April 1999 - Zope-Dev

ZServer loses leading slash from PATH_INFO...
by skip＠mojam.com 21 Apr '99

21 Apr '99

With ZopeHTTPServer I set SCRIPT_NAME to "" and the leading slash wound up in PATH_INFO. This was, as I recall, what Jim Fulton said it should be. I just discovered that ZServer seems to lose the leading slash from PATH_INFO. I've worked around the problem by setting SCRIPT_NAME to "/". Is this a bug or expected behavior? Thx, Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip(a)mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583

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ZServer/start.py suggestion
by skip＠mojam.com 21 Apr '99

21 Apr '99

I finally figured out today how to override environment variables in ZServer. By passing an "env" argument when instantiating the zhttp_handler class, you can pass in environment variables when starting ZServer: env = {} for key in os.environ.keys(): if key[0:5] == "HTTP_": env[key] = os.environ[key] if key[0:7] == "SCRIPT_": env[key] = os.environ[key] if key[0:7] == "SERVER_": env[key] = os.environ[key] pass zh = zhttp_handler(module=MODULE, uri_base="", env=env) Since it isn't mentioned in the Zope documentation (at least I couldn't find it), I suggest it be added to start.py with a descriptive comment: # If you are running ZServer behind a proxy server you may want to # override a number of REQUEST variables from the environment to allow # URL* and BASE* variables to be set to reflect the proxy's address. To # enable this capability, uncomment and modify the for loop below as # desired. env = {} #for key in os.environ.keys(): # if key[0:5] == "HTTP_": env[key] = os.environ[key] # if key[0:7] == "SCRIPT_": env[key] = os.environ[key] # if key[0:7] == "SERVER_": env[key] = os.environ[key] # pass zh = zhttp_handler(module=MODULE, uri_base="", env=env) Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip(a)mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583

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ZServer 1.0b1: spurious colon in HTTP response line (fwd)
by skip＠mojam.com 21 Apr '99

21 Apr '99

Zopistas: My brain is apparently fried and it's only 10am. I originally posted this to python-dev by mistake. Skip ------------------------- (Also reported to the bug catcher.) I'm trying to migrate from ZopeHTTPServer to ZServer 1.0b1. I was seeing the ZServer headers turning up in pages generated by the process. When I viewed the page source of the generated HTML I saw: HTTP/1.0: 200 OK Server: Zope/experimental ZServer/1.1b1 Date: Wed, 21 Apr 1999 13:00:38 GMT X-Powered-By: Zope (www.zope.org) Python (www.python.org) Connection: close Content-Type: text/html Content-Length: 7802  <HTML> <HEAD> <TITLE>Musi-Cal... Concert Schedules: Folk Music, Country Music, Rock Music & more!</TITLE> ... I run ZServer behind an Apache 1.3.3 running mod_proxy. Apparently Apache doesn't recognize the HTTP response when there is a colon following the version number and adds a simple set of headers itself. I guess web browsers either ignore that line or are more lenient in their parsing of the response. The following simple patch corrects the problem: diff -c2 HTTPResponse.py.~1~ HTTPResponse.py *** HTTPResponse.py.~1~ Tue Apr 13 15:21:12 1999 - --- HTTPResponse.py Wed Apr 21 09:05:00 1999 *************** *** 146,150 **** # status header must come first. ! append("HTTP/%s: %s" % (self._http_version, status)) if headers.has_key('status'): del headers['status'] - --- 146,150 ---- # status header must come first. ! append("HTTP/%s %s" % (self._http_version, status)) if headers.has_key('status'): del headers['status'] *************** Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip(a)mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583

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RE: [Zope-dev] ZServer via CVS?
by Michel Pelletier 21 Apr '99

21 Apr '99

> -----Original Message----- > From: skip(a)mojam.com [mailto:skip@mojam.com] > Sent: Wednesday, April 21, 1999 7:39 AM > To: zope-dev(a)zope.org > Subject: [Zope-dev] ZServer via CVS? > > > On the ZServer download page it states: > > ZServer 1.0b1 requires a new unreleased version of > ZPublisher. As a > convenience a recent snapshot of ZPublisher is included > here. But if you > know what's good for you, you'll use CVS to get the > latest unreleased > Zope sources. > > but then doesn't provide any pointers to CVS setup > information. I don't > always know what's good for me, but I pretend toq, so where > is the CVS setup > info? > http://www.zope.org/Community/CVS_public_access > Thx, > > Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip(a)mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583 _______________________________________________ Zope-Dev maillist - Zope-Dev(a)zope.org http://www.zope.org/mailman/listinfo/zope-dev (For non-developer, user-level issues, use the companion list, zope(a)zope.org, http://www.zope.org/mailman/listinfo/zope )

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ZServer via CVS?
by skip＠mojam.com 21 Apr '99

21 Apr '99

On the ZServer download page it states: ZServer 1.0b1 requires a new unreleased version of ZPublisher. As a convenience a recent snapshot of ZPublisher is included here. But if you know what's good for you, you'll use CVS to get the latest unreleased Zope sources. but then doesn't provide any pointers to CVS setup information. I don't always know what's good for me, but I pretend toq, so where is the CVS setup info? Thx, Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip(a)mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583

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FTP Authorizing and custom User Folder
by Service Informatique CHSR 21 Apr '99

21 Apr '99

Hello, Well, it seems that the FTP support in ZServer *requires* a Basic Auth User Folder (such as the one that is shipped with Zope) to allow someone to login. My site has a cookies enabled UserDb Folder at the toplevel, and whatever I try to do with FTP, I get "unauthorized" error. However, If I replace the top level UserDb Folder with a "normal" User Folder, everything works as intended. I needn't FTP support right now (It was just for playing), but if this report can help to produce a better ZServer... Regards, Jephte CLAIN, Service Informatique CHSR

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Solved
by David Ascher 20 Apr '99

20 Apr '99

Re: my previous message re: corrupted DB. Somehow my Python process had relinquished control over the console w/ an error message, but hadn't in fact bailed. When killing the process, I was able to restart Zope. Sorry for the waste of bandwidth. --david ascher

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Hmm.
by David Ascher 20 Apr '99

20 Apr '99

I was about to send a message saying that I'd managed to get fsimport to work, but apparently it worked only at the cost of corrupting the DB: /usr/Zope:> python serve.py Traceback (innermost last): File "serve.py", line 102, in ? ZopeHTTPServer.main(sys.argv[1:]+[os.path.join(os.getcwd(),'lib','python','M ain.py')]) File "d:\Zope\ZopeHTTPServer\ZopeHTTPServer.py", line 528, in main start(module_file,host,port,threading,env) File "d:\Zope\ZopeHTTPServer\ZopeHTTPServer.py", line 466, in start set_published_module(module_file,BoboRequestHandler,env) File "d:\Zope\ZopeHTTPServer\ZopeHTTPServer.py", line 462, in set_published_mo dule __import__(name) # to catch problem modules right away File "d:\Zope\lib\python\Main.py", line 103, in ? Bobobase=OFS.Application.open_bobobase() File "d:\Zope\lib\python\OFS\Application.py", line 305, in open_bobobase Bobobase=Globals.Bobobase=Globals.PickleDictionary( File "d:\Zope\lib\python\BoboPOS\PickleDictionary.py", line 159, in __init__ db=apply(DBType,(),storage_options) File "d:\Zope\lib\python\BoboPOS\SimpleDB.py", line 221, in __init__ self.open(file_name,create,revision_time,meta_index,read_only) File "d:\Zope\lib\python\BoboPOS\SimpleDB.py", line 259, in open v=file.read(len(self.packed_version)) IOError: [Errno 13] Permission denied What can I do to "undo" if I can't start either server.py or ZServer? --david [In case it matters, I made a typo and fsimported a much bigger directory than is reasonable -- I suspect that's the source of the problem]

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Acquisition Questions
by kent＠tiamat.goathill.org 20 Apr '99

20 Apr '99

I have a couple of probably dumb questions... I'm attempting to develop a future Zope product and am currently testing it using ZPublisher in order to make sure I'm not too far off in left field. I have a rather large set of file-based genetic databases which I want to publish. There is no 'database manager', only 25 or so years worth of Fortran code to build, manage and query the database files besides the database search capabilities that I'm writing. The database files are actually two files which include a table format specification and the table file. The databases are arranged in a fashion in the file-system which includes a file index for each database encountered in that directory. What I have done is to build a hierarchy of object instances which correspond to the subdirectories and files contained within that file-system. Not by happenstance, each instance highly resembles a TinyTable and is query-able in the same fashion as TinyTables. For example, say I have a base subdirectory named 'psys', which contains a single subdirectory 'XMP' which contained one Database and one Subdirectory 'LOCUS' containing unlinked files (support files not directly linked to a database) psys/ (Connection) example/ (SubDir) XMP/ (PedSys_DB - Database) <Database Files> (PedSysFile) LOCUS/ (SubDir) <unlinked files> (PedSysFile) >>> for i in psys.__dict__.keys(): ... print i,': ',psys.__dict__[i] id : psys title : '' _objects : ({'meta_type': 'PedSys_SubDir', 'id': 'example'},) _rows : ['example'] example : <SubDir instance at 0x975a0> >>> for i in psys.example.XMP.__dict__.keys(): ... print i,': ',psys.example.XMP.__dict__[i] id : XMP title : Example Database _objects : ({'meta_type': 'PedSys_Datafile', 'id': 'MASTER'}, [...] _rows : [['XMP', 'MASTER', 'Example Master File', 'Example', [...] SAMPLES : <PedSysFile instance at 0x97600> MASTER : <PedSysFile instance at 0x975c0> QUANTGEN : <PedSysFile instance at 0x975d0> HEMOGLOB : <PedSysFile instance at 0x97610> An example query would be: >>> psys.example.XMP.SAMPLES(EGO='ID097', PNTR=1) [['ID097', 'S219', '19800701', '9ML', 'LOW', '', 'HL', 'HOSP', 1]] And from ZPublisher: http://<hostname>/psys/example/XMP/SAMPLES/index_html returns the default HTML view of the table. It's basically a superset of the capability to publish a file-system hierarchy which recursively instantiates subdirectories and builds tables of the items found in those subdirectories. Question #1: ------------ With Zope External Methods, I can instantiate an external method at the root of the Zope hierarchy which returns attributes of self, where self is any object instance. When I take the exact same method and include it in the base Connection class, All references to self look at that base class: >>> for i in psys.testit(): ... print i self.__dict__= _rows:['example'] _objects:({'meta_type': 'PedSys_SubDir', 'id': 'example'},) example:<SubDir instance at 0x975a0> >>> for i in psys.example.testit(): ... print i self.__dict__= _rows:['example'] _objects:({'meta_type': 'PedSys_SubDir', 'id': 'example'},) example:<SubDir instance at 0x975a0> So how do I get the method 'testit' to point to the correct 'self' as I can do with an External Method? Question #2: ------------ How do I point a DTML method at the correct object ? summary_dtml = """ , <BR>  """ def summary (self): return HTML(self.summary_dtml) >>> psys.example.XMP.SAMPLES.summary()() Traceback (innermost last): File "<stdin>", line 1, in ? File "./DT_String.py", line 513, in __call__ File "./DT_In.py", line 620, in renderwob File "./DT_Util.py", line 266, in eval File "<string>", line 0, in ? NameError: colNames >>> psys.example.XMP.SAMPLES.colNames() ['ID', 'SAMPLE', 'DATE', 'VIAL', 'SAMPLE', 'TYPE', 'PROJ', 'COMMNT', 'PNTR'] (I obviously don't have things wired up correctly...) Thanks Kent

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fsimport incompatible with latest non-release?
by David Ascher 20 Apr '99

20 Apr '99

When I try to do an fsimport w/ yesterday's Zope, I always get a failure: <html> <head> <title>Bad Request</title> </head> <body> Sorry, an error occurred.<p>  </body> </html> Is this a known problem, or am I doing something wrong? --david

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