Chilkat Software

May 12, 2022

Error: “No Content-Length header AND not a chunked response. Assuming no response body.”

The following error was received from a call to Rest.FullRequestSb: ChilkatLog: FullRequestSb: DllDate: Mar 23 2022 ChilkatVersion: 9.5.0.90 Architecture: Little Endian; 64-bit VerboseLogging: 0 uriPath: … fullRequestBody: autoReconnect: 1 Sending request with body… sendReqBody: … –sendReqBody Sent request. fullRequestGetResponse: Reading response header… responseStatusCode: 200 Reading response body … readResponseBody: No Content-Length header AND not a chunked response. Assuming no response […]

REST API 0 1 min read
May 11, 2022

undefined reference to `__res_query’

Question: Trying to link Chilkat (C++) with the following libs: LIBS=-lstdc++fs \ -pthread \ -L${FMT_LIB} -lfmt \ -lspdlog \ /usr/local/lib/libredis++.a \ ${BOOST_LIB}/libboost_json.a \ … … ${CHILKAT_LIB}/libchilkat-9.5.0.a \ -lmongoc-1.0 -lbson-1.0 \ -lpthread \ -ldl \ -lresolv After we went from ubuntu 21 to 22 LTS, using same compiler, it stopped working. Now we get errors: /usr/bin/ld: … libchilkat-9.5.0.a(ChilkatResolve.o): in function `ChilkatResolve::bestMxLookup(char […]

C++ Linking 0 1 min read
May 11, 2022

SMTP / Office 365 / OAuth2 : SmtpCmdResp: 535 5.7.3 Authentication unsuccessful

Question: A customer wants to send emails with Office 365 and OAuth2 Authentication. The setup of the application in Azure is OK. It works for one user. For another user we have the following error: SmtpCmdResp: 535 5.7.3 Authentication unsuccessful [****.****.prod.outlook.com] For authentication I use the example: https://www.example-code.com/powerbuilder/office365_oauth2_access_token.asp What is surprising is that for the second user on same PC, […]

OAuth2 0 1 min read
May 9, 2022

Install PHP Extensions on Shared Hosting (such as BlueHost)?

Question: Is it possible to install the Chilkat PHP extension at a sharing host like Bluehost?  I’ve been trying but no success until now, so I am starting to think that it isn’t possible. Answer:  It doesn’t look like it’s possible:  https://www.bluehost.com/help/article/php-module You might consider hosting on Amazon EC2.  It can be quite inexpensive, you’ll have full control over your […]

PHP 0 23 sec read
May 6, 2022

GMail SMTP with Send-Only Scope? (https://www.googleapis.com/auth/gmail.send)

Apparently the full permission scope is required to do XOAUTH2 authentication in the SMTP protocol for GMail. See these examples https://www.example-code.com/vbnet/gmail_smtp_oauth2_access_token.asp https://www.example-code.com/vbnet/gmail_smtp_send_using_oauth2_token.asp The full permission scope is “https://mail.google.com/” The send-only scope is: “https://www.googleapis.com/auth/gmail.send” Google claims that it’s possible to send email with the send-only scope, but we’ve found it is  simply possible.  It just doesn’t work. Don’t know why. Perhaps […]

GMail 0 37 sec read
May 4, 2022

AWS Presigned URLs for Services Other than S3?

There is a big unsolved mystery:  Is it possible to create pre-signed URLs for AWS services other than S3?    For example, is it possible to create a pre-signed URL that allows the user to send an SES email? We simply don’t know.  Theoretically it seems it should be possible.  However, all AWS pre-signed URL documentation or examples has to do […]

AWS 0 19 sec read
May 4, 2022

Chilkat 4-May-2022 – This Python version does not match the downloaded Chilkat module.

Question: Unable to install Chilkat because of the Python version and architecture error: “This Python version does not match the downloaded Chilkat module.” Answer: Refer to the install instructions here:   https://www.chilkatsoft.com/installPythonLinux2.asp You can open the installChilkat.py script in a text editor to see what it does.  It’s simply verifying that your version of Python (such as “3.7”) matches the version […]

Uncategorized 0 30 sec read
April 16, 2022

Chilkat 16-April-2022

Problem Report: Sending Signed Email with an Attachment A user reported a problem where sending digitally signed email works fine for emails with no attachments, but verification on the receiving end failed for emails with attachments.  Chilkat tried the same, but (of course) everything worked for us. (The problem turned out to be a user-error, i.e. not a problem in […]

Daily Notes 0 1 min read
April 13, 2022

Chilkat 13-April-2022 – OAuth2 authentication for desktop apps.

  OAuth2 authentication for desktop apps. Many developers don’t realize that the Chilkat OAuth2 class is for desktop applications.  Doing OAuth2 in a web application (where your code runs on a web server) is relatively easy and does not require Chilkat (although Chilkat can be used to assist with some mundane tasks).  Working/live examples are provided on the Chilkat Tools […]

Daily Notes 0 3 min read

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ActiveX asp async asynchronous C# callbacks Delphi email Encryption error messages events exchange server FTP GMail HTTP IMAP IOS Java Linking MIME oauth2 Office365 pfx PHP pop3 port-forwarding regsvr32 release notes RSA SFTP smartcard SMTP socket SSH SSL TLS tunnel upload vb6 VBScript VC++ x64 xades XML zip