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Monotone-Parent: 027083e4ddfcc14898e7dd8b6e08c73058f18778 Monotone-Revision: 1475912d0e20ad5f1180b0921306270039272161 Monotone-Author: ludovic@Sophos.ca Monotone-Date: 2010-07-22T15:13:09 Monotone-Branch: ca.inverse.sogo
2026-09-17 03:18:01 +00:00 · 2010-07-22 15:13:09 +00:00
parent 4307be07a2
commit eccf14efd0
8 changed files with 666 additions and 0 deletions
@@ -0,0 +1,135 @@
+# we perform no validation
+class PHPDeserializer:
+    def __init__(self, string):
+        self.string = string
+        if string is None:
+            self.length = 0
+        else:
+            self.length = len(string)
+        self.cursor = 0
+
+    def deserializeInteger(self):
+        start = self.cursor
+
+        done = False
+        while not done:
+            if self.cursor < self.length:
+                currentChar = self.string[self.cursor]
+                if currentChar.isdigit():
+                    self.cursor = self.cursor + 1
+                else:
+                    done = True
+            else:
+                done = True
+
+        length = self.cursor - start
+        if length > 0:
+            dInteger = int(self.string[start:self.cursor])
+        else:
+            dInteger = 0
+
+        return dInteger
+
+    def deserializeBoolean(self):
+        start = self.cursor
+
+        if self.cursor < self.length:
+            currentChar = self.string[self.cursor]
+            if currentChar == "0":
+                dBoolean = False
+            else:
+                dBoolean = True
+            self.cursor = self.cursor + 1
+        else:
+            dBoolean = None
+
+        return dBoolean
+
+    def deserializeString(self):
+        length = self.deserializeInteger()
+        start = self.cursor + 2
+        end = start+length
+        value = self.string[start:end]
+        self.cursor = end + 1
+
+        return value
+
+    def deserializeArray(self):
+        isHash = False
+        max = self.deserializeInteger()
+        dArray = [ None ] * max
+
+        self.cursor = self.cursor + 2
+        count = 0
+        while count < max:
+            elementIndex = self.deserialize()
+            self.cursor = self.cursor + 1
+            element = self.deserialize()
+            if isHash:
+                if type(elementIndex) == int:
+                    elementIndex = "%d" % elementIndex
+            else:
+                if type(elementIndex) != int:
+                    dArray = self._arrayToHash(dArray)
+                    isHash = True
+            dArray[elementIndex] = element
+            self.cursor = self.cursor + 1
+            count = count + 1
+
+        if self.string[self.cursor] != "}":
+            raise Exception, \
+                ("inconsistency detected in serialized string at character %d:\n%s"
+                 % (self.cursor, self._exceptionSample()))
+
+        return dArray
+
+    def _exceptionSample(self):
+        if self.cursor > 30:
+            start = self.cursor - 30
+            prefix = "..."
+        else:
+            start = 0
+            prefix = ""
+        carret = self.cursor + len(prefix) - start
+        length = len(self.string)
+        if self.cursor + 30 < length:
+            end = self.cursor + 30
+            suffix = "..."
+        else:
+            end = length
+            suffix = ""
+
+        sample = self.string[start:end]
+        while sample[0] == " ":
+            carret = carret - 1
+            sample = sample[1:]
+
+        return "%s%s%s\n%s^" % (prefix, sample, suffix, carret * " ")
+
+    def _arrayToHash(self, array):
+        dHash = {}
+        count = 0
+        for element in array:
+            dHash["%d" % count] = element
+            count = count + 1
+
+        return dHash
+
+    def deserialize(self):
+        dObject = None
+
+        if self.string is not None and self.length > 0:
+            currentChar = self.string[self.cursor]
+            self.cursor = self.cursor + 2
+            if currentChar == 'a':
+                dObject = self.deserializeArray()
+            elif currentChar == 's':
+                dObject = self.deserializeString()
+            elif currentChar == 'i':
+                dObject = self.deserializeInteger()
+            elif currentChar == 'b':
+                dObject = self.deserializeBoolean()
+            elif currentChar == 'N':
+                dObject = None
+
+        return dObject