no issue
- The flag has not been used and can be removed, to make the `members_subscription_settings` JSON record in `settings` table easier to read.
- It used to indicate Stripe configuration being present. Currently that is checked by looking up if Stripe config's `public_token` and `secret_token` values are present (example - https://github.com/TryGhost/Ghost/blob/3.11.0/core/frontend/helpers/ghost_head.js#L54)
no issue
Email template was incorrectly setting up publication icon url in case of subdirectory setup, leading to missing publication logo from newsletter emails in such cases. This adds the fix to use correct absolute url for publication icons in all setups.
no issue
- trying to read a file without the correct permissions would cause a
500 error
- this commit handles the error code and returns an appropriate
response
refs https://github.com/TryGhost/Ghost/issues/11648
- Removes Stripe plan entries from settings that are not formatted correctly.
- Incorrect formatting was caused by a bug in 3.10.0 Admin-Client where it wasn't able to find complimentary plan. Related fix for this here - 9e7a6b801a
no issue
- When created_at value is not provided it should be treated as an empty one instead of trying to import empty string.
- This scenario happens when the column is defined in CSV but no values are present (default parsed value is empty string '')
no issue
- prevent oembed fetching from accessing IP addresses or localhost domains
- prevent oembed endpoint from passing through fetched responses as-is
- reject any fetched data that does not validate against the oembed spec
- strip any unknown properties from the oembed response before returning
Credits: Nick Mykhailyshyn
no-issue
Essentially only active users should have their permissions loaded, this
means that suspended or inactive users are stripped of all permissions
until their status is changed.
closes#10323
* Fixed usage of hasMany for user->session
* Refactored changePassword to async function
* Deleted all user sessions when password changed
* Tested for session retained after password changed
* Added the session to the frame
* Skipped the current session when changing password
no issue
- Made date formatting coherent with the one used in API and the exporter
- Using JSON.stringify() here because that's exactly how API is getting it's formattting done atm
fixes#11636
- malformed URLs passed to oembed API would cause `got` or `metascraper`
to throw an error and this would result in a 500 error from Ghost
- this commit catches the errors and returns a reasonable response
no issue
- Adds 'GET /members/:id/signin_urls' endpoint to Admin API allowing to fetch login URL for member. This URL allows to log in as a member which is useful in situations when you need to impersonate a member (for example to debug some issue they are having)
- Added member_signin_urls permission with migrations. Only the "Owner" user can read "signin_urls" resource. Admin and other users will be denied access
refs 91984b54ca
- For request effieciency we should be using a minified file just like we did previously with `ghost-sdk.js`
- Modified 'max-age' caching header to 1 year for both minified and non-minified files as thay won't affect dev environment and should be beneficial for self-hosting instances that don't use minification
- Along the way corrected an extra 301 redirect because `/public/member.js` path wasn't using a bakslach in the end.
no issue
- This functionality allows member to update their billing information, like credit card information.
- Adds handler to update Stripe billing when element with `data-members-edit-billing` attribute is present on the page. Additional `data-members-success` and `data-members-cancel` attributes could be used to control the redirects on billing update success or failure. They work in the same fission as for 'members-plan' (https://ghost.org/docs/members/checkout-buttons/#redirects)
no issue
The email data attached to a post when published with send email flag was not filtered on member access, and picked up the whole member list for email data. This resulted in incorrect data stored in emails table even in case of paid-members-only publish, and also incorrect count of "emails sent" being displayed on Admin.
NOTE: The actual emails being sent are still gated by member access, so no emails were sent to anyone without access, this only affected the associated email data and count. Also, the fix here will show correct email sent status for any future post, but will still show incorrect data for any already published posts as the email data in DB is already wrong and will probably need a migration
no issue
- After investigating effects of allowing editing email there were no significant blockers found, so there is no reason not to allow editing this field
no issue
- This field is usefult when importing from external sources.
- The date format should be compatible with one used internally by Ghost which is RFC 2822 compliant format
refs https://github.com/TryGhost/Team/issues/243
- uses `member.toJSON()` to add a computed `avatar_image` property
- if the member has an email address and gravatar is not disabled then we generate a gravatar url using the `?d=blank` parameter to return a transparent image if the member's email has no gravatar
no issue
- 3.6.0 contained incorrect references in the `schema.js` file for the `members_label` table that was added in that version. On MySQL knex created a foreign key constraint for that reference which stopped member labels from being createable
- this fixes the schema file and has a migration to drop and recreate the table. Knex handles removal and addition of foreign keys during table drop/create
no issue
- When importing through CSV we should remain the defaults of 'subscribed' fields (`true` at the moment), unless it is explicitly set to `false` or `FALSE` (the latter uppercase value often comes from scpredsheets)
no issue
- some errors weren't being reported because they were being passed to
Sentry before our middleware could populate the error information
- this commit inserts the Sentry middleware into these steps
no issue
- when `servePublicFile` middleware serves an image it resulted in a "Cannot set headers after they are sent to the client" error because `next()` was erroneously called for successful requests which then tripped the `prettyUrls` middleware which tries to perform a redirect
- only calling `next()` when an error is present allows errors to be picked up by later middleware but successful requests end in the `servePublicFile` middleware
no issue
* Updated sendEmailWithMagicLink syntax
* Updated label name selection from theme
* Updated migration version for labels
* Added labels to export/import of members
* Added member labels sanitization for case-insensitive duplicates
* Fixed tests
* Fixed label serialization bug on import
* Bumped @tryghost/members-api to 0.15.0
* Fixed lint
* Cleanup
no issue
We missed handling `undefined` values for fields during csv export for memebrs, which causes csv entries as `undefined` for fields that don't exist. It also added need for extra handling of `undefined` entries during csv import. This PR fixes the bug by properly handling empty/undefined values in export
no issue
- When new Ghost instance is initialized "Complimentary" plan doesn't have to wait for the rest of plans to be configured.
- Without configured plans the admin would still be able to assign "Complimentary" plan to members or import same kind of members.
- There is no error handling at the moment when plan initialization fails, that's why it was very confusing when all of the sudden it wasn't possible to create a member record
closes#11589
- `findOne` method in destroy method was usinng wrong options object (unlinke read method id comes from frame.options not frame.data) thus this was causing 404 errors
- The filename is returned to be able to fetch the backup on demand
- Wasn't able to limit exported tables as exporter doesn't support such functionality
no issue
- serving of our public asset images was broken
- we were reading the binary file in as a string so we could do url transforms, this meant data was lost/corrupted and browsers could not display the served data
- we were using the wrong mime-type for pngs which meant browsers were triggering downloads rather than displaying images (at least when accessed directly)
- updates uses of `servePublicFile` to have the correct png mimetype
- adjusts `servePublicFile` to treat any mime type starting with `image` as a binary file, passing the file directly through express using `res.sendFile` and skipping the in-memory content caching which is mostly only useful for text files with URL transforms
no issue
- When importing large batches of members we should not allow for unlimited amount of parallel requests created as this might lead to connection pool problems and reaching API rate limits (for example Stripe API is limited to 100 req/s)
no issue
- if a request was sent for an resized image URL that didn't contain a
file extension, the code would eventually end up throwing a 500
- this commit checks for this case and returns a 404
no issue
- New fields that are accepted through members CSV import endpoint are:
- `subscribed_to_emails` - corresponds to `subscribed` flag in API
- `stripe_customer_id` - links existing Stripe customer to created member
- `complimentary_plan` - flag controlling "Complimentary" plan subscription creation for imported member
- Noteworthy exception in field naming - `subscribed_to_emails` that corresponds to `subscribed` API flag present on members resources. It's a special case of CSV format, where users can be less technical it's more explicit to what the flag does (also the same naming is applied in the Admin UI)
- Failing to either link Stripe customer or assign "Complimentary" subscription to imported member behaves in a transaction-like manner - imported record is not created in the database. This is needed to be able to retry imports when it fails for reasons like connectivity failure with Stripe or Stripe miss-configuration.
- To avoid conflicts with linking same Stripe customer to multiple members there is a special handling for duplicate `stripe_customer_id` fields. Records with duplicates are removed from imported set.
This reverts commit 6e024331eb.
Temporarily reverting whilst we investigate an issue with Sentry and running Ghost via Ghost-CLI.
Ghost-CLI initiated boot was failing when Sentry was installed due to what appears to be `process.cwd()` returning `undefined` here https://github.com/TryGhost/Ignition/blob/master/lib/config/index.js#L26
no issue
- We need a way to simulate "premium" membership without any payment from members' side. For this new "Complimentary" plan is introduced
- Allows `comped` flag as an input only on `PUT /members/:id` endpoint which sets free subscriptions based on "complimentary" plan on the member
- Added `comped` flag to members endpoint responses
- Bumped members-api to 0.12.0. This version supports new set/cancel complimentary subscription methods
no issue
- This helper allows to format currencies that use decimal normalization. For example 19.35 USD is served as 1935 from the API which always needs to be divided by 100 to get a dollar ammount.
no issue
- the `hr` mobiledoc card does not specify an `absoluteToRelative` or `relativeToAbsolute` transformer function so falls back to the default transformer
- the default transformer function's arguments were not correct which meant that the UrlUtils object was replacing the card's typical empty-object payload
- the card's payload changing when saving mobiledoc was triggering the editor's unsaved changes warning because the API response no longer matched what was in the editor
no issue
- requests for resized images with a trailing slash would end up
throwing a EISDIR error because it got through to writing an
image buffer to a directory
- we want to cut this off early and disallow trailing slashes
refs https://github.com/TryGhost/Ghost/pull/11499
- Removed unused and confusin isPaymentConfigured because it was basing it's logic on old `isPaid` flag. Having it in the codebase was adding confusion.
- `isPaid` config flag still needs a proper cleanup with a migration etc.
- Added little post PR merge cleanup
no issue
- a request for a filename longer than those allowed by the filesystem produced a ENAMETOOLONG error, which would end up becoming a 500 error from Ghost
- this catches the error and returns a HTTP 400 Bad Request response
refs https://github.com/TryGhost/Members/pull/105
- As members module has become a core part it makes sense to follow the same principles as in all other controllers and use the model directly instead of calling external services.
- Bumped @tryghost/members-api to 0.11.1 . New stripe-specific methods used in controllers are available starting with this version
- Exposing these new methods is a little hacky because there are no relationships setup on members_* tables. Left notes for future improvements once relations are introduced.
- We don't allow for chaging member's emails at the moment. For this reason had to modify JSON schema a little. It doesn't support OO inheritence: "This shortcoming is perhaps one of the biggest surprises of the combining operations in JSON schema: it does not behave like inheritance in an object-oriented language. " (ref. https://json-schema.org/understanding-json-schema/reference/combining.html#allof)
refs c059e8e32e
- Reason why the refactor was needed can be found in refed commit
- The logic was extracted into members-api through passing models
directly as member-api module constructor parameters
- Bumped @tryghost/members-api to 0.11.0. Needed to work after the
refactor
refs https://github.com/TryGhost/Ghost/issues/10471
- Allow page resource endpoints to accept HTML source. This behavior is the same as the post's resource introduced with e9ecf70ff7372f395b8917340805148bc764e2ef
- The functionality was most likely missed when post split into posts & pages was happening.
- Added symmetric changes to API v2.
refs https://forum.ghost.org/t/plaintext-value-is-empty-using-the-api/10537
- The `plaintext`/`html` fields were empty because `visibility` attribute was not present in response body on output serialization stage. `visibility` field is always needed for content gating to work as expected
- Added `visibility` field in the input serialization layer as it wouldn't be possible to use content gating if added on model layer through `defaultColumnsToFetch`
- Added test cases covering a bug
no issue
Since we added `email_subject` to `posts_meta` table in `3.1`, the migration tries to add `email_subject` column from post table, which does not exist and thus tries adding `undefined` value for column. Since sqlite expects default values while inserting new columns, this breaks any migration directly from `1.x`/`2.x` to 3.x.
The fix adds a default `null` value for any post_schema entry which doesn't has a value.
refs https://github.com/TryGhost/Ghost/issues/11461
- The email feature was introduced in API v3 and is not back compatible with API v2. These fields should not appear in any v2 responses.
- Added regression tests for API v2 so that cases like this are spotted
easier in the future.
refs https://github.com/TryGhost/Ghost/pull/11462
Allows `comment_id` and `uuid` to be passed in post `add`/`edit` API calls instead of failing requests with validation error, though both properties are stripped out in serializer as we don't allow editing them.
no issue
- The helper allows generating HTML needed to cancel or continue the member's subscription depending on subscription state.
- Added public members endpoint to allow updating subscription's `cancel_at_period_end` attribute available at: `PUT /api/canary/members/subscriptions/:id/`
- Added client-side hook to allow calling subscription cancellation. Allows to create elements with `data-members-cancel-subscription` / `data-members-continue-subscription` attributes which would call subscription update.
- Updated schema and added migration for `current_period_end` column
- As discussed we only add a single column to subscriptions table to avoid preoptimizing for future cases
- Added {{cancel_link}} helper
- Added error handling for {{cancel_link}} when members are disabled
- Added test coverage for {{cancel_link}} helper
- Bumped @tryghost/members-api version to 0.10.2. Needed to use `updateSubscription` middleware
- Bumped gscan to 3.2.0. Needed to recognize new {{cancel_link}} helper
no issue
- This includes the interface change for members-api constructor - now accepts the member's model instead of proxy methods. These methods have been moved ton @tryghost/members-api in favor of using the model directly (ref: https://github.com/TryGhost/Members/pull/105)
- Moved error handling from the service layer to controller
- Bumped @tryghost/member-api package to 0.10.0
no-issue
Our function for determining cors options created a new instance of URL
without wrapping it in a try/catch which meant any failures to parse the
URL bubbled down as a 500 error.
500 errors are commonly used for alerting at the infrastructure level,
and this error is definitely one caused by a badly configured client, so
we wrap the construction and crap out with a Bad Request Error (HTTP
400) if it fails.
no-issue
This name `login` was misleading as this middleware didn't login
members, that was handled by the `authentication` middleware,
specifically `exchangeTokenForSession`
no issue
- Secondary navigation means most nav concepts are supported, e.g. header & footer, or left & right
- The UI is added separately, this PR adds supporting concepts:
- make sure the default value is an empty array
- add support in the API (v3 only)
- add handling in the navigation helper
no issue.
- "[Test]" being appended (at the end of) the test email subject made it hard to scan for test emails. This fixes it by prepending "[Test]" to the subject.
Adds transaction support to `fetchPage` method. This is needed to be able to count members during the post publish transaction.
This is the next iteration over initial quick-fix: 90905b0212
* Added transaction support to pagination plugin
- This support is needed to be able to use `fetchPage` method in transactional context (example usecase was counting members when publishing post for emails)
* Passed transaction related options during email creation
- Without this SQLite would hang in a transaction and eventually timeout
* Updated parameter name for consistency
no issue
We changed `reschedule` event to trigger adapter's `unschedule` and `schedule` methods since we now generate separate tokens(urls) for consistency as two different url(token) is needed to complete the reschedule functionality.
no issue
The default scheduling generates a known, independent URL for publishing a resource. In case of resource being rescheduled or unscheduled, the adapter expects the the same URL to remove/update existing jobs. The URL includes a JWT token for API auth which is calculated from post model and appended to URL.
There was a bug in token generation which meant If we go to update or delete the job i.e. unschedule a post then a new token is used which means the existing scheduled job cannot be removed. This PR:
- removes issued at (`iat`) timestamp from token generation which lead to a different token being generated for same payload
- Fixes timestamp being used for URL calculation from resource model
no issue
- the schedules controller wraps the post creation in a transaction
- we need to pass that transaction through to all other queries, especially on sqlite where a non-transaction query inside a transaction will lock up because there's only 1 connection available
- updates our model method calls to pass through the transaction options
- switches the members service `list()` call to a direct model `findAll()` call to avoid going through our pagination plugin because the raw knex query does not respect the transacting option
no issue
- additional migration for the column added since the last 3.1 beta release to allow beta upgrades without rollbacks
- will be a no-op for upgrades from 3.0 as it's covered by `3.1/05-add-emails-table.js`
We want to allow admin users to trigger a retry of failed emails without having to go through the unpublish/republish dance.
- fixed resource identifier in email permissions migration so email permissions are added correctly
- added new email permissions migration so that beta releases can be upgraded without rollback (will be a no-op for any non-beta upgrades)
- added `/emails/:id/retry/` canary Admin API endpoint
- follows same URL pattern as theme activation
- only triggers mega service retry endpoint if the email has a `'failed'` status
no issue
- In order to keep site/app.js module tidy and less coupled with members module we need to extract some of the functionality where it belongs conceptually
- Added "members enabled check" middleware to stripe webhook endpoint
- Reshuffled members middleware so that siteApp is in control of mounting points. This is meant to be a more explicit way to see which endpoints are being handled by members middleware
- Extracted member-specific public file middleware
- Unified use of `labs.member` alias method. Done for code style consistency
- Added basic members' test suite. This is a base we could work from when more modifications are needed
- Removed route handler for unexisting members file "members-theme-bindings.js". Calling this route otherwise causes a 500. Looks like a leftover from 49672a1e4d
no issue
- a 401 is received from Mailgun when invalid credentials are used but the default error message of "Forbidden" is not particularly useful
- intercepts "Forbidden" and swaps it for "Invalid Mailgun credentials" to be more user-friendly
no issue
- When whole email batch fails we want to allow retrying sending a batch when post is republished
- Refactored naming for email event handling in mega
no issue
- Increased default mailgun retry limit to 5
- Handling retry logic closer to SDK layer gives less future manual handling
- Allowed failing request to be passed through to the caller
- To be able to handle failed requests more gracefully in the future we need all available error information to be given to the caller
- The previous method with `Promise.all` would have rejected a whole batch without providing details on each specific batch.
- Limited data returned with a failed message to batch values
- Added better error handling on mega layer
- Added new column to store failed batch info
- Added reference to mailgan error docs
- Refactored batch emailer to respond with instances of an object
- It's hard to reason about the response type of bulk mailer when multiple object types can be returned
- This gives more clarity and ability to check with `instanceof` check
no issue
- adds new router to the frontend for handling unsubscribe
- default template lives in `core/server/frontend/views/unsubscribe.hbs`
- `{{error}}` is present and contains the error message when unsubscribe fails
- `{{member}}` is present and contains the member email
- updated unsubscribe url to match the new format
no issue
- having a `send_email_when_published` property on the Post resource that only has an effect at certain times was confusing and was causing issues with clients that needed to know details of how that toggle worked
- makes `post.send_email_when_published` a fully read-only property in the API
- adds support for `?send_email_when_published=true` query param that can be passed in POST/PUT requests to the posts endpoint when scheduling or publishing a post - this is the only way to set `post.send_email_when_published` to `true`
- adds handling to ensure that `post.send_email_when_published` is always reset to `false` when reverting a post back to a draft _unless_ an email has already been sent
no issue
- The switch is needed so that mailinglist work when posts are scheduled
- v3 API is the default stable API that should be preferably used by all clients (including Scheduler)
no issue
Adds 2 new dynamic calculated fields on bulk email settings -
`isEnabled` - If mailgun is configured either with config or admin settings
`isConfig` - If mail is configured via config directly
no issue
Mailgun expects `recipient-variables` to be a json object and fails to attempt sending the message in case its undefined, which is the case for test emails as they don't have member `uuid` or `unsubscribe` url. This sets a default empty object for `recipent-variables` in case of no data.
no issue
- The limitation on Mailgun side of API seems to be 1000 emails per message.
- The only place where I could find a hard limit of 1000 emails per
batch was this PHP SDK issue: https://github.com/mailgun/mailgun-php/issues/469
- To store ids of sent messages introduce a mega column on the emails table. They can be synced with stats or other metrics during even pooling in the future
- Removed redundant `join(',')` statement.The SDK accepts an array of emails as well. Less code - better code :)
no issue
- Tagging needs to be added to be able to group/filter sent messages for various reasons. An example use case is when multiple Ghost instances use the same mailgun account
- Tag value can be provided as a part of config.json file under
`bulkEmail.mailgun.tag` key
no issue
- Fixed default email property output when the empty value is returned
- This is needed for consistency with other endpoint properties like primary_tag which are null when there is no value assigned
- Updated acceptance tests to handle email property
- Schema had to be updated to not use reference so that the information about email can be independent of the post - can still exist if the post is deleted
- Renames were done as that suits how emails would be handled by the bulk email handler
- These statuses are only for internal representation of the state and don't represent what happens to emails delivery-wise
- There is no need for 'sent' status as emails are "never done" and stats wold be checked for stats field would be used to check on details of the status
- This is a fairly temporary state
- It at least removes the themeService require from inside the routingService
- Requires us to pass the routingService the desired API Version...
- We're working towards having the entire frontend respect the theme API version by having it passed around everywhere
fixes#11343
- solves the case where themes depends on old labs flags that are now always false, but the DB still has the feature set to true
- add concept of deprecated labs flags to the labs service
- make sure that the labs service gets used in our theme middleware
- added tests and other small fixes
no issue
- Sends formatted email to members
- Added css inlining support for MEGA template
- Migrated MEGA service to use API serializers
- Service needs to be compliant with the API to be able to serve absolute URLs for resources like images
- Fixed send email check for previously sent mails
no issue
- member model emits a `member.edited` event on update
- webhooks service listens for `member.edited` event and will trigger any registered hooks
no issue
- Using members.js naming for the file was a bad choice and lead to some false signals when doing a cleanup. `post-gating` is more explicit and to the point of what the module is responsible for
no issue
- the members output serializer was passing model objects through on `frame.response` but the webhooks serializer doesn't know how to deal with those
- adjusting the output serializer to use a mapper as per the other serializers means that POJOs are being passed through which allows the webhook serializer to correctly pick out the changed attributes
refs https://github.com/TryGhost/Ghost/pull/11270
- Fixed 3.0/11-update-posts-html migration which failed in scenario when more than 999 posts with posts_meta relation were present
- The issue was originally spotted here: https://github.com/TryGhost/Ghost/pull/11270#issuecomment-546248308
- The main problem is in the `SELECT` statement which is generated for `findAll` method in Bookshelf which creates `WHERE IN(post_ids_here)` statement with all posts in the database
- Using knex directly as that's a preferred way to write migrations (does not depend on the model layer)
no issue
- reserved slugs get in the way of creating pages such as `/signin/` which do not currently exist and are useful for members
- the reserved slugs concept is a little meaningless because if there are any route clashes then our own routes should always win out over a post slug
refs https://github.com/TryGhost/Ghost/issues/11298
The members export admin API by default paginates the result and only returns upto 15 members. This allows passing `limit` param to the API and allows passing `limit=all` to fetch all members in result.
closes#11263
- Fixed `3.0/05-populate-posts-meta-table.js` migration failure when having >999 posts with metadata in the database
- The issue here is with hitting SQLite's internal SQLITE_LIMIT_VARIABLE_NUMBER limit when updating with a large amount of posts having metadata fields set (ref.: https://sqlite.org/limits.html#max_variable_number)
- Transforming migration to iterative method avoided inserting lots of records at once
no issue
When using certain proxy setups that result in `host` and `x-forwarded-host` being different, it became impossible to access Ghost because all routes showed generic 404 pages.
- `vhost` module that we are using to separate front-end and admin urls does not use express' `req.hostname` so it does not pick up the `x-forwarded-host` url that express' `'trust proxy'` config gives us
- switched to the forked `@tryghost/vhost-middleware` package which has a one-line change to use `req.hostname || req.host`
- added `'trust proxy'` config to the admin express app and switched to using `req.hostname` in our redirect code to avoid infinite redirect loops
no issue
We split `posts` table into 2 in v3 with a new `posts_meta` table. Since migrations always use the version of code which is being migrated to - in this case the Post model - which in v3 relies on the posts_meta table, `2.x` migrations relying on post model will fail as it doesn't exist in the expected state. This PR updates all 2.x migrations using `models.Post` to use knex queries directly to access database and perform operations.
no-issue
We have to wrap this in a check to make sure that `page` property is
only returned if either:
A) No `fields` param is passed (send back all fields)
B) `fields` param is passed AND it includes the `page` field
- outputting so much information makes debug less useful
- node debugger should be used for tracing values through the system,
debug() is for more generally following logic and timing
- removed debugs that output large objects
- added consistent debugs for api methods
- a couple of other tweaks for easier understanding of what's happening on a request
no issue
We added 2 new member subscription settings - `allowSelfSignup` and `fromAddress`- with defaults as `true` and `noreply`, this migration sets default values for both settings for users migrating from previous version and cleans up intermediate naming for `allowSelfSignup`.
no issue
Since we removed subscribers code in v3, we cannot use `models.Subscribers` for migration, and instead switch to using db directly for fetching existing subscribers before migrating them to members.
* Added from parameter for member emails
no issue
- Passed in the `from` parameter when initializing members mailer to be able to customize outgoing address
- Extends GhsotMailer to accept a from parameter from the outside
no issue
- Ghost 1.x stored markdown cards with the name `card-markdown`, this was changed in Ghost 2.x to be `markdown`. To keep compatibility with the older mobiledoc content the `markdown` card was aliased using a straightforward `Object.assign()`. Unfortunately this failed to work adequately when the url transformation functions were added to cards and resulted in corrupted data being returned in API responses
- moved the markdown card definition into a factory function so that a clean card definition object can be used for both the `markdown` and `card-markdown` cards
