Supporting wildcard subdomains #297
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I know we discussed some of the functionality prior but both those issues are specifically titled as pertaining to paths and nothing turned up when searching for "wildcard" or "subdomains". I thought it best to create a separate issue specific for this use case which can be found by anyone looking. |
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Nothing wrong with the issue. |
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This feature is really important for me too! :) |
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+1 |
thibaultcha
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Jul 5, 2015
An API's `public_dns` can now contain one '*' at the start or at the end of the string, and on a dot border (same rules as http://nginx.org/en/docs/http/server_names.html#wildcard_names). If so, it will get special treatment during the lookup and the resolver will try to match any given `Host` header against all wildcard public_dns. We keep things efficient by guaranteeing O(1) lookup for non wildcard public_dns. Only wildcard public_dns and paths will be O(n). Implements #297.
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👍 |
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Implemented. |
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Just a heads up on this: 0.4 has been quietly released now so this is available. We would love to hear feedback about 0.4 and the new features if you want to try it out. Thanks! |
ctranxuan
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Aug 25, 2015
An API's `public_dns` can now contain one '*' at the start or at the end of the string, and on a dot border (same rules as http://nginx.org/en/docs/http/server_names.html#wildcard_names). If so, it will get special treatment during the lookup and the resolver will try to match any given `Host` header against all wildcard public_dns. We keep things efficient by guaranteeing O(1) lookup for non wildcard public_dns. Only wildcard public_dns and paths will be O(n). Implements Kong#297. Former-commit-id: e04a36e3ce2010c0b2d9ddcb52d49b97aed13a41
bungle
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Oct 15, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
bungle
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Oct 15, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
bungle
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Oct 16, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
bungle
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Oct 16, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
hishamhm
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Oct 18, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
dndx
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Nov 1, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
locao
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Nov 5, 2019
- utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 - pl.compat now provides unpack as table.unpack on Lua 5.1 - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
hutchic
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Nov 21, 2019
#### 1.7.0 (2019-10-14) ##### New features - utils.quote_arg will now optionally take an array of arguments and escape them all into a single string. - app.parse_args now accepts a 3rd parameter with a list of valid flags and aliases - app.script_name returns the name of the current script (previously a private function) ##### Changes - Documentation updates - utils.quit: exit message is no longer required, and closes the Lua state (on 5.2+). - utils.assert_arg and utils.assert_string: now return the validated value - pl.compat: now exports the jit and jit52 flags - pretty.write: now sorts the output for easier diffs #293 ##### Fixes - utils.raise changed the global on_error-level when passing in bad arguments - utils.writefile now checks and returns errors when writing - compat.execute now handles the Windows exitcode -1 properly - types.is_empty would return true on spaces always, indepedent of the parameter - types.to_bool will now compare case-insensitive for the extra passed strings - app.require_here will now properly handle an absolute base path - stringx.split will no longer append an empty match if the number of requested elements has already been reached #295 - path.common_prefix and path.relpath return the result in the original casing (only impacted Windows) #297 - dir.copyfile, dir.movefile, and dir.makepath create the new file/path with the requested casing, and no longer force lowercase (only impacted Windows) #297 - added a missing assertion on path.getmtime #291 - stringx.rpartition returned bad results on a not-found #299 #### 1.6.0 (2018-11-23) ##### New features - pl.compat now provides unpack as table.unpack on Lua 5.1 ##### Changes - utils.unpack is now documented and respects .n field of its argument. - tablex.deepcopy and tablex.deepcompare are now cycle aware (#262) - Installing through LuaRocks will now include the full rendered documentation ##### Fixes - Fixed seq.last returning nil instead of an empty list when given an empty iterator (#253). - pl.template now applies tostring when substituting values in templates, avoiding errors when they are not strings or numbers (#256). - Fixed pl.import_into not importing some Penlight modules (#268). - Fixed version number stuck at 1.5.2 (#260). - Fixed types.is_empty returning true on tables containing false key (#267). - Fixed test.assertraise throwing an error when passed an array with a function to call plus its arguments (#272). - Fixed test.assertraise not throwing an error when given function does not error but instead returns a string matching given error pattern. - Fixed placeholder expressions being evaluated with wrong precedence of binary and unary negation. - Fixed placeholder expressions being evaluated assuming wrong binary operator associativity (e.g. _1-(_2+_3) was evaluated as (_1-_2)+_3. - Fixed placeholder expressions being evaluated as if unary operators take precedence over power operator (e.g. (-_1)^_2) was evaluated as -(_1^2)). - Fixed vulnerable backtracking pattern in pl.stringx.strip (#275)
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How can do this in DB less mode?? When I use regex in domain part kong is throwing an error. I came across https://docs.konghq.com/hub/flash/set-dynamic-upstream-host/ which is not compatible in DB less mode. |
2 tasks
@sudheer-jerripotula This is a very old issue that was closed a long time ago — any routing configuration that's supported with DB mode should work with DB-less as well. Which error are you getting?
The info in that documentation page looks inconsistent (I just posted a docs issue about it), but the sidebar info says it is compatible with DB-less. Did you give that plugin a try? |
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It's extremely common to use wildcards in DNS records, and I've hit a case where I need to have kong match all requests with the host
*.example.org. Currently kong only works with an exact match ofpublic_dnsbut my DNS record is set to*.example.orgso I'd like Kong to matchexample.com,something.example.comand evena.b.c.example.com.Relevant nginx doc: http://nginx.org/en/docs/http/server_names.html#wildcard_names
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