【发布时间】:2013-07-13 00:29:54
【问题描述】:
我在 ISAPI 过滤器中设置多个 cookie 时遇到问题。我想在所有 cookie 中添加 HttpOnly 标志。
所以,在我的第一次尝试中,我拆分了 cookie 值并添加了 HttpOnly 标志,然后将它们组合成一个字符串,最后调用 pResponse->SetHeader(pfc, "Set-Cookie:", szNewValue),浏览器只获取第一个 cookie 值。
第一次尝试代码:
cbValue = sizeof(szValue) / sizeof(szValue[0]);
if (pResponse->GetHeader(pfc, "Set-Cookie:", szValue, &cbValue))
{
char szNewValue[MAX_URI_SIZE] = "";
char* token = NULL;
char* context = NULL;
char delim[] = ",";
// szValue format like
// "Language=en; expires=Sat, 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly,Language=en; expires=Sat, 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly"
// After first split
// token = "Language=en; expires=Sat"
// context = " 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly,Language=en; expires=Sat, 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly"
token = strtok_s(szValue, delim, &context);
while (token != NULL)
{
strcat_s(szNewValue, token);
if (NULL != context)
{
if (' ' != context[0] && !strstr(token, "HttpOnly"))
{
strcat_s(szNewValue, "; HttpOnly");
}
// context[0] = ' ' means it split the one whole cookie, not an entire cookie, we need append ","
// context[0] != '\0' means other cookies after, we need append delimiter ","
if (' ' == context[0] || '\0' != context[0])
{
strcat_s(szNewValue, ",");
}
}
// NULL, function just re-uses the context after the first read.
token = strtok_s(NULL, delim, &context);
}
if (!pResponse->SetHeader(pfc, "Set-Cookie:", szNewValue))
{
// Fail securely - send no cookie!
pResponse->SetHeader(pfc,"Set-Cookie:","");
}
在第二次尝试中,我拆分了 cookie 值,并为每个 cookie 调用 pResponse->SetHeader(pfc, "Set-Cookie:", szNewValue),但在这种情况下浏览器只获取最后一个 cookie。
第二次尝试代码:
cbValue = sizeof(szValue) / sizeof(szValue[0]);
if (pResponse->GetHeader(pfc, "Set-Cookie:", szValue, &cbValue))
{
char szNewValue[MAX_URI_SIZE] = "";
char* token = NULL;
char* context = NULL;
char delim[] = ",";
// szValue format like
// "Language=en; expires=Sat, 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly,Language=en; expires=Sat, 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly"
// After first split
// token = "Language=en; expires=Sat"
// context = " 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly,Language=en; expires=Sat, 15-Jul-2113 02:46:27 GMT; path=/; HttpOnly"
token = strtok_s(szValue, delim, &context);
while (token != NULL)
{
strcat_s(szNewValue, token);
if (NULL != context)
{
if (' ' != context[0] && !strstr(token, "HttpOnly"))
{
strcat_s(szNewValue, "; HttpOnly");
}
// context[0] = ' ' means it split the one whole cookie, not an entire cookie, we need append ","
// context[0] != '\0' means other cookies after, we need append delimiter ","
if (' ' == context[0])// || '\0' != context[0])
{
strcat_s(szNewValue, ",");
}
if (' ' != context[0])
{
pResponse->SetHeader(pfc, "Set-Cookie:", szNewValue);
strcpy(szNewValue, "");
}
}
// NULL, function just re-uses the context after the first read.
token = strtok_s(NULL, delim, &context);
}
我在 IE10+Win2008 R2 中执行此操作。在这两种情况下,结果 cookie 字符串的格式都正确。有人对此有任何线索吗?
这个问题的存在基本上是因为当您调用GetHeader 时,您会在一个逗号分隔的字符串中收到所有cookie。使用 SetHeader 方法将所有 cookie 设置回响应的最佳方法是什么?
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标签: c++ winapi iis cookies isapi