Proxy server with dynamic memory buffer

A method, comprising:

• receiving, by a proxy server, web content requested by an application of a user device;
• initializing, by the proxy server, a memory buffer of a first size, wherein the memory buffer of the first size stores a header of the web content;
• determining, by the proxy server, a set of filtering rules associated with a user of the user device;
• determining, by the proxy server, whether to modify body content of the web content based on the set of filtering rules;
• expanding, by the proxy server in response to determining that the body content of the web content is to be modified, the memory buffer to a second size larger than the first size;
• modifying, by the proxy server, in the memory buffer after expanding the memory buffer to the second size, the body content based on the set of filtering rules, without injecting a script into the body content, to form modified body content;
• and
• delivering, by the proxy server, modified web content comprising the modified body content and the header to the application of the user device.

An apparatus, comprising:

• a memory storing processor-readable code;
• at least one processor coupled to the memory, the at least one processor configured to execute the processor-readable code to cause the at least one processor to performing operations including:
• receiving, by a proxy server, web content requested by an application of a user device;
• initializing, by the proxy server, a memory buffer of a first size, wherein the memory buffer of the first size stores a header of the web content;
• determining, by the proxy server, a set of filtering rules associated with a user of the user device;
• determining, by the proxy server, whether to modify body content of the web content based on the set of filtering rules;
• expanding, by the proxy server in response to determining that the body content of the web content is to be modified, the memory buffer to a second size larger than the first size;
• modifying, by the proxy server, in the memory buffer after expanding the memory buffer to the second size, the body content based on the set of filtering rules, without injecting a script into the body content, to form modified body content;
• and
• delivering, by the proxy server, modified web content comprising the modified body content and the header to the application of the user device.

A computer program product, comprising:

• a non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:
• receiving, by a proxy server, web content requested by an application of a user device;
• initializing, by the proxy server, a memory buffer of a first size, wherein the memory buffer of the first size stores a header of the web content;
• determining, by the proxy server, a set of filtering rules associated with a user of the user device;
• determining, by the proxy server, whether to modify body content of the web content based on the set of filtering rules;
• expanding, by the proxy server in response to determining that the body content of the web content is to be modified, the memory buffer to a second size larger than the first size;
• modifying, by the proxy server, in the memory buffer after expanding the memory buffer to the second size, the body content based on the set of filtering rules, without injecting a script into the body content, to form modified body content;
• and
• delivering, by the proxy server, modified web content comprising the modified body content and the header to the application of the user device.