SQL Server
SQL Server
Outlook --Download MIME Embedded Images in an HTML Email
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Demonstrates how to download the MIME embedded images for a particular HTML email message.The code for downloading the embedded HTML images is the same as for downloading attachments. When an HTML email has embedded images (and no real attachments), the JSON returned when listing the message will indicate "hasAttachments": false. However, you can still use the URL for getting attachments to get the embedded images.
Note: This example requires Chilkat v9.5.0.67 or greater.
This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com
Chilkat SQL Server Downloads
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
DECLARE @hr int
DECLARE @iTmp0 int
-- Important: Do not use nvarchar(max). See the warning about using nvarchar(max).
DECLARE @sTmp0 nvarchar(4000)
DECLARE @success int
SELECT @success = 0
-- This example requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.
DECLARE @http int
EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
IF @hr <> 0
BEGIN
PRINT 'Failed to create ActiveX component'
RETURN
END
-- Use your previously obtained access token here:
-- See the following examples for getting an access token:
-- Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
-- Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
-- Refresh Access Token (Azure AD v2.0 Endpoint).
-- Refresh Access Token (Azure AD Endpoint).
EXEC sp_OASetProperty @http, 'AuthToken', 'MICROSOFT_GRAPH_ACCESS_TOKEN'
DECLARE @sbResponse int
EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbResponse OUT
-- Sends: GET /users/{user_id | userPrincipalName}/messages/{message_id}/attachments
-- Note: It is also possible to use the literal string "me" for the current logged-on user.
-- For example: GET /me/messages/{message_id}/attachments
EXEC sp_OAMethod @http, 'ClearUrlVars', NULL
EXEC sp_OAMethod @http, 'SetUrlVar', @success OUT, 'userPrincipalName', 'chilkatsoft@outlook.com'
-- Assume we already have a message ID from previously listing the messages in a folder
DECLARE @messageId nvarchar(4000)
SELECT @messageId = 'AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAA=='
EXEC sp_OAMethod @http, 'SetUrlVar', @success OUT, 'message_id', @messageId
-- Send the request to download the attachments. However, this will also download the embedded images. (Who knew???)
EXEC sp_OAMethod @http, 'QuickGetSb', @success OUT, 'https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/messages/{$message_id}/attachments', @sbResponse
EXEC sp_OAGetProperty @http, 'LastStatus', @iTmp0 OUT
IF (@success <> 1) and (@iTmp0 = 0)
BEGIN
EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
PRINT @sTmp0
EXEC @hr = sp_OADestroy @http
EXEC @hr = sp_OADestroy @sbResponse
RETURN
END
-- The attachment data is contained within the JSON response.
DECLARE @json int
EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT
EXEC sp_OAMethod @json, 'LoadSb', @success OUT, @sbResponse
EXEC sp_OASetProperty @json, 'EmitCompact', 0
EXEC sp_OAGetProperty @http, 'LastStatus', @iTmp0 OUT
PRINT 'Status code = ' + @iTmp0
EXEC sp_OAGetProperty @http, 'LastStatus', @iTmp0 OUT
IF @iTmp0 <> 200
BEGIN
EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
PRINT @sTmp0
PRINT 'Failed.'
END
-- This is a sample JSON response. The code for parsing and extracting/saving the MIME images
-- is shown below.
-- {
-- "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('chilkatsoft%40outlook.com')/messages('AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAA%3D%3D')/attachments",
-- "value": [
-- {
-- "@odata.type": "#microsoft.graph.fileAttachment",
-- "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAAESABAAgZG0LQdbKEy5FudPGeyRCg==",
-- "lastModifiedDateTime": "2017-05-10T00:22:45Z",
-- "name": "starfish.jpg",
-- "contentType": "image/jpeg",
-- "size": 6497,
-- "isInline": true,
-- "contentId": "part1.A9EACD6E.4E93E87E@chilkatsoft.com",
-- "contentLocation": null,
-- "contentBytes": "/9j/4AAQSkZJRgABAgEASABIAAD/7Q18UGh ... +vo//2Q=="
-- },
-- {
-- "@odata.type": "#microsoft.graph.fileAttachment",
-- "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgBGAAADsVyfxjDU406Ic4X7ill8xAcA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAADn68XtMop0TpsYJGpfKXY9AAAAwSju2QAAAAESABAABRgWReFlhEmqGvKeoT0E6g==",
-- "lastModifiedDateTime": "2017-05-10T00:22:45Z",
-- "name": "hedgehogs.jpg",
-- "contentType": "image/jpeg",
-- "size": 48845,
-- "isInline": true,
-- "contentId": "part2.05D9E5DC.BA8874F4@chilkatsoft.com",
-- "contentLocation": null,
-- "contentBytes": "/9j/4AAQSkZJRg ... 9YEa//AMr/AP/Z"
-- }
-- ]
-- }
DECLARE @sbSavePath int
EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbSavePath OUT
DECLARE @attachData int
EXEC @hr = sp_OACreate 'Chilkat.BinData', @attachData OUT
DECLARE @lastMod int
EXEC @hr = sp_OACreate 'Chilkat.CkDateTime', @lastMod OUT
DECLARE @fac int
EXEC @hr = sp_OACreate 'Chilkat.FileAccess', @fac OUT
DECLARE @i int
SELECT @i = 0
DECLARE @numMessages int
EXEC sp_OAMethod @json, 'SizeOfArray', @numMessages OUT, 'value'
WHILE @i < @numMessages
BEGIN
EXEC sp_OASetProperty @json, 'I', @i
EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'value[i].name'
PRINT 'name: ' + @sTmp0
-- See the note below about the contentId.
EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'value[i].contentId'
PRINT 'contentId: ' + @sTmp0
EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'value[i].contentType'
PRINT 'contentType: ' + @sTmp0
DECLARE @sizeInBytes int
EXEC sp_OAMethod @json, 'IntOf', @sizeInBytes OUT, 'value[i].size'
PRINT 'size: ' + @sizeInBytes
-- Extract the data and save to a file.
EXEC sp_OAMethod @sbSavePath, 'SetString', @success OUT, 'qa_output/'
EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'value[i].name'
EXEC sp_OAMethod @sbSavePath, 'Append', @success OUT, @sTmp0
EXEC sp_OAMethod @attachData, 'Clear', @success OUT
EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'value[i].contentBytes'
EXEC sp_OAMethod @attachData, 'AppendEncoded', @success OUT, @sTmp0, 'base64'
EXEC sp_OAMethod @sbSavePath, 'GetAsString', @sTmp0 OUT
EXEC sp_OAMethod @attachData, 'WriteFile', @success OUT, @sTmp0
-- Get the last-modified date/time and set the output file's last-mod date/time..
EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'value[i].lastModifiedDateTime'
EXEC sp_OAMethod @lastMod, 'SetFromTimestamp', @success OUT, @sTmp0
EXEC sp_OAMethod @sbSavePath, 'GetAsString', @sTmp0 OUT
EXEC sp_OAMethod @fac, 'SetLastModified', @success OUT, @sTmp0, @lastMod
PRINT '----'
SELECT @i = @i + 1
END
-- The output of the above loop is:
-- name: starfish.jpg
-- contentId: part1.A9EACD6E.4E93E87E@chilkatsoft.com
-- contentType: image/jpeg
-- size: 6497
-- ----
-- name: hedgehogs.jpg
-- contentId: part2.05D9E5DC.BA8874F4@chilkatsoft.com
-- contentType: image/jpeg
-- size: 48845
-- ----
-- ----------------------------
-- NOTE: About the Content-ID
-- ----------------------------
-- Each image's contentId will correspond to a "cid" in the HTML body of the email.
-- For example, in this case, the HTML email contained this:
-- <html>
-- <head>
-- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-- <meta content="text/html; charset=utf-8">
-- </head>
-- <body bgcolor="#FFFFFF">
-- <font face="Calibri">This is a test email with images.<br>
-- <br>
-- <img alt="" src="cid:part1.A9EACD6E.4E93E87E@chilkatsoft.com" height="120" width="120"><br>
-- <img alt="" src="cid:part2.05D9E5DC.BA8874F4@chilkatsoft.com" height="427" width="600"><br>
-- </font>
-- </body>
-- </html>
--
EXEC @hr = sp_OADestroy @http
EXEC @hr = sp_OADestroy @sbResponse
EXEC @hr = sp_OADestroy @json
EXEC @hr = sp_OADestroy @sbSavePath
EXEC @hr = sp_OADestroy @attachData
EXEC @hr = sp_OADestroy @lastMod
EXEC @hr = sp_OADestroy @fac
END
GO