X-Git-Url: http://dolda2000.com/gitweb/?p=wrw.git;a=blobdiff_plain;f=wrw%2Fresp.py;h=e6810b4f0d69923110fc1e7d7a3f068bce8a4e4f;hp=b62ce0e4bdefe58d6473977f77c78eaadea9e223;hb=HEAD;hpb=388ed0605123d84cf2ed23dcd8a89de1b749a7b1

diff --git a/wrw/resp.py b/wrw/resp.py
index b62ce0e..e6810b4 100644
--- a/wrw/resp.py
+++ b/wrw/resp.py
@@ -1,3 +1,4 @@
+import sys, os, math
 from . import dispatch, proto, env
 from .sp import xhtml
 h = xhtml.cons()
@@ -42,10 +43,10 @@ class message(dispatch.restart):
         self.detail = detail
 
     def handle(self, req):
-        return skelfor(req).error(req, self.message, *self.detail)
+        return skelfor(req).message(req, self.message, *self.detail)
 
 class httperror(usererror):
-    def __init__(self, status, message = None, detail = None):
+    def __init__(self, status, message=None, detail=None):
         if message is None:
             message = proto.statusinfo[status][0]
         if detail is None:
@@ -62,12 +63,74 @@ class notfound(httperror):
         return super().__init__(404)
 
 class redirect(dispatch.restart):
-    def __init__(self, url, status = 303):
+    bases = {"url": proto.requrl,
+             "script": proto.scripturl,
+             "site": proto.siteurl}
+
+    def __init__(self, url, status=303, base="url"):
         super().__init__()
         self.url = url
         self.status = status
+        self.bases[base]
+        self.base = base
 
     def handle(self, req):
         req.status(self.status, "Redirect")
-        req.ohead["Location"] = proto.appendurl(proto.requrl(req), self.url)
+        req.ohead["Location"] = proto.appendurl(self.bases[self.base](req), self.url)
+        req.ohead["Content-Length"] = 0
+        return []
+
+class unmodified(dispatch.restart):
+    def handle(self, req):
+        req.status(304, "Not Modified")
+        req.ohead["Content-Length"] = "0"
         return []
+
+class fileiter(object):
+    def __init__(self, fp):
+        self.fp = fp
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        if self.fp is None:
+            raise StopIteration()
+        data = self.fp.read(16384)
+        if data == b"":
+            self.fp.close()
+            self.fp = None
+            raise StopIteration()
+        return data
+
+    def close(self):
+        if self.fp is not None:
+            self.fp.close()
+            self.fp = None
+
+class fileresp(dispatch.restart):
+    def __init__(self, fp, ctype, charset=None, cachable=True):
+        self.fp = fp
+        self.ctype = ctype
+        if charset is None and ctype.startswith("text/"):
+            charset = sys.getdefaultencoding()
+        self.charset = charset
+        self.cachable = cachable
+
+    def handle(self, req):
+        sb = None
+        if hasattr(self.fp, "fileno"):
+            sb = os.fstat(self.fp.fileno())
+        if self.cachable and sb and sb.st_mtime != 0:
+            if "If-Modified-Since" in req.ihead:
+                rtime = proto.phttpdate(req.ihead["If-Modified-Since"])
+                if rtime is not None and rtime >= math.floor(sb.st_mtime):
+                    raise unmodified()
+            req.ohead["Last-Modified"] = proto.httpdate(sb.st_mtime)
+        ctype = self.ctype
+        if self.charset is not None:
+            ctype += "; charset=%s" % (self.charset)
+        req.ohead["Content-Type"] = ctype
+        if sb and sb.st_size > 0:
+            req.ohead["Content-Length"] = str(sb.st_size)
+        return fileiter(self.fp)