Log Message:
rspamd: update to 2.1

pkgsrc changes:
---------------
  * Change BUILDLINK_TRANSFORM to BUILDLINK_FNAME_TRANSFORM to appease
    pkglint.
  * Add c++ to USE_LANGUAGES because the configure step failed.

upstream changes:
-----------------
2.1: 28 Oct 2019
  * [Conf] Update neural.conf
  * [CritFix] Fix dkim verification for multiple headers listed
  * [Feature] Add support of uudecode
  * [Feature] Allow to explicitly set events backend
  * [Feature] Implement configurable limits for SPF lookups
  * [Feature] Lua_scanners: Use lua magic for inclusion/exclusion logic
  * [Feature] Multimap: Do not check files in office archives
  * [Feature] Neural: Add sampling when storing training vectors
  * [Feature] SPF: Allow to disable AAAA checks in configuration
  * [Feature] Spf: Add limits configuration support
  * [Feature] Store etag in cached HTTP maps + better logging
  * [Feature] Support segwit BTC addresses, fix LTC verification
  * [Feature] Support uuencoding
  * [Fix] Add configurable number of threads for OpenBLAS
  * [Fix] Add workaround for ragel 7 in hyperscan related maps code
  * [Fix] Another fix for numeric urls parsing
  * [Fix] Correct EMA time calculations
  * [Fix] Do not treat archives as text
  * [Fix] Do not use strdup on data extracted from lua
  * [Fix] Fix a failure calcuating URL reputation.
  * [Fix] Fix crash due to constructors init order
  * [Fix] Fix crash on parts with no cd
  * [Fix] Fix empty prefilters that require mime structures
  * [Fix] Fix event loop creation
  * [Fix] Fix issues sending DMARC reports.
  * [Fix] Fix misprint
  * [Fix] Fix saving of the file maps
  * [Fix] Fix size calculations when converting from utf16
  * [Fix] Fix support of disable_monitoring in rbl
  * [Fix] Fix use-after-free
  * [Fix] Fix zip files check to relax requirements
  * [Fix] Important hiredis fixes
  * [Fix] Lot's of fixes in maps check logic
  * [Fix] Lua_tcp: Deal with temporary fails on write
  * [Fix] Lua_tcp: Make write errors fatal and rework error handlers
  * [Fix] Meta: Filter some more values
  * [Fix] Neural: Add protection agains infinities
  * [Fix] Oops, fix math.huge invocation
  * [Fix] Plug memory leak
  * [Fix] Sigh, another email to string fix
  * [Fix] Try to fix another ownership race in ssl connection
  * [Fix] Uuencode: Fix parsing of corrupted uuencode
  * [Fix] lua_scanners - razor rename need_check function
  * [Rework] Require CMake 3.9 to work, remove manual lto crap

2.0: 11 Oct 2019
  * [Conf] Add BROKEN_HEADERS_MAILLIST composite
  * [Conf] Add path to greylist-whitelist-domains.inc
  * [Conf] Clarify documentation in the config files
  * [Conf] Introduce maps.d directories
  * [Conf] Log settings id by default
  * [Conf] Make LEAKED_PASSWORD_SCAM a composite rule again
  * [Conf] Move all surbl/emails rules to rbl
  * [Conf] Register new Spamhaus codes
  * [Conf] Remove configs for deleted modules
  * [Conf] Remove surbl parts, fix hash_format attribute
  * [Conf] Show autolearn sample
  * [Conf] Slashing: Change default stats backend to Redis
  * [Conf] Surbl: Utilise new `check_emails` option
  * [Conf] Update header
  * [Conf] Use multi-prefixes RBLs in the default config
  * [CritFix] Deal with case-sensivity in Content-Disposition parser
  * [CritFix] Eliminate old endpoint
  * [CritFix] Fix case sensivity when parsing Content-Type
  * [CritFix] Fix loading of DKIM public keys
  * [CritFix] Fix procesing of urls
  * [CritFix] Fix whitelisting when both spf and dkim are required to be valid
  * [CritFix] Langdet: Fix language detection where no stop words found
  * [Feature] Add description to the groups
  * [Feature] Add limit for number of URLs in Lua
  * [Feature] Add logging of groups to the log_format
  * [Feature] Add lua_smtp library
  * [Feature] Add maps cache and type refinement
  * [Feature] Add p0f scanner
  * [Feature] Adopt emails module to use lua_maps
  * [Feature] Allow options matching in composites
  * [Feature] Allow selectors in rbl module
  * [Feature] Allow to output group results
  * [Feature] Asn: Allow to use bgpdump when NET::MRT is broken
  * [Feature] Calculate tokens occurrences distribution
  * [Feature] Clickhouse: Add authenticated user and settings id columns
  * [Feature] Clickhouse: Store groups data
  * [Feature] Clickhouse: Utilise LowCardinality feature
  * [Feature] Implement Redis prefixes registration logic
  * [Feature] Implement settings id propagation between deps
  * [Feature] Improve AV results caching
  * [Feature] Improve autolearning
  * [Feature] Improve logging locking logic (remove it actually)
  * [Feature] Improve settings processing
  * [Feature] Langdet: Limit number of stop words to be checked
  * [Feature] Libucl: Allow to sort keys in ucl objects
  * [Feature] Lua_config: Extend get symbols method
  * [Feature] Lua_maps: Allow static maps for key-value pairs
  * [Feature] Lua_mimepart: Add function filter_words
  * [Feature] Lua_selectors: Add `words` selector
  * [Feature] Lua_selectors: Add sort and uniq transform functions
  * [Feature] Lua_selectors: Allow table arguments for selectors
  * [Feature] Lua_tcp: Add preliminary support of SSL connections
  * [Feature] Lua_trie: More flexible API
  * [Feature] Lua_util: Add filter_specific_url function
  * [Feature] Lua_util: table_digest can now recursively traverse tables
  * [Feature] Maillist: Improve detection
  * [Feature] Maps: Allow caching for complex maps
  * [Feature] Monitored: Support random lookups
  * [Feature] Multimap: Add combined maps prototype
  * [Feature] Multimap: Add dependend maps via redis keys selectors
  * [Feature] Multimap: Allow multiple email addresses matches
  * [Feature] Multimap: Also check detected charset when do filename checks
  * [Feature] Output number of messages processed to proctitle
  * [Feature] Perform clean SSL shutdown
  * [Feature] Performance: Do not use base64 SIMD version for bad inputs
  * [Feature] RBL: Support bit results in replies
  * [Feature] RBL: Support type specific prefixes
  * [Feature] Ratelimit: Consider number of SMTP recipients
  * [Feature] Rbl: Add ability to check urls
  * [Feature] Rbl: Add resolve_ip based RBLs
  * [Feature] Rbl: Make config checks much more strict
  * [Feature] Rbl: Support per-rule whitelists
  * [Feature] Rbl: Support process script
  * [Feature] Rbl: Support replyto addresses
  * [Feature] SURBL: Allow to check email domains
  * [Feature] Selectors: Add `list` generator
  * [Feature] Selectors: Add `specific_urls` extractor
  * [Feature] Selectors: Add flatten function
  * [Feature] Selectors: Support filter_map and apply_map functions
  * [Feature] Store Clickhouse data outside of lua alloc
  * [Feature] Support caching for encrypted files and macros
  * [Feature] Support images when extracting urls
  * [Feature] Support more hyperscan flags
  * [Feature] Support protocol flags
  * [Feature] URL: Apply stringprep to hostnames to filter garbage
  * [Feature] Upstreams: Add lazy resolving logic to all upstreams
  * [Feature] Upstreams: Set noresolve flag on numeric upstreams
  * [Feature] Use `scores` in apply section
  * [Feature] Use maps logic from lua_maps for multimap
  * [Feature] Use random monitored in rbl module
  * [Feature] lua_scanners - add Razor support
  * [Fix] Add another safe-guard in urls processing
  * [Fix] Add debug to ssl, fixed write hangs
  * [Fix] Add missing groups to C callback symbols
  * [Fix] Add more checks for ghosts symbols
  * [Fix] Allow to enable or add new actions via settings
  * [Fix] Allow to set 0 size for spf/dkim caches
  * [Fix] Another bunch of fixes towards protocol mess
  * [Fix] Another fix to deal with bad URLs
  * [Fix] Arc: Another bunch of fixes for arc signing
  * [Fix] Arc: More arc signing fixes
  * [Fix] Avoid another overflow in fpconv
  * [Fix] Clickhouse: Fix quoting
  * [Fix] Clickhouse: Fix retention query quoting
  * [Fix] Distinguish empty and non-empty prefilters
  * [Fix] Distinguish remote and local addrs parsing
  * [Fix] Do not assert if length of sig is bad, just fail verification
  * [Fix] Do not assert if we have broken mime boundary in the headers
  * [Fix] Do not call implicit strlen to avoid issues
  * [Fix] Do not count images urls when checking url regexps for compatibility
  * [Fix] Do not output rbl suffix in symbol option
  * [Fix] Do not use config pool to avoid issues with double reload
  * [Fix] Do not use ephemeral string
  * [Fix] Do not use lightuserdata for traceback
  * [Fix] Do not use priority in metric registration
  * [Fix] Emails: Check email sanity before testing on BL
  * [Fix] Emails: Fix misprint in key name
  * [Fix] Escape utf in regexp to dodge ragel/hyperscan issue
  * [Fix] Extend task_timeout to postfilters stage
  * [Fix] Fix ARC signing after fixing another bug in it...
  * [Fix] Fix AV scan logic
  * [Fix] Fix DMARC_NA behaviour in case of no valid policies
  * [Fix] Fix LRU hash iteration logic
  * [Fix] Fix alignment mess
  * [Fix] Fix configuring symbols without scores
  * [Fix] Fix disabling of the actions
  * [Fix] Fix dkim signing exceptions
  * [Fix] Fix embedded images linking logic
  * [Fix] Fix events leak
  * [Fix] Fix eviction corner case
  * [Fix] Fix fuzzy image score calculation #2962
  * [Fix] Fix hang in fuzzy_learn when explicit rotation is set
  * [Fix] Fix headers propagation logic
  * [Fix] Fix hearbeats restart issue
  * [Fix] Fix history reset
  * [Fix] Fix log parameter
  * [Fix] Fix lua_ip_equal logic
  * [Fix] Fix more issues with nested messages + tests
  * [Fix] Fix normalization of non-alphabet based languages
  * [Fix] Fix offsets when parsing message/rfc822 in multipart
  * [Fix] Fix options in rbl symbols
  * [Fix] Fix out of bound access in lua logger
  * [Fix] Fix out-of-bound read in qp decode
  * [Fix] Fix parent CTE propagation
  * [Fix] Fix parsing of the received headers with empty part
  * [Fix] Fix pending checks for events
  * [Fix] Fix printing of NULL pointer with fixed length
  * [Fix] Fix race condition in watcher handler
  * [Fix] Fix read-after-end in quoted printable decoding
  * [Fix] Fix redis sentinel support
  * [Fix] Fix registry leak in case of DNS errors
  * [Fix] Fix reload logic
  * [Fix] Fix sending of large entries via HTTPS
  * [Fix] Fix settings reload
  * [Fix] Fix some more corner cases for fpconv
  * [Fix] Fix trie code when there are regexps and Hyperscan is absent
  * [Fix] Further fixes to printing of the FP numbers
  * [Fix] Fuzzy_check: Fix timeouts
  * [Fix] Grrr, fix empty ip case
  * [Fix] Html: Fix processing of fjlig entity
  * [Fix] Lang_det: Try better to distinguish Chinese and Japanese
  * [Fix] Lua_mime: Fix reversed extensions map
  * [Fix] Lua_task: Fix message-less API
  * [Fix] Lua_tcp: Report connection failures
  * [Fix] Lua_tcp: Various fixes and debugging improvements
  * [Fix] Metadata_exporter: This plugin is idempotent not a postfilter
  * [Fix] More fixes to extract_specific_urls
  * [Fix] More stages fixes
  * [Fix] Neural: Another bunch of fixes
  * [Fix] Neural: use version in ANN key profile
  * [Fix] Postpone lua state destruction to allow lua dtors to be used
  * [Fix] Prefer surbl/emails rule on rbl to preserve compatibility
  * [Fix] RBL: Fix behaviour of emails_domainonly
  * [Fix] Ratelimit: Fix dynamic score
  * [Fix] Rbl: Fix emailbl functions
  * [Fix] Really fix hyperscan workaround
  * [Fix] Set sanity limits for pcre2
  * [Fix] Settings: Fix settings check flags
  * [Fix] Sort keys when getting data from Lua when filling rules
  * [Fix] Statistics: Do not query Redis tokens when there are no learns
  * [Fix] Stop IO event on write finished in http connection
  * [Fix] Use heuristically detected text parts data
  * [Fix] Various fixes to QP encoding algorithm
  * [Fix] Various fixes to SSL state machine handler
  * [Fix] Various fixes to asn module
  * [Fix] Workaround for empty charset in rfc2231 encoding
  * [Project] Switch from torch to KANN
  * [Project] Add heartbeat events
  * [Project] Add preliminary support of the Kaspersky Scan Engine
  * [Project] Add preliminary version of maps expressions
  * [Project] Add preprocessed settings to the config structure
  * [Project] Add simple forward propagation function
  * [Project] Add small helpers for migration simplifications
  * [Project] Allow to replace body in milter
  * [Project] Bundle libev
  * [Project] First refactoring step libevent->libev
  * [Project] Implement syntax highlighting for Lua
  * [Project] Lua_magic: Adopt lua_magic stuff in mime_types
  * [Project] Remove libfann, gd and other unsupported stuff
  * [Project] Remove torch
  * [Project] Rework upstreams
  * [Rework] Allow execution of async events when hs compiles regexps
  * [Rework] Bayes expiry: eliminate `default` expiration mode
  * [Rework] Dkim: Remove signing code
  * [Rework] Dkim_signing: Move sign condition to dkim_signing
  * [Rework] Do not lowercase all data send to ClickHouse
  * [Rework] Drop url tags
  * [Rework] Eliminate lua_squeeze as it has shown no improvements
  * [Rework] Eliminate virtual scan time as it is useless
  * [Rework] Lua core: Use lightuserdata to index classes
  * [Rework] Lua_util: Another rework for extract_specific_urls
  * [Rework] Migrate from ip_score to reputation
  * [Rework] Move mime modification functions to lua_mime library
  * [Rework] Rbl: Major whitelisting logic rework
  * [Rework] Remove deprecated plugins
  * [Rework] Remove log helper worker
  * [Rework] Remove rspamd.classifiers.lua
  * [Rework] Rename filter.h to a more sane name
  * [Rework] Reorganise selectors implementation
  * [Rework] Replace linenoise with replxx
  * [Rework] Reputation: Remove ipnet from the ip reputation
  * [Rework] Reputation: Slashing - change name of symbols
  * [Rework] Rework children operations
  * [Rework] Rework config reload
  * [Rework] Rework expression API
  * [Rework] Rework image urls processing
  * [Rework] Rework initialisation to reduce static leaks count
  * [Rework] Rework request headers processing
  * [Rework] Slashing: Change versioning schema - move to 2.0
  * [Rework] Slashing: Turn off postfilters when passthrough result is set
  * [Rework] Start moving to replxx
  * [Rework] Stop support of signed HTTP maps to simplify code
  * [Rework] Store ASN as UInt32 in ClickHouse
  * [Rework] Url_redirector: Rewrite plugin
  * [Rework] Use a dedicated library for autolearn
  * [Rework] Use libsodium instead of hand crafted crypto implementations
  * [Rework] Use opaque structure to store a table of mime headers
  * [Rules] Add dedicated bitcoin addresses filter rule
  * [Rules] Add more detection to LEAKED_PASSWORD_SCAM
  * [Rules] Catch LTC addresses
  * [Rules] Reduce weight of RSPAMD_EMAILBL
  * [Rules] Rework LEAKED_PASSWORD_SCAM rule one more time