yahoo-eng-team team mailing list archive

[Stephen Crawley <1981165@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Currently, the text box for the Description is a multi-line text area.
But if you try to enter more than one line it fails saying "Error:
Unable to modify instance "name of instance".

It turns out that the Nova / Nova client will reject any description
that doesn't match a gnarly regex.  And newlines are rejected by that
regex.  The error message you get from the CLI is like this:


Invalid input for field/attribute description. Value: helloworld. 'hello\nworld' does not match '^[\\ -\\~\xa0-¬®-ͷͺ-Ϳ΄-ΊΌΎ-ΡΣ-ԯԱ-Ֆՙ-֊֍-֏-א-תׯ-״؆-؛؞-۞-܍ܐ-ݍ-ޱ߀-ߺ-࠰-࠾ࡀ-࡞ࡠ-ࡪࢠ-ࢴࢶ-ࢽ--ঃঅ-ঌএ-ঐও-নপ-রলশ-হ-ে-ৈো-ৎৗড়-ঢ়য়-০--ਃਅ-ਊਏ-ਐਓ-ਨਪ-ਰਲ-ਲ਼ਵ-ਸ਼ਸ-ਹਾ---ਖ਼-ੜਫ਼੦-੶-ઃઅ-ઍએ-ઑઓ-નપ-રલ-ળવ-હ--ૉો-ૐૠ-૦-૱ૹ--ଃଅ-ଌଏ-ଐଓ-ନପ-ରଲ-ଳଵ-ହ-େ-ୈୋ--ୗଡ଼-ଢ଼ୟ-୦-୷-ஃஅ-ஊஎ-ஐஒ-கங-சஜஞ-டண-தந-பம-ஹா-ூெ-ைொ-ௐௗ௦-௺-ఌఎ-ఐఒ-నప-హఽ-ౄ---ౘ-ౚౠ-౦-౯౷-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹ-ೄ-ೈೊ-ೕ-ೖೞೠ-೦-೯ೱ-ೲ-ഃഅ-ഌഎ-ഐഒ-െ-ൈൊ-൏ൔ-൦-ൿං-ඃඅ-ඖක-නඳ-රලව-ෆා-ෘ-ෟ෦-෯ෲ-෴ก-฿-๛ກ-ຂຄຆ-ຊຌ-ຣລວ-ຽເ-ໄໆ-໐-໙ໜ-ໟༀ-ཇཉ-ཬ--྾-࿌࿎-࿚က-ჅჇჍა-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚ-፼ᎀ-᎙Ꭰ-Ᏽᏸ-ᏽ᐀-᚜ᚠ-ᛸᜀ-ᜌᜎ-ᜠ-᜶ᝀ-ᝠ-ᝬᝮ-ᝰ-ក-០-៩៰-៹᠀-᠐-᠙ᠠ-ᡸᢀ-ᢪᢰ-ᣵᤀ-ᤞ-ᤫᤰ-᥀᥄-ᥭᥰ-ᥴᦀ-ᦫᦰ-ᧉ᧐-᧚᧞-᨞---᪉᪐-᪙᪠-᪭--ᭋ᭐-᭼-᯳᯼-᰻-᱉ᱍ-ᲈᲐ-ᲺᲽ-᳇-ᳺᴀ--ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ῄῆ-ΐῖ-Ί῝-`ῲ-ῴῶ-῾\u2000-\u200a‐-‧\u202f-\u205f⁰-ⁱ⁴-₎ₐ-ₜ₠-₿-℀-↋←-␦⑀-⑊①-⭳⭶-⮕⮘-Ⱞⰰ-ⱞⱠ-ⳳ⳹-ⴥⴧⴭⴰ-ⵧⵯ-⵰-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ-⹏⺀-⺙⺛-⻳⼀-⿕⿰-⿻\u3000-〿ぁ-ゖ-ヿㄅ-ㄯㄱ-ㆎ㆐-ㆺ㇀-㇣ㇰ-㈞㈠-䶵䷀-鿯ꀀ-ꒌ꒐-꓆ꓐ-ꘫꙀ-꛷꜀-ꞿꟂ-Ᶎꟷ-꠫꠰-꠹ꡀ-꡷ꢀ-꣎-꣙-꥓꥟-ꥼ-꧍ꧏ-꧙꧞-ꧾꨀ-ꩀ-ꩍ꩐-꩙꩜-ꫂꫛ-ꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭧꭰ-꯰-꯹가-힣--豈-舘並-龎ff-stﬓ-ﬗיִ-זּטּ-לּמּנּ-סּףּ-פּצּ-﯁ﯓ-﴿ﵐ-ﶏﶒ-ﷇﷰ-﷽-︙-﹒﹔-﹦﹨-﹫ﹰ-ﹴﹶ-ﻼ！-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ￠-￦￨-￮-�]*$'

... which you would NOT want to show to an end user!

Possible fixes for the problem would include:

- Add help text to the Edit Instance form to describe the limitations on the text allowed in the Description.
- Change the "look and feel" of the box to avoid giving the impression that multi-line descriptions are OK.
- Change the UI to reject descriptions with bad characters ... before the get sent to nova / nova client
- Detect the specific response message and translate it into a meaningful user error message; e.g. something like "Error: Description contains one or more unacceptable characters".

At least the first one ... please.

This syndrome may apply to other name, description and other text fields
in the UI.  I didn't do looking for examples.

** Affects: horizon
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1981165

Title:
  Edit Instance - description box should not accept multi-line input

Status in OpenStack Dashboard (Horizon):
  New

Bug description:
  Currently, the text box for the Description is a multi-line text area.
  But if you try to enter more than one line it fails saying "Error:
  Unable to modify instance "name of instance".

  It turns out that the Nova / Nova client will reject any description
  that doesn't match a gnarly regex.  And newlines are rejected by that
  regex.  The error message you get from the CLI is like this:

  
  Invalid input for field/attribute description. Value: helloworld. 'hello\nworld' does not match '^[\\ -\\~\xa0-¬®-ͷͺ-Ϳ΄-ΊΌΎ-ΡΣ-ԯԱ-Ֆՙ-֊֍-֏-א-תׯ-״؆-؛؞-۞-܍ܐ-ݍ-ޱ߀-ߺ-࠰-࠾ࡀ-࡞ࡠ-ࡪࢠ-ࢴࢶ-ࢽ--ঃঅ-ঌএ-ঐও-নপ-রলশ-হ-ে-ৈো-ৎৗড়-ঢ়য়-০--ਃਅ-ਊਏ-ਐਓ-ਨਪ-ਰਲ-ਲ਼ਵ-ਸ਼ਸ-ਹਾ---ਖ਼-ੜਫ਼੦-੶-ઃઅ-ઍએ-ઑઓ-નપ-રલ-ળવ-હ--ૉો-ૐૠ-૦-૱ૹ--ଃଅ-ଌଏ-ଐଓ-ନପ-ରଲ-ଳଵ-ହ-େ-ୈୋ--ୗଡ଼-ଢ଼ୟ-୦-୷-ஃஅ-ஊஎ-ஐஒ-கங-சஜஞ-டண-தந-பம-ஹா-ூெ-ைொ-ௐௗ௦-௺-ఌఎ-ఐఒ-నప-హఽ-ౄ---ౘ-ౚౠ-౦-౯౷-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹ-ೄ-ೈೊ-ೕ-ೖೞೠ-೦-೯ೱ-ೲ-ഃഅ-ഌഎ-ഐഒ-െ-ൈൊ-൏ൔ-൦-ൿං-ඃඅ-ඖක-නඳ-රලව-ෆා-ෘ-ෟ෦-෯ෲ-෴ก-฿-๛ກ-ຂຄຆ-ຊຌ-ຣລວ-ຽເ-ໄໆ-໐-໙ໜ-ໟༀ-ཇཉ-ཬ--྾-࿌࿎-࿚က-ჅჇჍა-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚ-፼ᎀ-᎙Ꭰ-Ᏽᏸ-ᏽ᐀-᚜ᚠ-ᛸᜀ-ᜌᜎ-ᜠ-᜶ᝀ-ᝠ-ᝬᝮ-ᝰ-ក-០-៩៰-៹᠀-᠐-᠙ᠠ-ᡸᢀ-ᢪᢰ-ᣵᤀ-ᤞ-ᤫᤰ-᥀᥄-ᥭᥰ-ᥴᦀ-ᦫᦰ-ᧉ᧐-᧚᧞-᨞---᪉᪐-᪙᪠-᪭--ᭋ᭐-᭼-᯳᯼-᰻-᱉ᱍ-ᲈᲐ-ᲺᲽ-᳇-ᳺᴀ--ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ῄῆ-ΐῖ-Ί῝-`ῲ-ῴῶ-῾\u2000-\u200a‐-‧\u202f-\u205f⁰-ⁱ⁴-₎ₐ-ₜ₠-₿-℀-↋←-␦⑀-⑊①-⭳⭶-⮕⮘-Ⱞⰰ-ⱞⱠ-ⳳ⳹-ⴥⴧⴭⴰ-ⵧⵯ-⵰-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ-⹏⺀-⺙⺛-⻳⼀-⿕⿰-⿻\u3000-〿ぁ-ゖ-ヿㄅ-ㄯㄱ-ㆎ㆐-ㆺ㇀-㇣ㇰ-㈞㈠-䶵䷀-鿯ꀀ-ꒌ꒐-꓆ꓐ-ꘫꙀ-꛷꜀-ꞿꟂ-Ᶎꟷ-꠫꠰-꠹ꡀ-꡷ꢀ-꣎-꣙-꥓꥟-ꥼ-꧍ꧏ-꧙꧞-ꧾꨀ-ꩀ-ꩍ꩐-꩙꩜-ꫂꫛ-ꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭧꭰ-꯰-꯹가-힣--豈-舘並-龎ff-stﬓ-ﬗיִ-זּטּ-לּמּנּ-סּףּ-פּצּ-﯁ﯓ-﴿ﵐ-ﶏﶒ-ﷇﷰ-﷽-︙-﹒﹔-﹦﹨-﹫ﹰ-ﹴﹶ-ﻼ！-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ￠-￦￨-￮-�]*$'

  ... which you would NOT want to show to an end user!

  Possible fixes for the problem would include:

  - Add help text to the Edit Instance form to describe the limitations on the text allowed in the Description.
  - Change the "look and feel" of the box to avoid giving the impression that multi-line descriptions are OK.
  - Change the UI to reject descriptions with bad characters ... before the get sent to nova / nova client
  - Detect the specific response message and translate it into a meaningful user error message; e.g. something like "Error: Description contains one or more unacceptable characters".

  At least the first one ... please.

  This syndrome may apply to other name, description and other text
  fields in the UI.  I didn't do looking for examples.

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