As per https://developers.google.com/drive/v2/reference/files (files), I hope to use embedLink to display a file in web page via IFrame.
embedLink seems to be only available for certain file types, primarily Google Docs format and video; and is of format https://docs.google.com/document/d/1EmwDVqmUBAYcjz/preview
alternateLink is always available and is of format https://docs.google.com/document/d/1EmwDVqmUBAYcjz/edit
Since embedLink value is not always available, can I replace /edit with /preview and use it?
You can use the alternateLink when you want to open the file in the appropriate Google viewer. However, it is strongly recommended not to manually construct the URLs.
Instead, you should always retrieve the file metadata and then use the value of the specific field you need. The URL format is not guaranteed, so if you try to guess those links your application may break any time.
Related
I want to use Blockly to do some calculations, and then generate text files (as opposed to exporting code to JavaScript, Python, PHP, etc.)
I can’t see an obvious way to create my own blocks to do this in Blockly, so using AppInventor (Version: nb168), I got storing and retrieving files to work, in a crude test app on my Android tablet.
In AppInventor/Designer mode, clicking Storage/File creates a “Non-visible component for storing and retrieving files. Use this component to write or read files on your device.”
Then, in AppInventor/Blocks mode, clicking the “File1” icon gives access to 7 “file type blocks”, e.g. AppendToFile, Delete, ReadFrom, SaveFile, etc.
Is it possible to create similar “file type blocks” to use in Blockly Web?
I have limited programming knowledge, so would appreciate simple answers, please.
Thanks, Pete.
Andrew N Marshall from Google/Blockly has told me this:
"This is absolutely possible ...as long as you willing to work within the browser's security restrictions. The resulting files will be need to be manually "downloaded" one at a time, rather than written directly to the user's file system.
... I would start understanding what JavaScript functions are available to you. Attempt to construct a string and save it via a download dialog...
That means the "file" contents are really just a string in memory, a JavaScript variable. We have lots of "Text" blocks that can do a variety of operations on strings. If those are enough, you'll only need one new block to identify the string variable and initiate the download process.
Otherwise, you'll need to think about what blocks you want, and how they operate. They may operate on a specific variable in the JavaScript VM, not necessary exposed as a variable to Blockly.
Either way, you'll need to learn how to create a block and a Blockly app. We have a code lab that will walk you through all the steps. You'll learn how each block generates a string of code, and in your case, that code will be related to the download code I mentioned earlier."
So I'll press on - I just wanted to be sure my goal is actually achievable before I started.
Thanks, Pete.
i was trying to understand in the Kentico's database model how can i change the web parts content using a database script.
So, basically i have a website based on Kentico with several articles, and internal hyperlinks in its content. But the problem is that the format of those hyperlinks are actually invalid. And i was looking for a way to build a script and do a bulk-update in order to replace some characters and update those hyperlinks to the valid format.
Any idea how can i build the query to get the content of all web parts used in all published pages.
Thank you
It depends on your web parts and how the content is rendered. There are different ways that web parts render their content:
The web part layout is used for markup
The ASCX file for the web part is used for markup
The web part makes use of a repeater that uses a Transformation to render the markup- The markup is generated in code behind
The last one can be tricky to change depending on the web part and whether you have access to all the code behind, but the others you can change either in code in your solution or within the Administration area itself.
Doing this in SQL would probably require a combination of T-SQL XML support and regular expressions to find what you're looking for. you effectively need to look in the CMS_WebPart and CMS_WebPartLayout tables to find what you're looking for.
However, reading your query, I'm not 100% sure you're talking about web parts, (my apologies if you are) as you talk about links in the article content itself. If these are set using the Editable text web part, then you need to look in the CMS_Document table at the DocumentContent field to find the links to replace. But you then need to look at how to correctly format those links going forward so that you do not need to repeat this process later.
Note:
You need to be really careful when doing this in SQL to make sure that you don't create invalid XML. Things go bad when you do that.
This won't flush your cache, so you'll need to clear your cache manually afterwards.
If you're using out-of-the-box web parts, you should really make a copy of them and use the copy if you're going to modify, this way, you're less likely to have pain in future upgrades.
Typically "content" is not set in a webpart. Webparts are configured to retrieve content from page types. There is an exception to this with specific webparts like Editable Text, Static Text, Static HTML, etc.
The configuration of a webpart is stored at the template level in the cms_pagetemplate table. The configuration for ALL webparts on that page template are stored in the PageTemplateWebParts field. So you'd have to parse through the XML and get the proper webpart and then perform an update on that field. You maybe able to do a regex to find that content and replace it as well.
Not ideal to do this via SQL simply because of version history and it can cause a lot of problems later on. I'd suggest finding out which API calls you can make to perform these updates and write a small program for it.
we are currently building an application on the google cloud platform, which generates reports in Google Doc. For them, it is really important to have a table of content ... with page numbers. I know this is a feature request since a few years and there are add-ons (Paragraph Styles +, which didn't work for us) that provide this solution, butt we are considering to build this ourselves. if anybody has a suggestion on how we could start with this, it would be a great help!
thanks,
Best bet is to file a feature request on the product forums.
Currently the only way to do that level of manipulation of a doc to provide a custom TOC is to use Apps Script. It provides access to the document structure sufficient enough to build and insert a basic table of contents, but I'm not sure there's enough to do paging correctly (unless you force a page break on ever page...) There's no method to answer the question of "what page is this element on?"
Hacks like writing to a DOCX and converting don't work because TOCs are recognized for what they and show up without page numbers.
Of course you could write a DOCX or PDF with the TOC as you'd like and upload as a blob rather than as a Google Doc. They can still be viewed in Drive and such.
In a chrome extension I want to to check each url against a list of possible urls and then perform an action if one of the possible urls is visited. For example if Amazon.com was on the list then anytime a user went to Amazon.com the action would be performed.
There are around 5000 possible urls which are all in a mySQL database and can be outputted to a JSON file.
Should the extension check each url everytime a page is visited by checking the JSON file? Is there anyway of loading the JSON file into the extension? Is there a better way to do this?
You have (at least) two options, depending on the action you'd like to take when a particular URL is visited:
You can encode your filter in a JavaScript object that you load into the extension's background page at startup. The KMOO extension is a good example of how this might work: https://code.google.com/p/chrome-opt-out-extension/source/browse/#svn%2Ftrunk%2Fchrome
If you're injecting content scripts, you can restrict your extension directly in the manifest by adding appropriate filters. See the matches attribute at http://code.google.com/chrome/extensions/content_scripts.html for example.
The first option is probably what I'd recommend. Parsing a large JSON object into a lookup table once at startup isn't terribly expensive, and certainly better than reading it every time you'd like to make a decision.
When do you call Microsoft.Security.Application.AntiXss.HtmlEncode? Do you do it when the user submits the information or do you do when you're displaying the information?
How about for basic stuff like First Name, Last Name, City, State, Zip?
You do it when you are displaying the information. Preserve the original as it was entered, convert it for display on a web page. Let's say you were displaying it in some other way, like exporting it into Excel. In that case, you'd want to export the preserved original.
Encode every single string.
You should only encode or escape your data at the last possible moment, whether that's directly before you put it in the database, or display it on the screen. If you encode too soon, you run the risk of accidentally double encoding (you'll often see & on newbies' websites - myself included).
If you do want to encode sooner than that, then take measures to avoid the double encoding. Joel wrote an article about good uses for hungarian notation, where he advocated use of prefixes to determine what is stored in the variable. eg: "us" for unsafe string, "ss" for safe string.
usFirstName = getUserInput('firstName')
ssFirstName = cleanString(usFirstName);
Also note that it doesn't matter what the type of information is (city, zip code, etc) - leaving any of these unchecked is asking for trouble.
It depends on your situation. Where I work, for years the company did no HTML encoding, so when we started doing it, it would have been almost impossible to find every location within the system that user input could be displayed on the page.
Instead we chose to sanitize input on its way into the system since there were fewer input points than output points. We sanitize immediately before inputting data into the DB, although we don't use Microsoft's AntiXss library, we use a set of homebrew methods that whitelist ranges of HTML tags and characters depending on the type of input.
If you're designing the system from scratch, or you have a system that is small (or managed well) enough to encode output, follow Corey's suggestion. It's definitely the better way to do it.
Encoding is not a property of the data, it is a property of the transport mechanism. Therefore you should unencode data when you receive it, and encode it appropriately before transmission. The transport mechanism determines what sort of encoding is necessary.
This principle holds true whether your transport mechanism is HTML, HTTP, smoke signals, etc. The trick is knowing how to do the types of encoding manually, and when various frameworks do the steps for you automagically. For instance, ASP.NET will encode data assigned to a System.Web.UI.WebControls.Button's Text, but not text assigned to a System.Web.UI.WebControls.Literal's Text. jQuery will encode content you set with .innerText(), but not content you set with .innerHtml().