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Getting image dimensions without reading the entire file

...th: Bytes 16-19 Height: Bytes 20-23 As mentioned above, wotsit is a good site for detailed specs on image and data formats though the PNG specs at pnglib are much more detailed. However, I think the Wikipedia entry on PNG and GIF formats is the best place to start. Here’s my original code for c...
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Which $_SERVER variables are safe?

...you can use. But I'd still suggest submitting a bug report (when their bug site is fixed), sending doc maintainers an email, or updating the docs yourself (if you're privy to the link). It would benefit the community to know this info. – bob-the-destroyer Jun 3...
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How to do a https request with bad certificate?

... Do you happen to know a site where I can test this? golang org now doesn't throw an error anymore. – topskip Nov 8 '17 at 7:57 3 ...
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I lost my .keystore file?

...re.jks Then upload this pem file and fill the form and submit it to this site . And then you will receive an email once we've registered the new upload key . Only accepts key reset requests from the Play Console account owner. All well and good. You can publish new release apk with your new jks f...
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Xcode “The private key for is not installed on this mac - distributing”

...evoke your existing iOS Distribution Certificate from the iOS developer website. Generate a new iOS Distribution Certificate by going to XCode Preferences->Accounts->View Details and then clicking the + underneath the list of signing identities. Go back to the developer website and make sure a...
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Purpose of Django setting ‘SECRET_KEY’

...a user session, password reset request, messages, etc. Prevention of cross-site or replay attacks by adding (and then expecting) unique values for the request. Generating a unique salt for hash functions. So, the general answer is: There are many things in a Django app which require a cryptographi...
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What is the difference between SQL, PL-SQL and T-SQL?

...t more than just manage "business rules"; PL/SQL procedures can access web sites, send email etc. – Erich Kitzmueller Jun 25 '09 at 11:08 3 ...
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iPhone App Minus App Store?

... Build your app Upload to a crack site (If you app is good enough) the crack version will be posted minutes later and ready for everyone to download ;-) share | ...
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python: Change the scripts working directory to the script's own directory

...t be mashed into one big directory. Put your code in some known location (site-packages or /var/opt/udi or something) separate from your data. Use good version control on your code to be sure that you have current and previous versions separated from each other so you can fall back to previous ver...
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Django connection to PostgreSQL: “Peer authentication failed”

This is the error I am receiving when I try to get to my Django admin site. I had been using MySQL database no problem. I am new to PostgreSQL, but decided to switch because the host I ultimately plan to use for this project does not have MySQL. ...