Communication terminal, content delivery system, content delivery method, and communication terminal control program

A content delivery method comprising:

• storing a content and a content holder list listing a content holder that holds the content, in a mutually associated manner, receiving an external signal, detecting a neighboring communication terminal, and outputting a terminal identifier of the neighboring communication terminal included in the external signal;
• searching the content holder list in accordance with the terminal identifier, determining the content related to the unsearched content holder list as an unheld content, and outputting the unheld content as a transmitted content, with the terminal identifier as a destination terminal identifier;
• and
• creating, in accordance with the determination result, a content message including the transmitted content and the destination terminal identifier, with a local terminal identifier as a transmission terminal identifier, or a content list message including a content list of the transmitted content and the destination terminal identifier, with the local terminal identifier as the transmission terminal identifier, and transmitting the created message as a content information message to the neighboring communication terminal.

A non-transitory computer-readable recording medium recording a communication terminal control program causing a computer of a communication terminal including a content DB that stores a content and a content holder list listing a content holder that holds the content, in a mutually associated manner, to operate as:

• neighboring terminal detection unit that receives an external signal, detects a neighboring communication terminal, and outputs a terminal identifier of the neighboring communication terminal included in the external signal;
• content transmission determination unit that searches the content holder list in accordance with the terminal identifier, determines the content related to the unsearched content holder list as an unheld content, and outputs the unheld content as a transmitted content, with the terminal identifier as a destination terminal identifier;
• and
• content information transmission-reception unit that creates, in accordance with the determination result, a content message including the transmitted content and the destination terminal identifier, with a local terminal identifier as a transmission terminal identifier, or a content list message including a content list of the transmitted content and the destination terminal identifier, with the local terminal identifier as the transmission terminal identifier, and transmits the created message as a content information message to the neighboring communication terminal.