java - Punycode for Unicode query parameter -

-

i trying encode unicode urls punycode. these urls have query parameter contains non-ascii characters, example:

https://en.wiktionary.org/w/index.php?title=clœlia&printable=yes

the problem is, when try in java, resulting url wrong:

string link = "https://en.wiktionary.org/w/index.php?title=clœlia&printable=yes"; link = idn.toascii(link);  // -> link = http://en.wiktionary.org/w/index.xn--php?title=cllia&printable=yes-hgf

if way, resulting string different (i don't know why), wrong:

string link = "http://en.wiktionary.org/w/index.php?title=" + idn.toascii("clœlia") + "&printable=yes";  // -> link = http://en.wiktionary.org/w/index.php?title=xn--cllia-ibb&printable=yes

if copy address chrome , paste here, url, want:

https://en.wiktionary.org/w/index.php?title=cl%c5%93lia&printable=yes

what did wrong here?

what did wrong use punycode. punycode used domain names, including domain-name part of url, only.

other parts of url, including query-parameter part, use percent encoding known url encoding or uri encoding, , chrome doing; encodes non-ascii unicode characters in utf-8, , octets aren't in limited subset of ascii using percent-sign (%) , 2 hex digits; octets 80-ff used utf-8 non-ascii %-encoded. exact query-parameter part , other parts use slight variant defined html form submission application/x-www-form-urlencoded; encodes space plus-sign '+' instead of %20, unambiguous because '+' in unsafe set encoded %2b.

in java use java.net.urlencoder.encode , java.net.urldecoder.decode this; reliable results use newer 2-arg forms encoding name "utf-8".


Comments

Post a Comment

Popular posts from this blog

PHP DOM loadHTML() method unusual warning -

-
i had following code works fine on localhost: $document = new domdocument(); $document->loadhtml($p_result); $form = $document->getelementsbytagname('form')->item(0); // code continues using $form variable after same code updated on outside server, loadhtml() failed , issued warning. warning: domdocument::loadhtml() expects parameter 1 valid path, string given in path/name/to/script.php returned null instead of object code pretty gets fatal error. note contents of $p_result absolutely same on outside server , on localhost. but why displays kind of warning , why not work? doesn't loadhtml() expects argument 1 string in first place? why method expects parameter 1 valid path ? just make clear i'm not calling loadhtmlfile() , i'm calling loadhtml() . thanks. you're affected one of php bugs . issue present in php 5.6.8 , 5.6.9. have affected php version on server, , bug-free version on localhost. the bug forbids null
Read more

python - How to create jsonb index using GIN on SQLAlchemy? -

-
here's current code creating index jsonb. index("mytable_data_idx_id_key", mytable.data['id'].astext, postgresql_using='gin') but got error. sqlalchemy.exc.programmingerror: (psycopg2.programmingerror) data type text has no default operator class access method "gin" hint: must specify operator class index or define default operator class data type. [sql: "create index event_data_idx_id_key on event using gin ((data ->> 'id'))"] is there way create index on sqlalchemy? the postgresql specific sqlalchemy docs @ http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html#operator-classes mention postgresql_ops dictionary provide "operator class" used postgresql, , provide example illustrating use: index('my_index', my_table.c.id, my_table.c.data, postgresql_ops={ 'data': 'text_pattern_ops',
Read more

c# - TransactionScope not rolling back although no complete() is called -

-
i'm using transactionscope rollback transaction fail bool errorreported = false; action<importerrorlog> newerrorcallback = e => { errorreported = true; errorcallback(e); }; using (var transaction = new transactionscope()) { foreach (importtaskdefinition task in taskdefinition) { loader.load(streamfile, newerrorcallback, task.destinationtable, processingtaskid); } if (!errorreported) transaction.complete(); } i'm sure there no transactionscope started ahead or after code. i'm using entity framework insert in db. regardless state of errorreported transaction never rolled in case of error. what missing ? transactionscope sets transaction.current . that's does. wants transacted must @ property. i believe ef each time connection opened reason. probably, connection open when scope installed. open connection inside of scope or enlist manually. ef has nasty "design decision": default opens
Read more