This is the first step in adding documentation to the core library
of RSS-Bridge. The documentation is not yet extracted by phpdoc,
yet may prove useful to anyone interested in starting with RSS-Bridge.
Commit e26d61e introduced a bug that causes the error message "The
bridge you [sic!] looking for does not exist." if the bridge name
specified in the query ends on "Bridge"
(i.e. '&bridge=SoundcloudBridge'), while other queries work fine
(i.e. '&bridge=Soundcloud').
This commit fixes that issue by sanitizing the bridge name before
creating the class.
References #922
- Move all whitelisting functionality inside Bridge.php
- Set default whitelist once in index.php using Bridge::setWhitelist()
- Include bridge sanitizing inside Bridge.php
Bridge::sanitizeBridgeName($name)
Bridge.php now maintains the whitelist internally.
Also adds documentation to Debug.php!
* Debug::isEnabled()
Checks if the DEBUG file exists on disk on the first call (stored in
memory for the duration of the instance). Returns true if debug mode
is enabled for the client.
This function also sets the internal flag for Debug::isSecure()!
* Debug::isSecure()
Returns true if debuging is enabled for specific IP addresses, false
otherwise. This is checked on the first call of Debug::isEnabled().
If you call this function before Debug::isEnabled(), the default value
is false.
Replaces 'debugMessage' by specialized debug function 'Debug::log'.
This function takes the same arguments as the previous 'debugMessage'.
A separate Debug class allows for further optimization and separation
of concern.
- PATH_LIB_BRIDGES defines the path to bridges
- PATH_LIB_FORMATS defines the path to formats
- PATH_LIB_CACHES defines the path to caches
Include constants in RssBridge.php for consistency
Move CACHE_DIR from index.php to /lib/RssBridge.php and change name
to PATH_CACHE.
PATH_CACHE is one of the core paths of RSS-Bridge and should therefore
be defined in the core file RssBridge.php.
- Remove file documentation and license remark (defined in repository
scope - see README / UNLICENSE)
- Remove example usage (if necessary should be included in the Wiki)
"The require_once statement is identical to require except PHP will
check if the file has already been included, and if so, not include
(require) it again."
-- http://php.net/manual/en/function.require-once.php
Vendor files (simple_html_dom.php and urljoin.php) are included in the
repository and therefore shipped with all releases. If one of the files
is missing, either the repository or the release is incomplete.
PHP will generate error messages if either of the files is missing, so
there is no need to check availability manually unless it is done for
all files (which doesn't make sense because they are part of the
repository).
Adds additional messages to the error log when fetching contents. The
data is helpful in finding issues with receiving contents from servers.
References: #879, #882, #884
* [Exceptions] Don't return header for bridge exceptions
* [Exceptions] Add link to list in exception message
This is an alternative when the button is not rendered
for some reason.
* [index] Don't return bridge exception for formats
* [index] Return feed item for bridge exceptions
* [BridgeAbstract] Rename 'getCacheTime' to 'getModifiedTime'
* [BridgeAbstract] Move caching to index.php to separate concerns
index.php needs more control over caching behavior in order to cache
exceptions. This cannot be done in a bridge, as the bridge might be
broken, thus preventing caching from working.
This also (and more importantly) separates concerns. The bridge should
not even care if caching is involved or not. Its purpose is to collect
and provide data.
Response times should be faster, as more complex bridge functions like
'setDatas' (evaluates all input parameters to predict the current
context) and 'collectData' (collects data from sites) can be skipped
entirely.
Notice: In its current form, index.php takes care of caching. This
could, however, be moved into a separate class (i.e. CacheAbstract)
in order to make implementation details cache specific.
* [index] Add '_error_time' parameter to $item['uri']
This ensures that error messages are recognized by feed readers as
new errors after 24 hours. During that time the same item is returned
no matter how often the cache is cleared.
References https://github.com/RSS-Bridge/rss-bridge/issues/814#issuecomment-420876162
* [index] Include '_error_time' in the title for errors
This prevents feed readers from "updating" feeds based on the title
* [index] Handle "HTTP_IF_MODIFIED_SINCE" client requests
Implementation is based on `BridgeAbstract::dieIfNotModified()`,
introduced in 422c125d8e and
simplified based on https://stackoverflow.com/a/10847262
Basically, before returning cached data we check if the client send
the "HTTP_IF_MODIFIED_SINCE" header. If the modification time is
more recent or equal to the cache time, we reply with "HTTP/1.1 304
Not Modified" (same as before). Otherwise send the cached data.
* [index] Don't encode exception message with `htmlspecialchars`
* [Exceptions] Include error message in exception
* [index] Show different error message for error code 0
Adds a new class 'ParameterValidator' to replace the functions from
'validator.php', separating private functions from 'validateData' to
class private functions in the process.
Instead of echoing error messages, adds messages to a private variable,
accessible via 'getInvalidParameters'.
BridgeAbstract now adds invalid parameter names to the error message.
* Group common selectors
* Fix indentation using tabs
* Use same styles for number and text inputs
* Use grid layout for parameters
Introduces the grid layout for bridge parameters. All parameters are
arranged in a grid to improve readability. Read more on grid layouts
at
- https://www.w3schools.com/css/css_grid.asp
- https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout
Notice:
Grid layouts are not supported in very old browser versions:
https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/CSS_Grid_and_Progressive_Enhancement
This is why @supports checks for browser support (not supported in IE)
https://developer.mozilla.org/en-US/docs/Web/CSS/@supports#Browser_compatibility
In case grid layout is not supported, the displayed form is usable
but not very pretty due to <br> being removed by this commit for
cosmetic reasons (breaks grid layout).
Unfortunately it doesn't seem possible to insert line breaks manually
via '::after { content: '\A' }' in cases where grid layout isn't
supported.
* Add padding to card parameters
Adds padding to parameters to improve readability. For bridges without
parameters (count($parameters) === 0), the parameter 'div' is no longer
created.
* Add colon ':' after label via CSS
* Capitalize first letter of label for readability
* Fix checkbox isn't aligned left
Sets the size of the checkbox to 20x20 px for good measure.
* Harmonize formatting
* Add new style to number and select boxes
References #797
* Add fallback solution for browsers without grid support
* Debug mode improvements
- Improve debug warning message
- Restore error reporting in debug mode
- Fix 'notice' messages for unset fields
* Add parsing utility functions
html.php
- extractFromDelimiters
- stripWithDelimiters
- stripRecursiveHTMLSection
- markdownToHtml (partial)
bridges
- remove now-duplicate functions
- call functions from html.php instead
* [Anidex] New bridge
Anime torrent tracker
* [Anime-Ultime] Restore thumbnail
* [CNET] Recreate bridge
Full rewrite as the previous one was broken
* [Dilbert] Minor URI fix
Use new self::URI property
* [EstCeQuonMetEnProd] Fix content extraction
Bridge was broken
* [Facebook] Fix "SpSonsSoriSsés" label
... which was taking space in item title
* [Futura-Sciences] Use HTTPS, More cleanup
Use HTTPS as FS now offer HTTPS
Clean additional useless HTML elements
* [GBATemp] Multiple fixes
- Fix categories: missing "break" statements
- Restore thumbnail as enclosure
- Fix date extraction
- Fix user blog post extraction
- Use getSimpleHTMLDOMCached
* [JapanExpo] Fix bridge, HTTPS, thumbnails
- Fix getSimpleHTMLDOMCached call
- Upgrade to HTTPS as JE now offers HTTPS
- Restore thumbnails as enclosures
* [LeMondeInformatique] Fix bridge, HTTPS
- Upgrade to HTTPS as LMI now offers HTTPS
- Restore thumbnails using small images
- Fix content extraction
- Fix text encoding issue
* [Nextgov] Fix content extraction
- Restore thumbnail and use small image
- Field extraction fixes
* [NextInpact] Add categories and filtering by type
- Offer all RSS feeds
- Allow filtering by article type
- Implement extraction for brief articles
- Remove article limit, many brief articles are publied all at once
* [NyaaTorrents] New bridge
Anime torrent tracker
* [Releases3DS] Cache content, restore thumbnail
- Use getSimpleHTMLDOMCached
- Restore thumbnail as enclosure
* [TheHackerNews] Fix bridge
- Fix content extraction including article body
- Restore thumbnail as enclosure
* [WeLiveSecurity] HTTPS, Fix content extraction
- Upgrade to HTTPS as WLS now offers HTTPS
- Fix content extraction including article body
* [WordPress] Reduce timeout, more content selectors
- Reduce timeout to use default one (1h)
- Add new content selector (articleBody)
- Find thumbnail and set as enclosure
- Fix <script> cleanup
* [YGGTorrent] Increase limit, use cache
- Increase item limit as uploads are very frequent
- Use getSimpleHTMLDOMCached
* [ZDNet] Rewrite with FeedExpander
- Upgrade to HTTPS as ZD now offers HTTPS
- Use FeedExpander for secondary fields
- Fix content extraction for article body
* [Main] Handle MIME type for enclosures
Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content).
One can force enclosure type using #.ext anchor (hacky, needs improving)
* [FeedExpander] Improve field extraction
- Add support for passing enclosures
- Improve author and uri extraction
- Fix 'notice' PHP error messages
* [Pull] Coding style fixes for #802
* [Pull] Implementing changes for #802
- Fix coding style issues with str append
- Remove useless CACHE_TIMEOUT
- Use count() instead of $limit
- Use defaultLinkTo() + handle strings
- Use http_build_query()
- Fix missing </em>
- Remove error_reporting(0)
- warning CSS (@LogMANOriginal)
- Fix typo in FeedExpander comment
* [Main] More documentation for markdownToHtml
See #802 for more details
[html] Generate index and bridge cards using separate clases
Move HTML generating code from 'index.php' to 'Index.php', separating components into static functions.
Move HTML generation code for bridge cards from 'html.php' to 'BridgeCard.php', separating components into static functions.
Adds detection for servers responding with Cloudflare challenges,
throwing a server error if detected:
"The server responded with a Cloudflare challenge, which is not
supported by RSS-Bridge! If this error persists longer than a week,
please consider opening an issue on GitHub!"
This is supposed to support maintainers to identify broken bridges
for sites with Cloudflare enabled permanently. It doesn't circumvent
the protection in any form or shape!
The Cloudflare challenge is detected by analyzing the last response
header received from the server. If the HTTP Code is not 200 (OK)
and the server name contains 'cloudflare' ('Server: cloudflare'),
RSS-Bridge assumes the server responded with a challenge.
The header parsing is based on https://stackoverflow.com/a/18682872
* Move configuration in its own class in order to reduce the verbosity of index.php
* Add authentication mechanism using HTTP auth
* Add a method to get the config parameters
* Remove the installation checks from the index page
* Log all failed authentication attempts
cURL is a powerful library specifically designed to connect to many
different types of servers with different types of protocols. For
more detailed information refer to the PHP cURL manual:
- http://php.net/manual/en/book.curl.php
Due to this change some parameters for the getContents function were
necessary (also applies to getSimpleHTMLDOM and getSimpleHTMLDOMCached):
> $use_include_path removed
This parameter has never been used and doesn't even make sense in
this context; If set to true file_get_contents would also search
for files in the include_path (specified in php.ini).
> $context replaced by $header and $opts
The $context parameter allowed for customization of the request in
order to change how file_get_contents would acquire the data (i.e.
using POST instead of GET, sending custom header, etc...)
cURL also provides facilities to specify custom headers and change
how it communicates to severs. cURL, however, is much more advanced.
- $header is an optional parameter (empty by default). It receives
an array of strings to send in the HTTP request header.
See 'CURLOPT_HTTPHEADER':
"An array of HTTP header fields to set, in the format
array('Content-type: text/plain', 'Content-length: 100')"
- php.net/manual/en/function.curl-setopt.php
- $opts is an optional parameter (empty by default). It receives
an array of options, where each option is a key-value-pair of
a cURL option (CURLOPT_*) and it's associated parameter. This
parameter accepts any of the CURLOPT_* settings.
Example (sending POST instead of GET):
$opts = array(
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => '&action=none'
);
$html = getContents($url, array(), $opts);
Refer to the cURL setopt manual for more information:
- php.net/manual/en/function.curl-setopt.php
> $offset and $maxlen removed
These options were supported by file_get_contents, but there doesn't
seem to be an equivalent in cURL. Since no caller uses them they are
safe to remove.
Compressed data / Encoding
By using cURL instead of file_get_contents RSS-Bridge no longer has
to handle compressed data manually.
See 'CURLOPT_ENCODING':
"[...] Supported encodings are "identity", "deflate", and "gzip".
If an empty string, "", is set, a header containing all supported
encoding types is sent."
- http://php.net/manual/en/function.curl-setopt.php
Notice: By default all encoding types are accepted (""). This can
be changed by setting a custom option via $opts.
Example:
$opts = array(CURLOPT_ENCODING => 'gzip');
$html = getContents($url, array(), $opts);
Proxy
The proxy implementation should still work, but there doesn't seem
to be an equivalent for 'request_fulluri = true'. To my understanding
this isn't an issue because cURL knows how to handle proxy communication.
* [BridgeAbstract] Implement customizable cache timeout
The customizable cache timeout is used instead of the default cache
timeout (CACHE_TIMEOUT) if specified by the caller.
* [index] Add new global parameter '_cache_timeout'
The _cache_timeout parameter is an optional parameter that can be
used to specify a custom cache timeout. This option is enabled by
default.
It can be disabled using the named constant 'CUSTOM_CACHE_TIMEOUT'
which supports two states:
> true: Enabled (default)
> false: Disabled
* [BridgeAbstract] Change scope of 'getCacheTimeout' to public
* [html] Add cache timeout parameter to all bridges
The timeout parameter only shows if CUSTOM_CACHE_TIMEOUT has been set
to true. The default value is automatically set to the value specified
in the bridge.
* [index] Disable custom cache timeout by default
Providing no value for an optional numeric parameter results in
error "Parameter *** is invalid!"
This is caused by the validation function ignoring the 'required'
attribute when loading and checking input parameters.
This commit adds checks to determine whether the 'required' attri-
bute is defined and active before returning the error message.
References #570:
Whitespace at the beginning of feeds causes parsing errors. This is
an example using an ill-formatted RSS feed:
"XML or text declaration not at start of entity"
-- https://validator.w3.org
This commit automatically removes all proceeding and trailing white-
space from the source content before resume parsing.
Matching whitelisted bridges using a case-insensitive match makes
sense for following reasons:
- Wrong upper/lower case spelling in the whitelist is not easily
discovered. Example: Misspelling 'Youtube' as 'YouTube' will not
show the 'Youtube' bridge (while it is expected to show)
- Two bridges with the same name but different letter casing are
discouraged to prevent confusion and keep the project compatible
with Windows machines
- Do not add spaces after opening or before closing parenthesis
// Wrong
if( !is_null($var) ) {
...
}
// Right
if(!is_null($var)) {
...
}
- Add space after closing parenthesis
// Wrong
if(true){
...
}
// Right
if(true) {
...
}
- Add body into new line
- Close body in new line
// Wrong
if(true) { ... }
// Right
if(true) {
...
}
Notice: Spaces after keywords are not detected:
// Wrong (not detected)
// -> space after 'if' and missing space after 'else'
if (true) {
...
} else{
...
}
// Right
if(true) {
...
} else {
...
}
Add additional information to error message:
- Name of the bridge
- Possible solutions
- Error description
- Error code
- Error message
* Output type changed from 'text' to 'html'
* Added styles for the error page
* Added a button to remotely open a GitHub issue
Closes#525
Re-requesting the same feed in normal mode (not debug mode)
returns the cached version. The name and URI of the feed
however was not returned.
This adds checks to getName() and getURI() in order to return
the cached infos when using the cached version.
Notice: For this to work correctly all bridges must call to
parent::getName() and parent::getURI() respectively if the
queriedContext is not defined. Example:
switch($this->queriedContext){
case 'My context':
// do your stuff here!
break;
default: parent::getName();
}
* add function getExtraInfos() to BridgeAbstract
* replace call to $bridge->getName() and $bridge->getURI() by $bridge->getExtraInfos()
replace call to $bridge->getName() and $bridge->getURI() by $bridge->getExtraInfos() defined by default in BridgeAbstract.
So we could pass additionals ExtraInfos from custom bridges to custom formats.
Previously BridgeAbstract needed to know which exact implementation
of CacheInterface was used (since we only got one right now its
not a problem). Initializing the cache in index.php instead allows
to change cache types more easily.
The function 'prepare' previously implemented in CacheAbstract
is specifically required for FileCache and thus belongs to FileCache.
Since this change removes all code from CacheAbstract, it can be
removed completely.
Method validateData is now afunction in lib/validation.php
validateTextValue, validateNumberValue, validateCheckboxValue
and validateListValue are now anonymous functions
defined in validateData
Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>
Methods displayBridgeCard, sanitize, defaultImageSrcTo are now
functions in lib/html.php
getHelperButtinsFormat and getFormHeader are now anonymous functions
defined in displayBridgeCard
Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>
- returnError, returnServerError, returnClientError ,debugMessage are
moved to lib/error.php
- getContents, getSimpleHTMLDOM, getSimpleHTMLDOMCached are moved to
lib/contents.php
Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>
This function is a copy of the get_cached function from
HttpCachingBridgeAbstract, adding all parameters of
getSimpleHTMLDOM in order to replace the need of
HttpCachingBridgeAbstract entirely
Previously folder hierarchies were created based on the input URL
which could result in very deep folder structures. Using SHA1 file
names also allows to check for old files more effectively (via
fileatime)
This allows to specify the cache duration for a specific
url without the need to delete the cache file first.
Instead the cache file is automatically deleted if the
duration elapsed.
The files have grown to a size where it is necessary to search
for a class in a file. This commit splits the content into one
file per class. RSS-Bridge will require implementations and
the implementations will require (once) the interfaces.
