functions/deployment-zip-push#deployment-zip-file-requirements

Thanks. Please let us know if you have any further questions/concerns and we will be glad to assist further. Thank you!

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unzip a file from blob storage to File share without using windows API

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